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Sidekick give incorrect answer for NUCLEO-G474RE VCP

Andrew Neil
Super User

See:

https://community.st.com/t5/stm32-mcus-boards-and-hardware/struggling-with-a-simple-uart-printf-on-nucleo-g474re-works-on/m-p/874056/highlight/true#M29428

 

Sidekick says UART2, but the User Manual & Schematics show LPUART1 (default) or UART1 (by changing solder bridges):

UM screenshot: 

https://community.st.com/t5/stm32-mcus-boards-and-hardware/struggling-with-a-simple-uart-printf-on-nucleo-g474re-works-on/m-p/874047/highlight/true#M29425

Schematic screenshots - by @mƎALLEm:

https://community.st.com/t5/stm32-mcus-boards-and-hardware/struggling-with-a-simple-uart-printf-on-nucleo-g474re-works-on/m-p/874051/highlight/true#M29427

 

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
1 ACCEPTED SOLUTION

Accepted Solutions

@STOne-32 says here that the incorrect answer comes from out-of-date information in AN4989:

AndrewNeil_0-1769518481914.png

 

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

View solution in original post

4 REPLIES 4
Andrew Neil
Super User

IF, instead of just "NUCLEO-G474RE VCP", I ask, "What UART is connected to the STLink VCP on NUCLEO-G474RE?" - it does give the correct answer:

AndrewNeil_0-1769517818510.pngAndrewNeil_1-1769517836368.png

 

 

It still gives the wrong answer for the original question:

AndrewNeil_2-1769517943381.png

 

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

@STOne-32 says here that the incorrect answer comes from out-of-date information in AN4989:

AndrewNeil_0-1769518481914.png

 

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
waclawek.jan
Super User

USART2 *can* be used at that Nucleo at PA2/PA3, too.

JW

So it can:

AndrewNeil_0-1769522334907.png

AndrewNeil_1-1769522353271.png

 

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.