error: #20: identifier "NRF_SPIS0" is undefined

[FredNovalia]

Hi,

After configuring the nRF51422 as a SPIS slave 0, we get the following error when trying to create the slave instance:

static const nrf_drv_spis_t spis = NRF_DRV_SPIS_INSTANCE(SPIS0_INSTANCE_INDEX); /**< SPI instance. */

......\m_SPI_MIDI.c(39): error: #20: identifier "NRF_SPIS0" is undefined static const nrf_drv_spis_t spis = RF_DRV_SPIS_INSTANCE(SPIS0_INSTANCE_INDEX); /**< SPI instance. */

Any idea why "NRF_SPIS0" is undefined?

Thanks,

Fred

[Sigurd]

Hi,

On the nRF51 there is only 1 SPI slave, SPIS1, so you need to use SPIS instance 1 instead of 0:

#define SPIS_INSTANCE 1 /**< SPIS instance index. */
static const nrf_drv_spis_t spis = NRF_DRV_SPIS_INSTANCE(SPIS_INSTANCE);/**< SPIS instance. */

From the nRF51422 Product Specification page 34:

[FredNovalia]

Thanks, that was it. The code compiles now.

Just a suggestion, maybe when the nRF51 target is selected, the SPIS0 could be greyed and disabled so the user cannot select it in the Configuration Wizard.

Thanks again,

Fred