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54 Commits

Author SHA1 Message Date
David Banks 08116e5f21 Routed four test signals to J5 
Change-Id: Ife39830dc193486c4af66bd49bc5680cab285108
 2021-11-18 15:12:12 +00:00
David Banks 58978d3e05 Update build scripts to generate .bin files for programming using OpenOCD on a Pi 
Change-Id: I39909acc3a1fe4504d5e4c2d20d11b23e3878058
 2021-09-21 10:57:25 +01:00
David Banks 97a1e9ad74 Add std=c99 to Makefile.inc 
Change-Id: I0b0f74c25117ecf18fd479d55fdf818e205d6be8
 2021-03-20 17:20:23 +00:00
David Banks b708ec59a8 lx9_dave: update WatchEvents from 512x72 to 4096x72 
Change-Id: I6b1fac95150592244cd5662c502ff34fbb885d10
 2020-06-22 20:39:08 +01:00
David Banks c0275ff059 Make commands 6-bits, add Special and TimerMode commands 
Change-Id: I8862fba0cf4c1e54ee831a547bf3337bbe7cf973
 2020-06-21 14:12:33 +01:00
David Banks 849300b51c lx9_dave: Baud rate now 115200 
Change-Id: I6d29b7ff143828ff78a21a717a3c638553505d81
 2019-11-11 11:16:42 +00:00
David Banks b28e49dbd9 Firmware: cleaned up status.c 
Change-Id: I59a54b89cf3eb701a10953f4a4450ee0c64b862c
 2019-11-10 17:46:00 +00:00
David Banks 08cfc81ba1 GODIL: Tidy up .ucf files, all pins 8ms drive 
Change-Id: I77d82e3249993deb52151df13229850f63ebc15b
 2019-11-04 15:23:04 +00:00
David Banks 663aac5198 6809: cosmetic renaming 
Change-Id: I2a6a68289f7bb30ad23387f684dfd1badd6d754c
 2019-11-04 09:19:27 +00:00
David Banks 7cc6bd93f4 build: include icemulti in overall release package 
Change-Id: Iba6962d3d25aec4b6dab080db8a607dcdc50f5f0
 2019-11-02 20:09:57 +00:00
David Banks e01ee2b010 6809: fixed some recent build errors 
Change-Id: Ica0aa9de8c2c7d7d15821fa061671f8419b9fbe5
 2019-11-02 20:09:19 +00:00
David Banks fc651b7135 Firmware: removed CPU_EMBEDDED #define as obsolete 
Change-Id: I18f593d2abdc44d1d7dd48c5ef0e4bc19a9a0b88
 2019-11-02 19:37:15 +00:00
David Banks 3b0286f692 .xise project churn (of no consequence) 
Change-Id: I2d8b2093871e594e45f870854540ef06dc98a3a3
 2019-11-02 19:31:32 +00:00
David Banks c6f860ed2c 6502: seperate top level for GODIL and old LX9, rename modules for consistency 
Change-Id: I6d9f390a24b63a303f4a557e49ee68109af4c76a
 2019-11-02 19:31:32 +00:00
David Banks cfce5b1bd7 Z80/6809: rename clocks for consistency 
Change-Id: Iecd3ac5ede39865efc58eaa9e45f5892a44acb82
 2019-11-02 19:31:32 +00:00
David Banks e0db1ccd7c Removed ice6502mon as it's never really been used 
Change-Id: I0898ea3450573c5dafc143e5589aa0a3b4a1dc6c
 2019-11-02 19:31:38 +00:00
David Banks 1227d174a9 Removed ice6502fast as it's never really been used 
Change-Id: I7179414838f0488b12f0cc01d51b09184d835546
 2019-11-02 19:31:32 +00:00
David Banks 9c4c0837e5 6809: seperate top level for GODIL and old LX9 
Change-Id: I4a7d2a67c8aeaabc25d2987edb4a9026e92b1efc
 2019-11-02 15:18:33 +00:00
David Banks 29438683b2 Z80: seperate top level for GODIL and old LX9 
Change-Id: I1f339996037bb8a20afb7664877e0ed1d53d3868
 2019-11-02 14:50:43 +00:00
David Banks d9f53c1f09 Z80: refactor at top level to better support tristateable outputs 
Change-Id: Ic4a55eb99c85ff2032079d8d12c7d7e44803b6e2
 2019-11-02 13:26:00 +00:00
David Banks b8d08ccdaa Z80: lx9_dave add pullups to tristateable outputs 
Change-Id: Ibee63f2940c921fde792ff7b63e15c2fbd4e8d32
 2019-11-01 18:32:42 +00:00
David Banks c2e80e2e4c Build: simplfy makefile by outputting a .bin file 
Change-Id: I85cea0011a819fff3789e121a89af05b24ddfbd7
 2019-10-31 12:53:23 +00:00
David Banks b0d7418a47 Add pullup to ICE-Z80 Mode input on GODIL 
Change-Id: I749690f5805adc34bb658f6ba9d161b240fb45a4
 2019-10-30 14:29:05 +00:00
David Banks 4818f026b2 Removed unused h44780 support (free AVR PortA) 
Change-Id: Iadde3718cfd6e8be08b680796d8c9cd01016e694
 2019-10-29 14:56:16 +00:00
