about spi_transceive in NCS 1.7.1

[peter_liu]

i was working on NCS v1.6.1 before, and recently, i upgrade my NCS to v1.7.1. then i find the spi_transceive() function changed.

i use spi_transceive for SPIS receiving loop. in v1.6.1, it used to block the SPIS loop until receiving the data sent from the SPIM.

however, in v1.7.1, it will timeout immediately after called and with a error message "E: Timeout waiting for transfer complete" on console log.

therefore, the SPIS loop will continuing print the timeout message, it's bothering. and i can't fine where the message is printed from in source code.

so, i'd like to know if the spi_transceive can be set back to blocking mode. and how to disable the error message.

[Håkon Alseth]

Hi,

 

This looks like a bug introduced when improving the timeout handling for SPI master mode.

Can you try to add this fix and see if it works better?

https://github.com/zephyrproject-rtos/zephyr/commit/3489ca9da2a38d22cb7fe189ba573f2043d70cbd#diff-d7395fd8923a57e55e91609c974e745addf376984886245b0771a8e8a9ed6bee

 

(PR for this fix available here: https://github.com/zephyrproject-rtos/zephyr/pull/39906)

 

My apologies for the inconvenience!

 

Kind regards,

Håkon