Collaborate Disseminate
There are 0x10 ways to look at ROM programmers: they’re either relatively low-cost tools that let you quickly get about the business of programming vintage ROMs and get back to …read more Continue reading A Low-Cost ROM Programmer With an AI Twist
Scoring an interesting bit of old gear on the second-hand market is always a bit of a thrill — right up to the point where you realize the previous owner …read more Continue reading Generator Control Panel Unlocked with Reverse Engineering Heroics
[BuyItFixIt] is well known as a dab hand at, well, fixing things… and presumably buying them, too. Recently, they received an email calling for help of the former kind. One …read more Continue reading Fixing a Tractor Dashboard From Over 10,000 Miles Away
When is 14 volts not actually 14 volts? Given [Anders Nielsen]’s recent struggles with erasing an old-school EEPROM, it’s when you really need it that things tend to go pear-shaped. …read more Continue reading Erasing EEPROMs isn’t Always as Easy as it Seems
Data retention is a funny thing. Atmel will gladly tell you that the flash memory in an ATmega32A will retain its data for 100 years at room temperature. Microchip says …read more Continue reading How Do You Test If An EEPROM Can Hold Data For 100 Years?
We all know that solderless breadboards have their limitations. All that stray capacitance can play hell with circuits, especially high-speed stuff, but they’re so darn useful that avoiding them in …read more Continue reading Switching Converter for EEPROM Programmer Taxes Solderless Breadboard
That EPROMs, EEPROMs and kin can be used as programmable logic should probably not come as a major surprise, but [Jimmy] has created a Lisp-based project that makes using these …read more Continue reading Using EPROMS and EEPROMs As Programmable Logic With Lisp
What’s the difference between a 64k ROM in a 28-pin DIP and a 128k ROM in a 32-pin DIP? Aside from the obvious answers of “64k” and “four pins,” it …read more Continue reading Stuffing a 32-Pin Chip Into a 28-Pin Socket
[Jason P], evidently an enjoyer of old reliable laser printing tech, spilled a drink (nitter) onto his Panasonic KX-P5400 SideWriter. After cleanup, everything worked fine — except that the PSU’s …read more Continue reading Dead EEPROM Dumped With Help Of Body Diodes
Every time one of us flashes an Arduino’s internal memory, a nagging thought in the backs of our minds reminds us that, although everything in life is impermanent, nonvolatile re-writable …read more Continue reading Stress-Testing An Arduino’s EEPROM