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[/] [s6soc/] - Rev 33

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33 Adjusted the defaults, so that more values have defined default values. dgisselq 3074d 23h /s6soc/
32 Removed an undefined value from o_lcd[2] setting. dgisselq 3074d 23h /s6soc/
31 Fixed a bug caught by Verilator. dgisselq 3074d 23h /s6soc/
30 Brings the CPU up to date with the rest of the ZipCPU distribution. dgisselq 3074d 23h /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 3074d 23h /s6soc/
28 Fixed a small lint bug associated with the scope vs the compressed scope. dgisselq 3079d 10h /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 3079d 10h /s6soc/
26 Modified to be able to handle different load from virtual addresses. This
enables the bootloader capability.
dgisselq 3079d 10h /s6soc/
25 Converted timer B to be a non-reloadable watchdog timer. dgisselq 3079d 10h /s6soc/
24 Made the ziptimer autoreload feature a parameter (dis)abled option. dgisselq 3079d 10h /s6soc/
23 Fixed a bug which caused every instruction to be loaded/prefetched twice. dgisselq 3079d 11h /s6soc/
22 Initial version of the ZipOS operating system construct(s). dgisselq 3083d 09h /s6soc/
21 Adds two device drivers: one for the SPI display, and another for the pseudo
device that simulates the Real-Time Clock.
dgisselq 3083d 09h /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 3083d 09h /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 3083d 09h /s6soc/
18 Added a picture of the device pinouts to the specification. dgisselq 3083d 09h /s6soc/
17 Modifications necessary to find some bugs, and to load the flash with an ELF
file.
dgisselq 3083d 10h /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 3083d 10h /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 3089d 03h /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 3089d 03h /s6soc/

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