diff options
Diffstat (limited to 'examples/spi_master.cpp')
-rw-r--r-- | examples/spi_master.cpp | 65 |
1 files changed, 33 insertions, 32 deletions
diff --git a/examples/spi_master.cpp b/examples/spi_master.cpp index 06cad02..af3e709 100644 --- a/examples/spi_master.cpp +++ b/examples/spi_master.cpp @@ -1,61 +1,62 @@ -/* *****************************************************************************
+/******************************************************************************
* 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
+ * 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 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.
- * ****************************************************************************/
+ * 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.
+ * @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
+ * SPI1 is set up to be a master transmitter at 4.5MHz, little
+ * endianness, and SPI mode 0.
*
+ * Pin 10 is used as slave select.
*/
#include "wirish.h"
-#define CS 10
+#define NSS 10
byte buf[] = "Hello world!";
HardwareSPI spi1(1);
void setup() {
- /* Set up chip select as output */
- pinMode(CS, OUTPUT);
+ /* Set up chip select as output */
+ pinMode(NSS, OUTPUT);
- /* CS is usually active low, so initialize it high */
- digitalWrite(CS, HIGH);
+ /* NSS is usually active LOW, so initialize it HIGH */
+ digitalWrite(NSS, HIGH);
- /* Initialize SPI */
+ /* Initialize SPI */
spi1.begin(SPI_4_5MHZ, LSBFIRST, 0);
}
void loop() {
- /* Send message */
- digitalWrite(CS, LOW);
- spi1.send(buf, sizeof buf);
- digitalWrite(CS,HIGH);
+ /* Send message */
+ digitalWrite(NSS, LOW);
+ spi1.write(buf, sizeof buf);
+ digitalWrite(NSS, HIGH);
delay(1000);
}
@@ -68,7 +69,7 @@ __attribute__((constructor)) void premain() { int main(void) {
setup();
- while (1) {
+ while (true) {
loop();
}
return 0;
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