Use I2C0 instead of UART0 (nRF5340)

RE: Use I2C0 instead of UART0 (nRF5340)

d_developer — Thu, 04 Nov 2021 14:28:13 GMT

Hello Hakon, it worked. Thank you very much!!!

RE: Use I2C0 instead of UART0 (nRF5340)

Hakon — Mon, 01 Nov 2021 13:09:45 GMT

Can you try also disabling logging for SPM?

child_image/spm.conf -> CONFIG_SERIAL=n

RE: Use I2C0 instead of UART0 (nRF5340)

d_developer — Mon, 25 Oct 2021 05:46:10 GMT

The problem seems to be in this function

void spm_jump(void)

The program reaches a breakpoint in line 1 (reset_ns=...). When I click "Step Over", the programm jumps to line 15 (spm_config_peripheral(uart_id, 0). Now the program will reach the main, if I run the program.

reset_ns = TZ_NONSECURE_FUNC_PTR_CREATE(vtor_ns[1]);

	if (TZ_NONSECURE_FUNC_PTR_IS_NS(reset_ns)) {
		PRINT("SPM: prepare to jump to Non-Secure image.\n");

		/* Note: Move UARTE0 before jumping, if it is
		 * to be used on the Non-Secure domain.
		 */

		/* Configure UARTE0 as non-secure */
		uint8_t uart_id = NRFX_PERIPHERAL_ID_GET(NRF_UARTE0);

		IS_ENABLED(CONFIG_SPM_SHARE_CONSOLE_UART) ?
			spm_config_unlocked_peripheral(uart_id, 0) :
			spm_config_peripheral(uart_id, 0);

RE: Use I2C0 instead of UART0 (nRF5340)

Hakon — Fri, 22 Oct 2021 14:35:52 GMT

Have you tried putting a breakpoint in one of these functions to see exactly how far it gets?

RE: Use I2C0 instead of UART0 (nRF5340)

d_developer — Fri, 22 Oct 2021 05:34:03 GMT

Hello Hakon,

there are no reported errors.

I think the code crashes somewhere else. If I pause the session the code calls always the following function:

static int init_twim(const struct device *dev)

static void twim_irq_handler(NRF_TWIM_Type * p_twim, twim_control_block_t * p_cb)

static ALWAYS_INLINE void arch_irq_unlock(unsigned int key)

void z_impl_k_sem_give(struct k_sem *sem)

RE: Use I2C0 instead of UART0 (nRF5340)

Hakon — Tue, 19 Oct 2021 09:32:27 GMT

Hello,

[quote user=""]The problem is, when I run the program in debug mode, it won’t reach the main function.[/quote]

what happens when it doesn't reach main? Does it just hang, or does the code crash somewhere? Where in the code does this happen? Are there any error codes?