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Resolved! how to enable ETM Trace

Hello,I am using STM32F4 (nucleo F439ZI), so Cortex-M4. I am trying to enable ETM tracing and see something on TRACE pins, I am using STLINK for SWD and observing TRACE pins with an oscilloscope. I enable the trace pins on pin configuration, and enab...

mete by Senior II
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Resolved! usart.c

I want to use the DMA for receiving data over USART. I have configured the DMA as a circular Buffer. To detect the end of the USART package I use the receiver time out.My Problem is, that when the receiver time out interrupt is triggered, not all Byt...

MLudw.1 by Associate
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  • 3 replies
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SPI Slave with DMA: How to receive packets of unknown length?

Ok guys. I think I'm slowly turining insane. Someone please help me. I already wasted so many hours on this...I'm currently fighting with getting SPI to work in slave mode with DMA. So let me explain what I'm trying to do.The STM32(F303RE) is connect...

Geend by Associate
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  • 5 replies
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Resolved! Increase PWM Resolution

Hi!Recently, I've been trying to develop a PWM generation module, in a frequency range of 1Hz to 100kHz with a duty cycle step of 1%. I'm using STM32F103C8 Bluepill to do the job.I can implement this just fine. However, in this range I obtain errors ...

Resolved! NVIC_SystemReset not working

I'm using the X-CUBE-SBSFU bootloader on a ST STM32G474VE.Sometimes NVIC_SystemReset is not resetting the controller, only a power reset helps. Any ideas? The string "Image correctly downloaded" i can see everytime!/* System Reboot*/ prin...

dominik by Senior
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  • 9 replies
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How to NUCLEO64, UART and Printf output?

Hello,I want to use UART2 on a NUCLEO-L073RZ for printf output but cannotget it to work for the life of me, please help.Context:In this scenario, I need the UART2 output direct from the PA2 / PA3pins on the ST Morpho header (CN10), in other words, no...