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writing totals in Eprom

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MrDEB

MrDEB

Well-Known Member
working on a Swordfish program to display TOTALS of 3 separate breakfasts that we serve on the first Saturday of each month.
I am trying to get the totals written in the EEPROM but it reads some really weird totals like 6403?
This code works great but in case the batteries take a dump or? the totals in the eeprom would be nice.
using a 4 x 20 LCD

*****************************************************************************
* Name : UNTITLED.BAS *
* Author : [select VIEW...EDITOR OPTIONS] *
* Notice : Copyright (c) 2022 [select VIEW...EDITOR OPTIONS] *
* : All Rights Reserved *
* Date : 6/19/2022 *
* Version : 1.0 *
* Notes : breakfast caculator 6/22/22 *
* : *
*****************************************************************************
}
//Program BREAKFAST CACULATOR

Device = 18F43K22
Clock = 16

// int osc and IO pin libraries
Include "intosc.bas"
#option DIGITALIO_INIT = true // automatically call setalldigital
Include "setdigitalio.bas"

// lcd
#option LCD_DATA = PORTD.4
#option LCD_RS = PORTD.2
#option LCD_EN = PORTD.3
// import LCD library...
Include "utils.bas"
Include "LCD.bas"
Include "ADC.bas"
Include "convert.bas"
Include "LCD.bas"
Include "convert.bas"
Include "EEPROM.bas"
// hardware
Dim Button_1 As PORTB.0 // $8 breakfast
Dim Button_2 As PORTB.1 // $5 breakfast
Dim Button_3 As PORTB.2 // 2x breakfast
Dim Button_4 As PORTB.3// cash totals etc
Dim Cash_Totals As Word //cash totals
Dim Meals_Totals As Word //number of meals sold
Dim Eight_Dollar As Word ' $8 breakfast
Dim Five_dollar As Word ' $5 breakfast
Dim Two_times As Word ' 2x breakfast
Dim Cash As Word ' cash sales
Dim Press As PORTC.2
Dim led As PORTD.0
Dim Value As Byte
Dim Str As String

Sub Sales() //suggestion add each meal $ totals
led = 1
Cls
Cash = (Eight_Dollar * 8) + (Five_dollar * 5) + (Two_times * 3)
WriteAt(1,1,"CASH TOTALS:=$",DecToStr(Cash))
WriteAt(2,1,"$8 BREAKFAST:=",DecToStr(Eight_Dollar)," $",DecToStr(Eight_Dollar *8))
WriteAt(3,1,"$5 BREAKFAST:=",DecToStr(Five_dollar)," $",DecToStr(Five_dollar *5))
WriteAt(4,1,"$3 2xTIME :=", DecToStr(Two_times)," $",DecToStr(Two_times *3))
DelayMS(10000)
Cls
End Sub


main:
// init hdw
// LED port - all outputs 2 LEDs per port in parallel 330 ohm resistor
TRISA = 0
'TRISB = 0
TRISC = 0
TRISD = 0
TRISE = 0
PORTE=%000
PORTD=%00000000
PORTC=%00000000
PORTA=%00000000
'PORTB=%00000000 //pullups
//main:
// init hdw
TRISD = 0 // LED port - all outputs
TRISB = $FF // SW port - all inputs
WPUB = $FF // PORTB pullup mask - all PORTB pullups
INTCON2.bits(7) = 0 // RBPU bit - turn on pullups
Input (Press)
Eight_Dollar = 0
Five_dollar = 0
Two_times = 0
Cash = 0
While true


If Button_1 = 0 Then
Eight_Dollar = (Eight_Dollar + 1)
WriteAt(2,1,"$8 BREAKFAST : =",DecToStr (Eight_Dollar ))
' EE.Write(0,DecToStr (Eight_Dollar ))
DelayMS(200)


Else If Button_2 = 0 Then
Five_dollar = (Five_dollar + 1)
WriteAt(3,1,"$5 BREAKFAST : =" ,DecToStr(Five_dollar))
DelayMS(200)

Else If Button_3 = 0 Then
Two_times = (Two_times + 1)
WriteAt(4,1,"$3 2x times : =",DecToStr(Two_times))
DelayMS(200)


Else If Button_4 = 0 Then //breakfast total meals sold
Repeat
Cash = (Eight_Dollar * 8) + (Five_dollar * 5) + (Two_times * 3)
WriteAt(1,1,"CASH TOTALS:=$",DecToStr(Cash))
WriteAt(2,1,"$8BREAKFAST:=",DecToStr(Eight_Dollar)," $",DecToStr(Eight_Dollar *8))
WriteAt(3,1,"$5BREAKFAST:=",DecToStr(Five_dollar)," $",DecToStr(Five_dollar *5))
WriteAt(4,1,"$3 2xTIME :=", DecToStr(Two_times)," $",DecToStr(Two_times *3))
led = 1
Until Press = 0
Cls
End If
End If
End If
End If

Wend






[/CODE]
[/ICODE]
 
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How about something like this...

