Well I got some 27c64's.. it at least does /something/ now 😆
Well I got a EPROM burner and rigged it work on the 2364 rom I pulled. I see 8 bytes that don't match the ROM images I find on the internet. I put my read image in an emulator and it never boots. The live memory map shows it stuck in a bootloop at about the same rhythm I am seeing on the scope. I think I am on the right path 🤞
Well RAM is ruled out. I think I am dealing with a bad ROM. D3 off the ROM seems to have lots of 0's. Also I am told there are HALT instructions in the rom code but the /HALT pin never drops on the Z80. What ever code it is executing sure doesn't seem right. Sockets installed. Ordered a 2364 to 27c64 EPROM adapter from RETRO Innovations. Now to wait for the mailman 😴
Cyber chatting on SDF with the CoCo2 listening to @snowdusk_ 's IWM show
Sadly gopher segfaults if you set your terminal to 'dumb'. Happens on SDF and my local machine. But i managed to figure out you can set up your own local terminfo database with tic. Just name it ~/.terminfo.cdb in your home directory. Now I have fancy screen controls for my vic20 and CoCo on my sdf account. Gopher and lynx now run but a total mess. I guess they never tested for 22x23 or 32x16 screens 🤔
I figured it out. The Tandy COMPAC terminal program doesn't reset the VGU when it loads. So the basic POKES for lower case and alternate color mode stick 🙂
Surfing the information superhighway at 300 baud. I wish i could find a terminal program that supports the true lowercase my "2b" machine can do.
I'm on the internet! Well SDF's COM chat at least. 🤔
I got my CoCo SDC from Zippster today and it works great. My first computer (COCO2) is going to get a lot more use now because of this thing. Just copy .DSK files to the sd card and you can mount them with out fuss. Even multi-disk OS9 SIERIA games work with out issue. The firmware lets you manipulate the images right from the CoCo so it doesn't need to be hooked to a PC or anything.
The coco's radioactive green looks glorious on a 55" LG 4K TV 😆
Well I now have 1345 wikipedias and lots of news. 😀
After fixing a power issue the dreamcatcher seems very stable. Cheap USB phone chargers wont cut it. After fixing that its run few months now with no more reboots or hangs.
My Othernet Dreamcatcher showed up. Its a SDR that picks up the project's satellite data and audio feed and builds up a local library.
Works good. So far I have 1 wikipedia 😆
Playing more with modems over SIP. I have 300/1200 working very well in to the SDF dialup line. So I decided to just set the modem to max speed and let the chips fall where they may.
It did not go well. 😆
My latency (Im on LTE) to my SIP service is
--- sip.anveo.com ping statistics ---
25 packets transmitted, 25 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 69.469/142.080/296.463/65.996 ms
My plan was to use my mini staycation to clean and organize. Hasn't been going well because I keep coming across forgotten things I want to play with. One of those things is a Z80 "softcard". Popped a CP/M image and kermit on my SDfloppy II and it fired right up. I was soon reminded of the reason I never got much use out of it. It can't seem to deal with anything faster then 300baud on the serial port with out dropping bits. 🤔
Having fun tinkering with old computers, old cars, old telco gear and any other junk i find. 8bit4life
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko