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CPU hangs when calling I2C_WaitOnFlagUntilTimeout because I2C DMA interrupt handler has higher priority than system handle, so that tickcount cannot hit the Timeout. How can I resolve this trouble without consuming too much CPU ? I saw some topics ab...
Hello. I am writing an SPI driver for STM32F407 Microcontroller to control the resistance of the MCP410 chip.The datasheet for the chip can be found here:https://ww1.microchip.com/downloads/en/DeviceDoc/11195c.pdf The I use a cheap logic analyzer tog...
External 32.786KHz crystal is connected to the terminals PC14, PC15 and 6.8pF, NPO Capacitors connected between crystal and GND.Battery Back-up is provided.Configured using the STM32CubeIDE (STM32CubeMX) -> Clock Configuration to use LSE (32.786KHz)A...
Hello,I use the STM32F767 microprocessor on my PCB design. After sending back the converted data to a PC with UART, I got strange characters (in Picture1). Normally, I am supposed to get the numbers like in Picture2. The characters look like Chinese ...
I am using the stm32h745-Discovery board.I am getting the data using the interrupt method and polling method but am not able to get the Data using the uart_receive_DMA. …What are the further configurations needed for the DMA and What else to do get ...
Hello,I have a timer TIM2 interrupting every 2ms (that's working).When I receive SPI data from SPI3_IRQHandler, I want to launch the interrupt of this timer TIM2_IRQHandler as soon as possible (eg in the next 10us).Then, the timer will continue to in...
MIFEN explanation would use some rewording, too...JW
Hello,It's not clear for me what a peripheral reset (registers RCC_xxxRSTR) is doing. I didn't find the details in the reference manual. I assume it resets the internal state machine of the periph, its FIFOs, but for example does it also reset its co...
