Ask questions, find answers, and share insights on STM32 products and their technical features.
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...
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...
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...
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....
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 ...
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). ...
Posted on June 28, 2017 at 18:41Hi everybody,I'm wondering why the HAL library does not allow to program an auto wakeup for a STM32F042.It is not allowed via CubeMX GUI neither.I've looked into hal files :every function used to init/use the auto wak...
Posted on June 29, 2017 at 14:30I try to make some noise using a small 8 OHm @ 1 kHz Buzzer connected to the STM32F446 DAC_OUT1. Seams the PA4 pin got damaged due to high or reverse voltage induced by the buzzer. I used th push/pull GPIO config. Is ...
Posted on June 16, 2017 at 23:56From the STM32F412G-DISCO demouint32_t HAL_GetTick(void){ return (DWT->CYCCNT / (HAL_RCC_GetHCLKFreq() / 1000)) ;}How exactly does this wrap properly within the 32-bit number space? Answer: IT DOESN'T
Posted on May 23, 2017 at 10:55Hello,I am trying to reduce the HCLK frequency down to 8MHz or less on an STM32F405 MCU.Using STM32CubeMX, when I configure an HCLK clock lower than 30MHz with the clock configuration tool, the box with the HCLK freque...
