Arduino for STM32

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/*
   bluepill specific version that works
    http://stm32duino.com/viewtopic.php?f=13&t=6&start=40
    Sketch uses 16,804 bytes (13%) of program storage space. Maximum is 122,880 bytes.
    Global variables use 3,024 bytes of dynamic memory.
*/

#include <SoftSerialIntCC.h>
#define LED_BUILTIN 13

SoftSerialInt softserial1(PB7, PB6, 4);
SoftSerialInt softserial2(PA1, PA0, 2);

void setup()
{
  // set the data rate for the SoftwareSerial port
  softserial1.begin(115200);
  softserial2.begin(9600);
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, HIGH);
}

void loop() // run over and over
{
  softserial1.println("Type away");
  while (1) {
    if ( softserial1.available() ) {
      digitalWrite(LED_BUILTIN, LOW);
      int c = softserial1.read();
      softserial2.write((uint8_t)c);
      softserial1.write((uint8_t)c);
      digitalWrite(LED_BUILTIN, HIGH);
    }
  }
}

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// see: http://stm32duino.com/viewtopic.php?f=3&t=3087&start=10#p39770
/*  IDE 1.8.5
Sketch uses 20136 bytes (16%) of program storage space. Maximum is 122880 bytes.
Global variables use 2952 bytes (14%) of dynamic memory, leaving 17528 bytes for local variables. Maximum is 20480 bytes.
 */
#include <TinyGPS.h>
#include <Arduino.h>
// -----------------gps
TinyGPS gps;
#define ss3 Serial2
static const uint32_t GPSBaud = 9600;
// -----------------gps

void setup()
{
  Serial.begin(9600);
  ss3.begin(GPSBaud);
}
uint32_t time;
void loop()
{
  if ( (millis() - time) < 1000 )
  {
    if (ss3.available())
    {
      char c = ss3.read();
      Serial.write(c); // monitor the data from GPS on PC
      gps.encode(c);
    }
    float flat, flon;
    unsigned long age;
    gps.f_get_position(&flat, &flon, &age);
    Serial.print("LAT=");
    Serial.print(flat == TinyGPS::GPS_INVALID_F_ANGLE ? 0.0 : flat, 6);
    Serial.print(" LON=");
    Serial.print(flon == TinyGPS::GPS_INVALID_F_ANGLE ? 0.0 : flon, 6);
    Serial.print(" SAT=");
    Serial.print(gps.satellites() == TinyGPS::GPS_INVALID_SATELLITES ? 0 : gps.satellites());
    Serial.print(" PREC=");
    Serial.print(gps.hdop() == TinyGPS::GPS_INVALID_HDOP ? 0 : gps.hdop());
  }
}

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void Setup() {
	Serial1.begin(115200);
}

Code: Select all

void setup() {
	Serial.begin(); // This one is usb - serial
	Serial1.begin(9600); //this goes to the gps
}

uint32_t gpsbaud = 9600;

void loop() {
	Serial.print("gpsbaud:");
	Serial.println(gpsbaud);
	Serial1.begin(gpsbaud);
	uint32_t start = millis();
	while(millis() - start < 10000) { //probe for 10 secs
		if (Serial1.available()) 
			while(Serial1.available()) { //print out whatever is received from gps to usb
				int8_t c = Serial1.read();
				Serial.print(c);
			}
		delay(1);
	}
	Serial.println();
	gpsbaud += 1200;
	if(gpsbaud > 1000000) while(1); //loop forever	
}