Reset doesent seem to be working depsite what ever I set MCLRE in config file to on 12F675

Good Evening all  

I  hope all  are all in good  health

You will have to excuse me  for being somewhat  possibly non understanding of how this all works as yet I'm still testing  this  rigorously and getting used to this


Previously my own error and having found out  it was I that made mistake  on last  query   , now corrected and   solved,  I decided to still check all functionality having got that all working  thus far

How ever  reset  doesn't seem to work or perhaps me again who knows the previous had me pulling my hair out for  hours  The importance of naming folders  differently   with one letter  difference  I have thus  learnt  

Never mind ,  moving on and forward   I have  double checked , treble checked recompiled and recorded this for  you

Any ideas appreciated

Many thanks mark

I  embed two sections of  code


With MCLRE set to on

Code:


/*
 * File:   main.c
 * Author: mark david harrington
 *
 * Created changed 12 October 2020, 13:37
 */
// PIC12F675 Configuration Bit Settings

// 'C' source line config statements

// CONFIG
#pragma config FOSC = INTRCIO   // Oscillator Selection bits (INTOSC oscillator: I/O function on GP4/OSC2/CLKOUT pin, I/O function on GP5/OSC1/CLKIN)
#pragma config WDTE = OFF       // Watchdog Timer Enable bit (WDT disabled)
#pragma config PWRTE = OFF      // Power-Up Timer Enable bit (PWRT disabled)
#pragma config MCLRE = ON       // GP3/MCLR pin function select (GP3/MCLR pin function is MCLR)
#pragma config BOREN = OFF      // Brown-out Detect Enable bit (BOD disabled)
#pragma config CP = OFF         // Code Protection bit (Program Memory code protection is disabled)
#pragma config CPD = OFF        // Data Code Protection bit (Data memory code protection is disabled)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.

#include <xc.h>

// lets recompile
#define _XTAL_FREQ 4000000

#define LED GPIObits.GP5// this is where I define the port   for output
// I dont have to do anything more at this stage  gpio4  should now be output  and flash led */
// I recompile



void InitPic (void);

void main(void)
{
    
    /* PICMicro initialization */
    InitPic();
    
    // Here is the 5 second delay before this starts  so at reset we should see
    // led stop flashing with another 5 second delay before starting  but we dont
    // In fact this  should not work
    
    
    __delay_ms(5000) ;
    /* Never ending cycle...*/
    while(1)
    {
       /*led  is  defined as above LED GPIObits.GP5  Now I will change this  above */
        
        LED^=1;             /* LED alternate ON and OFF / invert  this  value when looping */
        __delay_ms(200);    /* delay macro (200ms)  simple delay */
    }

}

void InitPic (void)
{
/* I/O port configuration */
    GPIO  =  0x00; // clear port down

#ifdef _PIC12F675_H_
    CMCON =  0x07;      /* Disable comparators Correct */
#endif
    
    
    ANSEL =  0x00;      /* Disable A/D module  Correct */
    TRISIO = 0x00;      /* All output is set as OUTPUT  also Correct */
    WPU = 0;            /* Disable all internal pull-ups  Correct again */
    OPTION_REG = 0x80;  /* Disable internal pull-ups global */
    
    /*Option_REG  is  ad follows GPPU: GPIO Pull-up  
     * Enable bit1 = GPIO pull-ups are disabled 0
     * = GPIO pull-ups are enabled by individual port latch values */
}




With MCLRE set to off

Code:


/*
 * File:   main.c
 * Author: mark david harrington
 *
 * Created changed 12 October 2020, 13:37
 */
// PIC12F675 Configuration Bit Settings

// 'C' source line config statements

// CONFIG
#pragma config FOSC = INTRCIO   // Oscillator Selection bits (INTOSC oscillator: I/O function on GP4/OSC2/CLKOUT pin, I/O function on GP5/OSC1/CLKIN)
#pragma config WDTE = OFF       // Watchdog Timer Enable bit (WDT disabled)
#pragma config PWRTE = OFF      // Power-Up Timer Enable bit (PWRT disabled)
#pragma config MCLRE = OFF       // GP3/MCLR intrenally tied to VDD
#pragma config BOREN = OFF      // Brown-out Detect Enable bit (BOD disabled)
#pragma config CP = OFF         // Code Protection bit (Program Memory code protection is disabled)
#pragma config CPD = OFF        // Data Code Protection bit (Data memory code protection is disabled)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.

