I prepared project for STM32 Discovery F072.

The main goal is generate sine wave with audio frequences using DDS algorythm.

Here is my repo.

https://github.com/djkormo/STM32CubeF0FMPatch/blob/master/src/main.c

I cannot get audio signal on my PA4 or Pa5 PIN.

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
….
HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_12B_R, value_dac); // nothing happends
HAL_DAC_SetValue(&hdac, DAC_CHANNEL_2, DAC_ALIGN_12B_R, value_dac);// nothing happends
}

On Discovery F058 similar code was working.

I don’t know what to do next to overcome the problem.

• This topic was modified 7 years, 9 months ago by djkormo.