8 years ago.  This question has been closed. Reason: Unclear question

"__rbit" function is not able to use at LPC1114FN28

Hi. I'm Ko_hei from Japan. I am terribly sorry for the poor English writing.

I'd like to use SPI mode at LPC1114FN28. In order to use Play Station Controller at SPI interface, output signal must be bit-reversed. However, I got errors "_rbit is undefined" at compile time. A similar error when using the "Nucleo STM32F446RE" did not occur.

Is this would be the LPC1114FN28's specific issues?

I made this program to reference. https://developer.mbed.org/users/okini3939/code/PS_PAD/file/840370e1dcce/PS_PAD.cpp

Thanks.