The stm32-mw-openbl project supposedly implements the system memory bootloader available in all STM32 MCUs.However, there are some missing functions:The GetChecksum command is missing, but it is documentend for example in AN4221 (I2C interface for th...
I am using a stm32g071 as an I2C slave.Problem is, that I2C_SlaveTxCpltCallback() callback is called even when the master read one byte less than previously configured.I.e. With RXSIZE = 4 (as in code below),if master reads 1 byte -> okif master read...
I have a STM32G071 nucleo and want to generate an arbitrary waveform on PA0 via TIM2-CH1.I am using the HAL_TIM_DMABurst_MultiWriteStart API: it should do bursts of 3 writes to multiple registers (ARR and CCR1).Problem is, the DMA only updates the AR...
If you compile stm32f4xx_hal_pcd.c with -Wall, you will get signed/unsigned comparison warnings. Most of them seem minor, however, in line 1299 they do the following:int32_t len;
..
if(len <= 0U)
{
fifoemptymsk = 0x1U << epnum;
USBx_DEVICE->D...
Not watching the registers in the debugger (e.g. in half complete callback) is a good tip!The error was that the DMA transfer direction was wrong (peripheral to memory instead of memory to peripheral).
