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https://github.com/apache/nuttx.git
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boards/arm/stm32/stm32f4discovery/: Add board support to external LoRa NiceRF module
This commit is contained in:
Alan Carvalho de Assis
committed by
Gregory Nutt
Gregory Nutt
parent
6309165fe0
commit
29f480f57f
@@ -41,6 +41,7 @@ Contents
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- RTC DS1307
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- SSD1289
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- UG-2864AMBAG01 / UG-2864HSWEG01
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- NiceRF LoRa (2AD66-LoRa V2)
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- HCI UART
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- STM32F4Discovery-specific Configuration Options
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- BASIC
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@@ -642,6 +643,15 @@ Darcy Gong recently added support for the UG-2864HSWEG01 OLED which is also
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an option with this configuration. I have little technical information about
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the UG-2864HSWEG01 interface (see boards/arm/stm32/stm32f4discovery/src/up_ug2864hsweg01.c).
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NiceRF LoRa (2AD66-LoRa V2)
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===========================
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It is possible to wire an external LoRa module to STM32F4Discovery board.
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First connect the GND and VCC (to 3.3V) and then connect the SCK label to PA5,
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connnect the MISO to PA6, connect the MOSI to PA7, connect the NSS to PD8,
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connect DIO0 to PD0 and finally connect NRESET to PD4.
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HCI UART
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========
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@@ -81,6 +81,10 @@ ifeq ($(CONFIG_LCD_ST7567),y)
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CSRCS += stm32_st7567.c
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endif
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ifeq ($(CONFIG_LPWAN_SX127X),y)
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CSRCS += stm32_sx127x.c
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endif
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ifeq ($(CONFIG_INPUT_NUNCHUCK),y)
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CSRCS += stm32_nunchuck.c
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endif
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@@ -466,5 +466,13 @@ int stm32_bringup(void)
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}
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#endif
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#ifdef CONFIG_LPWAN_SX127X
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ret = stm32_lpwaninitialize();
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to initialize wireless driver: %d\n", ret);
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}
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#endif /* CONFIG_LPWAN_SX127X */
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return ret;
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}
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@@ -78,6 +78,10 @@ void weak_function stm32_spidev_initialize(void)
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#if defined(CONFIG_LCD_MAX7219) || defined(CONFIG_LEDS_MAX7219)
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stm32_configgpio(GPIO_MAX7219_CS); /* MAX7219 chip select */
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#endif
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#ifdef CONFIG_LPWAN_SX127X
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stm32_configgpio(GPIO_SX127X_CS); /* SX127x chip select*/
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#endif
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#if defined(CONFIG_LCD_ST7567)
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stm32_configgpio(STM32_LCD_CS); /* ST7567 chip select */
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#endif
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@@ -126,6 +130,12 @@ void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
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{
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spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
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#ifdef CONFIG_LPWAN_SX127X
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if (devid == SPIDEV_LPWAN(0))
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{
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stm32_gpiowrite(GPIO_SX127X_CS, !selected);
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}
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#endif
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#ifdef CONFIG_LCD_ST7567
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if (devid == SPIDEV_DISPLAY(0))
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{
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@@ -153,7 +163,16 @@ void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
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uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
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{
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return 0;
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uint8_t status = 0;
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#ifdef CONFIG_LPWAN_SX127X
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if (devid == SPIDEV_LPWAN(0))
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{
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status |= SPI_STATUS_PRESENT;
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}
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#endif
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return status;
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}
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#endif
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@@ -0,0 +1,216 @@
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/****************************************************************************
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* boards/arm/stm32/stm32f4discovery/src/stm32_boot.c
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Authors: Mateusz Szafoni <raiden00@railab.me>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <errno.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include <nuttx/signal.h>
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#include <nuttx/wireless/lpwan/sx127x.h>
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#include <arch/board/board.h>
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#include "stm32_gpio.h"
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#include "stm32_exti.h"
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#include "stm32_spi.h"
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#include "stm32f4discovery.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* SX127X on SPI1 bus */
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#define SX127X_SPI 1
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static void sx127x_chip_reset(void);
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static int sx127x_opmode_change(int opmode);
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static int sx127x_freq_select(uint32_t freq);
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static int sx127x_pa_select(bool enable);
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static int sx127x_irq0_attach(xcpt_t isr, FAR void *arg);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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struct sx127x_lower_s lower =
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{
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.irq0attach = sx127x_irq0_attach,
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.reset = sx127x_chip_reset,
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.opmode_change = sx127x_opmode_change,
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.freq_select = sx127x_freq_select,
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.pa_select = sx127x_pa_select,
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.pa_force = false
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};
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static bool g_high_power_output = false;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sx127x_irq0_attach
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****************************************************************************/
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static int sx127x_irq0_attach(xcpt_t isr, FAR void *arg)
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{
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wlinfo("Attach DIO0 IRQ\n");
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/* IRQ on rising edge */
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stm32_gpiosetevent(GPIO_SX127X_DIO0, true, false, false, isr, arg);
