mirror of
https://github.com/Seeed-Studio/Seeed_Arduino_CAN.git
synced 2026-09-14 18:42:56 +00:00
86 lines
2.0 KiB
Arduino
86 lines
2.0 KiB
Arduino
// demo: Use RX0BF and RX1BF as digital outputs
|
|
// adlerweb, 2017-06-24
|
|
#include <SPI.h>
|
|
#include "mcp2515_can.h"
|
|
#include "mcp2518fd_can.h"
|
|
|
|
/*SAMD core*/
|
|
#ifdef ARDUINO_SAMD_VARIANT_COMPLIANCE
|
|
#define SERIAL SerialUSB
|
|
#else
|
|
#define SERIAL Serial
|
|
#endif
|
|
|
|
#define CAN_2518FD
|
|
#define SPI_CS_PIN BCM8
|
|
|
|
#ifdef CAN_2518FD
|
|
mcp2518fd CAN(SPI_CS_PIN); // Set CS pin
|
|
#endif
|
|
|
|
#ifdef CAN_2515
|
|
mcp2515_can CAN(SPI_CS_PIN); // Set CS pin
|
|
#endif
|
|
|
|
|
|
void setup() {
|
|
SERIAL.begin(115200);
|
|
|
|
#ifdef CAN_2518FD
|
|
while (0 != CAN.begin((byte)CAN_500K_1M)) { // init can bus : baudrate = 500k
|
|
#endif
|
|
#ifdef CAN_2515
|
|
while (CAN_OK != CAN.begin(CAN_500KBPS)) {
|
|
#endif // init can bus : baudrate = 500k
|
|
SERIAL.println("CAN init failed, retry");
|
|
delay(100);
|
|
}
|
|
SERIAL.println("CAN init ok");
|
|
|
|
#ifdef CAN_2518FD
|
|
if (CAN.mcpPinMode(GPIO_PIN_0, GPIO_MODE_INT)) {
|
|
#else
|
|
if (CAN.mcpPinMode(MCP_TX2RTS, MCP_PIN_IN)) {
|
|
#endif
|
|
SERIAL.println("RX0BF is now an output");
|
|
} else {
|
|
SERIAL.println("Could not switch RX0BF");
|
|
}
|
|
|
|
#ifdef CAN_2518FD
|
|
if (CAN.mcpPinMode(GPIO_PIN_1, GPIO_MODE_INT)) {
|
|
#else
|
|
if (CAN.mcpPinMode(MCP_TX2RTS, MCP_PIN_IN)) {
|
|
#endif
|
|
SERIAL.println("RX1BF is now an output");
|
|
} else {
|
|
SERIAL.println("Could not switch RX1BF");
|
|
}
|
|
}
|
|
|
|
void loop() {
|
|
SERIAL.println("10");
|
|
#ifdef CAN_2518FD
|
|
CAN.mcpDigitalWrite(GPIO_PIN_0, GPIO_HIGH);
|
|
CAN.mcpDigitalWrite(GPIO_PIN_1, GPIO_LOW);
|
|
#else
|
|
CAN.mcpDigitalWrite(MCP_RX0BF, HIGH);
|
|
CAN.mcpDigitalWrite(MCP_RX1BF, LOW);
|
|
#endif
|
|
|
|
delay(500);
|
|
SERIAL.println("01");
|
|
#ifdef CAN_2518FD
|
|
CAN.mcpDigitalWrite(GPIO_PIN_0, GPIO_LOW);
|
|
CAN.mcpDigitalWrite(GPIO_PIN_1, GPIO_HIGH);
|
|
#else
|
|
CAN.mcpDigitalWrite(MCP_RX0BF, LOW);
|
|
CAN.mcpDigitalWrite(MCP_RX1BF, HIGH);
|
|
#endif
|
|
delay(500);
|
|
}
|
|
|
|
/*********************************************************************************************************
|
|
END FILE
|
|
*********************************************************************************************************/
|