some comments and small typo for atmega328

Author: askuric

src/drivers/hardware_api.h

@@ -4,8 +4,13 @@
 #include "../common/foc_utils.h"
 #include "../common/time_utils.h"
 
+// flag returned if driver init fails
 #define SIMPLEFOC_DRIVER_INIT_FAILED ((void*)-1)
 
+// generic implementation of the hardware specific structure
+// containing all the necessary driver parameters
+// will be returned as a void pointer from the _configurexPWM functions
+// will be provided to the _writeDutyCyclexPWM() as a void pointer
 typedef struct GenericDriverParams {
   int pins[6];
   long pwm_frequency;

src/drivers/hardware_specific/atmega328_mcu.cpp

@@ -72,7 +72,7 @@ void _writeDutyCycle3PWM(float dc_a,  float dc_b, float dc_c, void* params){
 // function setting the high pwm frequency to the supplied pins
 // - Stepper motor - 4PWM setting
 // - hardware speciffic
-// supports Arudino/ATmega328
+// supports Arduino/ATmega328
 void* _configure4PWM(long pwm_frequency,const int pin1A, const int pin1B, const int pin2A, const int pin2B) {
    //  High PWM frequency
    // - always max 32kHz
@@ -128,7 +128,7 @@ int _configureComplementaryPair(int pinH, int pinL) {
 }
 
 // Configuring PWM frequency, resolution and alignment
-// - BLDC driver - 6PWM setting
+// - BLDC driver -  setting
 // - hardware specific
 // supports Arudino/ATmega328
 void* _configure6PWM(long pwm_frequency, float dead_zone, const int pinA_h, const int pinA_l,  const int pinB_h, const int pinB_l, const int pinC_h, const int pinC_l) {
@@ -140,8 +140,8 @@ void* _configure6PWM(long pwm_frequency, float dead_zone, const int pinA_h, cons
   ret_flag += _configureComplementaryPair(pinC_h, pinC_l);
   if (ret_flag!=0) return SIMPLEFOC_DRIVER_INIT_FAILED;
   GenericDriverParams* params = new GenericDriverParams {
-    .pins = { pinA_h,, pinA_l, pinB_h, pinB_l, pinC_h, pinC_l },
-    .pwm_frequency = pwm_frequency
+    .pins = { pinA_h, pinA_l, pinB_h, pinB_l, pinC_h, pinC_l },
+    .pwm_frequency = pwm_frequency,
     .dead_zone = dead_zone
   };
   return params;