ppi package errors

[szhaulai]

Hi,  I tried to run an adc example (https://github.com/haakonsh/NCS_SAADC_example/tree/master. ) for nrf5340 in another post ( how-to-configure-the-dma-in-adc-and-how-to-use-async-api-in-adc) . But get a list of errors related to PPI packages. Some error snippets are attached below

n file included from C:\Users\info\ncs\v1.8.0\modules\hal\nordic\nrfx\drivers\include\nrfx_ppi.h:38,
                 from c:\Users\info\ncs\firmware_v3\NCS_SAADC_example-master\src\main.c:10:
C:\Users\info\ncs\v1.8.0\modules\hal\nordic\nrfx\hal\nrf_ppi.h:54:25: error: 'PPI_CHEN_CH0_Pos' undeclared here (not in a function); did you mean 'DPPIC_CHEN_CH0_Pos'?
   54 |     NRF_PPI_CHANNEL0  = PPI_CHEN_CH0_Pos,  /**< Channel 0. */
      |                         ^~~~~~~~~~~~~~~~
      |                         DPPIC_CHEN_CH0_Pos
C:\Users\info\ncs\v1.8.0\modules\hal\nordic\nrfx\hal\nrf_ppi.h:55:25: error: 'PPI_CHEN_CH1_Pos' undeclared here (not in a function); did you mean 'DPPIC_CHEN_CH1_Pos'?
   55 |     NRF_PPI_CHANNEL1  = PPI_CHEN_CH1_Pos,  /**< Channel 1. */
      |                         ^~~~~~~~~~~~~~~~
      |                         DPPIC_CHEN_CH1_Pos
C:\Users\info\ncs\v1.8.0\modules\hal\nordic\nrfx\hal\nrf_ppi.h:56:25: error: 'PPI_CHEN_CH2_Pos' undeclared here (not in a function); did you mean 'DPPIC_CHEN_CH2_Pos'?
   56 |     NRF_PPI_CHANNEL2  = PPI_CHEN_CH2_Pos,  /**< Channel 2. */
      |                         ^~~~~~~~~~~~~~~~
      |                         DPPIC_CHEN_CH2_Pos
C:\Users\info\ncs\v1.8.0\modules\hal\nordic\nrfx\hal\nrf_ppi.h:57:25: error: 'PPI_CHEN_CH3_Pos' undeclared here (not in a function); did you mean 'DPPIC_CHEN_CH3_Pos'?
   57 |     NRF_PPI_CHANNEL3  = PPI_CHEN_CH3_Pos,  /**< Channel 3. */
      |                         ^~~~~~~~~~~~~~~~
      |                         DPPIC_CHEN_CH3_Pos
C:\Users\info\ncs\v1.8.0\modules\hal\nordic\nrfx\hal\nrf_ppi.h:58:25: error: 'PPI_CHEN_CH4_Pos' undeclared here (not in a function); did you mean 'DPPIC_CHEN_CH4_Pos'?
   58 |     NRF_PPI_CHANNEL4  = PPI_CHEN_CH4_Pos,  /**< Channel 4. */
      |                         ^~~~~~~~~~~~~~~~
      |                         DPPIC_CHEN_CH4_Pos
C:\Users\info\ncs\v1.8.0\modules\hal\nordic\nrfx\hal\nrf_ppi.h:59:25: error: 'PPI_CHEN_CH5_Pos' undeclared here (not in a function); did you mean 'DPPIC_CHEN_CH5_Pos'?
   59 |     NRF_PPI_CHANNEL5  = PPI_CHEN_CH5_Pos,  /**< Channel 5. */
      |                         ^~~~~~~~~~~~~~~~
      |                         DPPIC_CHEN_CH5_Pos
   |                                      ^~~~~~~~~~~~

It seems the nrfx_ppi.h is replaced with dppi? I am using ncs1.8. Should I change those ppi to dppi in nrfx_ppi.h ? Please help!

[Jørgen Holmefjord]

Hi,

nRF5340 have DPPI peripheral and not PPI like the older nRF51/nRF52 series ICs. You should not change the header files or drivers, there is a separate driver for DPPI in nrfx, found in nrfx_dppi.c/.h. You can reference this Zephyr sample on how to use nrfx_dppi.

Best regards,
Jørgen