[DigiKey "Smart Manufacturing, Non-stop Happiness" Creative Competition] bbb RMP started running with a faltering pace

iysheng

[DigiKey "Smart Manufacturing, Non-stop Happiness" Creative Competition] bbb RMP started running with a faltering pace [Copy link]

After a period of waiting, the expansion board of bbb is welded. Here are some pictures of the actual product: 
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 Because the extended double-row pin headers bought on Taobao have not arrived yet, we are currently using a single-row array to weld the required pins, which may not be so compact. Here is a picture of testing and debugging an STM32F103CBT6: 
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 The following is the process of using gdb to debug STM32 through BBB + expansion board (bbb RMP). The whole project is my modified black magic probe project. Look at the print information that gdb recognizes STM32 normally: ``` GNU gdb (Arm GNU Toolchain 12.2.MPACBTI-Rel1 (Build arm-12-mpacbti.34)) 13.1.90.20230307-git Copyright (C) 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later<http: gnu.org="" gpl.html="" licenses="">
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "--host=x86_64 -pc-linux-gnu --target=arm-none-eabi". Type "show configuration" for configuration details. For bug reporting instructions, please see:
<https: bugs.linaro.org="">. Find the GDB manual and other documentation resources online at:
  <http: documentation="" gdb="" software="" www.gnu.org="">. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from out/RLM.elf... Target already powered (3.2V) Target voltage: 3.2V Available Targets: Available Targets: No. Att Driver 1 STM32F1 medium density M3 _stm32_lora_write (buffer=0x20000ba4<lora_app_stack>"\202\377\377\300\260\v", len=4) at ../bsp/stm32f103-led/drivers/lora.c:150 150 LL_SPI_TransmitData8(SPI1, buffer<i>); (gdb) q ``` Currently single-step is also possible, but there is a problem. I don't know why I still need to use an oscilloscope probe or a voltmeter probe to touch either end of the matching resistor of TMS. I have ruled out poor soldering contact (I have re-soldered it but the problem is still the same). I hope someone can give me some advice. 
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 I feel there is still a long way to go. Looking forward to the next update.</lora_app_stack></http:></https:></http:>

吾妻思萌

bbb What do the three bs mean?

iysheng

Azuma Simeng posted on 2024-1-8 08:26 bbb What does the three bs mean~

beaglebone black

iysheng

I made a small step forward tonight. According to the print test I added, I found that commenting out some of the code can ensure that the debugged chip and registers can be identified without the need for a probe. The diff of this part is as follows: ```diff diff --git a/src/target/adiv5.cb/src/target/adiv5.c index 2a5dfb97..00c97819 100644 --- a/src/target/adiv5.c +++ b/src/target/adiv5.c @@ -394,8 +394,13 @@ static uint32_t cortexm_initial_halt(adiv5_access_port_s *ap) /* If we're not on a minimal DP implementation, use TRNCNT to help */ if (!ap->dp->mindp) { /* Ask the AP to repeatedly retry the write to DHCSR */ + /* Debugging step by step, I found that the comments here can be recognized normally. I don't know why, otherwise it will prompt + * SWD access has invalid ack 5 * + >dp, ADIV5_LOW_WRITE, ADIV5_AP_DRW, ``` Debug test: ``` bash Enabling target power Target voltage: 3.2V Available Targets: No. Att Driver 1 STM32F1 medium density M3
<signal called="" handler="">
(gdb) info reg r0 0xfff7ffef -524305 r1 0xff7fbbfc -8406020 r2 0x6dacbbe0 1840036832 r3 0xe09e1bb3 -526509133 r4 0x7effebff 2130701311 r5 0xffffffeff -257 r6 0x275c107c 660344956 r7 0x83a21434 -2086529996 r8 0xfeffffdc -16777252 r9 0x7feffffc 2146435068 r10 0xac2620a8 -1406787416 r11 0x4417d9c6 0xffffffdc 0xffffffdc psp 0x6ef08160 0x6ef08160 primask 0x0 0 '\000' basepri 0x0 0 '\000' faultmask 0x0 0 '\000' control 0x0 0 '\000' ' (gdb) ``` Although it is a small step forward, there is still a long way to go. It is currently stuck at downloading the program. There are still some problems when downloading programs to stm32 via bbb. . . . Woohoo</signal>

lugl4313820

Although it is a small step forward, there is still a long way to go. Currently, it is stuck here when downloading the program. There are still some problems when downloading the program to stm32 through bbb. . . . Woohoo

It’s okay, keep going, the competition is just a small episode on the road to growth!

[DigiKey "Smart Manufacturing, Non-stop Happiness" Creative Competition] bbb RMP started running with a faltering pace [Copy link]

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