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241 Commits 4 Branches 8 Tags 7.3 MiB
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Author SHA1 Message Date
David Banks
2ea31b9ad9 Kicad v2: pullups now 22K 
Change-Id: Ifc62323672c629df6b52f226b6476b2ad5518f38
 2019-09-13 16:37:18 +01:00
David Banks
ade0278509 Kicad v2: tidy silk screen 
Change-Id: If12620a298bd5fbff141099f2c71169e6e205514
 2019-09-13 16:27:09 +01:00
David Banks
c176820200 Kicad v2: rename links 
Change-Id: I2fc630457c3b052049f75c04c1aff412362bf5d8
 2019-09-13 15:40:31 +01:00
David Banks
03347ad73c Kicad v2: tidy silk screen 
Change-Id: Ibfc531d09abf424fe4ee19d3ce5bf832ba04c9d0
 2019-09-13 15:37:36 +01:00
David Banks
2344540958 Kicad v2: Made U7-9 optional 
Change-Id: I12321e6fa8e13fafd418168cac815ec912868499
 2019-09-13 14:12:59 +01:00
David Banks
753b10e4cf Kicad v2: more tidying; add logo 
Change-Id: I0f30f7ad6e5b9fd4cd53931bdb14ebcec43bfbde
 2019-09-13 12:28:39 +01:00
David Banks
1c7d4a67d7 Kicad v2: tidy up silk screen 
Change-Id: I896fd28673c0eb53f6806e9b0a759d7c3031513a
 2019-09-13 11:39:05 +01:00
David Banks
1a69b146a5 Kicad v2: move links to bottom side 
Change-Id: I33b51bece46e5740e79fb7a987f4b0b4afac2db6
 2019-09-11 22:44:58 +01:00
David Banks
4b88d2aedd Kicad v2: complete routing 
Change-Id: Iae7b92ccb95a640158a3a9c1239e2491624e5da2
 2019-09-11 18:19:02 +01:00
David Banks
3691beed9f Kicad v2: associate 3D shapes 
Change-Id: Ib7420c2c4d4255bf3a8f300c0ed9f4dc21d70a33
 2019-09-10 12:37:18 +01:00
David Banks
ef13b65a05 Kicad: remove old netlist 
Change-Id: I934333fc0d8f13e24efcf26b9f0b38f45037ea6b
 2019-09-10 12:23:16 +01:00
David Banks
f444a1e95c Kicad: tidy up old rescue libraries 
Change-Id: I7ebc1262f060e53b4b61088e066c484ba505e374
 2019-09-10 12:21:58 +01:00
David Banks
53dfb4de9d Kicad: v2 of 6502 board, work in progress 
Change-Id: I5d865e1926e1c646a2db54d31abfb38bb1109585
 2019-09-10 11:56:15 +01:00
David Banks
16e2bcf9dd Renamed kicad to 6502/v1 
Change-Id: I932c4bc803c41fe6a9090767733cd44da230f795
 2019-09-10 09:51:25 +01:00
David Banks
db6b20c696 Updated to kicad 5.1.4 
Change-Id: Ie4dcf4e2a2838c19be82e0fb09b6ff49b04564ac
 2019-09-10 09:49:25 +01:00
David Banks
e66b0b51c2 Z80: remove special command as it caused code overflow 
Change-Id: If3a71ea55503ac0edb8d476c05f4f909f0e3c605
 2019-08-20 09:39:49 +01:00
David Banks
efdd41a239 6502: Added special command to inhibit IRQ/NMI 
Change-Id: I6ba8a1b3b92e5852382d35eee7a59b6a9d7e63e8
 2019-06-15 17:50:29 +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
285697d175 6502: remove 40ns skew between phi1/phi2 outputs, as this erodes address hold time time from phi1 
Change-Id: Idd2b1418a18f6bb5cf2b553b6a069c42a0e64b97
 2018-12-21 17:25:37 +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
a277222012 PCB: Migrated to KiCad 5.0 
Change-Id: Ib035c47ddc7768d46feebc4e1ea05c04dbd125a6
 2018-11-20 12:06:06 +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
c1b0902f96 6502: Change din sampling from Phi0_b to Phi0_a 
Change-Id: Id1cf604cfa61dba7aae8da670a38e460a059e7bb
 2018-02-15 13:06:25 +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
David Banks
7954f86e41 Added build for a flipped version of Jason's level shifter, so USB comes out at the pin 1 end (better for Beeb) 
Change-Id: Icd48522640507469b43ca3545fa1c46f88b0f0bb
 2017-08-09 18:16:11 +01:00
David Banks
168e5637e9 Pinout change for LX9: DIP pins 37 and 38 needed swapping 
Change-Id: I3f96f2d7cd8a8640e4a6c60466067daccf1e0590
 2017-08-09 16:37:41 +01:00
David Banks
