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TOlli
Senior
July 17, 2019
Solved

Let's Get Started - Garbage Serial Terminal Output

  • July 17, 2019
  • 2 replies
  • 1936 views

Hi,

I've been following the guide over at:

https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157C-DK2/Let%27s_start/Execute_basic_commands

I'm using a Windows 10 as a host, but I was hoping I'm not the only one. I don't have access to a Linux environment at the moment.

I'm at the point where I need to connect to the device using the UART/ST-Link, power on, and press reset on the device to see an output on the terminal.

My setup is:

  • Host is Windows 10
    • Terminal is called Termite 3.4 (no install version)
  • DK2 is powered from a dedicated USB power (500mA source)
  • DK2 boots up fine (the display works and the demo environment seems to work ok)
  • Serial settings I have as follows: COM3 9600 bps, 8N1, No Handshake
    • 8 bits, no parity, 1 stop bit, no flow control

The output in the terminal, after pressing reset, is all jumbled and garbage:

[00] TÙ@¾"#V�Šÿ£[1B][18]Äã[12][07]€Åÿ‹3[15]"[03]ª�¢AÄ&KûÇÊ[0B]K[13]ÿ[05]˜C[13]àÕC BQpZ•®§#�qS‚[03]�?ƒˆJ##B¥[05]í½ÇõOEüc½½[08][1A]0Aáqú[07]¨ú[08]F[17][14]³![03]([05]JÖ[0C]ÅQ[15]`Eç‚õ[1F]K[19]Î0ƒ£{qñ¡Uý[03]�?Ç/NU�?5wg?L¦ÿ�?ÉÀåT¡’‘¡­[06]#€©2#3)³ÿÉ�?D±üðò…)E-Uÿ[1F]*ÿÀ[13][18]z�š™�?‘Ü¡"[1C]£ÑN™[11]$c{3�F†ý¡"M/ó‘çò1AŠXf$&WëÂ?4ýG¦ìGý�?3f`[13]+[16]m+nú�?3!¾…%!q�?0a >€rª  	€‘/•À.#Mé)[04]€@‘„�ò&Ù@^ó[00]‚7l-jO[00]"m¨MÑ%+á€�9¤ã/‚[16]§&36i9^[0B]õŸô[14]Ñ?F[0F]�?76'!‚‘+'„á#â‚.[13]#e[15]‚Óæâ#M+Aá.[13]#e[15]‚Óâá#Ä'[17]M©â3[02][15]È5Ñ¡†kAi+F¡¡Ù-'·B[08]&[17]M+‚¡!Ù-'§B[08]&[17]M##€FÙ«[10]m€3éE[19]Ä[13]M[1C]j?áIµ ÑÖ_Qt7DAF¤!e�±Çò3‰��?³¥3ùb	M=Bá!&M-£[16]EÑu[00]F%#BE$N[08]Ñu§[02] �?€[04]M0e¡2�Ç‘�°�Rá[05]a�À[11]E�MƤ#€�¡ÂP[04]MÀ[07]Y�#%@� .Ú�[17]� Aiã7¦Mà[1D]#�‘[1D][16]\[15]’m$EêÛéÓ@�?Ô�?€éM+űeé%%ñÑÅ‘á#N[14][05]M+/ãke“t1-A[05][13]3 ±“M[02]†af�?â[14]‰‚+c0[0C]é[11]@©Â²[04][11]’Åâ#[03]$mIs©$¡m�?*B´g7éZ±M#a[17]'W#F f7Åán�áá[17]a©³É¡a[17]á°‚FŠÂa[17]6MM-%u3Ñ+©ÉcýWut•+ÑU�—mù[03]Ñ™3‚w�?§Ù[0F]m;Ò'C^-š+¥![07]‚fà¨eÆ9,¦[0B]áÆ¶Â&-Ò°Ù†€ºU+B[1D][08]Æñ¦E�?[17]ÃN‘![12]¿á¢+ Œ[00]Ä�?³F�?'�?á#=![12]»á¢#'¥WÃ_‘F�?'�?$#=![12]»}5æ'ÑF€ƒ¢æ7Ñ[08]±ñ¦e�?)[0B]»!À#%�?/áÒ¶#+¤ð#a�?_##MÂ@[17]ÂO-#uÑZ��+�úañ²„&aW-ö? Q'E°ñ[07]333[04]-N[02]á¡$[05]á#†Â[00][15]u„[06][11]á[02]ñ‚�[16]3#³[04]-'sa�'T;aÙ'3á[1B]Éa�g¢[1B];C¡#+çrr[0B]Æ'o ù—»O °“±m¥Ê06Ñ)_ åù?€G1D›Aá€f[13]ÂÇù‚^+[12]M|?Àã£ñ€Ñg&·�?¡‚#?@Jcùm'Sá+Ë¡áÂgñc>i[1D]+?âb[03]±'�?[06]"Aá/�?F
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Has anyone got any tips for me at this point? Any settings I should be going over? I tried looking over the guide, but I don't think the settings were referenced anywhere for the serial connection.

Best regards,

Tero

This topic has been closed for replies.
Best answer by PatrickF

Hello,

speed need to be set to 115200 bps

see also https://wiki.st.com/stm32mpu/wiki/How_to_get_Terminal

2 replies

PatrickF
PatrickFBest answer
Technical Moderator
July 17, 2019

Hello,

speed need to be set to 115200 bps

see also https://wiki.st.com/stm32mpu/wiki/How_to_get_Terminal

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TOlli
TOlliAuthor
Senior
July 18, 2019

That did it! Thank you!

Might I suggest linking that page on the original step by step procedure?

Best regards,

tero