[SOLVED] How to write a long integer to timer1

[ADGAN]

Hello everybody! I would like to know how to right a long integer value to timer1 of PIC16F887 which is stored in the EEPROM. I know how to read & write long integer values from the EEPROM. This is how I read the timer1 and save it as a long integer.

pulses = (count*65535)+ (TMR1H<<8 | TMR1L);

I know how to retrieve values for TMR1H & TMR1L but I don't know how to get the value for count variable.

 

[jayanth.devarayanadurga]

---

Code C - [expand]
1
2
3
4
5
if eeprom address 0x00 contains high byte and address 0x01 contains low byte then you can use the below code.
 
[syntax=c]
TMR1H = EEPROM_Read(0x00);
TMR1L = EEPROM_Read(0x01);

---

 

[ADGAN]

The low byte is at 00, hi byte at 01, higher byte at 02 and highest byte at 03. But the problem is 'pulses' variable is 32bit and timer1 is 16bit. I know how to retrieve the values for TMR1L and TMR1H but what I don't know is how to retrieve the value for count( count represents no of interrupts).

 

[jayanth.devarayanadurga]

Two methods to retrieve long type.

---

Code C - [expand]
1
2
3
4
5
6
7
8
9
Lo(count) = EEPROM_Read(0x00);
Hi(count) = EEPROM_Read(0x01);
Higher(count) = EEPROM_Read(0x02);
Highest(count) = EEPROM_Read(0x03);
 
count = EEPROM_Read(0x00);
count |= EEPROM_Read(0x01) << 8;
count |= EEPROM_Read(0x02) << 16;
count |= EEPROM_Read(0x03) << 24;

---

 

[ADGAN]

Thanks for the reply, I found a much simpler method.

 

[jayanth.devarayanadurga]

And what is that?

 

[ADGAN]

Without writing TMR1L, TMR1H, count into one variable and saving it in the EEPROM, separately writing TMR1L, TMR1H and count to the EEPROM.