David Banks 643afe51d3 .xise project churn (of no consequence) 
Change-Id: Ibfc0d1d89ca6e83bad34388a7557171650d89c0b
 2019-10-27 19:21:26 +00:00
David Banks ee1510d069 lx9_dave: makefile fixes 
Change-Id: I280b33ad597b59b0cbb55a85d919aba67136f339
 2019-10-27 19:20:25 +00:00
David Banks ff3a5143b8 lx9_dave: add build target for loader and unknown 
Change-Id: Ic9099b9e4586e86260c4396ee0e64066b729a18d
 2019-10-27 18:51:00 +00:00
David Banks b6abb6964a Z80: Update all builds to 8 comparators and 16KB code 
Change-Id: I8adc986caab323de395301ba397f4c7874e50d49
 2019-10-27 17:32:29 +00:00
David Banks 820ee65cee Z80: Add mode input to other icez80 builds build 
Change-Id: I1b9130ec3835f08a4c3f429860aff6f09dc92d8c
 2019-10-27 17:30:23 +00:00
David Banks b9ac0628d2 lx9_dave: fix Makefile to build loader and unknown subdirs 
Change-Id: I4b2f5b588dd075452226d73269400255d9046cbd
 2019-10-27 17:29:21 +00:00
David Banks 0b6e686934 Z80: Disable godil_250 build (no longer fits) 
Change-Id: I578f3fb6df2b36ef6a00b25a49ccc5f407bf7961
 2019-10-27 17:29:21 +00:00
David Banks 26f0bea110 Z80: Output NOPs when paused (inc M1) 
Change-Id: I100fac021d68662497fbd2d0c7428dcaf9ef98a3
 2019-10-26 15:19:44 +01:00
David Banks a29aa3015a lx9_dave z80: increase code space to 32KB 
Change-Id: I7ab22f8cca51184b94e709336b661b8685d02d0b
 2019-10-25 17:11:13 +01:00
David Banks c045ebd10c All 6809 designs now use MC6809CpuMonCore 
Change-Id: I97ca73690c7e1258a5b359260d695af25c21ca54
 2019-10-24 14:06:03 +01:00
David Banks 3cc7789923 6502/65c02: Uncomment Rdy in .ucf file 
Change-Id: I6ef4f92dc4e0438c169d20ab5b05f8d4162478ff
 2019-10-17 14:47:08 +01:00
David Banks f4bff7757c Use CPU_65C02 for defined as CPU == 65C02 doesn't work 
Change-Id: Ibedbac5941ab897f0d530dfa3d73cc516d62bd8f
 2019-10-16 20:41:08 +01:00
David Banks 1c44718f91 Seperate 6502 and 65c02 builds 
Change-Id: I41af27c62e61a6490bda4da01da6e4f8740121fb
 2019-10-16 20:40:15 +01:00
David Banks cc1c8ba709 Multiboot: increase cclk to 26MHz 
Change-Id: I7bb6c17a582c7d283458bd7ed8a1bc2852bb73b3
 2019-10-16 16:11:44 +01:00
David Banks 131312e0e9 Multiboot: initial impl 
Change-Id: I7efa2cf8079b4bfc1e89c5c26ecce30dfae34782
 2019-10-16 15:49:58 +01:00
David Banks 9bcea56588 z80: CLK_n timing constraint now 8MHz 
Change-Id: Ia544905845a8b7996ff3e381a1e47184cc5dda82
 2019-10-15 11:45:51 +01:00
David Banks 4c746994cb z80: major rewrite of memory access state machine 
Change-Id: Icc5c7c991120ed155691c1e74517ac02f8ea2ada
 2019-10-14 13:35:13 +01:00
David Banks 984ac1a2d3 z80: fixed an error in board.ucf in the previous commit 
Change-Id: Ib83916a7e1d1dcc163001ab342e65b80858d9c29
 2019-10-03 18:26:15 +01:00
David Banks dfeaff9488 6502: minor fixes to lx9_dave, boots in beeb 
Change-Id: I18c909f7586b439d52ecc938d4a9bb7a3e6d76e5
 2019-10-03 13:17:18 +01:00
David Banks c660ea87be Updated lx9_dave/ice6502 for active level shifter design 
Change-Id: Ib2e98050d02c9c1e3dd7c9a9b63eea118b95a540
 2019-09-20 15:34:44 +01:00
David Banks a25a008ffc Updated lx9_dave/icez80 for active level shifter design 
Change-Id: I546e1afc0943443f444ae7f55783bac7e3379453
 2019-09-20 15:34:34 +01:00
David Banks e9d4e98b96 LX9 6502: Move fakeTube input to p112 (next to a GND) 
Change-Id: Ib52362ed12ddc885025f1e098f864fdb313b795d
 2018-12-21 17:45:22 +00:00
David Banks 1dcf9fa247 Updated lx9_dave/ice6502 with correct .ucf file and a new top-level design 
Change-Id: Ic67e37fb876322983a44c35e9db08b1b8371aea2
 2018-11-20 17:32:02 +00:00
David Banks b9d6359be4 Checked in initial work on lx9_dave target (see full comment) 
The .ucf files look like they are for a completely different board
(the lx9 starter board, not the epizza board). So these need to be
reworked completely.

