SynthModules

--- In SynthModules@yahoogroups.com, "grantrichter2001"
<grichter@a...> wrote:
> Version 7.2 implements HSERIN and HSEROUT which are 
> code blocks that use the hardware UART. In theory, they should 
> take care of interupt processing for us. But direct register use 
> may still needed for byte by byte message parsing, the HSERIN 
> routine may add enough overhead so it can't handle MIDI data 
> rates.
> 
> To use HSERIN you also have to enable it and use the 
> SERSETUP command to initialize the UART.
> Grant

I did finally get the PMR1 to work without a poke.  Must have been a
late night moment.

I've played around with the HSERIN this morning.  When I do an
ENABLEHSERIAL and the SETHSERIAL command, the RE (receiver enable)
bit in SCR3 is set to 0.  I can't even turn it back on with a
SCR3=%11110000 command.  I'm suspecting that it might be enabled
within the HSERIN command.  As such, I don't know how to use this
with interrupts since I don't seem to be able to enable the receiver.

Dave