S32KのトピックRe: S32k344 SPI Master Slave

S32k344 SPI Master Slave

JoDo — Wed, 22 Sep 2021 11:30:28 GMT

Hello,
I am trying to get the example "Lpspi_Ip_transfer_s32K344" to work.
I connected the two SPI channels together (LPSPI_0 = master, LPSPI_2 = slave) to do something like a loopback test.

First I tried the code from the example with DMA. But the master didn't get the right bytes:
TxSlaveBuffer ={0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19};
RxMasterBuffer = {0x07, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00};

On the second try (without DMA or with synchronous transfer) the first 4 bytes were transferred correctly. The first 4 bytes I think due to the maximum available master RxBuffer in the controller.

I also tried to solve it simply with interrupts, but it seems that the SPI driver works in polling mode by default, at least I could not set it in the configuration.

Anyone could give me a hint?

Thanks!

Re: S32k344 SPI Master Slave

Robin_Shen — Fri, 08 Oct 2021 08:26:28 GMT

Hi Johannes,

Sorry to keep you waiting. I have received the feedback from AE team:

I have modified the example and can be able to run it normally. Please find it in attached file.
Thank you for your response. As far as I know, this issue has been fixed and the example will be ok in the next release.

Please notice the pins connection of your board. The test on my S32K3X4EVB REV A development board can pass.

Best Regards,
Robin

Re: S32k344 SPI Master Slave

JoDo — Mon, 11 Oct 2021 07:19:51 GMT

Hi Robin,

thank you very much for your efforts!

I also tested the example on my board and it works as expected.
Can you tell what was the problem?

Regards,

Johannes

Re: S32k344 SPI Master Slave

AbhishekK — Tue, 11 Feb 2025 06:36:32 GMT

Hello Robin ,

I have downloaded and testing this example . and facing some error .as below

SDK PlatformSDK_S32K3_2021_08_CD01_S32K344_M7_1.0.0_PATH is not found in workspace

Kindly help me with it .

If possible Provide me Example based on latest SDK .

Thanks

Abhishek

Re: S32k344 SPI Master Slave

Robin_Shen — Tue, 11 Feb 2025 06:48:55 GMT

Hi Abhishek,

Let's discuss it in Regards Example Code Async SPI ON WB s32k344