Today I finish the "Blinky LED" application on PIC32MZ starter kit. This application let LED1 blink with 0.5HZ frequency. The pseudo code is like LOOP: LED ON Delay second LED OFF Delay second It uses Timer1 to control the delay time. So first I…

In my older blog "PIC32MZ tutorial -- Key Debounce", I shows how to acheive key debounce with port polling. At this moment, I write an application which uses External Interrupt.  Therefore, only generates interrupt and starts debounce when the f…

In my previous blog "PIC32MZ tutorial -- Output Compare", I shows how to apply Output Compare without interrupt to generate PWM signal. I also tried the Output Compare interrupt. I selected OC to be PWM mode without fault pin (OCM = "110&qu…

Output Compare is a powerful feature of embedded world. The PIC32 Output Compare module compares the values stored in the OCxR and/or the OCxRS registers to the value in the selected timer. When a match occurs, the Output Compare module generates an…

In my last post I implement "Key Debounce" with port polling, port polling is not very efficient. And this time, I will use change notification instead of port polling. It generates interrupt and starts debounce when the level of digital port ch…

Today I accomplish a application on PIC32MZ EC Starter Kit. The feature of application is to light up LED when key released and put out LED when key pressed. LED is  the Starter Kit LED1 connecting to RH0. Key is the Starter Kit push button SW1 conne…

An interrupt is an internal or external event that requires quick attention from the controller. The PIC32MZ architecture provides a rich interrupt system that can manage up to 190 sources of interrupts. Each interrupt source can have a unique piece…

Today I implement "Hello World" on PIC32MZ EC starter kit. The application of "Hello World" only lights up a LED. There are three LEDs on the starter kit board -- LED1 and LED2 and LED3.  At the moment, I only light LED1 on RH0. Every…

At this moment, I accomplish the interface of UART communication for PIC32MZ EC Starter Kit. This interface configures the PIC32MZ for communication with a host PC at 115200 baud. There are five functions in the interface -- Uart_Init(), Uart_Getc(),…

Watchdog is a very necessary module for embedded system. Someone said that embedded system operates without watchdog enabled just like the car without air bag. You should always enabled watchdog as possible as you can. The PIC32MZ Watchdog Timer (WDT…