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#include <SPI.h>
#define SS_PIN 10
#define BAUD_RATE 19200
#define CHAR_BUF 128
void setup() {
pinMode(SS_PIN, OUTPUT);
Serial.begin(BAUD_RATE);
SPI.begin();
SPI.setBitOrder(MSBFIRST);
SPI.setClockDivider(SPI_CLOCK_DIV16);
SPI.setDataMode(SPI_MODE0);
delay(1000); // Give the OpenMV Cam time to bootup.
}
void loop() {
int32_t len = 0;
char buff[CHAR_BUF] = {0};
digitalWrite(SS_PIN, LOW);
delay(1); // Give the OpenMV Cam some time to setup to send data.
if(SPI.transfer(1) == 85) { // saw sync char?
SPI.transfer(&len, 4); // get length
if (len) {
SPI.transfer(&buff, min(len, CHAR_BUF));
len -= min(len, CHAR_BUF);
}
while (len--) SPI.transfer(0); // eat any remaining bytes
}
digitalWrite(SS_PIN, HIGH);
Serial.print(buff);
delay(1); // Don't loop to quickly.
}
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