Hello,
I work with the nRF5340 and want to use I2C0 (1-3 is reserved for other sensors in my project ). I already use I2C2 for a sensor and this works fine.
To use the I2C0, I must deactivate the UART0 because you can only use one of them. I deactivated UART0 to use I2C0. Because UART0 is necessary for the terminal output (printk-functions) I switched to RTT instead.
The problem is, when I run the program in debug mode, it won’t reach the main function. When I use “step over” the program works and the program reaches the main-function. Also the function “device_get_binding(“I2C_0”)” is successful.
This is my prj.conf:
CONFIG_PRINTK=y CONFIG_CONSOLE=y CONFIG_SERIAL=n #disable logging (serial) CONFIG_STDOUT_CONSOLE=y CONFIG_UART_CONSOLE=n CONFIG_RTT_CONSOLE=y CONFIG_USE_SEGGER_RTT=y CONFIG_DEBUG_OPTIMIZATIONS=y #Buttons and LEDs configuration CONFIG_DK_LIBRARY=y #I2C CONFIG_I2C=y CONFIG_NRFX_TWIM=y
This is my overlay file:
&uart0 {
status = "disabled";
};
&i2c0 {
compatible = "nordic,nrf-twim";
status = "okay";
sda-pin = < 0x0D >;
scl-pin = < 0x0E >;
};
Below I listed some functions that are called when I run the program. The functions are always the same.
nrfx_twim_0_irq_handler twim_irq_handler z_impl_k_sem_give z_unpend_first_thread
Why is there a difference between running the program and only use “step-over”?
Thank you very much for your help!
