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Reading EEPROM on a Microchip 16F630

cityswift

Hi - I am using the EEPROM on 16F630 to store a series of numbers - in fact times in seconds in 2 bytes - and am reading the data out by using the PICKIT programmer screen at the end of each session. This is ok while I am using the PICKIT development board but what about if I put the project on to a dedicated pcb? Does anyone have any ideas how I might read out this data onto a laptop using an interface and a suitable programme?  Any comments would be much appreciated.

  • 0

    Hi Cityswift,

     

    Is there any specific reason why you choose the PIC16F630 ?

    The negative point in your case is that you want to communicate with the PC but you picked up one PIC which has no communication peripheral :=(

     

    It all depends how much time you are ready to spend and about your programming experience.

    It is possible to communicate with a PC using the current PIC16F630 by doing a software UART. You'll just need to add a RS232 level translator as well as ...a quartz or resonnator on the PIC (if you don't have one) to make sure the accuracy of the clock is OK.

     

    Another option is to select another PIC16 which has a UART onboard like the PIC16F688. It should be pretty easy to migrate your software and avoid the pain to develop a SW UART ;=)

     

    Then, using Hyperterminal or any other terminal SW you can capture the data on the PC side

     

    regards

  • 0 in reply to MicrochipRTCfr

    Thanks -you have answered my question and with the benefit of hindsight I would have used a different PIC. In my defence this is my first microcontroller project, so in future I will be able to make a better selection. The project consists of 160 lines of absolute code written in assembly and I would value your opinion on how long you think it would take me to switch to the 16F688 should I decide to do so?  The project is a high value one and if required I could include a Pickit 1 or something similar in each product if necessary. Thanks again Dave Tedd