Adding printf() in UART caused stalling

RE: Adding printf() in UART caused stalling

JONATHAN LL — Wed, 01 Dec 2021 08:58:47 GMT

[quote user="Christopher Bilal"]For the SPI and TWI part, how can I know if I have the memory map issue?[/quote]

In the section of the documentation it shows what address the different peripherals has, some peripherals has the same address, so they can not be used at the same time.
Example, SPI0 and TWI0 share the same base address.

Where in the in code is the printf() called?

Can you share you project?

Regards,
Jonathan

RE: Adding printf() in UART caused stalling

Christopher Bilal — Tue, 30 Nov 2021 20:44:18 GMT

Hi,

The RTT is enabled but NRF_LOG_BACKEND_UART_ENABLED is not there.

How should I add it?

For the SPI and TWI part, how can I know if I have the memory map issue?

Thanks,

RE: Adding printf() in UART caused stalling

JONATHAN LL — Tue, 30 Nov 2021 08:22:39 GMT

Hi,

Have a look at NRF_LOG_BACKEND_RTT_ENABLED and NRF_LOG_BACKEND_UART_ENABLED. What is it in the sdk_config.h

And could it be that you have a memory map issue, where you have used SPI and TWI from the same address?
https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/memory.html?cp=4_2_0_7_2#memorymap

Regards,
Jonathan

RE: Adding printf() in UART caused stalling

Christopher Bilal — Mon, 29 Nov 2021 18:11:29 GMT

I am using SDK 17.0.

I started with nrf_ble_uart and spi examples. I also added GPIOTE to trigger SPI. The program worked fine in spi but when I added the code to uart it can not work.

RE: Adding printf() in UART caused stalling

JONATHAN LL — Mon, 29 Nov 2021 09:08:27 GMT

[quote user="Christopher Bilal"]I am using nRF52832[/quote]

Nice to know the HW but I was thinking about soft ware, What version of the nRF5 SDK are you using?

Did you use an example project to start working? If so what example, or could you share the project maybe?

Regards,
Jonathan

RE: Adding printf() in UART caused stalling

Christopher Bilal — Mon, 29 Nov 2021 01:06:25 GMT

Hi,

Thanks for your help!

I am using nRF52832.

I tried to only print one buffer, but it still stalled the program.

RE: Adding printf() in UART caused stalling

JONATHAN LL — Mon, 22 Nov 2021 12:37:11 GMT

Hi Chris,

What nRF5SDK are you using?

[quote user=""]printf("TX: %x %x %x %x, RX :%x %x %x %x", spi_tx_buf[0], spi_tx_buf[1], spi_tx_buf[2], spi_tx_buf[3], spi_rx_buf[0], spi_rx_buf[1], spi_rx_buf[2], spi_rx_buf[3]);[/quote]

Have you tried to only print parts of this to se if it works?

Regards,
Jonathan