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boards/risc-v/esp32c3: add Waveshare ESP32-C3-Zero

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- Add initial support for Waveshare ESP32-C3-Zero.

Signed-off-by: simbit18 <simbit18@gmail.com>
This commit is contained in:
simbit18
2025-12-15 17:08:00 +01:00
committed by Lup Yuen Lee
parent 96af0ceedf
commit 946bd2b36e
22 changed files with 2566 additions and 0 deletions
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Documentation/platforms/risc-v/esp32c3/boards/esp32-c3-zero/ESP32-C3-Zero.jpg
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Documentation/platforms/risc-v/esp32c3/boards/esp32-c3-zero/index.rst
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===============================
Waveshare ESP32-C3-Zero
===============================
.. tags:: chip:ESP32-C3
The `Waveshare ESP32-C3-Zero <https://www.waveshare.com/wiki/ESP32-C3-Zero>`_ is a compact development board supplied by Waveshare.
.. figure:: ESP32-C3-Zero.jpg
:align: center
Features
========
* Low-power RISC-V 32-bit Single-core processor, up to 160MHz main frequency.
* Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth® 5 (LE).
* 400KB SRAM, 384KB ROM and built-in 4MB flash memory.
* 15 multi-function GPIO pins.
* 3× SPI, 1× I2C, 2× UART, 1× I2S, 2× ADC.
* Onboard WS2812 RGB led.
* Compact SMD ceramic antenna.
* Ultra-compact size: 23.5 × 18 mm
Buttons and LEDs
================
There are two buttons labeled BOOT and RESET.
The BOOT button is connected to GPIO9. On reset it is used as a strapping pin to determine whether the chip boots normally or into the serial bootloader. After reset, however, the BOOT button can be used for software input.
WS2812 LED is connected to GPIO10 and is available for software.
Pin Mapping
===========
Pads numbered anticlockwise from USB connector.
===== ========== ==========
Pad Signal Notes
===== ========== ==========
1 5V +5V Supply to board
2 GND Ground
3 3V3 Power output to peripherals
4 GPIO0
5 GPIO1
6 GPIO2
7 GPIO3
8 GPIO4 SCK (bit-banging)
9 GPIO5 MISO (bit-banging)
10 GPIO6 MOSI (bit-banging)
11 GPIO7 CSn (bit-banging)
12 GPIO8 SCL (bit-banging)
13 GPIO9 SDA (bit-banging)
14 GPIO10 To connect with WS2812 RGB LED
15 GPIO18 USB_D+
16 GPIO19 USB_D-
17 GPIO20 Default RX for UART0 serial console
18 GPIO21 Default TX for UART0 serial console
===== ========== ==========
.. note:: The Waveshare ESP32-C3-Zero does not have dedicated I2C and SPI pins.
However, you can implement software-based I2C or SPI (bit-banging) using any available GPIO pins.
Power Supply
============
There are two mutually exclusive ways to provide power to the board:
* USB Type-C Port
* supplying via VIN (5V) pin (3.3–6 V) and GND pin headers
Installation & Build
====================
For instructions on how to to install the build dependencies and create a NuttX
image for this board, consult the main :doc:`ESP32-C3 documentation
<../../index>`.
Serial Console
==============
A **USB Serial Adapter** is required to run NuttX on ESP32-C3-Zero with UART0 serial console.
Connect the USB Serial Adapter to ESP32-C3-Zero Serial Console at:
.. list-table:: USB Serial connections
:widths: auto
:header-rows: 1
* - USB Serial
- ESP32-C3-Zero Pin
* - GND
- GND (Pin 2)
* - RX
- GPIO21 (UART0 TX) (Pin 18)
* - TX
- GPIO20 (UART0 RX) (Pin 17)
A USB serial adapter with **+3.3V TTL level** UART signals is required.
Connect ESP32-C3-Zero to our computer with the USB Serial Adapter.
On our computer, start a Serial Terminal and connect to the USB Serial Port
at **115200 bps**.
NuttX will appear in the Serial Console when it boots on ESP32-C3-Zero.
Configurations
==============
All configurations listed below can be configured using the following command in
the ``nuttx`` directory (again, consult the main :doc:`ESP32-C3 documentation
<../../index>`):
.. code:: console
$ ./tools/configure.sh esp32-c3-zero:<config_name>
where <config_name> is the name of board configuration you want to use, i.e.: nsh, usbnsh, wifi...
.. list-table:: Build System
:widths: auto
:header-rows: 1
* - Build System
- Support
* - Make
- Yes
* - CMake
- No
.. code:: console
$ make flash ESPTOOL_PORT=/dev/ttyUSB0 -j
Then use a serial console terminal like ``picocom`` configured to **115200 8N1**.
jumbo
----------
This configuration enables many Apache NuttX features (console enabled in UART0, at **115200** bps).
This is mostly to help provide additional code coverage in CI, but also allows for a users
to see a wide range of features that are supported by the OS.
**I2C**
The I2C Tool can be used to scan and manipulate I2C devices.
You can scan for all I2C devices using the following command::
nsh> i2c dev -b 3 00 77
NOTE: Some devices may not appear with this scan.
You may also try a scan with the -z flag to discover more devices using a zero-byte write request.
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- 76 --
nsh>
.. tip:: Please refer to :doc:`I2C Tool </applications/system/i2c/index>`
for more information.
**SPI**
The SPI Tool provides a way to debug SPI related problems.
You can test it by connecting MOSI and MISO pins which are GPIO6 and GPIO5
by default to each other and running the ``spi`` example::
nsh> spi exch -b 3 "AB"
Sending: AB
Received: AB
.. tip:: Please refer to :doc:`SPI Tool </applications/system/spi/index>`
for more information.
