Commit Graph

54 Commits

Author SHA1 Message Date
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
4b2533b69f Added GPL license text file. 2012-05-25 22:41:15 -07:00
Doug Brown
145487d388 Added GPL header to all of my source files. 2012-05-25 20:21:04 -07:00
Doug Brown
ec2237ee21 Updated to LUFA 120219 (with later CDC deadlock patch too) 2012-05-25 19:20:38 -07:00
Doug Brown
e9da0905f0 Changed USB vendor/product IDs to use the ones I got. 2012-05-21 19:52:49 -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
d0b50e15c9 Removed old dead code from external_mem.c 2012-05-13 17:06:57 -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
522ded0973 Added .bin file generation for firmware upload 2012-03-04 17:28:15 -08:00
Doug Brown
c681547026 Fixed bug that screwed up reading after doing an electrical test. 2012-03-04 12:03:02 -08:00
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
035e7cce28 Updated fusebits to prepare for bootloader. 2011-12-20 21:50:14 -08:00
Doug Brown
e38269f879 Optimized the SIMM electrical test, fixed a few small bugs I had introduced in the previous commit. Added comments where necessary. Seems to work great now. 2011-12-18 14:55:08 -08:00
Doug Brown
a1ca591d60 The same short is never repeated twice with the same 2 pins now. However -- if there's a short between 1, 2, and 3 -- it will still show a short between 1 and 2, 1 and 3, and 2 and 3, even though that info is somewhat redundant. But the host software can iron all that out. 2011-12-18 14:18:49 -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
beae025d1a Oops, I was counting too many errors 2011-12-18 10:19:57 -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
52d33e077f Broke out the SPI read/write into a single routine. Less code repetition -- easier to read and smaller. 2011-12-17 13:43:12 -08:00
Doug Brown
540e04331a Fixed the ordering of the chips -- I had the bytes reversed. Now, when I write/read a continuous stream of data, the bytes will correspond with the correct chips. 2011-12-17 11:18:56 -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
4f0d1a894c Optimized some of my routines and fixed a nasty, nasty bug that was causing the board to crash because of multiple things being outputs simultaneously. 2011-12-13 21:56:20 -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
7099218bf1 Added some optimization to remove the 1us delay on the write pulse, but I'm not sure that it matters much. 2011-12-11 13:45:17 -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
Doug Brown
f5bf5fed36 Commented the change I made to the DDR bit convention 2011-12-07 21:41:50 -08:00
Doug Brown
918b615654 Oops! the MCP23S17's DDR is backwards from the AVR. 1 = input, 0 = output. After swapping them, my electrical test is working! 2011-12-07 21:30:42 -08:00
Doug Brown
b475c28040 Fixed a bug in the address line tests, updated fusebits for now [with no bootloader yet], started working on getting all the tests working 2011-12-07 21:17:47 -08:00
Doug Brown
bfeadc7e3a I had forgotten to check the control lines for ground shorts. 2011-12-04 17:09:57 -08:00
Doug Brown
65c6654660 Added delay "adapter" class to keep simm_electrical_test.c completely platform-independent.
Updated the electrical class to wait after setting up pins before reading them.
2011-12-04 16:30:26 -08:00
Doug Brown
fc44d70c4f Finished writing the electrical test routine, and fixed a mistake in how I named a few functions in ports.c.
I'm not completely done with the electrical test because it only counts errors right now. So I need to implement a framework to determine which pins are shorted rather than just counting them.
2011-12-04 16:13:30 -08:00
Doug Brown
06a667d66d Fixed an inaccurate comment. 2011-11-27 23:06:02 -08:00
Doug Brown
0a52df645a - Fixed stupid bug of -1 instead of +1 in external_mem.c.
- Began writing an electrical test so I remember WTF I'm doing later
2011-11-27 00:09:29 -08:00