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ht32f491x3/esk32: add docs and flash helpers
Document the HT32F491x3 ESK32 board, build steps, flashing flow, and validation commands. Add WSL and PowerShell flash backends plus a Python wrapper. Signed-off-by: Felipe Moura <moura.fmo@gmail.com>
This commit is contained in:
Felipe Moura
Xiang Xiao
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==================
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ESK32 (HT32F49163)
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==================
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.. tags:: arch:arm, chip:ht32f491x3, chip:ht32f49163, vendor:holtek
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The ESK32 is a development board based on the Holtek HT32F49163 MCU.
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The current NuttX port targets the HT32F49163 device used on the
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HT32F49163 development kit and focuses on a working serial-console NSH
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configuration with basic board bring-up.
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For additional hardware details, refer to Holtek's
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`HT32F491x3 Starter Kit User Guide <https://www.holtek.com/webapi/106680/HT32F491x3_StarterKitUserManualv100.pdf>`_.
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.. figure:: ht32f491x3-starter-kit.jpg
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:align: center
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:alt: HT32F491x3 Starter Kit
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HT32F491x3 Starter Kit board photo
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Features
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========
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The current port provides:
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* Holtek HT32F49163 MCU from the HT32F491x3 family
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* ARM Cortex-M4 core with FPU support
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* Boot and clock initialization for the ESK32 8 MHz external crystal
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* System clock configured to 150 MHz
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* USART1 serial console at 115200 8N1
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* ``/bin`` mounted through ``binfs``
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* ``/proc`` mounted through ``procfs``
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* User LED registration through ``/dev/userleds``
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* Basic internal GPIO helpers used by the console and LED support
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The default ``esk32:nsh`` configuration also enables these built-in
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applications:
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* ``hello``
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* ``ostest``
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* ``dumpstack``
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* ``leds``
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Buttons and LEDs
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================
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Board LEDs
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----------
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Three user LEDs from the development kit are currently mapped by the board
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port. They are active-low and are exposed through the standard NuttX
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``USERLED`` interface and the ``/dev/userleds`` device.
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===== =========== ==========
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LED Port/Pin Notes
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===== =========== ==========
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LED2 PD13 Active-low
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LED3 PD14 Active-low
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LED4 PD15 Active-low
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===== =========== ==========
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The generic ``leds`` example from ``nuttx-apps`` can be used to validate the
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LED interface.
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Board Buttons
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-------------
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No button is currently exposed by the board port.
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Pin Mapping
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===========
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The current port uses the following MCU pins:
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===== ========== ==========
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Pin Signal Notes
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===== ========== ==========
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PA9 USART1_TX Default serial console TX
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PA10 USART1_RX Default serial console RX
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PD13 LED2 User LED, active-low
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PD14 LED3 User LED, active-low
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PD15 LED4 User LED, active-low
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===== ========== ==========
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Flashing
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========
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The board directory includes a helper script for flashing through Holtek's
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Windows OpenOCD package from a WSL-based development environment:
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.. code-block:: console
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$ ./boards/arm/ht32f491x3/esk32/tools/flash.sh
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The script expects:
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* ``nuttx.bin`` already generated in the ``nuttx`` directory
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* Holtek xPack OpenOCD installed under
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``C:\Program Files (x86)\Holtek HT32 Series\HT32-IDE\xPack\xpack-openocd-0.11.0-4``
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* an HT32-Link compatible debug connection
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* Holtek xPack OpenOCD can be installed together with the HT32 IDE, available
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from Holtek's website: `Holtek Downloads <https://www.holtek.com/page/index>`_
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Useful options:
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.. code-block:: console
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$ ./boards/arm/ht32f491x3/esk32/tools/flash.sh --dry-run
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$ ./boards/arm/ht32f491x3/esk32/tools/flash.sh --device HT32F49163_100LQFP
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$ ./boards/arm/ht32f491x3/esk32/tools/flash.sh --openocd-root /mnt/c/path/to/openocd
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Testing Notes
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=============
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The following commands are useful for validating the current port:
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.. code-block:: console
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nsh> hello
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nsh> ostest
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nsh> dumpstack
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nsh> leds
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When ``leds`` is executed, the example opens ``/dev/userleds`` and cycles
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through the LED bitmasks supported by the board.
