Templates for Easy PIC18 Coding
How to use the template in mikroC PRO for PIC.
Published in
4 min readNov 6, 2019
Hi, this is an auxiliary lesson for this video:
It’s simple:
Goto mikroC PRO for PIC menu Tools > Options > AutoComplete Editor and enter this codes:
keyword: configtimer
Description: Config Complete Timer and MCU Template (REV1.0)#define TRUE 1
// Timer $ Port ? byte * PRESCALE ps MODE md EDGE edge (high/low or low/high)void ConfigMCU(); // Prototype
void ConfigTimer();void ConfigMCU()
{
#ifdef P18F45K22
ANSEL? = 0; // (PIC18F45K22) R* is analog
#else
ADCON1 |= 0X0F; // (PIC18F45220) Determine if anal/digital pins
#endif
TRIS? = 0; // LED is attached to PORT?.R* BYTE
PORT? = 0;
}void ConfigTimer()
{
#ifdef P18F45K22 // (PIC18F45K22)
T$CON = 0B00000000; // Timer$ off, Prescale 1:ps , Modemd-BITS, edge
#else // (PIC18F45220)
T$CON = 0B00000000; // Timer$ off, Prescale 1:ps , Mode md-BITS, edge
#endif
TMR$H = 0X; // Initial values for accumulator registers
TMR$L = 0X;BYTE.TMR$IF = 0; // Flag cleared
BYTE.TMR$ON = 1; // Timer$ on, everything is configured, right?
}void main() {
ConfigMCU();
ConfigTimer();while (TRUE) // Do forever
{
if(BYTE.TMR$IF == 1)
{
PORT?.RD* = ~LAT?.RD*; // toggle LEDTMR$H = 0X; // Recharge default values
TMR$L = 0X;
BYTE.TMR$IF = 0; // Clear Timer$'s overflow Flag
}
}
}
Now for another coding save:
keyword: calcmen
Description: Calculation Memory for a Timer - comments (REV 1.1)/* ---------------------Calculation Memory ------------------------
Formulae: (picGenios and easyPIC v7 boards)
Machine Cycle = FOSC/4 -> 8MHz/4 -> 2MHz -> 0.5us
**************************
Formulae: @1s = 1.000.000us
OverflowTime = P_MacCycle * Prescale * (Mode_8_16bits - InitialCounter)So, for períod 1 second we have:
1.000.000us = 0.5us * ps * (65536 - ? ) //solve equation by choosing prescale (ps)
1.000.000us = 0.5us * ps * (65536 - ? )
1.000.000us / (0.5us * ps) = 65536 - X
15625 = 65536 - X
X = 65536 - 15625
X = 49911 (InitialCounter - inside two registers TMR0L e TMR0H)
Transform the number in HEX: 00 00
****************
TMR0L = 0X 00;
TMR0H = 0X 00;
****************
Tip: What is the max period for Timer0 (PIC184520 @8MHz)?
OverflowTime = 0.5us * 256 * (65536 - 0)
OverflowTime =8.388.608us ~ 8.4 segundos
*****************
Confirmation:
If 8.4s takes 65536 counts then
?s will yelds ? counts; that brings 0,?s
*****************
Good Practices: Before turn on any peripherals, please configure it first;);
in other words, in configuration mode init TM0 at later time possible;)
-----------------------------------------------------------------*/
and
keyword: ptemplate
Description:header comment for a project/*
* Project name:
|<prj_name> (<abstract>)
* Copyright:
(c) <owner, date>
* Revision History:
<versionNo> -
<change_description>
* Status:
<XX% completed.>
* Description:
<project_description>
* Test configuration:
MCU: %DEVICE%
Dev.Board: x
Oscillator: %DEVICE_CLOCK%
Ext. Modules: x
SW: %COMPILER%
* NOTES:
<all that matters>
Date: %DATE%
*/
And there you go!
This is your host, J3!
Thank you for reading this. Be welcomed!
For quick Soundcard’s configuration use this file :)
References and Credits
Soundcard Oscilloscope https://www.zeitnitz.eu/scope_en by Christian Zeitnitz
MAKE: PROJECTS Sound Card Oscilloscope
Datasheets:
PIC18F2420/2520/4420/4520 https://ww1.microchip.com/downloads/en/DeviceDoc/39631E.pdf
PIC18F2420/2520/4420/4520 https://ww1.microchip.com/downloads/en/DeviceDoc/39631E.pdf
Those templates are sufficient for ending the video’s lesson. But here goes more:)
Hint: Click n the last definition n press the button Add; this will open a blank editable definition :)
keyword: configcr
Description: Configure Control Registers for a peripherals ( Rev1.0)void configcr???|() // Specific CONTROL REGISTER(s) configuration(s) for ??? peripheral
{
???CON = 0B00000000; // SFR
}keyword: configgi
Description: Configure Global Interruption fuction (REV 1.0)void configIndividualPrf???|() // ???'s Interruptions Peripheral configurations (IF,IP & IE)
{ // See datasheet page ?
BYTE|.???IF = 0; // Overflow flag; please init zero
BYTE.???IP = 1; // Interruption priority vector: HIGH
BYTE.???IE = 1; // ???'s interruption enabled
}keyword: configip
Description: Configure Individual Peripheral Interruption vectors IF, IP IE fuction (Fire Protector Enginners) (REV 1.0)void configIndividualPrf<???|>() // ???'s Interruptions Peripheral configurations (IF,IP & IE)
{ // See datasheet page ?
BYTE.???IF = 0; // Overflow flag; please init zero
BYTE.???IP = 1; // Interruption priority vector: HIGH
BYTE.???IE = 1; // ???'s interruption enabled
}keyword: configisrh
Description: Configure ISR HIGH priority for a peripherals ( Rev1.0)void INTERRUPTION_HIGH() iv 0x0008 ics ICS_AUTO {
if (BYTE.???|IF == 1 )
{BYTE.???IF == 0;
}}keyword: confiisrlDescription: Configure ISR LOW priority for a peripherals ( Rev1.0)void INTERRUPTION_LOW() iv 0x0018 ics ICS_AUTO {
if (BYTE.???|IF == 1 )
{BYTE.???IF == 0;
}}}keyword: confiisrhDescription: Configure ISR HIGH priority for a peripherals ( Rev1.0)
void INTERRUPTION_HIGH() iv 0x0008 ics ICS_AUTO {
if (BYTE.???|IF == 1 )
{BYTE.???IF == 0;
}}
Make good use: enjoy o/
