SPIM transfer crashing on nRF5340

[Jason Lei]

Hi,

I'm developing a program using SPIM instance 1 on nRF5340 PDK, with nRF Connect SDK 1.4.0. 

The problem I met is exactly the same as this post. If I want to use a handler, the SPI transfer will crash.

However, it seems I can not solve this problem on nRF5340 like the post above, as there is no nrfx_irqs header file for nRF5340 in the nrfx library. 

So, is there any workaround to solve this?

[Jørgen Holmefjord]

Hi,

Sorry for not getting back to you sooner on this issue.

You can find a working nrfx SPIM example with handler in this post. I tested the example by building it for nrf5340dk_nrf5340_cpuapp target, but I had to modify one function in main.c to the following:

static void manual_isr_setup()
{
#if defined(NRF9160_XXAA)
	IRQ_DIRECT_CONNECT(UARTE1_SPIM1_SPIS1_TWIM1_TWIS1_IRQn, 0,
			   nrfx_spim_1_irq_handler, 0);
	irq_enable(UARTE1_SPIM1_SPIS1_TWIM1_TWIS1_IRQn);

#elif defined(NRF5340_XXAA)
	IRQ_DIRECT_CONNECT(SPIM1_SPIS1_TWIM1_TWIS1_UARTE1_IRQn, 0,
			   nrfx_spim_1_irq_handler, 0);
	irq_enable(SPIM1_SPIS1_TWIM1_TWIS1_UARTE1_IRQn);
#else
	IRQ_DIRECT_CONNECT(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn, 0,
			   nrfx_spim_1_irq_handler, 0);
	irq_enable(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn);
#endif
}

Can you check if you are able to use this example?

Best regards,
Jørgen

[Jason Lei]

Thanks, Jørgen. With your code above, now I can get into a SPI handler successfully.