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Current Limitations
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===================
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The current port is still intentionally small. In particular:
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* only the ``nsh`` board configuration is maintained
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* only USART1 routing is described by the board port
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* LEDs are supported, but board buttons are not yet implemented
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* internal GPIO helpers exist, but there is not yet a board-level ``/dev/gpio``
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test interface in this port
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Configurations
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==============
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nsh
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---
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This is the currently maintained configuration for the board. It provides a
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serial console with the NuttShell and mounts ``/bin`` and ``/proc`` during
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board bring-up.
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Configure and build it from the ``nuttx`` directory:
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.. code-block:: console
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$ ./tools/configure.sh -l esk32:nsh
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$ make -j
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After boot, a typical prompt looks like:
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.. code-block:: console
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NuttShell (NSH) NuttX-12.x.x
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nsh> ls /
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/:
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bin/
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dev/
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proc/
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And the built-in applications can be listed with:
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.. code-block:: console
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nsh> ls /bin
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dd
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dumpstack
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hello
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leds
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nsh
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ostest
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sh
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@@ -0,0 +1,14 @@
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===============
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Holtek HT32F491
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===============
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The HT32F491x3 family is based on the ARM Cortex-M4 core.
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Supported Boards
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================
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.. toctree::
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:glob:
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:maxdepth: 1
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boards/*/*
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@@ -56,10 +56,10 @@
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#define HT32_NGPIO 6
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#define HT32_HICK_FREQUENCY 8000000
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#define HT32_HICK48_FREQUENCY 48000000
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#define HT32_HICK48_FREQUENCY 48000000
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#define HT32_HEXT_MIN_FREQUENCY 4000000
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#define HT32_HEXT_MAX_FREQUENCY 25000000
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#define HT32_PLL_MAX_FREQUENCY 150000000
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#define HT32_HEXT_MAX_FREQUENCY 25000000
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#define HT32_PLL_MAX_FREQUENCY 150000000
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#define HT32_SYSCLK_FREQUENCY CONFIG_HT32F491X3_SYSCLK_FREQUENCY
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#define HT32_HCLK_FREQUENCY HT32_SYSCLK_FREQUENCY
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@@ -0,0 +1,239 @@
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############################################################################
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# boards/arm/ht32f491x3/esk32/tools/flash.ps1
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
|
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# "License"); you may not use this file except in compliance with the
|
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
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# License for the specific language governing permissions and limitations
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||||
# under the License.
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#
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############################################################################
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param(
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[Parameter(ValueFromRemainingArguments = $true)]
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[string[]]$RemainingArgs
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)
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$ErrorActionPreference = "Stop"
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Set-StrictMode -Version 2
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$ScriptDir = $PSScriptRoot
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$TopDir = [System.IO.Path]::GetFullPath((Join-Path $ScriptDir "..\..\..\..\.."))
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$DefaultBin = Join-Path $TopDir "nuttx.bin"
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$WindowsSetup = "Windows 10 Pro"
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$PowerShellSetup = "Windows PowerShell 5.1 or newer"
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$HT32IDEVersion = "HT32-IDE 1.0.6 (Build Date: 2025/12/04)"
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$HT32IDERoot = "C:\Program Files (x86)\Holtek HT32 Series\HT32-IDE"
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$OpenOCDPackage = "xPack OpenOCD 0.11.0-4"
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$OpenOCDRoot = Join-Path $HT32IDERoot "xPack\xpack-openocd-0.11.0-4"
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$OpenOCDExe = Join-Path $OpenOCDRoot "bin\openocd.exe"
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$ScriptsDir = Join-Path $OpenOCDRoot "scripts"
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$FlashLoader = Join-Path $OpenOCDRoot "FlashLoader\HT32F491x3_256.HLM"
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$DeviceName = "HT32F49163_100LQFP"
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$FlashBase = "0x08000000"
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$FlashEnd = "0x0803FFFF"
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$SRAMBase = "0x20000000"
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$WorkAreaSize = "0xC000"
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$BinPath = $DefaultBin
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$DryRun = $false
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$ProgName = $MyInvocation.MyCommand.Name
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function Get-AbsolutePath {
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param(
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[string]$Path
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)
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if ([System.IO.Path]::IsPathRooted($Path)) {
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return [System.IO.Path]::GetFullPath($Path)
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}
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return [System.IO.Path]::GetFullPath((Join-Path (Get-Location) $Path))
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}
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function Format-CommandArgument {
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param(
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[string]$Argument
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)
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if ($Argument -match '[\s"]') {
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return '"' + ($Argument -replace '"', '\"') + '"'
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}
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return $Argument
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}
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function Show-Assumptions {
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Write-Host "############################################################################"
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Write-Host "# Assumptions:"
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Write-Host "#"
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Write-Host "# - $WindowsSetup"
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Write-Host "# - $PowerShellSetup"
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Write-Host "# - This is the native Windows backend; use flash.py from the same"
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Write-Host "# directory for automatic backend selection, or run this script directly"
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Write-Host "# - $HT32IDEVersion installed at:"
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Write-Host "# $HT32IDERoot"
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Write-Host "# - $OpenOCDPackage available at:"
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Write-Host "# $OpenOCDRoot"
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Write-Host "# - Holtek HT-Link probe using interface/htlink.cfg"
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Write-Host "# - ESK32 board with $DeviceName and FlashLoader\HT32F491x3_256.HLM"
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Write-Host "#"
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Write-Host "# Update this script if any of the above are not true."
