I've been trying to make a JTAG debugger work with Crazyflie 2.1, so far without success.
The device is called "Atmel SAM-ICE", its interface is SEGGER J-Link, I followed instructions on this page:
https://wiki.bitcraze.io/doc:crazyflie:dev:starting
I was able to flash the firmware, however, as for debugging in VSCode, I get this error:
CONSOLE:
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Please check OUTPUT tab (Adapter Output) for output from openocd
Launching server: "openocd" "-c" "gdb_port 50000" "-s" "/Users/mahyar/Developer/Crazyflie/Firmware/crazyflie-firmware" "-f" "interface/jlink.cfg" "-f" "target/stm32f4x.cfg"
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Open On-Chip Debugger 0.11.0
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "jtag". To override use 'transport select <transport>'.
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : J-Link ARM V8 compiled Aug 26 2015 15:08:21
Info : Hardware version: 8.00
Info : VTarget = 2.963 V
Info : clock speed 2000 kHz
Error: JTAG scan chain interrogation failed: all zeroes
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: stm32f4x.cpu: IR capture error; saw 0x00 not 0x01
Warn : Bypassing JTAG setup events due to errors
Error: Invalid ACK (0) in DAP response
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{
"window.zoomLevel": 0,
"editor.fontSize": 18,
"dafny.basePath": "/Users/mahyar/.vscode/extensions/correctnesslab.dafny-vscode-0.18.0/dafny/dafny",
"python.pythonPath": "/Applications/Xcode.app/Contents/Developer/usr/bin/python3",
"workbench.colorTheme": "Default Light+",
"launch": {
"configurations": [
{
"name": "Cortex Debug",
"cwd": "${workspaceRoot}",
"executable": "./cf2.elf",
"request": "launch",
"type": "cortex-debug",
"device": "STM32F405",
"svdFile": "STM32F405.svd",
"servertype": "openocd",
"configFiles": ["interface/jlink.cfg", "target/stm32f4x.cfg"],
"runToMain": true,
"preLaunchCommands": [
"set mem inaccessible-by-default off",
"enable breakpoint",
"monitor reset"
]
}
]
},
"C_Cpp.updateChannel": "Insiders"
}