[Coco] RS232 Pak needed

[Steve Bjork]

Yes, that is my point.  The Pic (Micro-controller) will handle the 
Rs-232 handshaking to control the flow of data.

You could even take it up to the next level and let the Pic do the block 
and crc checking.  We know the data going from the CoCo to the new UART 
board is good.  So, let the Pic handle the the Data blocking and error 
checking to get the data to the other end in a new data transfer mode. 
This would be a big help for programs like Drive Wire under OS-9.

Steve

On 9/20/2013 10:13 AM, Gene Heskett wrote:
> I like what I'm hearing Steve, but because the 6551's hardware control is
> busted, the hardware flow controls need to be completely hidden in the pic
> code.  What currently exists in sc6551.dr is a deadlock if its ever
> triggered.  Been there, done that, uncountable times so I have to use a
> very restricted "window" size of 256 bytes when using the linux zmodem to
> send a disk image to the coco with both ends set for 9600 baud.  The crc
> checking and handshaking slows it enough it just pours down the pipe.  Its
> a very small bore pipe but it works.