SPI for waveshare display module alongside uart peripheral

[jasansingh]

I am trying to connect waveshare e-paper 4.2" display to my nrf54L15, I am currently running a peripheral uart sample code on the board and my plan is to build the project above this and connect the display via SPI ports. 

I see peripheral uart sample uses UART20 which looks like putting me into trouble I tried using SPIS00 using dedicated pins on P2  as follows

#define MOSI_PIN_SLAVE NRF_GPIO_PIN_MAP (2, 4)

#define MISO_PIN_SLAVE NRF_GPIO_PIN_MAP (2, 2)

#define SCK_PIN_SLAVE NRF_GPIO_PIN_MAP (2, 1)

#define CSN_PIN_SLAVE NRF_GPIO_PIN_MAP (2, 5)


But I am running into the problem

zephyr_pre0.elf --intlist-section .intList --intlist-section intList --sw-isr-table --vector-table
gen_isr_tables.py: error: multiple registrations at table_index 74 for irq 74 (0x4a)
Existing handler 0x21839, new handler 0x2d94f
Has IRQ_CONNECT or IRQ_DIRECT_CONNECT accidentally been invoked on the same irq multiple times?


Any suggestion on which will be the right spi and pins I should be using along side the working peripheral uart functionality

[Susheel Nuguru]

Hi,

If you are using serial logs using UART then it is possible that you also have UART00 enabled for those logs and that conflicts with your SPIS00 use. Try disabling the logs and see if the conflict goes away. 

You can add the below in your project overlay file

&uart00 {
	status = "disabled";
};

And the below in prj.conf

CONFIG_LOG=n
CONFIG_SERIAL=n