The one in the forground is a "quick and dirty" flash device programmer I built for a client in an afternoon when the commercial programmer he had purchased failed - with no time to wait for another one to be delivered, this little board (and some PC software to go with it) allowed us to complete the design on time. There have been other device programmer projects which I've done in a bit more of a hurry. Simply plug it into the programming port on the target system, press the button, and wait for the tri-color LED to flash green for success, or an error code in red.īoth programmers were very well received due to their low cost, high programming speed and reliability.
Once loaded from a PC (using the programmer on the left), the programmer operates independendly - no PC or cables required. The units on the right are a "keyfob" programmer - Only about a cubix inch in volume, this device can store and program up to 64K bytes of code into an embedded system.
Eprom programmer design 8085 serial#
The units on the left are a universal programmer, which can connect to either a serial or parallel port of a PC, and prvides a rich command set to perform in-circuit programming and verification operations (no software is necessary other than the ability to send the commands and transfer the content of code files to the device.)
The photo above shows two in-circuit flash device programmers that I developed for a company to distribute with their line of single-board computers.