adding Zig examples

EXAMPLES_C++/jetgpio_PWM_example.cpp

@@ -39,8 +39,7 @@ int main(int argc, char *argv[])
       /* PWM frequency set up okay*/
       printf("PWM frequency set up okay at pin 32. Return code:  %d\n", PWMstat);
     }
-/* Set up PWM duty cycle to approx 50% (0=0% to 256=100%) @ pin 32*/
-
+  /* Set up PWM duty cycle to approx 50% (0=0% to 256=100%) @ pin 32*/
   int PWMstat2 = gpioPWM(32, 127);
 
   if (PWMstat2 < 0)
@@ -61,7 +60,7 @@ int main(int argc, char *argv[])
     sleep(2);
     x++;
   }
-// Terminating library 
+  // Terminating library 
   gpioTerminate();
   printf("PWM stopped, bye!\n");
   exit(0);

EXAMPLES_C++/jetgpio_edge.cpp

@@ -63,7 +63,7 @@ int main(int argc, char *argv[])
       printf("gpio setting up okay. Return code:  %d\n", stat);
     }
 
-// Now setting up pin 3 to detect edges, rising & falling edge with a 1000 useconds debouncing and when event is detected calling func "calling"
+  // Now setting up pin 3 to detect edges, rising & falling edge with a 1000 useconds debouncing and when event is detected calling func "calling"
   int stat2 = gpioSetISRFunc(3, EITHER_EDGE, 1000, &timestamp, &calling);
   if (stat2 < 0)
     {
@@ -77,13 +77,13 @@ int main(int argc, char *argv[])
       printf("gpio edge setting up okay. Return code:  %d\n", stat2);
     }
 
-/* Now wait for the edge to be detected */
+  /* Now wait for the edge to be detected */
   printf("Capturing edges, press Ctrl-c to terminate\n");
   while (interrupt) {
     // Do some stuff
     sleep(1);
   }
-// Terminating library
+  // Terminating library
   gpioTerminate();
   exit(0);
 }

EXAMPLES_C++/jetgpio_example.cpp

@@ -24,8 +24,7 @@ int main(int argc, char *argv[])
       printf("Jetgpio initialisation OK. Return code:  %d\n", Init);
     }	
 
-// Setting up pin 3 as OUTPUT and 7 as INPUT
-
+  // Setting up pin 3 as OUTPUT and 7 as INPUT
   int stat1 = gpioSetMode(3, JET_OUTPUT);
   if (stat1 < 0)
     {
@@ -52,8 +51,7 @@ int main(int argc, char *argv[])
       printf("gpio setting up okay. Return code:  %d\n", stat2);
     }
 
-// Writing 1 and 0 to pin 3 at 1 second intervals while reading pin 7
-
+  // Writing 1 and 0 to pin 3 at 1 second intervals while reading pin 7
   int x =0;
   int level = 0;
   while (x<5) {
@@ -70,7 +68,7 @@ int main(int argc, char *argv[])
     x++;
   }
 
-// Terminating library 
+  // Terminating library 
   gpioTerminate();
 
   exit(0);

EXAMPLES_C++/jetgpio_i2c_example.cpp

@@ -46,7 +46,7 @@ int main(int argc, char *argv[])
       printf("Jetgpio initialisation OK. Return code:  %d\n", Init);
     }	
 
-/* Opening the connection to the I2C slave MPU6050 */
+  /* Opening the connection to the I2C slave MPU6050 */
   int MPU6050 = i2cOpen(0,0);
 
   if (MPU6050 >=  0)
@@ -61,17 +61,17 @@ int main(int argc, char *argv[])
       printf("Open I2C port failed. Quitting MPU6050 Error code:  %d\n", MPU6050);
     }
 
-/* Wake up the MPU-6050 with slave address 0x68 since it starts in sleep mode */
+  /* Wake up the MPU-6050 with slave address 0x68 since it starts in sleep mode */
   int writestat = i2cWriteByteData(MPU6050, MPU6050_SLAVE_ADDRESS, PWR_MGMT_1, 0x00); 
   printf("write return: %d\n",writestat);
   usleep(100000);  
 
-/* Now set up the accelerator  range to 4G */
+  /* Now set up the accelerator  range to 4G */
   writestat = i2cWriteByteData(MPU6050, MPU6050_SLAVE_ADDRESS, ACCEL_CONFIG, ACCEL_RANGE_4G); 
   printf("write return: %d\n",writestat);
   usleep(100000);
 