**bmp280**
You can check that the Bosch BMP280 sensor over I2C is working by using the :doc:`bmp280 </applications/examples/bmp280/index>` application:
.. list-table:: BMP280 connections
:widths: auto
:header-rows: 1
* - BMP280
- ESP32-C3-Zero Pin
* - VCC
- 3V3 OUT (Pin 3)
* - GND
- GND (Pin 2)
* - SCL
- GPIO8 (SCL) (Pin 12)
* - SDA
- GPIO9 (SDA) (Pin 13)
.. code-block:: console
nsh> bmp280
Absolute pressure [hPa] = 1003.359985
Temperature [C] = 18.969999
**sensortest**
You can check that the Bosch BMP280 sensor over I2C is working by using the ``sensortest`` application:
.. code-block:: console
nsh> sensortest -n 10 baro0
SensorTest: Test /dev/uorb/sensor_baro0 with interval(1000000us), latency(0us)
baro0: timestamp:3449690000 value1:1023.23 value2:19.75
baro0: timestamp:3449690000 value1:1023.23 value2:19.75
baro0: timestamp:3449690000 value1:1023.23 value2:19.75
baro0: timestamp:3449690000 value1:1023.23 value2:19.75
baro0: timestamp:3449690000 value1:1023.23 value2:19.75
baro0: timestamp:3449700000 value1:1023.23 value2:19.75
baro0: timestamp:3449700000 value1:1023.23 value2:19.75
baro0: timestamp:3449710000 value1:1022.82 value2:19.86
baro0: timestamp:3449710000 value1:1022.82 value2:19.86
baro0: timestamp:3449720000 value1:1022.82 value2:19.86
SensorTest: Received message: baro0, number:10/10
nsh>
nsh
---
Basic configuration that runs NuttShell (console enabled in UART0, at **115200 bps**).
This configuration is focused on low level, command-line driver testing.
Built-in applications are supported, but none are enabled.
.. tip:: Please refer to :doc:`NuttShell (NSH) </applications/nsh/index>`
for more information.
sta_softap
----------
With this configuration you can run these commands to be able
to connect your smartphone or laptop to your board::
nsh> ifup wlan1
nsh> dhcpd_start wlan1
nsh> wapi psk wlan1 mypasswd 3
nsh> wapi essid wlan1 nuttxap 1
In this case, you are creating the access point ``nuttxapp`` in your board and to
connect to it on your smartphone you will be required to type the password ``mypasswd``
using WPA2.
.. tip:: Please refer to :ref:`ESP32 Wi-Fi SoftAP Mode <esp32_wi-fi_softap>`
for more information.
The ``dhcpd_start`` is necessary to let your board to associate an IP to your smartphone.
usbnsh
------
Basic NuttShell configuration using CDC/ACM serial (console enabled in USB Port, at **115200 bps**).
This is another NSH example. If differs from other ‘nsh’ configurations in that this configurations
uses a USB serial device for console I/O.
wifi
----
Enables Wi-Fi support. You can define your credentials this way::
$ make menuconfig
-> Application Configuration
-> Network Utilities
-> Network initialization (NETUTILS_NETINIT [=y])
-> WAPI Configuration
Or if you don't want to keep it saved in the firmware you can do it
at runtime::
nsh> wapi psk wlan0 mypasswd 3
nsh> wapi essid wlan0 myssid 1
nsh> renew wlan0
.. tip:: Please refer to :ref:`ESP32 Wi-Fi Station Mode <esp32_wi-fi_sta>`
for more information.
boards/Kconfig
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@@ -438,6 +438,15 @@ config ARCH_BOARD_ESP32C3_XIAO
The XIAO-ESP32C3 from Seeed Studio features the ESP32-C3 CPU with a RISC-V core, The XIAO-ESP32C3 from Seeed Studio features the ESP32-C3 CPU with a RISC-V core,
supporting IEEE 802.11 b/g/n WiFi, and Bluetooth 5 (BLE) protocols. supporting IEEE 802.11 b/g/n WiFi, and Bluetooth 5 (BLE) protocols.
config ARCH_BOARD_ESP32_C3_ZERO
bool "Waveshare ESP32-C3-Zero"
depends on ARCH_CHIP_ESP32C3
select ARCH_HAVE_BUTTONS
select ARCH_HAVE_IRQBUTTONS
---help---
The ESP32-C3-Zero from Waveshare features the ESP32-C3 CPU with a RISC-V core,
supporting IEEE 802.11 b/g/n WiFi, and Bluetooth 5 (BLE) protocols.