Also, the following signals needs adding to the top level 6502 design:
- OEAH (output)
- OEAL (output)
- OED  (output)
- ML   (output)
- VP   (output)
- BE   (input)

The system will not work without some attention to these.

Minimally, in the FPGA design we can tie them as follows:
- OEAH (output) - set to 0 (address bus always enabled)
- OEAL (output) - set to 0 (ditto)
- OED  (output) - set to !phi2 (data bus driven in second half of clock)
- ML   (output) - set output to 1 (and fit P3 link between pins 2 and 3)
- VP   (output) - set output to 1 (and don't fit P4 link)
- BE   (input)  - ignore input

The current adapter design does not fully support the implementation of BE
as it does not provide a way to tristate RNW. That would require the addition
of a seperate level shifter, e.g. a 74LVC1G125

Change-Id: I1bf11c5ef8318c5ebfa942cb4bd07f750d0b370d
 2018-11-20 09:42:58 +00:00
David Banks 40cac3c401 Updated Makefile for 64-bit build 
Change-Id: Ieaa309d30463209cd0e9c1aa6e6b23cbec8e92b0
 2018-02-15 13:05:49 +00:00
David Banks e45e4423af Added lx9_jason_flipped to build 
Change-Id: I6c0a140a1e5229dca8eddc770a232712de17cd4b
 2017-09-22 22:57:54 +01:00