Question about 18F4450


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  1. #7
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    May 2008
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    Darrel
    No I didn't know that, I have been using the MSSP pins and figured that was the way it had to be.
    The code I have written works on the 877A and 887 but not on the 4450. I am reading and writting to EEPROM.

    I am currently using this to set the ports. (LAB-X1 board)

    DataPin var PORTC.4
    ClkPin var PORTC.3

    I inserted the 4450 and programmed it, everything worked except the writting to EEPROM.

    Guess I should have looked a little more closely at the datasheets. Pins changed in 4450, so no I2C on LAB-X1 Board.

    877a - Pin18 - SCL - c3
    Pin23 - SDA - c4

    4450 - Pin18 - Vusb - Input
    Pin23 - c4

    Waiting for a few remaining parts to be able to start using Breadboard, then I can get off of the hardwired ports on the LAB-X1.

    Thanks for your timely help there Darrel.
    Last edited by manwolf; - 9th July 2008 at 20:47. Reason: Opened eyes and looked at Datasheets.

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