About DTeuc.1

DTeuc.1 · 2022-04-12

It's a STM32L053R8 (Nucleo64) and i am using a DAC with circular DMA to generate an analog waveform. Now i need to use a PWM timer to generate some digital output signals synchronous to the DMA cycle. Can i use two pins to route the DMA interrupt to ...

DTeuc.1 · 2024-07-20

Old thread, yet i was analyzing this and asked myself whether calling HAL_ETH_Transmit_IT() in ethernetif.c with the stack variable TxConfig is the right thing to do. I remember from using HAL_UART_Transmit_IT() that we can't do it. Those interrupt p...

DTeuc.1 · 2022-04-14

The solution i found now uses Tim6 to trigger the DAC (and its DMA, 15 samples) and Tim2 to generate the PWM signals. In order to synchronize DAC and PWM i am using the fourth channel of Tim2 in capture mode with Comparator2 to trigger on a feature i...

DTeuc.1 · 2022-04-12

Meanwhile i learned that the DMA interrupt is jittery, so no good for timing. Anyway the DMA counter isn't directly related to the DAC output, as it feeds the data holding register. Probably one needs to disable interrupts and start the DAC trigger t...

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Route DMA interrupt signal to PWM timer trigger input

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