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Showing results for tags 'eproms'.
Found 3 results
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It seems that the USPS has, once again, raised their rates. I mailed out a single EPROM this morning and First-Class shipping came to $4.20. Combined with the actual cost of the chip, mailing supplies, etc., I will unfortunately have to raise my costs immediately for a single EPROM orders. The revised rate is: $8 for the first EPROM and $6 for each additional EPROM in an order. That has not changed. Bob Carmany (Hummingbird EPROMs)
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Another one of my pesky questions-- My NanoPEB lately seems a bit "iffy," giving "DSR error 6" upon loading the second file of large programs like CF2K, or just locking up. My thoughts are: The NanoPEB is touchy about its supply voltage. My set-up has the console and NanoPEB running from the same supply, a battery supplied DC-DC converter. There was lots of power-line noise before I added filters. The voltage at the "navel" power connector is 4.84V. Haven't checked noise levels. The EPROM in the NanoPEB is losing its data. I remember, in the 1980s, hearing of EPROMs being erased by sunlight from friends who had their home-made systems near outside windows. My system sits near a window and I wonder if the label on the EPROM is letting some UV from outside to get in, which could slowly erase the DSR. I need to beef-up the power wiring from the supply to the console/NanoPEB. I originally used 22 gauge wire in the power supply; the charts I read said it should handle three amps, which I figured was enough for the system. The supply-to-console power cable is doubled-up because it is about three feet long. The NanoPEB edge connector is touchy. After I re-seated the NanoPEB I was able to run CF2K without failure, but I'm not sure I trust it. I've had to re-seat the edge connector before. I wonder if I replaced the edge connector with something like the header connectors on IDE drives, or that Arduinos use, if it might not be more "stable" for the long term. Ideas? K-R.
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So I am trying to gather data on creating my own 2600 cartridges. Later on down the road i want to get into programming games but for now I just want to practice creating carts. What I have gathered is that I need an eprom programmer and some eproms (i already bought some 2732's). I then download the rom of the atari game that I want and burn it onto the eprom. I then desolder the old atari chip and then solder the new 2732 eprom in its place. My question is, is that it? it sounds straightforward and simple but I feel like it shouldn't be. Sorry for the noob question but I've been searching around for a few weeks trying to figure this all out. Thank you in advance.
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