config ARCH_BOARD_ESP32S2_KALUGA_1 config ARCH_BOARD_ESP32S2_KALUGA_1
bool "Espressif ESP32-S2-Kaluga-1 V1.3" bool "Espressif ESP32-S2-Kaluga-1 V1.3"
depends on ARCH_CHIP_ESP32S2WROVER depends on ARCH_CHIP_ESP32S2WROVER
@@ -3537,6 +3546,7 @@ config ARCH_BOARD
default "esp32c3-legacy-devkit-rust-1" if ARCH_BOARD_ESP32C3_LEGACY_DEVKIT_RUST1 default "esp32c3-legacy-devkit-rust-1" if ARCH_BOARD_ESP32C3_LEGACY_DEVKIT_RUST1
default "esp32c3-legacy-devkit" if ARCH_BOARD_ESP32C3_LEGACY_DEVKIT default "esp32c3-legacy-devkit" if ARCH_BOARD_ESP32C3_LEGACY_DEVKIT
default "esp32c3-xiao" if ARCH_BOARD_ESP32C3_XIAO default "esp32c3-xiao" if ARCH_BOARD_ESP32C3_XIAO
default "esp32-c3-zero" if ARCH_BOARD_ESP32_C3_ZERO
default "esp32s2-kaluga-1" if ARCH_BOARD_ESP32S2_KALUGA_1 default "esp32s2-kaluga-1" if ARCH_BOARD_ESP32S2_KALUGA_1
default "esp32s2-saola-1" if ARCH_BOARD_ESP32S2_SAOLA_1 default "esp32s2-saola-1" if ARCH_BOARD_ESP32S2_SAOLA_1
default "franzininho-wifi" if ARCH_BOARD_FRANZININHO_WIFI default "franzininho-wifi" if ARCH_BOARD_FRANZININHO_WIFI
@@ -4793,6 +4803,9 @@ endif
if ARCH_BOARD_ESP32C3_XIAO if ARCH_BOARD_ESP32C3_XIAO
source "boards/risc-v/esp32c3/esp32c3-xiao/Kconfig" source "boards/risc-v/esp32c3/esp32c3-xiao/Kconfig"
endif endif
if ARCH_BOARD_ESP32_C3_ZERO
source "boards/risc-v/esp32c3/esp32-c3-zero/Kconfig"
endif
if ARCH_BOARD_ESP32S2_KALUGA_1 if ARCH_BOARD_ESP32S2_KALUGA_1
source "boards/xtensa/esp32s2/esp32s2-kaluga-1/Kconfig" source "boards/xtensa/esp32s2/esp32s2-kaluga-1/Kconfig"
endif endif
boards/risc-v/esp32c3/common/include/esp_board_bmp280.h
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/****************************************************************************
* boards/risc-v/esp32c3/common/include/esp_board_bmp280.h
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_RISCV_ESP32C3_COMMON_INCLUDE_ESP_BOARD_BMP280_H
#define __BOARDS_RISCV_ESP32C3_COMMON_INCLUDE_ESP_BOARD_BMP280_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: board_bmp280_initialize
*
* Description:
* Initialize and register the BMP280 Pressure Sensor driver.
*
* Input Parameters:
* devno - The device number, used to build the device path as /dev/pressN
*
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_SENSORS_BMP280
int board_bmp280_initialize(int devno);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_RISCV_ESP32C3_COMMON_INCLUDE_ESP_BOARD_BMP280_H */
boards/risc-v/esp32c3/common/src/Make.defs
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@@ -70,6 +70,10 @@ ifeq ($(CONFIG_SENSORS_BMP180),y)
CSRCS += esp_board_bmp180.c CSRCS += esp_board_bmp180.c
endif endif
ifeq ($(CONFIG_SENSORS_BMP280),y)
CSRCS += esp_board_bmp280.c
endif
ifeq ($(CONFIG_MMCSD_SPI),y) ifeq ($(CONFIG_MMCSD_SPI),y)
CSRCS += esp_board_mmcsd.c CSRCS += esp_board_mmcsd.c
endif endif
boards/risc-v/esp32c3/common/src/esp_board_bmp280.c
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/****************************************************************************
* boards/risc-v/esp32c3/common/src/esp_board_bmp280.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/sensors/bmp280.h>
#include <nuttx/i2c/i2c_master.h>
#ifndef CONFIG_ESPRESSIF_I2C_BITBANG
#include "espressif/esp_i2c.h"
#else
#include "espressif/esp_i2c_bitbang.h"
#endif
#include "esp_board_bmp280.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_bmp280_initialize
*
* Description:
* Initialize and register the BMP280 Pressure Sensor driver.
*
* Input Parameters:
* devno - The device number, used to build the device path as /dev/pressN
*
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
int board_bmp280_initialize(int devno)
{
struct i2c_master_s *i2c;
int ret;
sninfo("Initializing BMP280!\n");
/* Initialize I2C */
#ifndef CONFIG_ESPRESSIF_I2C_BITBANG
i2c = esp_i2cbus_initialize(ESPRESSIF_I2C0);
#else
i2c = esp_i2cbus_bitbang_initialize();
#endif
if (i2c)
{
/* Then try to register the barometer sensor in I2C0 */
ret = bmp280_register(devno, i2c);
if (ret < 0)
{
snerr("ERROR: Error registering BMP280 in I2C0\n");
}
}
else
{
ret = -ENODEV;
}
return ret;
}
boards/risc-v/esp32c3/esp32-c3-zero/Kconfig
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@@ -0,0 +1,8 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_BOARD_ESP32_C3_ZERO
endif # ARCH_BOARD_ESP32_C3_ZERO
boards/risc-v/esp32c3/esp32-c3-zero/configs/jumbo/defconfig
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@@ -0,0 +1,61 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32-c3-zero"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32_C3_ZERO=y
CONFIG_ARCH_CHIP="esp32c3"
CONFIG_ARCH_CHIP_ESP32C3=y
CONFIG_ARCH_INTERRUPTSTACK=1536
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARDCTL_RESET=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_ESPRESSIF_GPIO_IRQ=y
CONFIG_ESPRESSIF_I2C_BITBANG=y
CONFIG_ESPRESSIF_I2C_BITBANG_SCLPIN=9
CONFIG_ESPRESSIF_I2C_BITBANG_SDAPIN=8
CONFIG_ESPRESSIF_SPI_BITBANG=y
CONFIG_ESPRESSIF_SPI_BITBANG_CLKPIN=4
CONFIG_ESPRESSIF_SPI_BITBANG_CSPIN=7
CONFIG_ESPRESSIF_SPI_BITBANG_MISOPIN=5
CONFIG_ESPRESSIF_SPI_BITBANG_MOSIPIN=6
CONFIG_EXAMPLES_BMP280=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_FLOATINGPOINT=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_WAITPID=y
CONFIG_SENSORS=y
CONFIG_SENSORS_BMP280=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=11
CONFIG_START_YEAR=2019
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_I2CTOOL=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_SENSORTEST=y
CONFIG_SYSTEM_SPITOOL=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART0_SERIAL_CONSOLE=y
boards/risc-v/esp32c3/esp32-c3-zero/configs/nsh/defconfig
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@@ -0,0 +1,45 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32-c3-zero"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32_C3_ZERO=y
