i know, i personally written an
"Srec/S19 talker" for 68hc11
it a program written in assembly which set up the serial port to 19.200bps
in order to put my application into ram
Buffalo (motorola m68hc11 monitor) is working the same way as my
talker(i have to confess you ... i have grabbed a bit of code from
Buffalo)
On my board i've got Mon68K, but the serial port of the m68000 board is hw limited to 19200bps
it's an old m6850 uard device with a fix board rate generator (external circuit, old fashion school )
i could replace it with a faster and modern unit (e.g. m68681) but ....
an eprom emulator is faster, simpler, and more fashionable =P
also i have a lot of data to upload, up to 512Kbyte
on this m68060 board i have got two m68681-uart's chips
so the mon68k can be forced to a faster uart data rate, up tp 38Kbps
and this is the best i can do without information lost.
Also my 8051 board has the same problem
and look, it has got a pretty eprom of 32Kbyte that could be emulated =P