Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
at90s1200 i2c
Hi,
Yes have constructed the unit, and works great.
You will have to use a different hex file for the 2313.
If you need further help, don't hesitate to contact me.
cheers
sda
Hi,
Has anyone any info on how in system programming works on the above series of MCU's?
I have checked out Holtek's site, downloaded the datasheets regarding thier MCU's
But other than " ISP is done though a simple 3 wire interface and the ISP is done serially" I can find nothing.
Any help...
Here's something I have come up for setting voltage output, and also current sensing (current metering and limiting)
I have used a R/2R ladder on a port, with 8 bit resolution.
Works nicely.
Regards
sda
As stated, it is a degaussing problem.
I think you either forgot to reconnect the degaussing coil or it was accidently disconnected during repair.
Or, a faulty PTC in the set.
regards
sda
@ ctownsend
I also had a problem porting a 1200 to a 2313 for the Lola logic analyser, and thanks to your very well documented asm file managed to get it done.
So here's 20 points from me.
regards
sda
logic analyzer hinrichs
Thank you,
After asking around here in greece, I have managed to source the 6116 but the micro is discontinued.
I have one which is rated at 4Mhz, which is unsuitable, unless it will work overclocked, but I think I'll compile the asm for a tiny2313 which is pin...
at90s1200 based projects
Thank you for the info.
One point though, the 6116 ram used, is a very hard item to get hold of, the maxim DS 1220 looks like a compatable device.
Your remarks?
regards
sda
at90s1200
Hi,
Having downloaded the files, it looks very impessive and promising.
Have you built the unit?
Also, do you have more info of its origin, like author etc.
Regards,
sda
A few days ago, while repairing an old musical valved amplifier, somehow while lifting the unit with both hands, I got a nastyshock. Both hands stuck on the amplifier, and no way to let go. Fortunately a fellow technician saw the event and pulled the power plug out. The outcome was a burn on two...
Normaly the only things that can be user programmed are written into the eeprom. Except in some cases lookup tables are on eeprom, then the mcu knows where to find the specific data it requires.
In most cases the initial eeprom settings are written on mask rom in the mcu, and when you replace...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
