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I am using the CCMRAM to store some large array which should be zero-initialized.My definition for the arrays is similar to:__attribute__ ((section (".ccmram"))) uint32_t large_array[4096];Obviously, there is no constructor for these and there should...
Hello everyone,I want to add a device unique ID (a uint16_t progressive counter that identify my device as a whole, not only the mcu used) at programming time to a stm32f446 based product. Is there a standard known standard way to do this?Maybe it’s ...
stm32f407 read out IPR5 50d0d0d0, document says its Reset value: 0x0000 0000why i got d0
Hi community,I would like to toggle GPIO when operation flash (Erase and Programming)I have tried relocation vector table and code in the ramI have determined vector table and code in the ram，Keil Debug mode show their address in the ram after 0x2...
As the title suggests, im having a problem using HAL to make some USART echo.I tried the same approch on a nucleo-f031 and its working wonderfully.I can print the whole hyperterminal string, but i cant reach the receive interrupt. Even if i set the R...
The official release of STM32G4 was scheduled for the 20th week of 2019, but now we are in the 21st week and there is still nothing. Any problems?Andrea
I am using a STM32L476. I am using the counter mode on the low power timer to generate an interrupt after a given period. When I am in run mode, this interrupt works just fine. However, when I use the interrupt to try and wake the MCU from Stop2, I g...
Posted on February 03, 2018 at 07:45I want to calculate CRC for large file, the large file have been added the CRC value in the end of the whole .bin file(Get this CRC data via IAR tool). I read the file and calculate CRC of it in part(HAL_CRC_Calcu...
i have problem with data ud and clk signals out to dds.its not a steady stream to dds.in the oscilloscope the data,clk ud signals are not stable.the signal are moving and jumping around so the dds of course gives weird and wrong freq.i tried intern...
stm32f407i code in RTEMS, system sleep function will call __wfi , i can not wake up from sleep by pressing keyrtems_isr EINT95_handler(rtems_vector_number vector) { if(EXIT_PR & 0x200) { printk("exit 9 hap\n"); int pin = STM...