CONFIG_ARCH_CHIP="esp32c3"
CONFIG_ARCH_CHIP_ESP32C3=y
CONFIG_ARCH_INTERRUPTSTACK=1536
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARDCTL_RESET=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=11
CONFIG_START_YEAR=2019
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART0_SERIAL_CONSOLE=y
boards/risc-v/esp32c3/esp32-c3-zero/configs/sta_softap/defconfig
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@@ -0,0 +1,83 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NDEBUG is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ALLOW_BSD_COMPONENTS=y
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32-c3-zero"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32_C3_ZERO=y
CONFIG_ARCH_CHIP="esp32c3"
CONFIG_ARCH_CHIP_ESP32C3=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARDCTL_RESET=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_DRIVERS_IEEE80211=y
CONFIG_DRIVERS_WIRELESS=y
CONFIG_ESPRESSIF_SPIFLASH=y
CONFIG_ESPRESSIF_SPIFLASH_SPIFFS=y
CONFIG_ESPRESSIF_WIFI=y
CONFIG_ESPRESSIF_WIFI_STATION_SOFTAP=y
CONFIG_EXAMPLES_DHCPD=y
CONFIG_EXAMPLES_RANDOM=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INIT_STACKSIZE=8192
CONFIG_INTELHEX_BINARY=y
CONFIG_IOB_BUFSIZE=128
CONFIG_IOB_NBUFFERS=160
CONFIG_IOB_THROTTLE=24
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NETDEV_WIRELESS_IOCTL=y
CONFIG_NETUTILS_CJSON=y
CONFIG_NETUTILS_DHCPD=y
CONFIG_NETUTILS_IPERF=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_ETH_PKTSIZE=1514
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_DELAYED_ACK=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_UDP=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_LPWORK=y
CONFIG_SCHED_WAITPID=y
CONFIG_SIG_DEFAULT=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=11
CONFIG_START_YEAR=2019
CONFIG_SYSTEM_DHCPC_RENEW=y
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_PING=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_TLS_TASK_NELEM=4
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_WAPI=y
CONFIG_WIRELESS_WAPI_CMDTOOL=y
CONFIG_WIRELESS_WAPI_INITCONF=y
boards/risc-v/esp32c3/esp32-c3-zero/configs/usbnsh/defconfig
+45
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@@ -0,0 +1,45 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_ESPRESSIF_UART0 is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32-c3-zero"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32_C3_ZERO=y
CONFIG_ARCH_CHIP="esp32c3"
CONFIG_ARCH_CHIP_ESP32C3=y
CONFIG_ARCH_INTERRUPTSTACK=1536
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARDCTL_RESET=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_ESPRESSIF_USBSERIAL=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=11
CONFIG_START_YEAR=2019
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
boards/risc-v/esp32c3/esp32-c3-zero/configs/wifi/defconfig
+79
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@@ -0,0 +1,79 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NDEBUG is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ALLOW_BSD_COMPONENTS=y
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32-c3-zero"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32_C3_ZERO=y
CONFIG_ARCH_CHIP="esp32c3"
CONFIG_ARCH_CHIP_ESP32C3=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_DRIVERS_IEEE80211=y
CONFIG_DRIVERS_WIRELESS=y
CONFIG_ESPRESSIF_SPIFLASH=y
CONFIG_ESPRESSIF_SPIFLASH_SPIFFS=y
CONFIG_ESPRESSIF_WIFI=y
CONFIG_EXAMPLES_RANDOM=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INIT_STACKSIZE=8192
CONFIG_INTELHEX_BINARY=y
CONFIG_IOB_BUFSIZE=128
CONFIG_IOB_NBUFFERS=160
CONFIG_IOB_THROTTLE=24
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NETDEV_WIRELESS_IOCTL=y
CONFIG_NETUTILS_CJSON=y
CONFIG_NETUTILS_IPERF=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_ETH_PKTSIZE=1514
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_DELAYED_ACK=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_UDP=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_LPWORK=y
CONFIG_SCHED_WAITPID=y
CONFIG_SIG_DEFAULT=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=11
CONFIG_START_YEAR=2019
CONFIG_SYSTEM_DHCPC_RENEW=y
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_PING=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_TLS_TASK_NELEM=4
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_WAPI=y
CONFIG_WIRELESS_WAPI_CMDTOOL=y
CONFIG_WIRELESS_WAPI_INITCONF=y
boards/risc-v/esp32c3/esp32-c3-zero/include/board.h
+41
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@@ -0,0 +1,41 @@
/****************************************************************************
* boards/risc-v/esp32c3/esp32-c3-zero/include/board.h
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_RISCV_ESP32C3_ESP32_C3_ZERO_INCLUDE_BOARD_H
#define __BOARDS_RISCV_ESP32C3_ESP32_C3_ZERO_INCLUDE_BOARD_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* GPIO pins used by the GPIO Subsystem */
#define BOARD_NGPIOOUT 2 /* Amount of GPIO Output pins */
#define BOARD_NGPIOINT 1 /* Amount of GPIO Input w/ Interruption pins */
/* esp32-c3-zero GPIOs */
/* BOOT Button */
#define BUTTON_BOOT 9
#endif /* __BOARDS_RISCV_ESP32C3_ESP32_C3_ZERO_INCLUDE_BOARD_H */
boards/risc-v/esp32c3/esp32-c3-zero/scripts/Make.defs
+61
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@@ -0,0 +1,61 @@
############################################################################
# boards/risc-v/esp32c3/esp32-c3-zero/scripts/Make.defs
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
###########################################################################
include $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
include $(TOPDIR)/tools/espressif/Config.mk
include $(TOPDIR)/arch/risc-v/src/common/Toolchain.defs
# Remove quotes from CONFIG_ESPRESSIF_CHIP_SERIES configuration
CHIP_SERIES = $(patsubst "%",%,$(CONFIG_ESPRESSIF_CHIP_SERIES))
