mirror of
https://github.com/arduino/Arduino.git
synced 2025-01-20 09:52:13 +01:00
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
/*
|
|
* Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
|
|
* SPI Master library for arduino.
|
|
*
|
|
* This file is free software; you can redistribute it and/or modify
|
|
* it under the terms of either the GNU General Public License version 2
|
|
* or the GNU Lesser General Public License version 2.1, both as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include "SPI.h"
|
|
|
|
SPIClass::SPIClass(Spi *_spi, uint32_t _id) : spi(_spi), id(_id) {
|
|
// Empty
|
|
}
|
|
|
|
void SPIClass::begin() {
|
|
// Set CS on NPCS3
|
|
SPI_Configure(spi, id, SPI_MR_MSTR | SPI_MR_PS | SPI_MR_PCS(0x07));
|
|
SPI_Enable( spi);
|
|
setClockDivider(1);
|
|
}
|
|
|
|
void SPIClass::end() {
|
|
SPI_Disable( spi);
|
|
}
|
|
|
|
void SPIClass::setBitOrder(uint8_t bitOrder) {
|
|
// Not supported
|
|
}
|
|
|
|
void SPIClass::setDataMode(uint8_t _mode) {
|
|
mode = _mode;
|
|
SPI_ConfigureNPCS(spi, 3, mode | SPI_CSR_SCBR(divider));
|
|
}
|
|
|
|
void SPIClass::setClockDivider(uint8_t _divider) {
|
|
divider = _divider;
|
|
SPI_ConfigureNPCS(spi, 3, mode | SPI_CSR_SCBR(divider));
|
|
}
|
|
|
|
byte SPIClass::transfer(byte _data) {
|
|
SPI_Write(spi, 0, _data);
|
|
return SPI_Read(spi);
|
|
}
|
|
|
|
void SPIClass::attachInterrupt(void) {
|
|
// Should be enableInterrupt()
|
|
}
|
|
|
|
void SPIClass::detachInterrupt(void) {
|
|
// Should be disableInterrupt()
|
|
}
|
|
|
|
#if SPI_INTERFACES_COUNT > 0
|
|
SPIClass SPI0(SPI_INTERFACE, SPI_INTERFACE_ID);
|
|
#endif
|