It keeps a total of each of the meals along with the total number of meals sold in EEPROM.
When it powers up it checks to see if things match, so there's a little sanity check there.

Code: 
Program BREAKFAST_CALCULATOR

Device = 18F43K22
Clock = 16

// int osc and IO pin libraries
Include "intosc.bas"
#option DIGITALIO_INIT = true // automatically call setalldigital
Include "setdigitalio.bas"

// lcd
#option LCD_DATA = PORTD.4
#option LCD_RS = PORTD.2
#option LCD_EN = PORTD.3
// import LCD library...
Include "LCD.bas"
Include "utils.bas"
Include "convert.bas"
Include "EEPROM.bas"

// hardware
Dim Button_1 As PORTB.0     // $8 breakfast
Dim Button_2 As PORTB.1     // $5 breakfast
Dim Button_3 As PORTB.2     // 2x breakfast
Dim Button_4 As PORTB.3     // cash totals etc
Dim Press    As PORTC.2
Dim led      As PORTD.0

Dim Cash_Totals As Word     //cash totals
Dim Meals_Totals As Word    //number of meals sold
Dim Eight_Dollar As Word    // $8 breakfast
Dim Five_dollar As Word     // $5 breakfast
Dim Two_times As Word       // 2x breakfast
Dim Cash As Word            // cash sales

// eeprom data storage and initialization
// automatically creates 'EE_xxx' constants with locations
eeprom(@EE_EIGHT_DOLLAR) = (0 as word)
eeprom(@EE_FIVE_DOLLAR) = (0 as word)
eeprom(@EE_TWO_TIMES) = (0 as word)
eeprom(@EE_MEALS_TOTALS) = (0 as word)
    
Sub Sales() //suggestion add each meal $ totals
    led = 1
    Cls
    Cash = (Eight_Dollar * 8) + (Five_dollar * 5) + (Two_times * 3)
    WriteAt(1,1,"CASH TOTALS:=$",DecToStr(Cash))
    WriteAt(2,1,"$8 BREAKFAST:=",DecToStr(Eight_Dollar)," $",DecToStr(Eight_Dollar *8))
    WriteAt(3,1,"$5 BREAKFAST:=",DecToStr(Five_dollar)," $",DecToStr(Five_dollar *5))
    WriteAt(4,1,"$3 2xTIME :=", DecToStr(Two_times)," $",DecToStr(Two_times *3))
    DelayMS(10000)
    Cls
End Sub

// calc total number of meals
Function TotalMeals() as word
    result = Eight_Dollar + Five_dollar + Two_times
end function

main:
// init hdw
// LED port - all outputs 2 LEDs per port in parallel 330 ohm resistor
TRISA = 0
TRISC = 0
TRISE = 0
PORTE = %000
PORTD = %00000000
PORTC = %00000000
PORTA = %00000000
'PORTB=%00000000 //pullups

TRISD = 0       // LED port - all outputs
TRISB = $FF     // SW port - all inputs
WPUB = $FF      // PORTB pullup mask - all PORTB pullups
INTCON2.bits(7) = 0 // RBPU bit - turn on pullups

Input (Press)   // PORTC.2 is an input

cls

// recall eeprom data
EE.Read(EE_EIGHT_DOLLAR, Eight_Dollar, Five_dollar, Two_times, Meals_Totals)
// add number of meals and see if it matches eeprom total
// if not, eeprom is invalid so clear vars
if (TotalMeals() <> Meals_Totals) then
    WriteAt(1,1,"MEAL EEPROM INVALID")
    Eight_Dollar = 0
    Five_dollar = 0
    Two_times = 0
endif

