Hi,

Larry G. Nelson Sr. wrote:

>I just started a proof of concept with a 17C756 and I will need to have 3
>RS232 serial ports. I have done 2 on processors with 1 USART by bit banging
>one. I have a routine to bit bang at 9600 that works well but I was
>wondering if anyone has some C samples for configuring and using the 2
>USARTS on the 17C family they would be willing to share.
>Thanks in advance for any help you can give.

Well a bit offtopic, but if I'm not misstaken you'll still end up one
port short ? Or are you meaning to bitbang this one ? anyway, in this case
i would either use MAX3100 ( 1 or 2 pcs. ) or an 16F628 hacked to work
as an spi uart ( an 16F628 is actually cheaper than an dedicated uart chip
as
max3100, figure that one out someone ? ).

This eases the burden for timing on the pic, an the uarts will have atleast
8 bytes fifos ( if 16F628 is used one could have an *large* fifo :) ).

Just my 2 cent,

/Tony

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