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Write-Host "#"
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Write-Host "############################################################################"
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Write-Host ""
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}
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function Show-Usage {
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Write-Host "Usage: $ProgName [options]"
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Write-Host ""
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Write-Host "Options:"
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Write-Host " --bin PATH Binary to flash. Default: $DefaultBin"
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Write-Host " --device NAME Holtek expected device name. Default: $DeviceName"
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Write-Host " --openocd-root DIR Holtek xPack OpenOCD root."
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Write-Host " --dry-run Print the OpenOCD command without executing it."
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Write-Host " --help Show this help."
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Write-Host ""
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Write-Host "Examples:"
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Write-Host " .\$ProgName"
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Write-Host " .\$ProgName --dry-run"
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Write-Host " .\$ProgName --device HT32F49163_100LQFP"
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}
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function Fail {
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param(
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[string]$Message,
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[switch]$ShowUsage
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)
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[Console]::Error.WriteLine($Message)
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if ($ShowUsage) {
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Show-Usage
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}
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exit 1
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}
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Show-Assumptions
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for ($i = 0; $i -lt $RemainingArgs.Count; $i++) {
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switch ($RemainingArgs[$i]) {
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"--bin" {
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if ($i + 1 -ge $RemainingArgs.Count) {
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Fail "Missing value for --bin" -ShowUsage
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}
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$i++
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$BinPath = Get-AbsolutePath $RemainingArgs[$i]
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}
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"--device" {
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if ($i + 1 -ge $RemainingArgs.Count) {
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Fail "Missing value for --device" -ShowUsage
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}
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|
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$i++
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$DeviceName = $RemainingArgs[$i]
|
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}
|
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"--openocd-root" {
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if ($i + 1 -ge $RemainingArgs.Count) {
|
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Fail "Missing value for --openocd-root" -ShowUsage
|
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}
|
||||
|
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$i++
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$OpenOCDRoot = Get-AbsolutePath $RemainingArgs[$i]
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$OpenOCDExe = Join-Path $OpenOCDRoot "bin\openocd.exe"
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$ScriptsDir = Join-Path $OpenOCDRoot "scripts"
|