While true
    If Button_1 = 0 Then
        Eight_Dollar = (Eight_Dollar + 1)
        WriteAt(2,1,"$8 BREAKFAST : =",DecToStr (Eight_Dollar ))
        EE.Write(EE_EIGHT_DOLLAR, Eight_Dollar)
        Meals_Totals = TotalMeals()
        EE.Write(EE_MEALS_TOTALS, Meals_Totals)
        while (Button_1 = 0)    // wait for button release
            DelayMS(200)
        end while
    ElseIf Button_2 = 0 Then
        Five_dollar = (Five_dollar + 1)
        WriteAt(3,1,"$5 BREAKFAST : =" ,DecToStr(Five_dollar))
        EE.Write(EE_FIVE_DOLLAR, Five_dollar)
        Meals_Totals = TotalMeals()
        EE.Write(EE_MEALS_TOTALS, Meals_Totals)
        while (Button_2 = 0)    // wait for button release
            DelayMS(200)
        end while
    ElseIf Button_3 = 0 Then
        Two_times = (Two_times + 1)
        WriteAt(4,1,"$3 2x times : =",DecToStr(Two_times))
        EE.Write(EE_TWO_TIMES, Two_times)
        Meals_Totals = TotalMeals()
        EE.Write(EE_MEALS_TOTALS, Meals_Totals)
        while (Button_3 = 0)    // wait for button release
            DelayMS(200)
        end while
    ElseIf Button_4 = 0 Then //breakfast total meals sold
        Repeat
            Cash = (Eight_Dollar * 8) + (Five_dollar * 5) + (Two_times * 3)
            WriteAt(1,1,"CASH TOTALS:=$",DecToStr(Cash))
            WriteAt(2,1,"$8BREAKFAST:=",DecToStr(Eight_Dollar)," $",DecToStr(Eight_Dollar *8))
            WriteAt(3,1,"$5BREAKFAST:=",DecToStr(Five_dollar)," $",DecToStr(Five_dollar *5))
            WriteAt(4,1,"$3 2xTIME :=", DecToStr(Two_times)," $",DecToStr(Two_times *3))
            led = 1
        Until Press = 0
        Cls
    EndIf
Wend

end program
 
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Wow. Throw some crap out that doesn't even attempt to do what you want, and let minions do all the rest.
 
Upvote 0 Downvote
Here is edited code but it dosen't write what the eeprom has. see notes
Code: 
{
*****************************************************************************
*  Name    : UNTITLED.BAS                                                   *
*  Author  : [select VIEW...EDITOR OPTIONS]                                 *
*  Notice  : Copyright (c) 2022 [select VIEW...EDITOR OPTIONS]              *
*          : All Rights Reserved                                            *
*  Date    : 6/28/2022                                                      *
*  Version : 1.0                                                            *
*  Notes   :                                                                *
*          :                                                                *
*****************************************************************************
}
Program BREAKFAST_CALCULATOR

Device = 18F43K22
Clock = 16

// int osc and IO pin libraries
Include "intosc.bas"
#option DIGITALIO_INIT = true // automatically call setalldigital
Include "setdigitalio.bas"

// lcd
#option LCD_DATA = PORTD.4
#option LCD_RS = PORTD.2
#option LCD_EN = PORTD.3
// import LCD library...
Include "LCD.bas"
Include "utils.bas"
Include "convert.bas"
Include "EEPROM.bas"

// hardware
Dim Button_1 As PORTB.0     // $8 breakfast
Dim Button_2 As PORTB.1     // $5 breakfast
Dim Button_3 As PORTB.2     // 2x breakfast
Dim Button_4 As PORTB.3     // cash totals etc
Dim Press    As PORTC.2
Dim led      As PORTD.0

Dim Cash_Totals As Word     //cash totals
Dim Meals_Totals As Word    //number of meals sold
Dim Eight_Dollar As Word    // $8 breakfast
Dim Five_dollar As Word     // $5 breakfast
Dim Two_times As Word       // 2x breakfast
Dim Cash As Word            // cash sales
Dim TotalMeals As Word
//dim Meals_Totals as word



// eeprom data storage and initialization
// automatically creates 'EE_xxx' constants with locations
EEPROM(@EE_EIGHT_DOLLAR) = (0 As Word)
EEPROM(@EE_FIVE_DOLLAR) = (0 As Word)
EEPROM(@EE_TWO_TIMES) = (0 As Word)
EEPROM(@EE_MEALS_TOTALS) = (0 As Word)
    


Sub Total_ee()
     // recall eeprom data
EE.Read(EE_EIGHT_DOLLAR, Eight_Dollar)//, Five_dollar, Two_times)//, Meals_Totals)
writeat(1,1,EE_EIGHT_DOLLAR, eight_dollar)
delayms(1000)
// add number of meals and see if it matches eeprom total
// if not, eeprom is invalid so clear vars
//If (TotalMeals() <> Meals_Totals) Then
  //  WriteAt(1,1,"MEAL EEPROM INVALID")
   // Eight_Dollar = 0
  //  Five_dollar = 0
 //   Two_times = 0
'EndIf
End Sub

// calc total number of meals
//Function TotalMeals() As Word
  //  result = Eight_Dollar + Five_dollar + Two_times
//End Function

main:
// init hdw
// LED port - all outputs 2 LEDs per port in parallel 330 ohm resistor
TRISA = 0
TRISC = 0
TRISE = 0
PORTE = %000
PORTD = %00000000
PORTC = %00000000
PORTA = %00000000
'PORTB=%00000000 //pullups

