80 lines
1.9 KiB
Arduino
80 lines
1.9 KiB
Arduino
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#include <SPI.h>
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/*
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ARDUINO ports definitions - GPIOS and ADCs
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*/
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#define RESET 8 //LDR
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#define MUX 2 //LDR
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#define PROG_MODE A2
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#define BLUE A0
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#define GREEN A1
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#define MMC_CS 10
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#define RTX_CS 9
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#define POWER 6
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#define SELECT_MODE_1 7
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#define SELECT_MODE_2 3
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#define SHT21_ADDRESS 0x40 // Direction of the sht21
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unsigned long t = 0;
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byte seq_byte = 0;
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void setup() {
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pinMode(RESET, OUTPUT);
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digitalWrite(RESET, LOW); //RESET ON
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delay(100);
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digitalWrite(RESET, HIGH); //RESET OFF
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pinMode(MUX, OUTPUT);
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digitalWrite(MUX, LOW); //NORMAL MODE
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pinMode(PROG_MODE, OUTPUT);
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digitalWrite(PROG_MODE, LOW); //PROG_MODE OFF
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pinMode(GREEN, OUTPUT);
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digitalWrite(GREEN, HIGH); //GREEN ON
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pinMode(MMC_CS, OUTPUT);
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pinMode(52, OUTPUT);
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digitalWrite(MMC_CS, HIGH); //SPI MMC NO SELECT
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pinMode(RTX_CS, OUTPUT);
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digitalWrite(RTX_CS, HIGH); //SPI RTX NO SELECT
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pinMode(POWER, OUTPUT);
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digitalWrite(POWER, HIGH); //ENABLE POWER RTX
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SPI.begin();
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Serial.begin(9600);
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Serial1.begin(9600);
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}
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void loop() {
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if (millis() > (t + 3000)) {
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//Test SPI (Arduino=Master)
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digitalWrite(RTX_CS, HIGH); //Hay que ponerlo ya que SPI.begin no lo baja
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SPI.beginTransaction(SPISettings(1000000, LSBFIRST, SPI_MODE0));
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if (seq_byte == 254) {
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seq_byte == 0;
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} else {
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seq_byte ++;
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}
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Serial.println("Datos a enviar:");
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Serial.print("->P1: "); Serial.println(seq_byte);
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Serial.print("->P2: "); Serial.println(123);
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Serial.print("->P3: "); Serial.println(100);
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byte p1 = SPI.transfer(seq_byte);
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byte p2 = SPI.transfer(123);
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byte p3 = SPI.transfer(100);
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Serial.println("Datos recibidos:");
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Serial.print("<-P1: "); Serial.println(p1);
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Serial.print("<-P2: "); Serial.println(p2);
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Serial.print("<-P3: "); Serial.println(p3);
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SPI.endTransaction();
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digitalWrite(RTX_CS, LOW);
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t = millis();
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}
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}
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