/* *****************************************************************************
 * The MIT License
 *
 * Copyright (c) 2010 LeafLabs LLC.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * ****************************************************************************/

/**
 *  @brief Sample main.cpp file. Sends "Hello world!" out SPI1.
 *
 *  SPI1 is set up to be a master transmitter at 4.5MHz, little endianness,
 *  and SPI mode 0.
 *
 *  Pin 10 is used as Chip Select
 *
 */

#include "wirish.h"

#define CS      10

byte buf[] = "Hello world!";

HardwareSPI spi1(1);

void setup() {
   /* Set up chip select as output  */
   pinMode(CS, OUTPUT);

   /* CS is usually active low, so initialize it high  */
   digitalWrite(CS, HIGH);

   /* Initialize SPI   */
   spi1.begin(SPI_4_5MHZ, LSBFIRST, 0);
}

void loop() {
   /* Send message  */
   digitalWrite(CS, LOW);
   spi1.send(buf, sizeof buf);
   digitalWrite(CS,HIGH);
   delay(1000);
}

// Force init to be called *first*, i.e. before static object allocation.
// Otherwise, statically allocated objects that need libmaple may fail.
__attribute__((constructor)) void premain() {
    init();
}

int main(void) {
    setup();

    while (1) {
        loop();
    }
    return 0;
}