a4aa6df31a Added new top level generics to 6502 and 6809 designs 
Change-Id: I14d70471b97948c165210bebad88b60965531207
 2017-08-01 09:25:12 +01:00
David Banks
f2974d12df Swapped names of sw_interrupt_n and sw_reset_n (as they were wrong way around) 
Change-Id: I8819b4898be3beb36ec7f2ecb97f6797a7ab03b2
 2017-08-01 08:18:20 +01:00
David Banks
6415a81a40 On LX9 board, updated Tx=51 and Rx=55 
Change-Id: I5bcd032eab29ef93d36e8011fee673028042483f
 2017-07-29 19:55:27 +01:00
David Banks
f84780b304 Minor change to release.sh script 
Change-Id: I0f73afe8967909be1a7a3784c64555df2ed4eb16
 2017-07-28 15:07:12 +01:00
David Banks
7453cf4f9f LX9 support: massive refactor of the build system 
Change-Id: I75ff141a0d3b2c30a37d8f0e497f4f923e302b8b
 2017-07-26 14:59:20 +01:00
David Banks
78adf0030b LX9 support: corrected pin assignment in Z80CpuMonLX9Jason.ucf 
Change-Id: Iacf21daea16b68a3886eb68618016e76c8dc0998
 2017-07-26 09:45:01 +01:00
David Banks
79d890bcb9 LX9 support: in Z80CpuMon made the switch/led polarity configurable with generics 
Change-Id: I026bc8e56fe760b453edf970b33f6897a695d0d2
 2017-07-25 19:18:59 +01:00
David Banks
17acd5afdd LX9 support: updated Z80CpuMon ucf file - not final yet! 
Change-Id: I8dbf4f4012c3b43d8bdf07ca707d6d8b6ef8a1d1
 2017-07-25 19:17:55 +01:00
David Banks
0da1fa06bb LX9 support: work in progress 
Change-Id: I76249db20f992f92c5fc0454f698c40e578b5e54
 2017-07-25 17:34:19 +01:00
David Banks
c8f3d1f7f3 PCB: Cosmetic adjustment to IC positions 
Change-Id: Iacbcf8f106ab071ac2593f6fbe1cc5fea7863dbd
 2017-07-25 16:17:04 +01:00
David Banks
8bab6de3ab PCB: clened up silk screen 
Change-Id: I8b0d889cf32f0a2902b8bbf78c789f4d55838c1f
 2017-07-25 15:56:00 +01:00
David Banks
6893749ac1 Rotate board 180 + add mounting holes 
Change-Id: Ic19cff3e88082d146cbc73c1cf88c1302ec57baa
 2017-07-25 15:13:51 +01:00
David Banks
1c1505b2ad Initial check-in of an 6502 specfic level shifter for the LX9 Core board 
Change-Id: I439efad67f8b4152f7a149ea6c2af9056fc2b4ab
 2017-07-25 13:53:54 +01:00
David Banks
4d5f930a7f Rebuilt xc3s500e builds of v0.73 using seperate ip_core dir 
Change-Id: Ie38713b06da523c74f348e480ab8e6c95d5a86bd
 2016-10-24 18:01:44 +01:00
David Banks
74d3618b1a Seperate ipcore directories for 250 and 500 parts 
Change-Id: I726ff1bd3302a8918a71f069c0abf3251fe622aa
 2016-10-24 17:59:06 +01:00
David Banks
cc0e8fb051 Added xc3s500e builds of v0.73 
Change-Id: If4fa6d5293f7914f9aee4a944c9f407856c35372
 2016-10-24 14:35:48 +01:00
David Banks
4acc64bd51 Fixed Z80 mcs file (somehow a xcs3500e build was checked in) 
Change-Id: I6c60a382073e7c1029882fff03e16fa4c8f821c8
 2016-10-24 14:34:37 +01:00
David Banks
f64641f99c Added build scripts for xc3s500e 
Change-Id: Icc7990c3ee257d1511fa478fd0d2b3575362eb29
 2016-10-24 14:24:18 +01:00
David Banks
0692e204e8 Added 0.73 binary release 
Change-Id: Id00fe1189acf8c65af5d9ce4d09200a752dad58a
 2016-10-20 20:03:19 +01:00
David Banks
1d60e683b6 v0.73 - added srecord upload command 
Change-Id: I6b7f9c2a43794c7a6b8f7abd65fac33eb691dbf4
 2016-09-09 11:31:50 +01:00
David Banks
ceaeb932a7 Clean up white space 
Change-Id: I126fff11794dbd3d47c4dd87b9410b49212199ca
 2016-09-08 14:16:10 +01:00
David Banks
6291faa4bd Updated to 0249 of the Z80 core by TobiFlex to fix issues with Spectrum Keyboard 
Change-Id: I2d92c541cdb7feaad84bd3d37ec125594b6b47a8
 2016-08-22 14:46:41 +01:00
David Banks
de6f722978 Adjusted Din sampling point ~40ns later so it co-incides with Phi2 
Change-Id: Ibdd44b83a139b6560efc886e95714ee91daef3dc
 2016-08-01 16:34:47 +01:00