-/* Now set up the gyroscope  range to 250 deg/second */
+  /* Now set up the gyroscope  range to 250 deg/second */
   writestat = i2cWriteByteData(MPU6050, MPU6050_SLAVE_ADDRESS, GYRO_CONFIG, GYRO_RANGE_250DEG);
   printf("write return: %d\n",writestat);
   usleep(100000);
@@ -117,7 +117,7 @@ int main(int argc, char *argv[])
     x++;
   }
 
-/* Closing i2c connection */
+  /* Closing i2c connection */
   int i2cstat = i2cClose(MPU6050);
 
   if (i2cstat >=  0)
@@ -131,7 +131,7 @@ int main(int argc, char *argv[])
       printf("Closing I2C port failed. Quitting MPU6050 thread Error code:  %d\n", i2cstat);
     }
 
-/* Terminating library */
+  /* Terminating library */
   gpioTerminate();
   exit(0);
 

EXAMPLES_C++/lcd_i2c.cpp

@@ -105,11 +105,9 @@ int main(int argc, char *argv[]){
   }
 
   // Closing i2c connection
-
   i2cClose(lcd);
 
   // Terminating library
-
   gpioTerminate();
 
   exit(0);

EXAMPLES_C++/spi_loop.cpp

@@ -28,13 +28,12 @@ int main(int argc, char *argv[])
       printf("Jetgpio initialisation OK. Return code:  %d\n", Init);
     }
 
-/* Port SPI2 pins: 37, 22, 13 & 18
-   to perform a simple loop test, pins 22: SPI2_MISO & 37:SPI2_MOSI should be connected
-   with a short jumper cable, when the cable is disconnected the output on screen will show
-   all the rx values as zeros 
-   spiOpen() parameters go as follows: spiOpen(port number, speed in Hz, mode, cs pin delay in us, 
-   bits per word, least significant bit first, cs change)
-*/
+  /* Port SPI2 pins: 37, 22, 13 & 18
+     to perform a simple loop test, pins 22: SPI2_MISO & 37:SPI2_MOSI should be connected
+     with a short jumper cable, when the cable is disconnected the output on screen will show all the rx values as zeros 
+     spiOpen() parameters go as follows: spiOpen(port number, speed in Hz, mode, cs pin delay in us, 
+     bits per word, least significant bit first, cs change)
+  */
 
   SPI_init = spiOpen(1, 5000000, 0, 0, 8, 1, 1);
   if (SPI_init < 0)
@@ -57,8 +56,7 @@ int main(int argc, char *argv[])
   tx[5] = 0xFF;
   tx[6] = 0x11;
 
-//Transfer data through register numbers for x, y & z axis
-
+  //Transfer data through register numbers for x, y & z axis
   int i = 0;
   while (i<20){
 
@@ -96,10 +94,10 @@ int main(int argc, char *argv[])
     sleep(1);
   }
 
-// Closing spi port
+  // Closing spi port
   spiClose(SPI_init);
 
-// Terminating library
+  // Terminating library
   gpioTerminate();
 
   exit(0);

EXAMPLES_C++/test_PWM.cpp

@@ -47,8 +47,7 @@ int main(int argc, char *argv[])
 
   int level = 0;
 
-// Increase brightness 
-
+  // Increase brightness 
   while (x<=256) {
 
     usleep(100000);
@@ -67,8 +66,8 @@ int main(int argc, char *argv[])
   }
 
   x = 256;
-// Decrease brightness
 
+  // Decrease brightness
   while (x>=0) {
 
     usleep(100000);

EXAMPLES_C/jetgpio_example.c

@@ -54,8 +54,7 @@ int main(int argc, char *argv[])
       printf("gpio setting up okay. Return code:  %d\n", stat2);
     }
 
-  // Writing 1 and 0 to pin 3 a 1 second intervals while reading pin 7
-
+  // Writing 1 and 0 to pin 3 a 1 second intervals while reading pin 7 
   int x =0;
   int level = 0;
   while (x<5) {

EXAMPLES_C/test_PWM.c

@@ -50,7 +50,6 @@ int main(int argc, char *argv[])
   int level = 0;
 
   // Increase brightness 
-
   while (x<=256) {
 
     usleep(100000);
@@ -69,8 +68,8 @@ int main(int argc, char *argv[])
   }
 
   x = 256;
+
   // Decrease brightness 
-
   while (x>=0) {
 
     usleep(100000);