# Pick the linker scripts from the board level if they exist, if not
# pick the common linker scripts.
ARCHSCRIPT += $(BOARD_COMMON_DIR)/scripts/$(CHIP_SERIES)_aliases.ld
ARCHSCRIPT += $(call FINDSCRIPT,$(CHIP_SERIES)_flat_memory.ld)
ifeq ($(CONFIG_ESPRESSIF_BOOTLOADER_MCUBOOT),y)
ARCHSCRIPT += $(call FINDSCRIPT,$(CHIP_SERIES)_sections.ld)
else ifeq ($(CONFIG_ESPRESSIF_SIMPLE_BOOT),y)
ARCHSCRIPT += $(call FINDSCRIPT,$(CHIP_SERIES)_sections.ld)
else
ARCHSCRIPT += $(call FINDSCRIPT,$(CHIP_SERIES)_legacy_sections.ld)
endif
ARCHPICFLAGS = -fpic
CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -Werror=return-type
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
AFLAGS := $(CFLAGS) -D__ASSEMBLY__
# Loadable module definitions
LDMODULEFLAGS += -melf32lriscv
# ELF module definitions
LDELFFLAGS += -melf32lriscv
boards/risc-v/esp32c3/esp32-c3-zero/src/Make.defs
+45
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@@ -0,0 +1,45 @@
#############################################################################
# boards/risc-v/esp32c3/esp32-c3-zero/src/Make.defs
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
#############################################################################
include $(TOPDIR)/Make.defs
CSRCS = esp32c3_boot.c esp32c3_bringup.c
ifeq ($(CONFIG_BOARDCTL),y)
CSRCS += esp32c3_appinit.c
ifeq ($(CONFIG_BOARDCTL_RESET),y)
CSRCS += esp32c3_reset.c
endif
endif
ifeq ($(CONFIG_DEV_GPIO),y)
CSRCS += esp32c3_gpio.c
endif
ifeq ($(CONFIG_ARCH_BUTTONS),y)
CSRCS += esp32c3_buttons.c
endif
DEPPATH += --dep-path board
VPATH += :board
CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board
boards/risc-v/esp32c3/esp32-c3-zero/src/esp32-c3-zero.h
+121
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@@ -0,0 +1,121 @@
/****************************************************************************
* boards/risc-v/esp32c3/esp32-c3-zero/src/esp32-c3-zero.h
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_RISCV_ESP32C3_ESP32_C3_ZERO_SRC_ESP32_C3_ZERO_H
#define __BOARDS_RISCV_ESP32C3_ESP32_C3_ZERO_SRC_ESP32_C3_ZERO_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* RMT gpio */
#define RMT_RXCHANNEL 2
#define RMT_TXCHANNEL 0
#ifdef CONFIG_RMT_LOOP_TEST_MODE
# define RMT_INPUT_PIN 0
# define RMT_OUTPUT_PIN 0
#else
# define RMT_INPUT_PIN 2
# define RMT_OUTPUT_PIN 10
#endif
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: esp_bringup
*
* Description:
* Perform architecture-specific initialization.
*
* CONFIG_BOARD_LATE_INITIALIZE=y :
* Called from board_late_initialize().
*
* CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_BOARDCTL=y :
* Called from the NSH library via board_app_initialize().
*
* Input Parameters:
* None.
*
* Returned Value:
* Zero (OK) is returned on success; A negated errno value is returned on
* any failure.
*
****************************************************************************/
int esp_bringup(void);
/****************************************************************************
* Name: board_twai_setup
*
* Description:
* Initialize TWAI and register the TWAI device
*
* Input Parameters:
* None
*
* Returned Value:
* Zero (OK) is returned on success; A negated errno value is returned on
* any failure.
*
****************************************************************************/
#ifdef CONFIG_ESPRESSIF_TWAI
int board_twai_setup(void);
#endif
/****************************************************************************
* Name: esp_gpio_init
*
* Description:
* Configure the GPIO driver.
*
* Returned Value:
* Zero (OK).
*
****************************************************************************/
#ifdef CONFIG_DEV_GPIO
int esp_gpio_init(void);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_RISCV_ESP32C3_ESP32_C3_ZERO_SRC_ESP32_C3_ZERO_H */
boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_appinit.c
+83
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@@ -0,0 +1,83 @@
/****************************************************************************
* boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_appinit.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <nuttx/board.h>
#include "esp32-c3-zero.h"
#ifdef CONFIG_BOARDCTL
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initialization logic and the
* matching application logic. The value could be such things as a
* mode enumeration value, a set of DIP switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
#ifdef CONFIG_BOARD_LATE_INITIALIZE
/* Board initialization already performed by board_late_initialize() */
return OK;
#else
/* Perform board-specific initialization */
return esp_bringup();
#endif
}
#endif /* CONFIG_BOARDCTL */
boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_boot.c
+89
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@@ -0,0 +1,89 @@
/****************************************************************************
* boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_boot.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp_board_initialize
*
* Description:
* All Espressif boards must provide the following entry point.
