s32k314 Lpspi_Ip_SyncTransmit issue

[jwkang]

Test SPI communication using the Lpspi_Ip_SyncTransmit issue in S32K314 In the Freertos development environment,

When transmitting SPI data, sometimes corrupted data occurs.

0x7F should be output, but 0x7E seems to be output. Why does this happen? Please let me know if there is anything I need to check.

[jwkang · Accepted solution]

I solved it by modifying the Tx timing in my code.

[danielmartynek]

Hi @jwkang,

If this is a sporadic occurrence, can you measure the bus with an analog oscilloscope?

I see the baudrate is 10MHz.

What type of pins do you use?

The GPIO AC specification can be found in the DS.

Table 26. 5.0V (4.5V - 5.5V) GPIO Output AC Specification

Table 27. 3.3V (2.97V - 3.63V) GPIO Output AC Specification

Regards,

Daniel