Is it impossible to use TWI and SPI together on nrf52810?

[donghu kim]

As the title says,

I combined the TWI function with the ble_app_uart example and the three i2c sensor communication was successful.

However, when I added SPI to develop TFT LCD, SPI communication was not possible.

Can't I use TWI and SPI together on the nRF52810 chip?

[Shahar]

Did you enable the SPIM instance in the sdk_config?

In other MCUs (like the nRF52840) the TWI0/SPI0 for example share the same address, so you need to use different instance IDs.

But in the nRF52810, as there's only 1 of each (SPI0, TWI0, UARTE0) - each has its own address, so use the same instance ID for each instance

static const nrfx_spim_t m_spim0 = NRFX_SPIM_INSTANCE(0);
static const nrfx_twim_t m_twim0 = NRFX_TWIM_INSTANCE(0);

[donghu kim]

That's right. The spi and twi instances are set to zero.

First of all, I need to make sure the cause of the problem is clear.

I haven't found out whether the circuit is a problem or my code is a problem yet.

It was very helpful just to make sure that there was no problem using twi and spi together.

Thank you for your help.

[Shahar]

Are you using a nRF52 (nRF52832) DevKit in nRF52810 emulation? or an actual nRF52810?

If in emulation, check to see if there's an oversight on the instance id when in emulation mode.

Try with selecting 0 and 1 for the instance ID