STM32 MCUs Products

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

STM32F0 CPAL I2C Slave

Posted on December 14, 2013 at 15:59I have two boards with STM32F0 connected by I2C. First board works like master, second works like slave. I use CPAL library and transmission works fine during normal state. When I make some disturb on the I2C line...

USART communication (code problem)

Posted on December 13, 2013 at 10:13 Dear Sir/Madam, I have been trying to understand what I am doing wrong with my serial communication. I am using STM32L Discovery board and have successfully sent and received bytes on my board/PC. ...

0690X00000604v1QAA.png
klemen by Associate II
  • 475 Views
  • 5 replies
  • 0 kudos

STM32 USART interrupt problem

Posted on December 13, 2013 at 00:55My application use EXTI1 interrupt, SPI1 interrupt and USART1(RXNE) interrupt. USART1 interrupt has highest priority. USART1_IRQHandler is very short, only storing incomming bytes to the circular buffer. When I di...

ondrej2 by Associate II
  • 949 Views
  • 5 replies
  • 0 kudos

CAN no connection

Posted on December 13, 2013 at 17:20CAN requires at least two nodes in order to work.  I'm trying to determine what the error signature is for a node that is not connected to the network so that the node can go into a timed sleep/retry mode rather t...

STM32 Flash being wiped?

Posted on December 12, 2013 at 11:22Hi This is Not a software problem. This is an electrical problem! We are seeing a number of unexpected Flash sector erasures/wipes. Typically, we are powering up/down the system connecting/disconnecting USB or RS...

chen by Associate II
  • 595 Views
  • 2 replies
  • 0 kudos

USART DMA only receives 80 bytes

Posted on December 13, 2013 at 15:43 I've got a problem with using DMA and a Uart. When I reset my uart device, it sends 96 bytes worth of data back to me. I have my DMA and uart configured to put this into a buffer. Problem is that it only puts...

RTC Time on Discovery L152

Posted on December 06, 2013 at 08:31 Dear Sir/Madam, I am a novice ARM programmer, trying to get the hang of things. It's a bit more complex than programming an 8-bit AVR controller... Anyway I was wondering, why I cannot read th...

klemen by Associate II
  • 1255 Views
  • 11 replies
  • 0 kudos

I2C causes STM32F051 to crash/reboot

Posted on November 29, 2013 at 16:07Hello, I've an STM32F051 where i2c modules can be connected (SFP video modules) These modules should be hot swappable, however it seems that the I2C communication is not dealing properly with these modules because...

evert2 by Associate II
  • 2339 Views
  • 18 replies
  • 0 kudos