AWR1843AOP: [SPI_Module] SyncTransmit Request

Hi Beomjin,

1) Let me check for the 1st point.

2) This is as per Autosar MCAL spec, please refer to the Autosar MCAL spec for the details.

3) Since the device is LE, the buffer is also LE, it is not possible to change it to BE.

Regards,

Ajay

Hello Ajay,

1) Yes, after your check, let me know.

2) So, is the unit byte? Can you check it, too?

If it is not byte, do I have to change method that I Setup EB? Can you check the method? When I set Data length 1 and transmit EB, it works properly.

3) I got it Thank you.

Regards,

Beomjin.

Can I get replied?

Hi Beomjin,

Sorry for the delay.

1) The Spec only specifies that the data needs to be put in the Rx EB buffer before sync transmit returns, it does not matter whether its interrupt context or not.

 2) This is in bits

Regards,

Ajay

Hi Ajay

What I asked you was not the concept of SPI module's sync transmit.

Because I knew the concept, I asked you to check the module supports sync transmit.

I used configured SPI module to use sync transmit. When it comes to call sync transmit(in my case, interrupt context), it doesn't return RX EB buffer before the function returns.

Please check the SPI module for 1843AOP supplies SyncTransmit.

If it does, please check the module's operation. If you need to send fixed-module, please conatact me.

Thank you,

Beomjin. 

Also, If I set the length 8(Because my external module that  use SPI communicates in 8 bits), It doesn't work properly. If I set it 1, it work properly with LE.

Please check it too.

Hi Beomjin,

Let me try to reproduce this at my end and get back early next week.

Regards,

Ajay

Hi Ajay,

Can I get your reply??

Regards,

Beomjin.