* This entry point is called early in the initialization -- after all
* memory has been configured and mapped but before any devices have been
* initialized.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
void esp_board_initialize(void)
{
}
/****************************************************************************
* Name: board_late_initialize
*
* Description:
* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_late_initialize(). board_late_initialize() will
* be called immediately after up_initialize() is called and just before
* the initial application is started. This additional initialization
* phase may be used, for example, to initialize board-specific device
* drivers.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_BOARD_LATE_INITIALIZE
void board_late_initialize(void)
{
/* Perform board-specific initialization */
esp_bringup();
}
#endif
boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_bringup.c
+492
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@@ -0,0 +1,492 @@
/****************************************************************************
* boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_bringup.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <fcntl.h>
#include <syslog.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <nuttx/fs/fs.h>
#include "esp_board_ledc.h"
#ifdef CONFIG_ESPRESSIF_ADC
# include "esp_board_adc.h"
#endif
#ifdef CONFIG_WATCHDOG
# include "espressif/esp_wdt.h"
#endif
#ifdef CONFIG_ESPRESSIF_SPIFLASH
# include "esp_board_spiflash.h"
#endif
#ifdef CONFIG_TIMER
# include "espressif/esp_timer.h"
#endif
#ifdef CONFIG_ONESHOT
# include "espressif/esp_oneshot.h"
#endif
#ifdef CONFIG_RTC_DRIVER
# include "espressif/esp_rtc.h"
#endif
#ifdef CONFIG_DEV_GPIO
# include "espressif/esp_gpio.h"
#endif
#ifdef CONFIG_INPUT_BUTTONS
# include <nuttx/input/buttons.h>
#endif
#ifdef CONFIG_ESPRESSIF_EFUSE
# include "espressif/esp_efuse.h"
#endif
#ifdef CONFIG_ESP_RMT
# include "esp_board_rmt.h"
#endif
#ifdef CONFIG_ESPRESSIF_I2C
# include "esp_board_i2c.h"
#endif
#ifdef CONFIG_ESPRESSIF_I2S
# include "esp_board_i2s.h"
#endif
#ifdef CONFIG_ESPRESSIF_SPI
# include "espressif/esp_spi.h"
# include "esp_board_spidev.h"
# ifdef CONFIG_ESPRESSIF_SPI_BITBANG
# include "espressif/esp_spi_bitbang.h"
# endif
#endif
#ifdef CONFIG_ESPRESSIF_TEMP
# include "espressif/esp_temperature_sensor.h"
#endif
#ifdef CONFIG_ESPRESSIF_WIFI_BT_COEXIST
# include "private/esp_coexist_internal.h"
#endif
#ifdef CONFIG_ESPRESSIF_WIFI
# include "esp_board_wlan.h"
#endif
#ifdef CONFIG_ESPRESSIF_BLE
# include "esp_ble.h"
#endif
#ifdef CONFIG_SPI_SLAVE
# include "espressif/esp_spi.h"
# include "esp_board_spislavedev.h"
#endif
#ifdef CONFIG_SYSTEM_NXDIAG_ESPRESSIF_CHIP_WO_TOOL
# include "espressif/esp_nxdiag.h"
#endif
#ifdef CONFIG_ESP_SDM
# include "espressif/esp_sdm.h"
#endif
#ifdef CONFIG_ESPRESSIF_SHA_ACCELERATOR
# include "espressif/esp_sha.h"
#endif
#ifdef CONFIG_MMCSD_SPI
# include "esp_board_mmcsd.h"
#endif
#ifdef CONFIG_SENSORS_BMP180
# include "esp_board_bmp180.h"
#endif
#ifdef CONFIG_SENSORS_BMP280
# include "esp_board_bmp280.h"
#endif
#include "esp32-c3-zero.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp_bringup
*
* Description:
* Perform architecture-specific initialization.
*
* CONFIG_BOARD_LATE_INITIALIZE=y :
* Called from board_late_initialize().
*
* CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_BOARDCTL=y :
* Called from the NSH library via board_app_initialize().
*
* Input Parameters:
* None.
*
* Returned Value:
* Zero (OK) is returned on success; A negated errno value is returned on
* any failure.
