/Designs/Measuring_instruments/RMDS01C/SW/PIC16F887/main.c
1,17 → 1,24
#include "main.h"
 
#include <string.h>
 
#define LED PIN_E1
#define CE PIN_E2
 
int16 count;
#define SEL0 PIN_E0 // external counter division ratio
#define SEL1 PIN_E1 // external counter division ratio
#define MR PIN_E2 // external counter master reset
#define CLKI PIN_C0 // internal counter input
#define BEEP PIN_C3 // buzzer
 
int8 rcv_buf[0x10]; // I2C receive buffer
int8 snd_buf[0x10]; // I2C send buffer
unsigned int32 count;
 
 
int8 buffer[0x10]; // I2C buffer
int8 address;
 
unsigned int16 of=0; // count of overflow
 
const char cmd[40]={0xB5, 0x62, 0x06, 0x31, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x32, 0x00, 0x00, 0x00, 0x80, 0x84, 0x1E, 0x00, 0xE0, 0xC8, 0x10, 0x00, 0x40, 0x42, 0x0F, 0x00, 0xA0, 0x86, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF7, 0x00, 0x00, 0x00, 0x12, 0x03};
 
#INT_SSP
31,6 → 38,8
{
buffer[0]=make8(count,0);
buffer[1]=make8(count,1);
buffer[2]=make8(count,2);
buffer[3]=make8(count,3);
}
}
if(state == 2) //Second received byte is data
45,7 → 54,55
}
 
 
#int_TIMER2 // every 10 ms
#int_EXT // Interrupt from 1PPS
void EXT_isr(void)
{
unsigned int16 countH;
unsigned int8 countL;
char countS[10], a[4], b[4], c[4]; // strings for printing results
countL=0;
countH=get_timer1(); // read internal counter
output_low(SEL0);
output_low(SEL1);
countL=input(CLKI); // read bit 0 of external counter
output_high(SEL0);
output_low(SEL1);
countL|=input(CLKI)<<1; // read bit 1 of external counter
output_low(SEL0);
output_high(SEL1);
countL|=input(CLKI)<<2; // read bit 2 of external counter
output_high(SEL0);
output_high(SEL1);
countL|=input(CLKI)<<3; // read bit 3 of external counter
 
output_low(MR); // External counter Master Reset
output_high(MR);
set_timer1(0); // Internal counter reset
count=((unsigned int32)of<<20)+((unsigned int32)countH<<4)+(unsigned int32)countL; // concatenate
 
sprintf(countS,"%09Lu", count); // engeneering values conversion
strncpy(a, countS, 3); a[3]='\0';
strncpy(b, &countS[3], 3); b[3]='\0';
strncpy(c, &countS[6], 3); c[3]='\0';
printf("%s\r\n", countS); // output to RS232
 
output_toggle(BEEP); // cvak...
 
of=0; // reset overflow counter
}
 
#int_TIMER1 // Interrupf from overflow
void TIMER1_isr(void)
{
of++;
}
 
 
/*#int_TIMER2 // every 10 ms
void TIMER2_isr(void)
{
output_low(CE);
52,7 → 109,7
count=get_timer1();
set_timer1(0);
output_high(CE);
}
}*/
 
void main()
59,7 → 116,7
{
setup_adc_ports(NO_ANALOGS|VSS_VDD);
setup_adc(ADC_OFF);
// setup_spi(SPI_SS_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
// setup_wdt(WDT_144MS);
setup_timer_1(T1_EXTERNAL|T1_DIV_BY_1);
70,32 → 127,24
delay_ms(1000);
int n;
for (n=0;n<40;n++)
{
putc(cmd[n]);
}
for (n=0;n<40;n++) putc(cmd[n]); // setup GPS
 
printf("cvak...\r\n");
// snd_buf[2]=0x55;
// snd_buf[3]=0xAA;
set_timer1(0);
ext_int_edge( L_TO_H ); // set 1PPS active edge
enable_interrupts(INT_TIMER1);
enable_interrupts(INT_EXT);
enable_interrupts(INT_SSP);
// enable_interrupts(INT_TIMER2);
enable_interrupts(GLOBAL);
 
while(true)
{
output_high(LED);
output_low(LED);
set_timer1(0);
output_high(CE);
delay_ms(999);
delay_us(966);
output_low(CE);
count=get_timer1();
printf("count: %Lu %X %X %X %X\r\n",count, buffer[0],buffer[1],buffer[2],buffer[3]);
{
/* output_high(LED);
delay_ms(999);
output_low(LED);
delay_ms(999);
printf("%X %X %X %X\r\n", buffer[0],buffer[1],buffer[2],buffer[3]);
*/
}
}