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Seeed_Arduino_CAN/examples/gpioWrite/gpioWrite.ino
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54 lines
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Arduino

// demo: Use RX0BF and RX1BF as digital outputs
// adlerweb, 2017-06-24
#include <SPI.h>
#include "mcp_can.h"
/*SAMD core*/
#ifdef ARDUINO_SAMD_VARIANT_COMPLIANCE
#define SERIAL SerialUSB
#else
#define SERIAL Serial
#endif
#define SPI_CS_PIN 10
MCP_CAN CAN(SPI_CS_PIN); // Set CS pin
void setup() {
SERIAL.begin(115200);
while (CAN_OK != CAN.begin(CAN_500KBPS)) { // init can bus : baudrate = 500k
SERIAL.println("CAN init failed, retry");
delay(100);
}
SERIAL.println("CAN init ok");
if (CAN.mcpPinMode(MCP_RX0BF, MCP_PIN_OUT)) {
SERIAL.println("RX0BF is now an output");
} else {
SERIAL.println("Could not switch RX0BF");
}
if (CAN.mcpPinMode(MCP_RX1BF, MCP_PIN_OUT)) {
SERIAL.println("RX1BF is now an output");
} else {
SERIAL.println("Could not switch RX1BF");
}
}
void loop() {
SERIAL.println("10");
CAN.mcpDigitalWrite(MCP_RX0BF, HIGH);
CAN.mcpDigitalWrite(MCP_RX1BF, LOW);
delay(500);
SERIAL.println("01");
CAN.mcpDigitalWrite(MCP_RX0BF, LOW);
CAN.mcpDigitalWrite(MCP_RX1BF, HIGH);
delay(500);
}
/*********************************************************************************************************
END FILE
*********************************************************************************************************/