TRISD = 0       // LED port - all outputs
TRISB = $FF     // SW port - all inputs
WPUB = $FF      // PORTB pullup mask - all PORTB pullups
INTCON2.bits(7) = 0 // RBPU bit - turn on pullups

Input (Press)   // PORTC.2 is an input
Eight_Dollar = 0
Five_dollar = 0
Two_times = 0
Cash = 0
Cls
{
============I PUT THIS IN A SUB--------------
// recall eeprom data
EE.Read(EE_EIGHT_DOLLAR, Eight_Dollar, Five_dollar, Two_times, Meals_Totals)
// add number of meals and see if it matches eeprom total
// if not, eeprom is invalid so clear vars
if (TotalMeals() <> Meals_Totals) then
    WriteAt(1,1,"MEAL EEPROM INVALID")
    Eight_Dollar = 0
    Five_dollar = 0
    Two_times = 0
endif
 }
While true
    If Button_1 = 0 Then
        Eight_Dollar = (Eight_Dollar + 1)
        WriteAt(2,1,"$8 BREAKFAST : =",DecToStr (Eight_Dollar ))
        EE.Write(EE_EIGHT_DOLLAR, Eight_Dollar)
       // Meals_Totals = TotalMeals()                 TOTAL MEALS and MEAL TOTALS  are already processed in the REPEAT/UNTIL LOOP
       // EE.Write(EE_MEALS_TOTALS, Meals_Totals)
        While (Button_1 = 0)    // wait for button release
            DelayMS(200)
        End While
    ElseIf Button_2 = 0 Then
        Five_dollar = (Five_dollar + 1)
        WriteAt(3,1,"$5 BREAKFAST : =" ,DecToStr(Five_dollar))
        EE.Write(EE_FIVE_DOLLAR, Five_dollar)
       // Meals_Totals = TotalMeals()
       // EE.Write(EE_MEALS_TOTALS, Meals_Totals)
        While (Button_2 = 0)    // wait for button release
            DelayMS(200)
        End While
    ElseIf Button_3 = 0 Then
        Two_times = (Two_times + 1)
        WriteAt(4,1,"$3 2x times : =",DecToStr(Two_times))
        EE.Write(EE_TWO_TIMES, Two_times)
       // Meals_Totals = TotalMeals()
      //  EE.Write(EE_MEALS_TOTALS, Meals_Totals)
        While (Button_3 = 0)    // wait for button release
            DelayMS(200)
        End While
    ElseIf Button_4 = 0 Then //breakfast total meals sold
        Repeat
            Cash = (Eight_Dollar * 8) + (Five_dollar * 5) + (Two_times * 3)
            WriteAt(1,1,"CASH TOTALS:=$",DecToStr(Cash))
            WriteAt(2,1,"$8BREAKFAST:=",DecToStr(Eight_Dollar)," $",DecToStr(Eight_Dollar *8))
            WriteAt(3,1,"$5BREAKFAST:=",DecToStr(Five_dollar)," $",DecToStr(Five_dollar *5))
            WriteAt(4,1,"$3 2xTIME :=", DecToStr(Two_times)," $",DecToStr(Two_times *3))
            led = 1
        Until Press = 0
        Cls
        Total_ee()      //WRITE EEPROM SUB  ALL i GET IS TWO COLUMS OF FOUR LINES
        DelayMS(3000)
        led=0
    EndIf
Wend

End Program
 
Upvote 0 Downvote
I ran the code again and it progresses past the RECALL EEPROM ( I didn't wait long enough, I panicked) routine but the eeprom needs to be cleared with another button input. Luckly I have two additional buttons already connected.
If I leave it "as is" the totals add the totals from the previous breakfast plus the present breakfast which is ok, but not the current totals for each breakfast. I know it sounds nit picking but am using this as an exercise in eeprom READING/WRITING as well.
 
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Well, it does what you asked.

To clear the eeprom and variables, use this and add a call in your new button handling code
Code: 
sub clear_eeprom()
    Eight_Dollar = 0
    Five_dollar = 0
    Two_times = 0
    Meals_Totals = 0
    EE.Write(EE_EIGHT_DOLLAR, Eight_Dollar, Five_dollar, Two_times, Meals_Totals)
end sub
 
Upvote 0 Downvote
MrDEB said:
....I know it sounds nit picking but am using this as an exercise in eeprom READING/WRITING as well....
Click to expand...
I'm sure tumbleweed doesn't need any exercise in EEPROM use.
 
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