#include <xc.h>

// lets recompile
#define _XTAL_FREQ 4000000

#define LED GPIObits.GP5// this is where I define the port   for output
// I dont have to do anything more at this stage  gpio4  should now be output  and flash led */
// I recompile



void InitPic (void);

void main(void)
{
    
    /* PICMicro initialization */
    InitPic();
    
    // Here is the 5 second delay before this starts  so at reset we should see
    // led stop flashing with another 5 second delay before starting  but we dont
    // In fact this  should not work
    
    
    __delay_ms(5000) ;
    /* Never ending cycle...*/
    while(1)
    {
       /*led  is  defined as above LED GPIObits.GP5  Now I will change this  above */
        
        LED^=1;             /* LED alternate ON and OFF / invert  this  value when looping */
        __delay_ms(200);    /* delay macro (200ms)  simple delay */
    }

}

void InitPic (void)
{
/* I/O port configuration */
    GPIO  =  0x00; // clear port down

#ifdef _PIC12F675_H_
    CMCON =  0x07;      /* Disable comparators Correct */
#endif
    
    
    ANSEL =  0x00;      /* Disable A/D module  Correct */
    TRISIO = 0x00;      /* All output is set as OUTPUT  also Correct */
    WPU = 0;            /* Disable all internal pull-ups  Correct again */
    OPTION_REG = 0x80;  /* Disable internal pull-ups global */
    
    /*Option_REG  is  ad follows GPPU: GPIO Pull-up  
     * Enable bit1 = GPIO pull-ups are disabled 0
     * = GPIO pull-ups are enabled by individual port latch values */
}




Please could you view the mp4 desktop  recording at this address

*** NB when you load this initially you will see it seems very bad recording but Ive found that if you play this 3/4 of the way then refresh the link with settings set to auto then quality is far far better and renders as it should ***

Dont ask me why this is so I dont know why

Mpeg 4  showing this  issue

Please also see  attached

In case simul file  not attached  here is the  simul mark up code in raw format

Code:


<circuit speed="1000000" noLinAcc="5" animate="0" type="simulide_0.4" reactStep="50">
 
Resistor-15:
<item valLabRot="0" id="Resistor-2" labely="-20" valLabely="21" objectName="Resistor-15" Unit=" Ω" x="-408" itemtype="Resistor" labelrot="0" valLabelx="-11" hflip="1" labelx="-12" Show_id="false" y="-148" rotation="0" Show_res="true" Resistance="470" vflip="1"/>
 
Led-14:
<item valLabRot="0" id="Led-3" labely="-24" valLabely="0" objectName="Led-14" x="-436" itemtype="Led" MaxCurrent="0.025" labelrot="0" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-112" rotation="90" Resistance="0.6" Grounded="false" vflip="1" Color="0" Threshold="2.2"/>
 
Ground-13:
<item hflip="1" labelx="-16" Show_id="false" rotation="0" x="-436" itemtype="Ground" valLabelx="0" y="-52" vflip="1" id="Ground-6" objectName="Ground-13" valLabely="0" labelrot="0" valLabRot="0" labely="8"/>
 
Resistor-12:
<item valLabRot="0" id="Resistor-9" labely="-20" valLabely="6" objectName="Resistor-12" Unit=" kΩ" x="-396" itemtype="Resistor" labelrot="0" valLabelx="-16" hflip="1" labelx="-12" Show_id="false" y="-36" rotation="0" Show_res="true" Resistance="10" vflip="1"/>
 
Fixed Voltage-11:
<item valLabRot="0" id="Fixed Voltage-11" labely="-24" valLabely="8" objectName="Fixed Voltage-11" Unit=" V" x="-524" itemtype="Fixed Voltage" Voltage="5" labelrot="0" valLabelx="-16" hflip="1" labelx="-64" Show_id="false" y="-36" rotation="0" vflip="1" Show_Volt="true"/>
 
pic12f675-10:
<item valLabRot="0" Program="../../../MPLABXProjects/TestLED.X/dist/default/production/TestLED.X.production.hex" id="pic12f675-21" labely="-20" Logic_Symbol="false" valLabely="0" objectName="pic12f675-10" x="-348" itemtype="PIC" labelrot="0" valLabelx="0" hflip="1" labelx="0" Show_id="true" y="-164" rotation="0" vflip="1" Mhz="4" eeprom="0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0" Auto_Load="false"/>
 
Voltimeter-9:
<item hflip="1" labelx="-24" Show_id="false" rotation="0" x="-572" itemtype="Voltimeter" valLabelx="0" y="-108" vflip="1" id="Voltimeter-43" objectName="Voltimeter-9" valLabely="0" labelrot="0" valLabRot="0" labely="-40"/>
 
