The interrupt function and the ADC read function can be found. The first part of the main.c defines some variables and function and includes some headers. Start conversion by setting the GO/DONE bit. #pragma config FCMEN = ON // Fail-Safe Clock Monitor Enabled bit (Fail-Safe Clock Monitor is enabled) #pragma config IESO = ON // Internal External Switchover bit (Internal External Switchover mode is enabled) #pragma config BOREN = ON // Brown-out Reset Selection bits (BOR enabled) #pragma config CPD = OFF // Data Code Protection bit (Data memory code protection is disabled) #pragma config CP = OFF // Code Protection bit (Program memory code protection is disabled) #pragma config MCLRE = ON // MCLR Pin Function Select bit (MCLR pin function is MCLR) #pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled) #pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT enabled) #pragma config FOSC = INTRCIO // Oscillator Selection bits (EC: I/O function on RA4/OSC2/CLKOUT pin, CLKIN on RA5/OSC1/CLKIN) * register to avoid read-modify-write-effect It seems for the output registers it is good to have a shadow PICkit2 programmer connected with the evaluation board and an USB-to-Serial converter: My main focus was on how difficult it is with the PIC MCUs to get serial communication working (UART), how to read out the ADCs and use the digital pins.įor the PIC16 family there are unfortunately very limited libraries available so I started to write some own UART library. Specially USB is one thing I miss in the low pin count ATMEL MCUs. * A large variety of low cost MCUs exist which have build in periphery like USB, ADC, DAC, and are provided in DIL packages. * They have a free version of C compiler XC for 8, 16 and 32 bit MCU * MicroChip has now a IDE MPLabX based on Netbeans and running on Windows, Linux and MacOS. Some years later I have now taken the starter kit again to give it a kind of second chance. Therefore I put the kit away and started with the Arduino, which is much more beginner friendly and specially has an IDE running on Linux! As a beginner it is important to get something working quickly and easily. The recommended compiler from MicroChip was an assembler compiler, not the most beginner friendly way to get started either, specially not when coming from the C/C++ corner.
There was a commercial compiler, but nothing very user friendly and free. Second there was no real C/C++ compiler available for these chips. This made it not very nice to work with this IDE, since one had to start a Windows OS. First the development IDE MPLAP was only running on Windows, and I was using mainly Linux. It turned out, that this PIC starter kit was not my thing. I had not much experience and people told me that PIC micro-controllers (MCU) are a good starting point to learn embedded system programming. Some years ago when, I started to work with microprocessor programming, I bought the PICkit2 starter kit from Microchip.
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