15 Dec
2017
15 Dec
'17
11:09 p.m.
On Fri, 12/15/17, Ethan Dicks via cctalk <cctalk at classiccmp.org> wrote:
On Fri, Dec 15, 2017 at 1:49 PM, systems_glitch
<systems.glitch at gmail.com> wrote:
The LSI-11 I had at last spring's VCFs did that with a little home-brew
6809 board I was using for TU58 emulation. I wasn't going into a
DLV11 per se, but into an MXV11.
I'd have to go back and look at the details to see how fast it was actually
running. Somewhere in the back of my mind, I had to back off a little
bit on what the hardware could do because something on the software
side couldn't take it that fast.
BLS
It's on my list of things to do -- you can
run external clock into DL11 and
DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit,
so somewhere between 38400 and 2 mbit should be possible.
A side-effect of modding the DLV11J could be high-speed TU58 emulation... 
16 Dec
16 Dec
12:35 a.m.
On 12/15/2017 08:09 PM, Brian L. Stuart via cctalk wrote:
I'd have to go back and look at the details to see
how fast it was actually
running. Somewhere in the back of my mind, I had to back off a little
bit on what the hardware could do because something on the software
side couldn't take it that fast.
I've lately been doing the data transfer stuff using STM32F407
development boards. Cheap ($12 shipped), with a 168MHz ARM CPU and
84Mhz peripheral clocks with multichannel DMA to 192K RAM. Lots of fast
5V tolerant GPIO.
In my case, I use the SDIO facility (4 wire) to an SDHC, with Chan's
FATFS filesystem code. Do all your imaging to SDHC (a 16 or 32GB card
should image a lot of RL02s) and then read the card on a PC platform.
Simple, fast and cheap. If you need UARTs, they're on the chip as well
and can run stupid-fast.
Welcome to the 21st century.
Cheers,
Chuck
26 Dec
26 Dec
1:30 p.m.
On 2017-12-15 22:35, Chuck Guzis via cctalk wrote:
Hello Chuck,
I started with the stm32f407 a while ago, but gave up,
the support wasn't there than.
I've lately been doing the data transfer stuff
using STM32F407
development boards. Cheap ($12 shipped), with a 168MHz ARM CPU and
84Mhz peripheral clocks with multichannel DMA to 192K RAM. Lots of fast
5V tolerant GPIO.
$12 development boards? Which ones do you use?
In my case, I use the SDIO facility (4 wire) to an
SDHC, with Chan's
FATFS filesystem code. Do all your imaging to SDHC (a 16 or 32GB card
should image a lot of RL02s) and then read the card on a PC platform.
Simple, fast and cheap. If you need UARTs, they're on the chip as well
and can run stupid-fast.
Do you use gcc, or the eval tools from STM?
Thanks,
emanuel
2:22 p.m.
On 12/26/2017 10:30 AM, emanuel stiebler via cctalk wrote:
$12 development boards? Which ones do you use?
I use the STM32_F4VE, and get it through AliExpress:
http://wiki.stm32duino.com/index.php?title=STM32F407
Do you use gcc, or the eval tools? from STM?
gcc under Linux. I'm old-fashioned, so I write my own makefiles.
Pair one up with a little ESP8266 module driving the serial port and
it's a really sweet setup.
--Chuck
2405
days inactive
2415
days old
3 comments
3 participants
participants (3)
-
blstuart＠bellsouth.net -
cclist＠sydex.com -
emu＠e-bbes.com