Node-8:
<item hflip="1" labelx="-16" Show_id="false" rotation="0" x="-436" itemtype="Node" valLabelx="0" y="-80" vflip="1" id="Node-51" objectName="Node-8" valLabely="0" labelrot="0" valLabRot="0" labely="-24"/>
 
Node-7:
<item hflip="1" labelx="-16" Show_id="false" rotation="0" x="-364" itemtype="Node" valLabelx="0" y="-104" vflip="1" id="Node-57" objectName="Node-7" valLabely="0" labelrot="0" valLabRot="0" labely="-24"/>
 
TextComponent-6:
<item valLabRot="0" Margin="5" id="TextComponent-59" labely="-24" valLabely="0" objectName="TextComponent-6" Font="Helvetica [Cronyx]" Fixed_Width="true" x="-492" itemtype="TextComponent" Text="Reset cpu switch" labelrot="0" valLabelx="0" hflip="1" labelx="-16" Opacity="1" Show_id="false" y="-8" rotation="0" Font_Size="10" vflip="1" Border="1"/>
 
TextComponent-5:
<item valLabRot="0" Margin="5" id="TextComponent-73" labely="-24" valLabely="0" objectName="TextComponent-5" Font="Helvetica [Cronyx]" Fixed_Width="false" x="-608" itemtype="TextComponent" Text="I think could  be another issue with
MCLRE Line  and not with my own mistake as
Per reply  If I set  MCLRE in config to
On  I should reset cpu  Strictly this should
not work at all unless I tie gpio.3 to supply
Rail  so here is the delay before mian loop in code" labelrot="0" valLabelx="0" hflip="1" labelx="-16" Opacity="1" Show_id="false" y="-288" rotation="0" Font_Size="10" vflip="1" Border="1"/>
 
Push-4:
<item valLabRot="0" id="Push-74" labely="-24" Norm_Close="false" valLabely="0" objectName="Push-4" x="-376" itemtype="Push" labelrot="0" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="44" rotation="0" Poles="1" Key="" vflip="1"/>
 
Node-3:
<item hflip="1" labelx="-16" Show_id="false" rotation="0" x="-404" itemtype="Node" valLabelx="0" y="24" vflip="1" id="Node-76" objectName="Node-3" valLabely="0" labelrot="0" valLabRot="0" labely="-24"/>
 
Ground-2:
<item hflip="1" labelx="-16" Show_id="false" rotation="0" x="-348" itemtype="Ground" valLabelx="0" y="80" vflip="1" id="Ground-79" objectName="Ground-2" valLabely="0" labelrot="0" valLabRot="0" labely="8"/>
 
TextComponent-1:
<item valLabRot="0" Margin="5" id="TextComponent-82" labely="-24" valLabely="0" objectName="TextComponent-1" Font="Helvetica [Cronyx]" Fixed_Width="false" x="-564" itemtype="TextComponent" Text="No reset ??  Mmmm
Any ideas on this one" labelrot="0" valLabelx="0" hflip="1" labelx="-16" Opacity="1" Show_id="false" y="44" rotation="0" Font_Size="10" vflip="1" Border="1"/>
 
Connector-16:
<item startpinid="Led-14-lPin" valLabRot="0" id="Connector-4" labely="-24" valLabely="0" objectName="Connector-16" endpinid="Resistor-15-lPin" x="-436" itemtype="Connector" labelrot="0" pointList="-436,-128,-436,-148,-424,-148" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-128" rotation="0" enodeid="Circ_eNode-17" vflip="1"/>
 
Connector-18:
<item startpinid="Resistor-15-rPin" valLabRot="0" id="Connector-30" labely="-24" valLabely="0" objectName="Connector-18" endpinid="pic12f675-10-GP5" x="-392" itemtype="Connector" labelrot="0" pointList="-392,-148,-356,-148" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-148" rotation="0" enodeid="Circ_eNode-19" vflip="1"/>
 
Connector-20:
<item startpinid="Resistor-12-rPin" valLabRot="0" id="Connector-24" labely="-24" valLabely="0" objectName="Connector-20" endpinid="Node-7-0" x="-380" itemtype="Connector" labelrot="0" pointList="-380,-36,-364,-36,-364,-104" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-36" rotation="0" enodeid="enode-28" vflip="1"/>
 
Connector-22:
<item startpinid="Led-14-rPin" valLabRot="0" id="Connector-7" labely="-24" valLabely="0" objectName="Connector-22" endpinid="Node-8-0" x="-436" itemtype="Connector" labelrot="0" pointList="-436,-96,-436,-80" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-96" rotation="0" enodeid="Circ_eNode-23" vflip="1"/>
 
