Rene G. / BurstSPI

Just a fork with fix for newer mbed versions

BurstSPI_LPC_1549.cpp@15:5809125b8dac, 2021-04-18 (annotated)

Committer:
reneg973
Date:
Sun Apr 18 21:31:53 2021 +0000
Revision:
15:5809125b8dac
Parent:
12:c99022511536 
fixed LPC_1768 compiler issue and transfer problems; ; Performance:; loop SPI.write() => 138.1 ms for updating a display; loop BurstSPI.fastWrite() => 22.4 ms;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Backstrom 11:36ac5fd058dd 1 #if defined(TARGET_LPC1549)
Backstrom 11:36ac5fd058dd 2 #include "BurstSPI.h"
Backstrom 11:36ac5fd058dd 3
Backstrom 11:36ac5fd058dd 4 void BurstSPI::fastWrite(int data) {
Backstrom 11:36ac5fd058dd 5 while (!(_spi.spi->STAT & (1 << 1)));
Backstrom 11:36ac5fd058dd 6
Backstrom 11:36ac5fd058dd 7 _spi.spi->TXDAT = (data & 0xffff);
Backstrom 12:c99022511536 8 // end of transfer and receive ignore flag
Backstrom 11:36ac5fd058dd 9 _spi.spi->TXCTL |= ((1 << 20) | (1 << 22));
Backstrom 11:36ac5fd058dd 10 }
Backstrom 11:36ac5fd058dd 11
Backstrom 11:36ac5fd058dd 12 void BurstSPI::clearRX( void ) {
Backstrom 12:c99022511536 13 //We already set receive ignore flag, so this function is never run.
Backstrom 11:36ac5fd058dd 14 }
Backstrom 11:36ac5fd058dd 15
Backstrom 11:36ac5fd058dd 16 #endif