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What is the reason for transaction stalled error while running flash_firmware.sh #798
Description
I am getting the following error while running ros2 run micro_ros_setup flash_firmware.sh
Flashing firmware for zephyr platform olimex-stm32-e407
Bus 003 Device 018: ID 15ba:002a Olimex OpenOCD JTAG ARM-USB-TINY-H
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 : clock speed 2000 kHz
Info : JTAG tap: stm32f4x.cpu tap/device found: 0x4ba00477 (mfg: 0x23b (ARM Ltd), part: 0xba00, ver: 0x4)
Info : JTAG tap: [stm32f4x.bs](http://stm32f4x.bs/) tap/device found: 0x06413041 (mfg: 0x020 (STMicroelectronics), part: 0x6413, ver: 0x0)
Info : DAP transaction stalled (WAIT) - slowing down
Info : DAP transaction stalled (WAIT) - slowing down
Info : DAP transaction stalled (WAIT) - slowing down
Info : DAP transaction stalled (WAIT) - slowing down
Info : DAP transaction stalled (WAIT) - slowing down
Info : stm32f4x.cpu: hardware has 0 breakpoints, 0 watchpoints
Info : starting gdb server for stm32f4x.cpu on 3333
Info : Listening on port 3333 for gdb connections
Info : JTAG tap: stm32f4x.cpu tap/device found: 0x4ba00477 (mfg: 0x23b (ARM Ltd), part: 0xba00, ver: 0x4)
Info : JTAG tap: [stm32f4x.bs](http://stm32f4x.bs/) tap/device found: 0x06413041 (mfg: 0x020 (STMicroelectronics), part: 0x6413, ver: 0x0)
Error: Could not find MEM-AP to control the core
Info : DAP transaction stalled (WAIT) - slowing down
Info : DAP transaction stalled (WAIT) - slowing down
Info : DAP transaction stalled (WAIT) - slowing down
Info : DAP transaction stalled (WAIT) - slowing down
Error: Failed to enable the FPB
TARGET: stm32f4x.cpu - Not halted
[ros2run]: Process exited with failure 1
I have the STM32-E407 Board and flashing via ARM-USB-TINY-H. At times it works after I press reset for some time. And after sometime if I try to flash again with a new program this happens.
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