Connector-24:
<item startpinid="Voltimeter-9-rPin" valLabRot="0" id="Connector-50" labely="-24" valLabely="0" objectName="Connector-24" endpinid="Node-8-1" x="-564" itemtype="Connector" labelrot="0" pointList="-564,-92,-564,-80,-436,-80" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-92" rotation="0" enodeid="Circ_eNode-23" vflip="1"/>
 
Connector-25:
<item startpinid="Node-8-2" valLabRot="0" id="Connector-52" labely="-24" valLabely="0" objectName="Connector-25" endpinid="Ground-13-Gnd" x="-436" itemtype="Connector" labelrot="0" pointList="-436,-80,-436,-68" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-80" rotation="0" enodeid="Circ_eNode-23" vflip="1"/>
 
Connector-26:
<item startpinid="Node-7-2" valLabRot="0" id="Connector-58" labely="-24" valLabely="0" objectName="Connector-26" endpinid="pic12f675-10-GP3" x="-364" itemtype="Connector" labelrot="0" pointList="-364,-104,-364,-132,-356,-132" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-104" rotation="0" enodeid="enode-28" vflip="1"/>
 
Connector-27:
<item startpinid="Push-4-pinP0" valLabRot="0" id="Connector-75" labely="-24" valLabely="0" objectName="Connector-27" endpinid="Node-3-1" x="-392" itemtype="Connector" labelrot="0" pointList="-392,44,-404,44,-404,24" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="44" rotation="0" enodeid="enode-28" vflip="1"/>
 
Connector-29:
<item startpinid="Push-4-switch0pinN" valLabRot="0" id="Connector-80" labely="-24" valLabely="0" objectName="Connector-29" endpinid="Ground-2-Gnd" x="-360" itemtype="Connector" labelrot="0" pointList="-360,44,-348,44,-348,64" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="44" rotation="0" enodeid="Circ_eNode-30" vflip="1"/>
 
Connector-31:
<item startpinid="Fixed Voltage-11-outnod" valLabRot="0" id="Connector-81" labely="-24" valLabely="0" objectName="Connector-31" endpinid="Resistor-12-lPin" x="-508" itemtype="Connector" labelrot="0" pointList="-508,-36,-412,-36" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-36" rotation="0" enodeid="Circ_eNode-32" vflip="1"/>
 
Connector-33:
<item startpinid="Voltimeter-9-lPin" valLabRot="0" id="Connector-56" labely="-24" valLabely="0" objectName="Connector-33" endpinid="Node-3-0" x="-580" itemtype="Connector" labelrot="0" pointList="-580,-92,-580,24,-404,24" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="-92" rotation="0" enodeid="enode-28" vflip="1"/>
 
Connector-28:
<item startpinid="Node-3-2" valLabRot="0" id="Connector-28" labely="-24" valLabely="0" objectName="Connector-28" endpinid="Node-7-1" x="-404" itemtype="Connector" labelrot="0" pointList="-404,24,-340,24,-340,-104,-364,-104" valLabelx="0" hflip="1" labelx="-16" Show_id="false" y="24" rotation="0" enodeid="enode-28" vflip="1"/>
 
PlotterWidget-34:
<item sizePolicy="" tabletTracking="false" frameGeometry="" y="0" baseSize="" maximumSize="" childrenRect="" MaxVolt="500" accessibleDescription="" mouseTracking="false" size="" updatesEnabled="true" sizeHint="" whatsThis="" rect="" windowFilePath="" focus="false" minimumHeight="200" sizeIncrement="" Tracks="1" font="Noto Sans,10,-1,5,50,0,0,0,0,0,Regular" geometry="" focusPolicy="0" fullScreen="false" x="0" maximized="false" inputMethodHints="0" minimumWidth="200" maximumHeight="200" toolTip="" childrenRegion="" accessibleName="" styleSheet="" minimized="false" contextMenuPolicy="1" minimumSizeHint="" windowTitle="" windowOpacity="1" frameSize="" maximumWidth="1000" isActiveWindow="true" autoFillBackground="false" visible="false" cursor="" statusTip="" windowModality="0" itemtype="Plotter" windowModified="false" toolTipDuration="-1" MinVolt="-500" minimumSize="" windowIcon="" layoutDirection="0" modal="false" palette="" width="200" height="200" locale="" objectName="PlotterWidget-34" pos="" acceptDrops="false" enabled="true" normalGeometry="" windowIconText="" Scale="1"/>
 
</circuit>



I will have a look.

Thans for reporting.