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$FlashLoader = Join-Path $OpenOCDRoot "FlashLoader\HT32F491x3_256.HLM"
|
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}
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"--dry-run" {
|
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$DryRun = $true
|
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}
|
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"--help" {
|
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Show-Usage
|
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exit 0
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}
|
||||
"-h" {
|
||||
Show-Usage
|
||||
exit 0
|
||||
}
|
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default {
|
||||
Fail "Unknown argument: $($RemainingArgs[$i])" -ShowUsage
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (-not $DryRun) {
|
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if (-not (Test-Path -Path $BinPath -PathType Leaf)) {
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Fail "Binary not found: $BinPath"
|
||||
}
|
||||
|
||||
if (-not (Test-Path -Path $OpenOCDExe -PathType Leaf)) {
|
||||
Fail "OpenOCD executable not found: $OpenOCDExe"
|
||||
}
|
||||
|
||||
if (-not (Test-Path -Path $FlashLoader -PathType Leaf)) {
|
||||
Fail "Flash loader not found: $FlashLoader"
|
||||
}
|
||||
}
|
||||
|
||||
$OpenOCDArgs = @(
|
||||
"-s"
|
||||
$ScriptsDir
|
||||
"-c"
|
||||
"hlm_SRAM $SRAMBase $WorkAreaSize"
|
||||
"-c"
|
||||
"hlm_loader {$FlashLoader} $FlashBase $FlashEnd"
|
||||
"-c"
|
||||
"ht_flags erase_sector"
|
||||
"-c"
|
||||
"set WORKAREASIZE $WorkAreaSize"
|
||||
"-f"
|
||||
"interface/htlink.cfg"
|
||||
"-f"
|
||||
"target/HLM491x3.cfg"
|
||||
"-c"
|
||||
"set_expected_name $DeviceName"
|
||||
"-c"
|
||||
"program $BinPath verify reset exit $FlashBase"
|
||||
)
|
||||
|
||||
$CommandParts = @($OpenOCDExe) + $OpenOCDArgs
|
||||
$CommandText = ($CommandParts | ForEach-Object { Format-CommandArgument $_ }) -join " "
|
||||
|
||||
Write-Host ("TOPDIR : {0}" -f $TopDir)
|
||||
Write-Host ("Binary : {0}" -f $BinPath)
|
||||
Write-Host ("Device : {0}" -f $DeviceName)
|
||||
Write-Host ("OpenOCD : {0}" -f $OpenOCDExe)
|
||||
Write-Host ("Flash loader: {0}" -f $FlashLoader)
|
||||
|
||||
if ($DryRun) {
|
||||
if (-not (Test-Path -Path $BinPath -PathType Leaf)) {
|
||||
Write-Host "Warning : binary not found yet"
|
||||
}
|
||||
|
||||
if (-not (Test-Path -Path $OpenOCDExe -PathType Leaf)) {
|
||||
Write-Host "Warning : OpenOCD executable not found"
|
||||
}
|
||||
|
||||
if (-not (Test-Path -Path $FlashLoader -PathType Leaf)) {
|
||||
Write-Host "Warning : flash loader not found"
|
||||
}
|
||||
|
||||
Write-Host ("Command : {0}" -f $CommandText)
|
||||
exit 0
|
||||
}
|
||||
|
||||
& $OpenOCDExe @OpenOCDArgs
|
||||
exit $LASTEXITCODE
|
||||
Executable
+91
@@ -0,0 +1,91 @@
|
||||
#!/usr/bin/env python3
|
||||
############################################################################
|
||||
# boards/arm/ht32f491x3/esk32/tools/flash.py
|
||||
#
|
||||
# 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.
|
||||
#
|
||||
############################################################################
|
||||
|
||||
# Wrapper that dispatches to flash.sh in WSL and flash.ps1 on Windows.
|
||||
|
||||
import os
|
||||
import platform
|
||||
import shutil
|
||||
import subprocess
|
||||
import sys
|
||||
from pathlib import Path
|
||||
|
||||
SCRIPT_DIR = Path(__file__).resolve().parent
|
||||
|
||||
|
||||
def is_windows_host():
|
||||
system = platform.system().lower()
|
||||
return os.name == "nt" or system.startswith("msys") or system.startswith("cygwin")
|
||||
|
||||
|
||||
def is_wsl():
|
||||
if "WSL_INTEROP" in os.environ or "WSL_DISTRO_NAME" in os.environ:
|
||||
return True
|
||||
|
||||
release = platform.release().lower()
|
||||
version = platform.version().lower()
|
||||
return "microsoft" in release or "microsoft" in version
|
||||
|
||||
|
||||
def build_command(argv):
|
||||
if is_windows_host():
|
||||
powershell = shutil.which("powershell.exe") or shutil.which("pwsh.exe")
|
||||
if powershell is None:
|
||||
raise RuntimeError("Unable to find powershell.exe or pwsh.exe in PATH.")
|
||||
|
||||
backend = SCRIPT_DIR / "flash.ps1"
|
||||
return [powershell, "-ExecutionPolicy", "Bypass", "-File", str(backend), *argv]
|
||||
|
||||
if sys.platform.startswith("linux"):
|
||||
if not is_wsl():
|
||||
raise RuntimeError(
|
||||
"Unsupported host: this wrapper supports Windows native and WSL."
