error in "spi_sendReceive" (Arduino side)?

[aib123]

Hi there,

I was having trouble receiving SPI-messages. Checked the communication with a logic sniffer (everything as expected on the SPI-side) and I think I found the problem in the Arduino-code, function "spi_sendReceive".

After changing

...

Serial.print(SPI.transfer(command[i+6])); // this sends ASCII-characters

...

to

...

Serial.write(SPI.transfer(command[i+6])); // this sends raw hex-values

...

the correct data was sent to the PC. Am I messing something up here or was there really a bug in the code? Couldn't find any anything on the web about similar problems.

I'd be glad if someone could comment.

cheers

stefan

[Nathan_B.]

I believe you are correct.  IIRC, I found this once before but was not able to test it personally.

[LeoFish]

Thank  you!!! I did the same (Serial.write(SPI.transfer(command[i+6])); // this sends raw hex-values) & everything is all right now!!!