Dear NXP,
I have two questions regarding SPI communication development using MBDT:
- How can I read or write n bytes (>2 bytes)?
I have verified that 2-byte data transmission is working fine with the packet generator using the example project "s32k3xx_spi_async_interr_ebt".
However, when I try to transmit 4 bytes of data (0xAA 0xAB), the EVB only receives the 0xAA data.
I know this is quite normal, but I just want to provide an example to help you better understand my issue. - How do I develop synchronous transmit?
I referenced the example "s32k344_spi_sync_master_ebt" and tried to start data transmission with LPSPI2, but it doesn’t work.
I checked the status. "SPI_SetupEB" shows 0 and "SPI_SyncTransmit" shows 1.I have confirmed that my hardware connections are normal, as the asynchronous example project works correctly when programmed directly.
Please help me. Thank you.
1 解決策
Dear NXP,
Regarding the second question - "How do I develop synchronous transmit?", I found the answer myself.
I found this was an oversight on my part, I didn't enable SpiPhyUnitSync under the S32 Config tool.
This resulted in my SPI communication not functioning in synchronous mode.
But regarding the first question - "How can I read or write n bytes (>2 bytes)?", I still need your help.
I don't know who can help me.
Please forgive me for now tagging engineers who have helped me in the past.
Thank you.
