Matrix user forums

Hy I have a HP488 development board with PIC16F88 mcu. I try to make a program who count from 0 to 9999 with a delay using Timer TMR0. My problem is I am not able to make this work. The program must do the next tasks : count from 0 to 9 --> digit 3 and when it reaches 9 must enable digit 2. If the c...

Hi all. I am a beginner in Pic microcontroller. I bought a development board from Matrix Multimedia, HP488, but I don't know why I fail with a small program. The program must flash a led with a delay (4 sec) using TMR0. So, from my calculations, using formula : Freq. out = Freq. osc / [prescaler * (...

Hy. I am beginner in microcontroller programming and i need some advice. First i bought a development board HP488 from MatrixMultimedia. This board has a pic microcontroller namely PIC17F88 - with 16 I/O pins. Can somebody explain me what means Pull-up (PORTB Pull-up Enable bit - option_reg bit 7 ) ...