Johannes Stratmann / BurstSPI

Fast SPI write, added LPC812 Target

Dependents:   wsDrive

Fork of BurstSPI by Erik -

BurstSPI_LPC_X.cpp

Committer:
JojoS
Date:
2016-12-10
Revision:
15:8241b7d84ad2
Parent:
14:83e3b8ba3f43

File content as of revision 15:8241b7d84ad2:

#if (defined(TARGET_LPC1768) || defined(TARGET_LPC1114) || defined(TARGET_LPC11U24) || defined(TARGET_LPC13XX))
#include "BurstSPI.h"

void BurstSPI::fastWrite(int data) {
    //Wait until FIFO has space
    while(((_spi.spi->SR) & 0x02) == 0);
    
    //transmit data
    _spi.spi->DR = data;
    }

void BurstSPI::clearRX( void ) {
    //Do it while either data in RX buffer, or while it is busy
    while(((_spi.spi->SR) & ((1<<4) + (1<<2))) != 0) {
        //Wait until data in RX buffer
        while(((_spi.spi->SR) & (1<<2)) == 0);
        int dummy = _spi.spi->DR;
        }
}
#endif