Screenshot_2024-05-11-12-43-24-703_com.adobe.reader.jpg Even with a quartz of 20MHZ 1 Cycle is allways 4/FOSC (MHz) in µS 1 Cycle time = 1/20 *4 = 4/ 20 => 0.2µS if interrupt duration takes more than 5 cycles => 1µS ... include also the call interrupt (time) and return (time) to the main programm t...

hello, Impossible to use a timer with 1µS delay with at Fosc 4MHz , 1 cycle T=FOSC/4= 1µS 1 NOP execution need 1µS so if you want a delay of 1µS, just use : _asm nop; your interrupt treatment needs more than 4µS to be executed !! or use 18F27K42 with FOSC=64Mhz by internal special hardware 24 bits ...

Surprising that no one knows how to configure the Timer0 or Timer1 to 1us

I need a 1 us timer using Timer1 or Timer0 using PiC12F675 using internal oscillator at 4 MHz. Unfortunately the Timer Calculator doesnt calculate for PIC12F.. I mofified the code from the examples on libstock, 2561_timer_interruption_of_100_ms_with_pic_12f675_pic12f675_v1.0.0.0. The best i can reac...

hexreader wrote: ↑

30 Jun 2023 16:42

can you please help me to read write custom character array to EEPROM?
viewtopic.php?f=88&t=80542&p=318319#p318319

How to read and write custom character array to EEPROM? Please guide. // [b]want to write/ read const char STR,RC,NC,NU,SQR,RU to EEPROM[/b] const char STR[] = {3,3,3,3,3,3,3,3}; const char RC[] = {31,31,3,3,3,3,31,31}; const char NC[] = {31,31,24,24,24,24,31,31}; const char NU[] = {27,27,27,27,27,2...

I have split a 32 bit long integer to 8 bits and saved to 4 locations on the EEPROM. The For loop code doesn't work, there seems to be problem with "Distance |=" but I do not know how to solve it. Please guide // PIC16F886 void read_saved_odo(){ unsigned long int Distance = 12345678; unsigned int i;...

hexreader wrote: ↑

30 Jun 2023 16:42

Ah... I think I can maybe guess what you wanted....

You want to show time past 100%?

Makes no sense to me - this is just a confusing indication in my mind, but here it is anyway...

I have checked the code in Proteus simulation, will program the pic and check it in actual hardware.

Updated code version attached See comments at top of code to see what has changed Your previous code works perfectly. I have done some changes in it to suite me. Your code if(batt_cap = 0xffff){ // is EEPROM blank? batt_cap = 18000; // if so, then default to 18 AH } I want it to be universal upto 6...

Attached is my attempt at a quick fix // status 29 June 2023 // // Only changes from original are : // 1 default to 18 AH if EEPROM is blank (as when programmed) // 2 formatting improvements // 3 timing display over-ridden with a new simpler function // // - will latewr provide a function for text ...

hexreader wrote: ↑

24 May 2023 10:41

If you want a complete answer, post your full code
I promise that nobody will want to steal this code

Here is my full code viewtopic.php?f=88&t=80057

Double post

I have modified code available in the internet to create a battery coulometer using PIC16F886 and 20x4 LCD display. All function works well, except Time remaining. All other readouts change instantly only time remaining literally works like a counter. eg. If I draw 18 amps from a 18aH battery the ba...

Found the answer

How to enable weak pull up resistor on all pins of PORTB except RB1 on PIC16F886