STM32 MCUs Products

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Stm32f7 Discovery - UART DMA help needed

Posted on June 30, 2017 at 10:47Hi,I have the following issue when using the attached code:board->computerABCDE\r\nthe computer dosent receive anythingi send from the computer '11\r\n'the board reply is ABCDbasically there is one step delay between ...

STM32F401 + SWO + ST-LINK/V2 ISOL

Posted on June 28, 2017 at 18:18hi,i am using STM32F401RBT6 (LQFP64) and i can't connect ST-LINK/V2 ISOL (FW V2J27S6) to program my board.i always have 'no target connected'. i tested with SMT32_utility and MDK-ARM.pin60 boot0 = 0, pin7 NRST = 1, pi...

Openocd flashing elf in STM32L4

Posted on June 30, 2017 at 01:27Hello,I am new to STM based MCU and currently have STM32L4Discovery. I am trying to flash an elf to the device using openocd (I am using linux). And failing to do so. I am trying to investigate the issue. According to...

stm32 f4xxx: how did I end up in reset_handler?

Posted on June 29, 2017 at 17:56HiIn which cortex registers would I see where this reset originated from?I have a breakpoint in the CUBEMX resethandler.Which gets trigerred after some seconds. My Project: UDP loopback LWIP + freertos. The reset happ...

IAR 7.80.2 can't download to STM32F427

Posted on June 22, 2017 at 22:25I have a customer made board with cpu STM32F427VG and ST-LINK V2 debugger, , IAR 7.80.2 can't download , but ST-LINK utility sometimes can and sometimes fail, please see the following. thanks very much for your help1....

0690X00000607TEQAY.png 0690X00000607TdQAI.png 0690X00000607T4QAI.png

DMA transfers 25% of buffer in memory to memory mode

Posted on June 29, 2017 at 23:46Using STM32F417 DMA and got it to work but it only transfers 25% of the buffer size indicated. So far, I have tested the following buffer sizes:Buffer size (bytes)            Bytes transferred10                       ...

Encoder mode with LOW POWER TIMER 1

Posted on June 16, 2017 at 00:32STM32L476I can't seem to glean the needed settings from the RM0351 rev 5 to get this to work like I thought it would.It seems to somewhat work but I can't get any counting to happen with transitions on input 1 (PC0). ...