hi i'm using the stm32h750 and in it using the baud rate of 500000 well i want ot go higher but everytime i increase the baud rate there is some charachters dropped or missing in the final received message i tried DMA its worst not filling the buffe...
I have 2 I2C interfaces set up on my STM32H753, one for the touchscreen interface (I2C3) and one for an EEPROM (I2C1). The touchscreen interface works just fine, but I have issues reading from the EEPROM. No interrupts in generated by the I2C interfa...
Hi all, i saw someone use a different way to write instructions in keil IDE , where they would write something similar to what i tried to do in the photo.i usually would write which workis just fine , any ideas how to write what im trying to ?
Hello,I am using a STM32G473VET6 on my board, and I want to save a few data bytes in Flash when the 24V power supply drops. I have more than 400ms available between the detection by the MCU and the 3.3V dropping. When the ADC triggers this event, the...
What would be an efficient, low latency way to reflect the state of an input pin onto an output pin?Is there anything more automated than configuring the input pin as an EXTI, then in the interrupt handler, reading it and setting the state of the out...
Hello,as I see at the AN5200 only in DS and HS the signal level is 3.3V.Does it mean that the IO signal level in SDR50 for example will be 1.8V on the host side?The MCU has internal LDO for it ?Or the host size is always 3.3V, and the signal voltage ...
Hello,I was searching in every STM32 CubeMX pack examples for ADC DMA with Double / Multiple Buffering. But I found nothing.I found in dma_ex hal file the functions like HAL_DMAEx_MultiBufferStart (or HAL_DMAEx_MultiBufferStart_IT), but they aren't u...
I want to do i2c writes > 255 bytes using DMA with an STM32L451, but fail to use the I2C_CR2_RELOAD flag properly it seems.I end up with an address byte when the transmission continues.How should it be done using the raw register defines.Currently I...
This page says:"With a custom main() on Arduino, do not return from main(). As there is no operating system running on a standard Arduino, there is no where to return to. If you do return, abort() is called, then exit(). On the AVR-8 MCU ( Uno, Mega ...
Question is about QSPI in stm32H743.It seems that indirect read mode and indirect write mode should behave the same if it sends only the instruction and the data is absent.But I don't receive interrupts in case of indirect mode read without data, whi...
