[CANBus]
描述
Function to read data from the CAN FIFO buffer.
語法
CAN.read()
參數
None
回傳
When there are data in the FIFO buffer, return 1 byte of data.
When there is no data in the FIFO, return -1.
範例
#include <CANBus.h>
unsigned char ch;
void setup() {
Serial.begin(115200);
CAN.begin(CAN_500KBPS);
}
void loop() {
if (CAN.requestFrom() > 0) // Check to see whether data is received.
{
while (CAN.available() > 0) // Check to see whether there are data in the FIFO
{
ch = CAN.read(); // Read data from FIFO
Serial.print(ch); // Output data value
Serial.print("\t");
}
Serial.println();
}
}參考
函式庫參考主頁面
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