*
****************************************************************************/
int esp_bringup(void)
{
int ret = OK;
#ifdef CONFIG_FS_PROCFS
/* Mount the procfs file system */
ret = nx_mount(NULL, "/proc", "procfs", 0, NULL);
if (ret < 0)
{
_err("Failed to mount procfs at /proc: %d\n", ret);
}
#endif
#ifdef CONFIG_FS_TMPFS
/* Mount the tmpfs file system */
ret = nx_mount(NULL, CONFIG_LIBC_TMPDIR, "tmpfs", 0, NULL);
if (ret < 0)
{
_err("Failed to mount tmpfs at %s: %d\n", CONFIG_LIBC_TMPDIR, ret);
}
#endif
#if defined(CONFIG_ESPRESSIF_EFUSE)
ret = esp_efuse_initialize("/dev/efuse");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);
}
#endif
#if defined(CONFIG_ESPRESSIF_SHA_ACCELERATOR) && \
!defined(CONFIG_CRYPTO_CRYPTODEV_HARDWARE)
ret = esp_sha_init();
if (ret < 0)
{
syslog(LOG_ERR,
"ERROR: Failed to initialize SHA: %d\n", ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_MWDT0
ret = esp_wdt_initialize("/dev/watchdog0", ESP_WDT_MWDT0);
if (ret < 0)
{
_err("Failed to initialize WDT: %d\n", ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_MWDT1
ret = esp_wdt_initialize("/dev/watchdog1", ESP_WDT_MWDT1);
if (ret < 0)
{
_err("Failed to initialize WDT: %d\n", ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_RWDT
ret = esp_wdt_initialize("/dev/watchdog2", ESP_WDT_RWDT);
if (ret < 0)
{
_err("Failed to initialize WDT: %d\n", ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_XTWDT
ret = esp_wdt_initialize("/dev/watchdog3", ESP_WDT_XTAL32K);
if (ret < 0)
{
_err("Failed to initialize WDT: %d\n", ret);
}
#endif
#ifdef CONFIG_TIMER
ret = esp_timer_initialize(0);
if (ret < 0)
{
_err("Failed to initialize Timer 0: %d\n", ret);
}
#ifndef CONFIG_ONESHOT
ret = esp_timer_initialize(1);
if (ret < 0)
{
_err("Failed to initialize Timer 1: %d\n", ret);
}
#endif
#endif
#ifdef CONFIG_ESPRESSIF_SPI
# ifdef CONFIG_ESPRESSIF_SPI2
ret = board_spidev_initialize(ESPRESSIF_SPI2);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init spidev 2: %d\n", ret);
}
# endif /* CONFIG_ESPRESSIF_SPI2 */
# ifdef CONFIG_ESPRESSIF_SPI_BITBANG
ret = board_spidev_initialize(ESPRESSIF_SPI_BITBANG);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init spidev 3: %d\n", ret);
}
# endif /* CONFIG_ESPRESSIF_SPI_BITBANG */
#endif /* CONFIG_ESPRESSIF_SPI */
#if defined(CONFIG_ESPRESSIF_SPI) && defined(CONFIG_MMCSD_SPI)
ret = esp_mmcsd_spi_initialize();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: failed to init MMCSD SPI\n");
}
#endif
#ifdef CONFIG_ESPRESSIF_SPIFLASH
ret = board_spiflash_init();
if (ret)
{
syslog(LOG_ERR, "ERROR: Failed to initialize SPI Flash\n");
}
#endif
#ifdef CONFIG_ESPRESSIF_TEMP
struct esp_temp_sensor_config_t cfg = TEMPERATURE_SENSOR_CONFIG(10, 50);
ret = esp_temperature_sensor_initialize(cfg);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize temperature sensor driver: %d\n",
ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_WIFI_BT_COEXIST
esp_coex_adapter_register(&g_coex_adapter_funcs);
coex_pre_init();
#endif
#ifdef CONFIG_ESPRESSIF_WIFI
ret = board_wlan_init();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to initialize wireless subsystem=%d\n",
ret);
}
#endif
#ifdef CONFIG_RTC_DRIVER
/* Initialize the RTC driver */
ret = esp_rtc_driverinit();
if (ret < 0)
{
_err("Failed to initialize the RTC driver: %d\n", ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_BLE
ret = esp_ble_initialize();
if (ret)
{
syslog(LOG_ERR, "ERROR: Failed to initialize BLE\n");
return ret;
}
#endif
#if defined(CONFIG_SPI_SLAVE) && defined(CONFIG_ESPRESSIF_SPI2)
ret = board_spislavedev_initialize(ESPRESSIF_SPI2);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize SPI%d Slave driver: %d\n",
ESPRESSIF_SPI2, ret);
}
#endif
#ifdef CONFIG_ONESHOT
ret = esp_oneshot_initialize();
if (ret < 0)
{
_err("Failed to initialize Oneshot Timer: %d\n", ret);
}
#endif
#ifdef CONFIG_ESP_RMT
ret = board_rmt_txinitialize(RMT_TXCHANNEL, RMT_OUTPUT_PIN);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: board_rmt_txinitialize() failed: %d\n", ret);
}
ret = board_rmt_rxinitialize(RMT_RXCHANNEL, RMT_INPUT_PIN);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: board_rmt_txinitialize() failed: %d\n", ret);
}
#endif
#if defined(CONFIG_ESPRESSIF_I2S)
/* Configure I2S peripheral interfaces */
ret = board_i2s_init();
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize I2S driver: %d\n", ret);
}
#endif
#if defined(CONFIG_ESPRESSIF_I2C)
/* Configure I2C peripheral interfaces */
ret = board_i2c_init();
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize I2C driver: %d\n", ret);
}
#endif
#ifdef CONFIG_SENSORS_BMP180
/* Try to register BMP180 device in I2C0 */
ret = board_bmp180_initialize(0);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize BMP180 "
"Driver for I2C0: %d\n", ret);
}
#endif
#ifdef CONFIG_SENSORS_BMP280
/* Try to register BMP280 device in I2C0 */
ret = board_bmp280_initialize(0);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize BMP280 "
"Driver for I2C0: %d\n", ret);
}
#endif
#ifdef CONFIG_ESP_SDM
struct esp_sdm_chan_config_s config =
{
.gpio_num = 5,
.sample_rate_hz = 1000 * 1000,
.flags = 0,
};
struct dac_dev_s *dev = esp_sdminitialize(config);
ret = dac_register("/dev/dac0", dev);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize DAC driver: %d\n",
ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_TWAI
/* Initialize TWAI and register the TWAI driver. */
ret = board_twai_setup();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: board_twai_setup failed: %d\n", ret);
}
#endif
#ifdef CONFIG_DEV_GPIO
ret = esp_gpio_init();
if (ret < 0)
{
ierr("Failed to initialize GPIO Driver: %d\n", ret);
}
#endif
#if defined(CONFIG_INPUT_BUTTONS) && defined(CONFIG_INPUT_BUTTONS_LOWER)
/* Register the BUTTON driver */
ret = btn_lower_initialize("/dev/buttons");
if (ret < 0)
{
ierr("ERROR: btn_lower_initialize() failed: %d\n", ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_LEDC
ret = board_ledc_setup();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: board_ledc_setup() failed: %d\n", ret);
}
#endif /* CONFIG_ESPRESSIF_LEDC */
#ifdef CONFIG_SYSTEM_NXDIAG_ESPRESSIF_CHIP_WO_TOOL
ret = esp_nxdiag_initialize();
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: esp_nxdiag_initialize failed: %d\n", ret);
}
#endif
#ifdef CONFIG_ESPRESSIF_ADC
ret = board_adc_init();
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize ADC driver: %d\n", ret);
}
#endif
/* If we got here then perhaps not all initialization was successful, but
* at least enough succeeded to bring-up NSH with perhaps reduced
* capabilities.
