- Eeprom programmer raspberry pi how to#
- Eeprom programmer raspberry pi install#
- Eeprom programmer raspberry pi pro#
- Eeprom programmer raspberry pi code#
Eeprom programmer raspberry pi how to#
Eeprom programmer raspberry pi install#
Eeprom programmer raspberry pi pro#
I think I’ll add three more of the green nuts and spacers to the Model A+ to make it fit better 🙂 I used the large bus ties to carry SDA, SCL, 3V3 and GND, allowing me to simplify the wiring. (Programming 24LC512 EEPROMs – click on image for larger version) Initially I wanted to use ZIF sockets, but I was unable to find inexpensive 8 pin ZIF sockets, so I just used standard eight pin sockets. (programming 24LC256 EEPROM’s – click on image for larger version) Here are some images of the finished programmer: Due to the standardized pin out, the programmer hardware would also support smaller EEPROM’s. I use the 512Kbit 24LC512 EEPROM’s for RoboPi, but I also use 256Kbit 24LC256’s on some of my other products. Heck, the Model A & A+ are inexpensive enough to dedicate to being a gang EEPROM programmer! I decided to use the recently introduced $20 Raspberry Pi Model A+ (click here to read my review) for my experiments as it was sitting in front of me 🙂 I have a lot of Raspberry Pi’s in my lab (Model A, Model A+, Model B, Model B+), so I decided to make my gang programmer generic – usable with any Raspberry Pi model (except the Compute Module).
Eeprom programmer raspberry pi code#
The Wiki at has great instructions on how to read and program EEPROM’s from a Raspberry Pi using a Raspberry Pi from the command line, and had a link to source code for the needed eeprog utility. I figured I can’t be the only one who wanted to program EEPROM’s with a Raspberry Pi, so I went googling for “Raspberry Pi eeprom”, and found Some intense scribbling followed … and after due consideration, I decided to use a Raspberry Pi as the “brain” of my gang programmer. I decided to make my own EEPROM gang programmer for programming up to eight EEPROM’s at a time (method to madness: load eight blanks, start programming, go back later to unload… rinse and repeat!). $1000++? Really? Seriously? Forget that noise! When I saw the prices, I was not a happy camper. I decided to google around for pricing for commercial EEPROM gang programmers. For example, if you had to get 200 kits made up, and on average it took four minutes to program and verify a chip, you would be sitting there for 800 minutes… ouch! When you are doing a few kits that is not an issue, when you have to get a LOT of kits assembled… it adds up to a lot of tedious work and/or money. The idea of programming the EEPROM chips one at a time did not exactly appeal to me, as I’d be stuck spending a few minutes on programming each chip, or worse, pay someone hourly to produce 15-20 programmed chips per hour. Good ideas often come with a catch – in this case, the catch is that I’ve now taken on the task of programming and verifying the EEPROM chips before packaging the kit of parts. This will save my customers time in getting their robots up & running – after all, most of them will be unfamiliar with the Parallax Propeller microcontroller used on RoboPi, and it would eliminate a few steps in the installation process. I’ve recently decided that I will start shipping RoboPi kits with the latest firmware pre-programmed into the boot EEPROM. “Necessity is the mother of all invention” (Unknown)
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