On Wed, 26 Jul 2000 17:02:03 -0500, you wrote:

>At 04:32 AM 7/26/00 -0400, Kev wrote:
>>Is it possibly to read 2 Serial ports (1 RS-232 & 1 RS-485) both =
assumed to
>>be at 9600 baud plus do a constant A/D conversion?
>
>Sure.. The 485 ends up as TTL anyway, so you have tons of options.
>Me, I'd use a chip with a real uart for the 232, and if the budget =
allows,
>a max3100 for the 485.
>One int per char, per interface. max of 38400 ints/sec for full speed =
full
>duplex on both ports.
>Or, you could bit-bang the 485, but noise on the line could drive you =
nuts
>with TONS of ints.. (which is why uarts exist :)
Once you have done one 9600 uart in software (on a timer int at 2x
baudrate), adding more input and/or output ports is pretty easy

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