1 C Programming for Embedded Systems. Data RAM Pointer Types ...

P. Klimo Sep 2010
CODE
/* File: 7SegDisplay_1D.c
Description:
Displays a digit on single 7-segment display. Segments connected to PORTD ( segment A to RD0, segment B to
RD1, etc); Common cathode is connected to the pin RA1 on PORTA. Incremented every 1s.
* Test configuration: MCU: P16F877A Dev.Board: EasyPIC4
Xtal: HS, 8 MHz SW: PICC.0 */
#include /* HI-tech compiler definitions */
/* PIC configuration: HS oscillator, Watch Dog Timer off, Browning Effect off, Low Voltage Mode off */
__CONFIG(HS&WDTDIS&PWRTDIS& BORDIS&LVPDIS ); // HiTec Pragmas
void Delay_ms(int ms);
unsigned short SendCode(unsigned short num);
unsigned short count;
// Delay routine
// Convert binary to seven segment code
// Display value
void main()
{ // Initialize Ports
PORTA = 0;
TRISA = 0xfd;
PORTD = 0;
TRISD = 0;
// Configure bit 1 of Port A as output
// by clearing bit 1 in the TRISA register
// Configure all bits of Port D as outputs
// by clearing the TRISD register
do { // Proceed incrementing the displayed digit from 0 to 9
for (count = 0; count