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magnetic reader 16f84 with external eeprom 24c256

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jordan_airmike

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pic external eeprom

Hello everybody

I have been working on this project for quite a while now and I am stuck on the programming part of the PIC 16F84 microcontroller. What I want to do is to collect data from a F2F decoder (magnetic data decoder) with the help of a PIC 16F84 and to store it on the external EEPROM 24C256. I also have to programme the PIC to write in the external memory 24C256 the time (like a timer) for each data entry (for each card swipe).
I am trying to programme the PIC in MPLAB. Please help me to create the right source code (.ASM).
Many thanks
 

24c256 uart

jordan_airmike said:
Hello everybody

I have been working on this project for quite a while now and I am stuck on the programming part of the PIC 16F84 microcontroller. What I want to do is to collect data from a F2F decoder (magnetic data decoder) with the help of a PIC 16F84 and to store it on the external EEPROM 24C256. I also have to programme the PIC to write in the external memory 24C256 the time (like a timer) for each data entry (for each card swipe).
I am trying to programme the PIC in MPLAB. Please help me to create the right source code (.ASM).
Many thanks
Click to expand...

You can not program Pic 16f84 using MPLAB directly - there is need to use proper programmer and PC software like IC-PROG..
 

pic16f84 and external memory

I have done one project somehow similar to this. I use serial a barcode reader as input, 24c64 as external memory and ds1302 as real time ic but i'm using picbasic instead of mpasm because they offer sample program for the components i'm using.

Why don't you use 16f628, it has a uart that you can use to get the data from the eeprom. I also used it to set the time and date of the rtc. It also has a larger program memory which is needed to add more functionality.

You can also use 16F877 (which I use) so you can add LCD display or switches which you can use for menu and other functions.
 

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