I2C Read and Write

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  1. - 15th April 2008, 16:22 #8
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    JD123
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    Is the "mem_off" variable word size? The 24C64 uses a word sized address. Your variable "mem_off" is being sent as the address. Also, just asking, but you do have the A0:A2 pins on the IC grounded for the device address "1010000", right?

    Your lines:
    Code:
    ram[F05_HI] = MyWordRd/256 'This register can be read over modbus
ram[F05_LO] = MyWordRd
    are a bit odd and are going to run up a lot of code space. I'd use:
    Code:
    ram[F05_HI] = MyWordRd.Highbyte
ram[F05_LO] = MyWordRd.Lowbyte
    Last edited by JD123; - 15th April 2008 at 17:07.
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