Commit Graph

32 Commits

Author SHA1 Message Date
Doug Brown
e2963070bc Added ability to tell programmer firmware to selectively unlock chips. 2013-07-04 12:10:18 -07:00
Doug Brown
0ebb9d2281 Finished implementing protocols for reading/writing portions of the SIMM 2012-10-17 21:31:00 -07:00
Doug Brown
bf583bf65b Fixed a couple of bugs -- first, I was reading the wrong datasheet.
Second, I was doing a bitwise AND when I was trying to do a modulo.
The firmware is now tested for erasing only a portion of the SIMM.
2012-10-16 21:25:15 -07:00
Doug Brown
3252f66749 Added untested support for erasing a specific portion of the SIMM
(in 256 KB increments). Won't be able to test it until I implement it in
the control software as well, but I think it should work.
2012-10-16 18:36:55 -07:00
Doug Brown
667c2c5a2d Added verify during write. It seems to mostly work except when the chip
is completely removed from the SIMM -- in that case, the verification
still passes for some reason. I'm still debugging this one. Maybe the
data I had just written is still essentially on the bus because of the
floating pins and it reads it too fast? Maybe turning on pull-ups would
help with that?
2012-09-30 14:41:22 -07:00
Doug Brown
ff1f213b6f Fixed maximum chip size allowed by firmware for compatibility with new
8 MB SIMM
2012-09-14 18:13:19 -07:00
Doug Brown
7acb3ffcc3 Added support for (untested yet) 8 MB ROM SIMM with chips that expect a
slightly different programming protocol.
2012-09-02 15:56:49 -07:00
Doug Brown
533813e949 Added LED toggle to write/read modes.
Read is so fast that you can't even see the blinking, but oh well.
I also added an "led.h" header file that I should have done long ago.
2012-05-27 15:41:16 -07:00
Doug Brown
145487d388 Added GPL header to all of my source files. 2012-05-25 20:21:04 -07:00
Doug Brown
40cc81446a Added one-second delay when switching between programmer and bootloader.
Just makes me feel better to ensure the "OK" confirmation arrives at the
computer.
2012-05-19 23:07:22 -07:00
Doug Brown
7d1888dab8 Added provisions to communication protocol for specifying readback size. 2012-05-19 22:58:17 -07:00
Doug Brown
6f24f97df5 Got rid of a few magic numbers, cleaned up more code 2012-05-13 17:48:35 -07:00
Doug Brown
f41d8f193a Electrical status "OK" reply is now sent immediately. Before, it was
being buffered, so we didn't get any immediate feedback until the
entire test was finished.
2012-05-13 09:40:04 -07:00
Doug Brown
7f69cb476d Tried to do some better commenting in usb_serial.c, also tried to do a better job of documenting the protocol in programmer_protocol.h 2012-01-26 20:42:42 -08:00
Doug Brown
147c2bfda3 Did some more splitting of responsibilities in the code 2011-12-26 15:02:39 -08:00
Doug Brown
e8999cfc54 Moved the programmer protocol to a different file in preparation for sharing it across all the various programs (bootloader, programmer, control program) 2011-12-26 11:31:45 -08:00
Doug Brown
258fb187ad Added extra commands for moving back and forth between the bootloader and the actual program.
Disabled the flash erase capability on the main program while I'm working on the bootloader...
2011-12-24 20:09:39 -08:00
Doug Brown
9333b65cde Fixed a tiny mistake -- forgot to say the name of one of my enums after the typedef.
Finished making the electrical test work -- I had failed to realize that I have to ignore the ground shorts once they have been found -- otherwise they reappear against EVERY tested pin (because they are always low and I'm testing for low pins -- duh!). Anyway, it was showing way too many shorts, and that's why. Now I independently can find shorts between separate pins without getting flooded with the ground shorts too. Only thing that's missing is the VCC shorts, but I can't do that without pullups (to my knowledge)
2011-12-18 12:00:22 -08:00
Doug Brown
9054aaff0f Started implementing electrical test that tells what pins are shorted to what 2011-12-18 10:18:30 -08:00
Doug Brown
b052bb62f8 Fixed a bug with how many bytes I was allowing to be written. It mostly works but it writes the chips in reverse...oops 2011-12-17 10:32:40 -08:00
Doug Brown
ca84a1d562 Kept working on the USB protocol 2011-12-16 20:13:34 -08:00
Doug Brown
4adb0c4980 Started working on more optimizations, but something weird is happening and it's crashing...not sure why yet. 2011-12-11 21:48:26 -08:00
Doug Brown
1c07518ab0 Added electrical test option to my temporary command line.
Also experimented with skipping the SPI -- I left my test code in there, commented out, in case I want to do some more speed testing.
2011-12-11 15:52:04 -08:00
Doug Brown
b4eb6c3ddc Started getting writing working, as well as the ability to restrict to a specific set of chips to write to 2011-12-11 13:28:32 -08:00
Doug Brown
e0977a9339 Created read and write cycle functions, along with a block read function. I think this will look better...
I also changed the port module so it doesn't needlessly update the data direction register over SPI if it's being told to set the same value it had before.
2011-12-11 10:12:22 -08:00
Doug Brown
f45cc2c4d6 Started writing more command handling 2011-12-11 08:35:53 -08:00
Doug Brown
651c3a4be7 Finished testing the new functions I made for chip identification. It works well 2011-12-10 18:57:17 -08:00
Doug Brown
8865d0c00f I got the device identification working, and I'm in the middle of breaking it into its own set of functions for write cycles, read cycles, unlock sequence, etc. 2011-12-10 18:40:30 -08:00
Doug Brown
1540bcadd1 Tested reading the entire SIMM contents back to the computer (it works) 2011-12-10 13:53:43 -08:00
Doug Brown
7db22e08af Fixed a few stupid bugs -- it's now reading data correctly. 2011-12-10 13:02:21 -08:00
Doug Brown
2bc61f41aa Continued playing with USB serial stuff. I think it's working well now, but I'm running into problems reading from the SIMM, so I need to figure out why I'm not getting the data I expect. 2011-12-10 10:35:41 -08:00
Doug Brown
1db6834da4 Added LUFA into the project, right now just for some demo stuff. 2011-12-09 22:11:31 -08:00