Data Collision between USART and SPI.

[DAvra]

I my project I use UART 1 and 2 and SPI 1 and 2.

When I send data via UART 1 using the function "HAL_UART_Transmit_IT (....)" and the second line in code I use the function "HAL_SPI_Transmit (....)" the data received from the UART 1 is incorrect, the head of message is Ok but the rest looks like garbage.

Looks is a collision between USART and SPI.

Regards,

Didi Avram

[waclawek.jan]

Hardware problem (short, ground problem)?

Observe data lines using oscilloscope or logic analyzer.

JW

[Tesla DeLorean]

Don't use blocking functions in IRQ Handlers or callbacks​