i imported to Atmel Studio, and successfully compiled, the sketch below, filename Sketch.cpp
Then i removed Sketch.cpp , and replaced it with the following main.c. main.c is my handwritten attempt to write the sketch in C-style.
On build, got many errors.
I'm trying this approach, because some in the forum have commented that getting all the library referenced correct in AS is very challenging.
Is there a right way to do this? -thx
sketch.cpp
/*Begining of Auto generated code by Atmel studio */
#include <Arduino.h>
/*End of auto generated code by Atmel studio */
/***************************************************
for Adafruit 16-channel PWM & Servo driver
PWM test - this will drive 16 PWMs in a 'wave'
These drivers use I2C to communicate, 2 pins are required to
interface.
****************************************************/
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>
//Beginning of Auto generated function prototypes by Atmel Studio
//End of Auto generated function prototypes by Atmel Studio
// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
// you can also call it with a different address you want
//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x41);
// you can also call it with a different address and I2C interface
//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(&Wire, 0x40);
void setup() {
Serial.begin(9600);
Serial.println("16 channel PWM test!");
pwm.begin();
pwm.setPWMFreq(1600); // This is the maximum PWM frequency
// if you want to really speed stuff up, you can go into 'fast 400khz I2C' mode
// some i2c devices dont like this so much so if you're sharing the bus, watch
// out for this!
Wire.setClock(400000);
}
void loop() {
// Drive each PWM
for (uint16_t i=0; i<4096; i += 8) {
for (uint8_t pwmnum=0; pwmnum < 16; pwmnum++) {
pwm.setPWM(pwmnum, 0, (i + (4096/16)*pwmnum) % 4096 );
}
#ifdef ESP8266
yield(); // take a breather, required for ESP8266
#endif
}
}
main.c
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>
// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
// you can also call it with a different address you want
//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x41);
// you can also call it with a different address and I2C interface
//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(&Wire, 0x40);
int main(void)
{
// Arduino "Setup"
Serial.begin(9600);
Serial.println("16 channel PWM test!");
pwm.begin();
pwm.setPWMFreq(1600); // This is the maximum PWM frequency
Wire.setClock(400000);
// Arduino "Loop"
while (1)
{
// Drive each PWM in a 'wave'
for (uint16_t i=0; i<4096; i += 8)
{
for (uint8_t pwmnum=0; pwmnum < 16; pwmnum++)
{
pwm.setPWM(pwmnum, 0, (i + (4096/16)*pwmnum) % 4096 );
}
#ifdef ESP8266
yield(); // take a breather, required for ESP8266
#endif
}
}
}
