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[/] [s6soc/] - Rev 40

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40 Added in internal document links, so you can click on contents items
(for example), and go directly to the referenced section.
dgisselq 2927d 16h /s6soc/
39 Fixes the doorbell light, so that it goes on and off properly now. dgisselq 2930d 09h /s6soc/
38 Updated the documentation. dgisselq 2930d 09h /s6soc/
37 Fixed the problem with the clock running too slow. dgisselq 2931d 06h /s6soc/
36 Many updates to the SPEC, although it's still by no means complete. dgisselq 2933d 07h /s6soc/
35 Minor updates and tweaks, primarily fixing the none_sel signal when the
RTC, scope, or ICAPE interface are not present.
dgisselq 2933d 07h /s6soc/
34 Adjusted this so that the "*.c" files are now archived. Also, I didn't
need archiving of python files, so that extension was removed as well.
dgisselq 2933d 07h /s6soc/
33 Adjusted the defaults, so that more values have defined default values. dgisselq 2933d 07h /s6soc/
32 Removed an undefined value from o_lcd[2] setting. dgisselq 2933d 07h /s6soc/
31 Fixed a bug caught by Verilator. dgisselq 2933d 07h /s6soc/
30 Brings the CPU up to date with the rest of the ZipCPU distribution. dgisselq 2933d 07h /s6soc/
29 A first capability for setting time, dawn, and dusk values using the keypad.
At this point, I now have a minimal capability for actually accomplishing
the entire task. It's not very robust, but if you get lucky it'll work.
dgisselq 2933d 07h /s6soc/
28 Fixed a small lint bug associated with the scope vs the compressed scope. dgisselq 2937d 18h /s6soc/
27 Added a bootloader capability so that pieces of the program may be immediately
loaded into RAM. Further, the custom linker script, cmodram.ld, has been
added to dispatch object files to either FLASH or RAM. Finally, for those
items that were headed to RAM, their support files have been split between
RAM and FLASH code: kernel.c/ksetup.c, syspipe.c/pipesetup.c, etc.
dgisselq 2937d 18h /s6soc/
26 Modified to be able to handle different load from virtual addresses. This
enables the bootloader capability.
dgisselq 2937d 18h /s6soc/
25 Converted timer B to be a non-reloadable watchdog timer. dgisselq 2937d 18h /s6soc/
24 Made the ziptimer autoreload feature a parameter (dis)abled option. dgisselq 2937d 19h /s6soc/
23 Fixed a bug which caused every instruction to be loaded/prefetched twice. dgisselq 2937d 19h /s6soc/
22 Initial version of the ZipOS operating system construct(s). dgisselq 2941d 17h /s6soc/
21 Adds two device drivers: one for the SPI display, and another for the pseudo
device that simulates the Real-Time Clock.
dgisselq 2941d 17h /s6soc/
20 This linker description file acknowledges a .fixdata section which can be
used for debug data upon startup. This allows a startup function to write
all registers out, without destroying them or modifying them on the way.
dgisselq 2941d 17h /s6soc/
19 Addition of dumpuart.cpp to dump the UART transactions to a FILE (method of
debugging the board). FLASHDRVR and ZIPLOAD were also updated to handle
loading ELF files where the code is longer than a single block.
dgisselq 2941d 17h /s6soc/
18 Added a picture of the device pinouts to the specification. dgisselq 2941d 18h /s6soc/
17 Modifications necessary to find some bugs, and to load the flash with an ELF
file.
dgisselq 2941d 18h /s6soc/
16 Bug fix. This release fixes several bugs associated with transitioning from
user mode to supervisor mode while running from flash memory. This also
rewires TIMER-B into a watch-dog timer, and adjusts the LED's to be an
indicator of interrupts and whether or not the CPU has stalled or not as well.
dgisselq 2941d 18h /s6soc/
15 Adds a new program and a new device: doorbell2 and the PmodCLS display. This
also includes a real-time clock simulator--since we couldn't fit it on the
board.
dgisselq 2947d 11h /s6soc/
14 Modified the loader so that it will load even if there are RAM variables
in the load, just as long as they aren't anything but zero. (The startup code,
however, doesn't clear memory to match--so be sure to initialize all variables.)
dgisselq 2947d 11h /s6soc/
13 Fixed a nasty parameter problem between toplevel and txuart. The UART
transmitter now both works (again), and properly generates the required
interrupts. This also finishes the fixes to the alternate toplevel file,
alttop.v, that should've been fixed in the last release.
dgisselq 2947d 11h /s6soc/
12 The UART and PWM audio now work. This includes the changes to make that
happen, as well as the source code for some UART and PWM demo programs.
dgisselq 2948d 09h /s6soc/
11 Runs on hardware now! Added proper pinouts, pipelined wishbone command
interface sufficient for loading the flash, a loader to load the flash,
and verified that they work.
dgisselq 2949d 07h /s6soc/

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