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return OK;
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}
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/****************************************************************************
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* Name: sx127x_chip_reset
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****************************************************************************/
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static void sx127x_chip_reset(void)
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{
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wlinfo("SX127X RESET\n");
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/* Configure reset as output */
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stm32_configgpio(GPIO_SX127X_RESET);
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/* Set pin to zero */
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stm32_gpiowrite(GPIO_SX127X_RESET, false);
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/* Wait 1 ms */
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nxsig_usleep(1000);
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/* Configure reset as input */
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stm32_configgpio(GPIO_SX127X_RESET | GPIO_INPUT | GPIO_FLOAT);
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/* Wait 10 ms */
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nxsig_usleep(10000);
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}
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/****************************************************************************
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* Name: sx127x_opmode_change
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****************************************************************************/
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static int sx127x_opmode_change(int opmode)
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{
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/* Nothing to do */
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return OK;
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}
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/****************************************************************************
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* Name: sx127x_freq_select
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****************************************************************************/
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static int sx127x_freq_select(uint32_t freq)
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{
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int ret = OK;
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/* Only HF supported (BAND3 - 860-930 MHz) */
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if (freq < SX127X_HFBAND_THR)
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{
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ret = -EINVAL;
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wlerr("LF band not supported\n");
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}
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return ret;
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}
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/****************************************************************************
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* Name: sx127x_pa_select
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****************************************************************************/
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static int sx127x_pa_select(bool enable)
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{
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g_high_power_output = enable;
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return OK;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int stm32_lpwaninitialize(void)
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{
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FAR struct spi_dev_s *spidev;
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int ret = OK;
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wlinfo("Register the sx127x module\n");
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/* Setup DIO0 */
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stm32_configgpio(GPIO_SX127X_DIO0);
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/* Init SPI bus */
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spidev = stm32_spibus_initialize(SX127X_SPI);
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if (!spidev)
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{
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wlerr("ERROR: Failed to initialize SPI %d bus\n", SX127X_SPI);
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ret = -ENODEV;
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goto errout;
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}
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/* Initialize SX127X */
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ret = sx127x_register(spidev, &lower);
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if (ret < 0)
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{
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wlerr("ERROR: Failed to register sx127x\n");
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goto errout;
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}
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errout:
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return ret;
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}
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@@ -242,6 +242,13 @@
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#define GPIO_CS43L22_RESET (GPIO_OUTPUT|GPIO_SPEED_50MHz|GPIO_PORTD|GPIO_PIN4)
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/* LoRa SX127x */
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#define GPIO_SX127X_DIO0 (GPIO_INPUT|GPIO_FLOAT|GPIO_EXTI|GPIO_PORTD|GPIO_PIN0)
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#define GPIO_SX127X_RESET (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_OUTPUT_CLEAR|\
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GPIO_SPEED_50MHz|GPIO_PORTD|GPIO_PIN4)
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/* PWM
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*
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* The STM32F4 Discovery has no real on-board PWM devices, but the board can be
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@@ -262,6 +269,9 @@
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#define GPIO_MAX6675_CS (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\
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GPIO_OUTPUT_SET|GPIO_PORTD|GPIO_PIN8)
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#define GPIO_SX127X_CS (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\
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GPIO_OUTPUT_SET|GPIO_PORTD|GPIO_PIN8)
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#define GPIO_MAX7219_CS (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\
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GPIO_OUTPUT_SET|GPIO_PORTC|GPIO_PIN3)
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@@ -477,6 +487,17 @@ int stm32_bmp180initialize(FAR const char *devpath);
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int stm32_lis3dshinitialize(FAR const char *devpath);
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#endif
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/*****************************************************************************
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* Name: stm32_lpwaninitialize
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*
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* Description:
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* Initialize SX127X LPWAN interaface.
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****************************************************************************/
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#ifdef CONFIG_LPWAN_SX127X
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int stm32_lpwaninitialize(void);
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#endif
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/****************************************************************************
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* Name: stm32_mmcsdinitialize
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*
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@@ -58,7 +58,7 @@
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#include "sx127x.h"
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/* TODO:
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* - OOK communication (RX+TX) deosnt work yet
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* - OOK communication (RX+TX) doesn't work yet
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* - Channel Activity Detection (CAD) for LORA
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* - frequency hopping for LORA and FSK/OOK
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* - modulation shaping for FSK/OOK
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