Forum Posts
interrupt call back response time
Using a stm32h7From what I gather this 1.5 responce tie is normal. Is there a trick or two I can use to speed this up? Can I move the callback location in memory? I'd like to get this much closer to a a few ticks.
STM32G474: Processor hanging when NVIC_Enable Debugger-Timer IRQ.
Hello,currently I'm transferring from a Nucleo to the target electronics(STM32G474RE3), but when I download the Code(verified successfully) and start it, the Processor is hanging when the Timer IRQ for the Debugger is enabled.Supply Voltage is ok, 3....
STM32F411CEU6 ADC data offset does not work
HI,i am using STM32F411 for a digital signal processing intensive application where the ADC is used for continuous acquisition at 1.6MSPS (via DMA), the firmware was developped on STM32L476 for convenience but the final version uses STM32F411CEU6 bec...
Debug code falsely seeing memory as 0 until I break in the debugger
Schrodinger's Memory: In debug my STM32F407VG Discovery code is seeing zeros in an array loaded using DMA (which is working), but if I break and single step, the code suddenly see's the values. Super weird! I´m using STM32CubeIDE which was fully upda...
Resolved! ADC getvalue() not giving values
Hello,I am using STM32L011G4U7 and wants to get the adc value where it showed once and not it is giving 0 for the adc raw values. Also please let me know that in order to read the vcc that is 3.3 volts do I need to select VREFINT channel as well alon...
How to swap DMA/DAC buffer only when a circular dma/dac has completed - STM32H7A/B
Edit: I've pretty much solved my problem. The issue of course was that I was setting the Complete flag in the first cycle. By changing: if(DAC_Complete){ swap_buffer(); DAC_Complete=0; }to:DAC_Complete=0; while(DAC_Complete){ swap_buffer(); }Things a...
Timer input capture with circular DMA. How do I temporarily stop the DMA and then resume?
I'm using an STM32F429. I have setup a timer to capture rising edges on CH1 and a DMA to store the captured values into a circular buffer.How can I temporarily stop the DMA from placing new values into the buffer while I'm reading values from the buf...
Transmitted UART message mixed with other message
I'm trying to filter bunch of NMEA message$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E $GPGLL,0745.76471,S,11023.30874,E,040509.000,V,N*58 $PSTMCPU,27.96,-1,98*49 $GPRMC,040510.000,V,0745.76471,S,11023.30874,E,,,061222,,,N*62 $GPGGA,040510.000,0745.76471...
