NUCLEO-152RE - 115200 baud rate does not work

anthony239955_st · ‎2016-06-19

Posted on June 20, 2016 at 04:09

Hi,

I am facing some issues with the nucleo board. (stm32L152RET6).

I used ST demo code for the UART. The baudrate is set to 9600 and it works. When I set it to 115200 it doesn't. Anyone has experienced this issue or if it is a known one?

I am not using DMA and do not want to.

Cheers,

B.

#stm32l152 #uart #hal

Tesla DeLorean · ‎2016-06-19

Posted on June 20, 2016 at 05:10

Consider how fast you are clocking the processor/bus, and if that is sufficiently fast.

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anthony239955_st · ‎2016-06-19

Posted on June 20, 2016 at 05:35

oh sorry I forgot to mention that the clock is set to 32MHz.

From: clive1

Posted: Monday, June 20, 2016 5:10 AM

Subject: NUCLEO-152RE - 115200 baud rate does not work

Consider how fast you are clocking the processor/bus, and if that is sufficiently fast.

Walid FTITI_O · ‎2016-06-20

Posted on June 20, 2016 at 13:02

Hi brushtakopo,

Check theese thread which may be helpful and tell us:

https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USART%2c%20115200%20not%20work&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=1814

https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery/NUCLEO-L152RE%20-%20Sending%20data%20at%20115200%20baud%20on%20USART2%20kills%20ST-LINK%20VCP&FolderCTID=0x01200200770978C69A1141439FE559EB459D75...

-Hannibal-