STM32C5 ADC interleave mode on CubeMX2 - a guide?

[Dunk]

Hello,

I came across the above guide on ADC interleave mode and attempted to use it on MX2 for the STM32C552VET6, but many of the parameters here listed seem to be invisible to MX2 although it does seem to recognise that I am attempting interleave between the two ADCs. Can an equivalent guide be created for the C5 series?

Thanks in advance.

[Dunk]

Just found this - 

So it appears that MX2 is incomplete.

[Philippe Cherbonnel]

Hello Dunk,
ADC multimode (dual mode interleaved or simultaneous) is supported by STM32CubeMX2 HAL drivers, but not yet by UI interface.
It will be available in next STM32C5 FW package release (2.2.0).
In the meantime, you can use multimode with:
1. In UI, configure both ADC instances targeted for multimode (typically, ADC1 and ADC2).
   It will generate configuration code (mx_adc1_init(), mx_adc2_init()).

2. In your application code, add multimode configuration:

  hal_adc_handle_t *p_hadc_multimode_master = mx_adc1_gethandle(); // or mx_adc1_init() if not already called
  hal_adc_handle_t *p_hadc_multimode_slave = mx_adc2_gethandle(); // or mx_adc2_init() if not already called

  /* Link ADC handles */
  if (HAL_ADC_SetLinkNextHandle(p_hadc_multimode_master, p_hadc_multimode_slave) != HAL_OK)
  {
    return EXEC_STATUS_ERROR;
  }

  /* Multimode: configured by ADC master only */
  adc_mm_config.mode = HAL_ADC_MM_DUAL_REG_INTERL;
  adc_mm_config.reg_data_format = HAL_ADC_MM_REG_DATA_PACK_32_BITS;
  adc_mm_config.reg_data_transfer_packing = HAL_ADC_MM_REG_DATA_TRANSFER_UNPACK;
  adc_mm_config.interl_delay = HAL_ADC_MM_INTERL_DELAY_12CYCLES;
  if (HAL_ADC_MM_SetConfig(p_hadc_multimode_master, &adc_mm_config) != HAL_OK)
  {
    return EXEC_STATUS_ERROR;
  }

3. Continue with process code:
HAL_ADC_MM_Start(p_hadc_multimode_master);
HAL_ADC_MM_Calibrate(p_hadc_multimode_master);
HAL_ADC_MM_REG_StartConv_DMA(...)

Additionally, you can find an example of ADC multimode:
From https://dev.st.com/stm32-example-library, search "multimode_simultaneous_dma_multi_buffers":

https://github.com/STMicroelectronics/STM32CubeC5/tree/main/examples/hal/adc/multimode_simultaneous_dma_multi_buffers

 

Best regards
Philippe