CGCOLORMAX rev 2 I/O callouts.
Typical Digital Output Electrical Characteristics
Output Low Voltage: 0.0 to 0.4V
Output High Voltage: 2.4 to 3.3V
Maximum current draw/sink on any I/O pin: 25mA
Maximum cumulative current draw/sink for all I/O pins: 200mA (150mA derated)
Maximum voltage for 5V tolerant open collector pins: 5.5V
Typical Digital Input Electrical Characteristics
Maximum input voltage, normal pins: 3.6V
Maximum voltage for 5V tolerant input pins: 5.5V
Voltage range for a logic low input: 0.0 to 0.66V
Voltage range for a logic high input: 2.64 to 3.3V
Voltage range for a logic high input – 5V tolerant inputs: 2.64 to 5.5V
Analog input voltage range: 0.0 to 3.3V
Brad Fraley says
You used to have more technical info about the speed and such of the CGCOLORMAX2 but I can not find it. Also used to have a manual you could download.
The manual is out of date – the information on the web site supersedes it. The manual is here: Beginning Maximite
I think I found a small error:
under “Voltage range for a logic low input – 5V tolerant inputs: 2.64 to 5.5V” should be “logic high”.
The keyboard connector is PS2, yes?
Does it matter what keyboard layout is used for BASIC? I imagine US layout, but is it configurable for, eg, UK layout?
CONFIG KEYBOARD US | UK | FR | GR | BE | IT | ES
The KEYBOARD setting will change the keyboard layout to suit standard keyboards (US), United Kingdom (UK), French (FR), German (GR), Belgium (BE), Italian (IT) or Spanish (ES) keyboards. The default is US.
Thanks. Will save me having to get another keyboard!
The CONFIG command differs from other options. It permanently reconfigures MMBasic and it only needs to be run once (ie, the setting will be remembered even with the power turned off).
The power must be cycled after changing a setting for it to take effect.
So my CGCOLORMAX2 has finally arrived (had to pay £20.09 duty grrr) and it fires up ok, but when I plug in my PS/2 keyboard, all I get is a lower case ‘v’ every second and nothing else. The keyboard lights come on briefly on power up then go out.
The machine seems ok without keyboard plugged in.
Now, this is a new PS/2 keyboard, and I have no other device I can try it with and no other PS/2 keyboard to try with the CGCOLORMAX2, so before I start asking around for other kit to try, is this something that anyone as seen before?
I’m powering the CGCOLORMAX2 with USB power – I’ve tried 3 different USB power supplies: One for a Kindle Paperwhite, an iPhone 8+ and Samsung Galaxy S8.
I seem to remember a situation like this happening before, but I believe that it was mentioned on The Back Shed. I tried a search but didn’t find the post.
Perhaps if you post a request for help someone on TBS may remember the situation.
The Back Shed: https://www.thebackshed.com/forum/forum_topics.asp?FID=16
Martin Farrell says
How would I be able to buy this machine in the UK? I’ve tried googling but can’t find it anywhere
We ship to the UK.
Brian Stringfellow says
Does the PIC32 chip get hot? I was thinking of installing a small heatsink on it just in case.
No, the PIC32 doesn’t need a heatsink.