Without technical documentation, you're going to have to figure out IO addressing, how interrupts work, etc, all on your own. I don't think a week is enough time. Did the same thing myself once on a breath alcohol tester on which all source code/documentation had been lost. Just resolving code from data took me about a week, and that was with a fairly expensive disassembler as a tool.
T Rittenhouse wrote:
Humm....?
Been a long time since I did machine code programing. But since the firmware for the camera is undoubtedly in CMOS or EEPROM these days. It would just be a case of copying it out. Mucking around until you found the proper place in the code, inserting a call to your code (tacked on to the end of the existing software) and copying the new firmware back to the camera. No need to mess with the existing code except the place where you put the call. If you need to keep the code you replaced with the call, you add it to your new code so the call takes you to it also.
Most of your time will be spent dissassembling the old code to find the jump point you need. I admit his 15 minutes is optimistic, but a man-week sounds reasonable, and that would be worthwhile.
Ciao, Graywolf http://pages.prodigy.net/graywolfphoto
----- Original Message ----- From: "Lon Williamson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, June 08, 2003 5:57 AM Subject: Re: Pentax k-mount
Arnold, be careful with that. Figuring out how to add such a thing when messing with a binary image is no 15 minute job on _this_ side of the factory. Been there, done that, weeks are involved....
-Lon
Arnold Stark wrote:
I won't either buy a Nikon or Canon DSLR. If Pentax does not hear us and does not offer better compatibilty on a DSLR that I can afford, then I will either buy a better film scanner, or I will wait for Cosina to bring a DSLR in true k-mount. Or I willpull out the memory chip and reprogram that *ist D camera myself. It can' take more than 15 minutes to implement metering in manual mode with DOF preview activated.
