Thankyou all . I know have it up and working.


*********** REPLY SEPARATOR  ***********

On 1/12/2002 at 6:56 AM Bob Barr wrote:

>On Sat, 12 Jan 2002 12:18:03 +0000, Simon-Thijs de Feber wrote:
>
>>Hello,
>>
>>If it is a 14 pin connector you can safely assume that
>>they are all the same.
>>This 14 pin connector is quite standardized.
>>
>>Normally it looks something like this (no guarantees)
>>Pin     Signal
>>1       VCC
>>2       GND
>
>You've got these two pins are swapped. Vcc (Vss) is on pin 2 and
>ground (Vee) is on pin 1. (See below for a possible cause of this
>swap.)
>
>>3       VLCD/VO
>>4       RS
>>5       RE
>>6       E
>>7       D0
>>8       D1
>>9       D2
>>10      D3
>>11      D4
>>12      D5
>>13      D6
>>14      D7
>>
>>Other wise try to track the signal from the
>>HD44780(with the data sheet beside it) to the
>>Connector.
>
>For me, one irritating thing about LCDs is that the header is commonly
>(always?) attached from the back side of the PCB. Mechanically, that
>makes good sense to do but it sure complicates the pin numbering.
>
>The outside conductor of the ribbon cable (normally referred to as
>'pin 1') ends up going to pin 2 of the LCD. All of the odd pins are
>mirrored to the even pins and vice versa because of this rear mounting
>of the header.
>
>Does anyone know of a convenient way to keep from screwing up these
>connections? I manage to get them wrong way too often.
>
>
>Regards, Bob
>
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