summaryrefslogtreecommitdiff
path: root/CODE/debug/comm/spi/arduino_spi_master/arduino_spi_master.ino
diff options
context:
space:
mode:
Diffstat (limited to 'CODE/debug/comm/spi/arduino_spi_master/arduino_spi_master.ino')
-rw-r--r--CODE/debug/comm/spi/arduino_spi_master/arduino_spi_master.ino34
1 files changed, 34 insertions, 0 deletions
diff --git a/CODE/debug/comm/spi/arduino_spi_master/arduino_spi_master.ino b/CODE/debug/comm/spi/arduino_spi_master/arduino_spi_master.ino
new file mode 100644
index 0000000..248ef0f
--- /dev/null
+++ b/CODE/debug/comm/spi/arduino_spi_master/arduino_spi_master.ino
@@ -0,0 +1,34 @@
+#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.
+} \ No newline at end of file