106 lines
2.9 KiB
Markdown
106 lines
2.9 KiB
Markdown
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# Flipper Zero as CMSIS DAP/DAP Link
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Flipper Zero as a [Free-DAP](https://github.com/ataradov/free-dap) based SWD\JTAG debugger. Free-DAP is a free and open source firmware implementation of the [CMSIS-DAP](https://www.keil.com/pack/doc/CMSIS_Dev/DAP/html/index.html) debugger.
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## Protocols
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SWD, JTAG , CMSIS-DAP v1 (18 KiB/s), CMSIS-DAP v2 (46 KiB/s), VCP (USB-UART).
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WinUSB for driverless installation for Windows 8 and above.
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## Usage
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### VSCode + Cortex-Debug
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Set `"device": "cmsis-dap"`
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<details>
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<summary>BluePill configuration example</summary>
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```json
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{
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"name": "Attach (DAP)",
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"cwd": "${workspaceFolder}",
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"executable": "./build/firmware.elf",
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"request": "attach",
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"type": "cortex-debug",
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"servertype": "openocd",
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"device": "cmsis-dap",
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"configFiles": [
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"interface/cmsis-dap.cfg",
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"target/stm32f1x.cfg",
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],
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},
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```
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</details>
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<details>
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<summary>Flipper Zero configuration example</summary>
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```json
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{
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"name": "Attach (DAP)",
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"cwd": "${workspaceFolder}",
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"executable": "./build/latest/firmware.elf",
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"request": "attach",
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"type": "cortex-debug",
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"servertype": "openocd",
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"device": "cmsis-dap",
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"svdFile": "./debug/STM32WB55_CM4.svd",
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"rtos": "FreeRTOS",
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"configFiles": [
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"interface/cmsis-dap.cfg",
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"./debug/stm32wbx.cfg",
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],
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"postAttachCommands": [
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"source debug/flipperapps.py",
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],
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},
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```
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</details>
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### OpenOCD
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Use `interface/cmsis-dap.cfg`. You will need OpenOCD v0.11.0.
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Additional commands:
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* `cmsis_dap_backend hid` for CMSIS-DAP v1 protocol.
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* `cmsis_dap_backend usb_bulk` for CMSIS-DAP v2 protocol.
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* `cmsis_dap_serial DAP_Oyevoxo` use DAP-Link running on Flipper named `Oyevoxo`.
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* `cmsis-dap cmd 81` - reboot connected DAP-Link.
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<details>
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<summary>Flash BluePill</summary>
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```
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openocd -f interface/cmsis-dap.cfg -f target/stm32f1x.cfg -c init -c "program build/firmware.bin reset exit 0x8000000"
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```
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</details>
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<details>
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<summary>Flash Flipper Zero using DAP v2 protocol</summary>
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```
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openocd -f interface/cmsis-dap.cfg -c "cmsis_dap_backend usb_bulk" -f debug/stm32wbx.cfg -c init -c "program build/latest/firmware.bin reset exit 0x8000000"
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```
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</details>
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<details>
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<summary>Reboot connected DAP-Link on Flipper named Oyevoxo</summary>
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```
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openocd -f interface/cmsis-dap.cfg -c "cmsis_dap_serial DAP_Oyevoxo" -c "transport select swd" -c "adapter speed 4000000" -c init -c "cmsis-dap cmd 81" -c "exit"
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```
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</details>
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### PlatformIO
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Use `debug_tool = cmsis-dap` and `upload_protocol = cmsis-dap`. [Documentation](https://docs.platformio.org/en/latest/plus/debug-tools/cmsis-dap.html#debugging-tool-cmsis-dap). Remember that Windows 8 and above do not require drivers.
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<details>
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<summary>BluePill platformio.ini example</summary>
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```
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[env:bluepill_f103c8]
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platform = ststm32
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board = bluepill_f103c8
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debug_tool = cmsis-dap
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upload_protocol = cmsis-dap
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```
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</details>
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