|
||||
)
|
||||
|
||||
bash = shutil.which("bash")
|
||||
if bash is None:
|
||||
raise RuntimeError("Unable to find bash in PATH.")
|
||||
|
||||
backend = SCRIPT_DIR / "flash.sh"
|
||||
return [bash, str(backend), *argv]
|
||||
|
||||
raise RuntimeError(
|
||||
"Unsupported host: this wrapper supports Windows native and WSL."
|
||||
)
|
||||
|
||||
|
||||
def main(argv):
|
||||
try:
|
||||
cmd = build_command(argv)
|
||||
completed = subprocess.run(cmd, check=False)
|
||||
return completed.returncode
|
||||
except RuntimeError as err:
|
||||
print(err, file=sys.stderr)
|
||||
return 1
|
||||
except OSError as err:
|
||||
print(f"Failed to start backend script: {err}", file=sys.stderr)
|
||||
return 1
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
sys.exit(main(sys.argv[1:]))
|
||||
@@ -27,7 +27,11 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||
TOPDIR="$(cd "${SCRIPT_DIR}/../../../../.." && pwd)"
|
||||
|
||||
DEFAULT_BIN="${TOPDIR}/nuttx.bin"
|
||||
OPENOCD_ROOT="/mnt/c/Program Files (x86)/Holtek HT32 Series/HT32-IDE/xPack/xpack-openocd-0.11.0-4"
|
||||
WINDOWS_SETUP="Windows 10 Pro with WSL2"
|
||||
HT32_IDE_VERSION="HT32-IDE 1.0.6 (Build Date: 2025/12/04)"
|
||||
HT32_IDE_ROOT="/mnt/c/Program Files (x86)/Holtek HT32 Series/HT32-IDE"
|
||||
OPENOCD_PACKAGE="xPack OpenOCD 0.11.0-4"
|
||||
OPENOCD_ROOT="${HT32_IDE_ROOT}/xPack/xpack-openocd-0.11.0-4"
|
||||
OPENOCD_EXE="${OPENOCD_ROOT}/bin/openocd.exe"
|
||||
SCRIPTS_DIR="${OPENOCD_ROOT}/scripts"
|
||||
FLASH_LOADER="${OPENOCD_ROOT}/FlashLoader/HT32F491x3_256.HLM"
|
||||
@@ -39,6 +43,28 @@ WORKAREA_SIZE="0xC000"
|
||||
BIN_PATH="${DEFAULT_BIN}"
|
||||
DRY_RUN=0
|
||||
|
||||
print_assumptions() {
|
||||
cat <<EOF
|
||||
############################################################################
|
||||
# Assumptions:
|
||||
#
|
||||
# - ${WINDOWS_SETUP}; the Windows C: drive is available in WSL at /mnt/c
|
||||
# - This is the WSL backend; use flash.py from the same directory for
|
||||
# automatic backend selection, or run this script directly from WSL2
|
||||
# - ${HT32_IDE_VERSION} installed at:
|
||||
# ${HT32_IDE_ROOT}
|
||||
# - ${OPENOCD_PACKAGE} available at:
|
||||
# ${OPENOCD_ROOT}
|
||||
# - Holtek HT-Link probe using interface/htlink.cfg
|
||||
# - ESK32 board with ${DEVICE_NAME} and FlashLoader/HT32F491x3_256.HLM
|
||||
#
|
||||
# Update this script if any of the above are not true.
|
||||
#
|
||||
############################################################################
|
||||
|
||||
EOF
|
||||
}
|
||||
|
||||
usage() {
|
||||
cat <<EOF
|
||||
Usage: $0 [options]
|
||||
@@ -53,10 +79,12 @@ Options:
|
||||
Examples:
|
||||
$0
|
||||
$0 --dry-run
|
||||
$0 --device HT32F49163_64LQFP
|
||||
$0 --device HT32F49163_100LQFP
|
||||
EOF
|
||||
}
|
||||
|
||||
print_assumptions
|
||||
|
||||
while (($# > 0)); do
|
||||
case "$1" in
|
||||
--bin)
|
||||
|
||||
Reference in New Issue
Block a user