About JBarr.7

JBarr.7 · 2020-06-05

Hello, We have an application where we want to use basic serial ports to communicate between two STM32 processors (32F030RCTs). The two processors are on two different boards but with the same ground system. Each processor receives and transmits per...

JBarr.7 · 2018-11-14

Hello, We have a design whereby one of the STM32 RX inputs is driven hi by an external unit before the STM32 is powered up. This somehow prevents the STM32 from booting when power is applied to the STM32. We can manually reset the STM32 after that an...

JBarr.7 · 2020-06-05

Thanks Clive. I'm the HW engineer working on this so not overly familiar with the code etc. We are using HAL. According to my SW colleague the overrun originates from the very low level section of HAL UART operation. Comms operate normally using a PC...

JBarr.7 · 2018-11-14

Hello to all, @AvaTar it was my first time posting on this forum so not sure of conventions. Apologies for not posting properly. Back to the issue:Good point on the BOOT0 pin but that's tied low so that's not the issue.I'll try to describe the issue...

User statistics

User Activity

Connecting two STM32s using a serial port causes overrun problems

Hello, We have a design whereby one of the STM32 RX inputs is driven hi by an external unit before the STM32 is powered up. This somehow prevents the STM32 from booting when power is applied to the STM32. Can someone shed any light on this please?

Re: Connecting two STM32s using a serial port causes overrun problems

Re: Hello, We have a design whereby one of the STM32 RX inputs is driven hi by an external unit before the STM32 is powered up. This somehow prevents the STM32 from booting when power is applied to the STM32. Can someone shed any light on this please?