SPI programming question

kaihsin · May 12, 2017, 2:40pm

HI all

I want to use GPIO 2~5 to be SPI master to communication with another SPI slave device.
Is there any example to show how to control the related SPI registers?
I don’t want to use Arduino to develop.

mwachs5 · May 14, 2017, 5:41am

There is no specific demo at this time, but the Arduino library is still a good reference:

github.com

sifive/cinco/blob/master/hardware/freedom_e/libraries/SPI/src/SPI.cpp

/*
 * Copyright (c) 2010 by Cristian Maglie <c.maglie@arduino.cc>
 * Copyright (c) 2014 by Paul Stoffregen <paul@pjrc.com> (Transaction API)
 * 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(uint32_t _id) :
  id(_id)
{
	// Empty
}

void SPIClass::begin() {

This file has been truncated. show original

kaihsin · May 15, 2017, 1:18am

HI Megan

Thanks for your information.
I will try it.

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SPI programming question

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