*/
return ret;
}
boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_buttons.c
+200
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@@ -0,0 +1,200 @@
/****************************************************************************
* boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_buttons.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
/* Config */
#include <nuttx/config.h>
/* Libc */
#include <assert.h>
#include <debug.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
/* NuttX */
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <nuttx/irq.h>
#include <arch/irq.h>
/* Arch */
#include "espressif/esp_gpio.h"
/* Board */
#include "esp32-c3-zero.h"
#include <arch/board/board.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_button_initialize
*
* Description:
* board_button_initialize() must be called to initialize button resources.
* After that, board_buttons() may be called to collect the current state
* of all buttons or board_button_irq() may be called to register button
* interrupt handlers.
*
* Input Parameters:
* None.
*
* Returned Value:
* The number of buttons that were initialized.
*
****************************************************************************/
uint32_t board_button_initialize(void)
{
esp_configgpio(BUTTON_BOOT, INPUT_FUNCTION_2 | PULLUP);
return 1;
}
/****************************************************************************
* Name: board_buttons
*
* Description:
* After board_button_initialize() has been called, board_buttons() may be
* called to collect the state of all buttons.
*
* Input Parameters:
* None.
*
* Returned Value:
* An 8-bit bit set with each bit associated with a button. See the
* BUTTON_*_BIT definitions in board.h for the meaning of each bit.
*
****************************************************************************/
uint32_t board_buttons(void)
{
uint8_t ret = 0;
int i = 0;
int n = 0;
bool b0 = esp_gpioread(BUTTON_BOOT);
for (i = 0; i < 10; i++)
{
up_mdelay(1); /* TODO */
bool b1 = esp_gpioread(BUTTON_BOOT);
if (b0 == b1)
{
n++;
}
else
{
n = 0;
}
if (3 == n)
{
break;
}
b0 = b1;
}
iinfo("b=%d n=%d\n", b0, n);
/* Low value means that the button is pressed */
if (!b0)
{
ret = 0x1;
}
return ret;
}
/****************************************************************************
* Name: board_button_irq
*
* Description:
* board_button_irq() may be called to register an interrupt handler that
* will be called when a button is depressed or released. The ID value is
* a button enumeration value that uniquely identifies a button resource.
* See the BUTTON_* definitions in board.h for the meaning of enumeration
* value.
*
* Input Parameters:
* id - Identifies the button to be monitored. It is equivalent to
* the bit used to report the button state in the return value
* from board_buttons().
* irqhandler - The handler that will be invoked when the interrupt occurs.
* arg - Pointer to the arguments that will be provided to the
* interrupt handler.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_ARCH_IRQBUTTONS
int board_button_irq(int id, xcpt_t irqhandler, void *arg)
{
int ret;
DEBUGASSERT(id == 0);
int irq = ESP_PIN2IRQ(BUTTON_BOOT);
if (NULL != irqhandler)
{
/* Make sure the interrupt is disabled */
esp_gpioirqdisable(irq);
gpioinfo("Attach %p\n", irqhandler);
ret = irq_attach(irq, irqhandler, arg);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: irq_attach() failed: %d\n", ret);
return ret;
}
/* Configure the interrupt for rising and falling edges */
gpioinfo("Enabling the interrupt\n");
esp_gpioirqenable(irq, CHANGE);
}
else
{
gpioinfo("Disable the interrupt\n");
esp_gpioirqdisable(irq);
}
return OK;
}
#endif
boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_gpio.c
+558
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boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_reset.c
+83
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@@ -0,0 +1,83 @@
/****************************************************************************
* boards/risc-v/esp32c3/esp32-c3-zero/src/esp32c3_reset.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <assert.h>
#include <debug.h>
#include <stdlib.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include "espressif/esp_systemreset.h"
#ifdef CONFIG_BOARDCTL_RESET
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_reset
*
* Description:
* Reset board. Support for this function is required by board-level
* logic if CONFIG_BOARDCTL_RESET is selected.
*
* Input Parameters:
* status - Status information provided with the reset event. This
* meaning of this status information is board-specific. If not
* used by a board, the value zero may be provided in calls to
* board_reset().
*
* Returned Value:
* If this function returns, then it was not possible to power-off the
* board due to some constraints. The return value in this case is a
* board-specific reason for the failure to shutdown.
*
****************************************************************************/
int board_reset(int status)
{
syslog(LOG_INFO, "reboot status=%d\n", status);
switch (status)
{
case EXIT_SUCCESS:
up_shutdown_handler();
break;
case CONFIG_BOARD_ASSERT_RESET_VALUE:
default:
break;
}
up_systemreset();
return 0;
}
#endif /* CONFIG_BOARDCTL_RESET */