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Search: Posts Made By: PR77
Forum: Coders. C/C++ 30 May 2019, 20:29
Replies: 7
Views: 575
Posted By PR77
Hey thanks... Just registered...

Hey thanks... Just registered...
Forum: Coders. C/C++ 29 May 2019, 12:26
Replies: 7
Views: 575
Posted By PR77
Thanks, it now works!

Thanks, it now works!
Forum: Coders. C/C++ 25 May 2019, 23:29
Replies: 12
Views: 1,519
Posted By PR77
Anyway know why VBCC throughs warning 214? Better...

Anyway know why VBCC throughs warning 214? Better still, what is wrong with the following printf(…)


printf("cd_BoardAddr = 0x%X\n", myCD->cd_BoardAddr);
Forum: Coders. C/C++ 25 May 2019, 23:20
Replies: 7
Views: 575
Posted By PR77
VBCC and pointer dereferencing

I'm trying to finalise the code for my 68000 CPU Relocator with FLASH kickstart support (https://github.com/PR77/68000_Relocator_FLASH_Kickstart) however I am stuck on some pointer arithmetic. Here...
Forum: support.Hardware 20 May 2019, 22:21
Replies: 24
Views: 1,691
Posted By PR77
I've made several updates and now have a final...

I've made several updates and now have a final PCB. Check out the GitHub for those interested.
Forum: Hardware mods 15 May 2019, 15:38
Replies: 6
Views: 718
Posted By PR77
Nice one!

Nice one!
Forum: support.Hardware 18 April 2019, 14:22
Replies: 9
Views: 928
Posted By PR77
I'm really excited to see more on the A314. Keep...

I'm really excited to see more on the A314. Keep up the great work.
Forum: support.Hardware 20 March 2019, 21:52
Replies: 10
Views: 433
Posted By PR77
I would then try DiagROM and run a memory test to...

I would then try DiagROM and run a memory test to exercise U34 and U35 for the ChipRAM ADDR and CTRL paths. If the issue is 100% occurring at the same point and the same part of the image is...
Forum: support.Hardware 20 March 2019, 21:36
Replies: 10
Views: 433
Posted By PR77
R3/5 have A17 pinned differently so that explains...

R3/5 have A17 pinned differently so that explains the pull ups (or pull downs- depending on where in the memory space you are addressing. R6 and up have the ROM socket routed for larger ROMs sizes...
Forum: support.Hardware 20 March 2019, 14:01
Replies: 10
Views: 433
Posted By PR77
Few things to check; 1. What timing is the...

Few things to check;

1. What timing is the Flash Chip? As you mentioned timing might be an issue but the original ROM was around 120ns (I think) and given other ROM images are OK I suspect this is...
Forum: support.Hardware 16 March 2019, 20:50
Replies: 86
Views: 11,304
Posted By PR77
Thanks for the offer... The design is in Github...

Thanks for the offer... The design is in Github (PR77) so feel free to grab a copy and post a design, I'm very interested to see how others bring their flair to the design.

While you're at it,...
Forum: Hardware mods 25 February 2019, 14:08
Replies: 53
Views: 5,790
Posted By PR77
Fancy helping me with a layout? I don't get so...

Fancy helping me with a layout? I don't get so much pleasure with laying out PCBs.
Forum: Hardware mods 19 February 2019, 10:19
Replies: 53
Views: 5,790
Posted By PR77
Wow! Anyone know if the PCB will fit in the...

Wow! Anyone know if the PCB will fit in the Checkmate 1500 case? I am waiting on 2 of those bad boys!
Forum: Hardware mods 03 February 2019, 13:15
Replies: 202
Views: 55,798
Posted By PR77
Check out this; ...

Check out this;

https://github.com/PR77/68000_Relocator_FLASH_Kickstart/blob/master/README.md
Forum: support.Hardware 10 January 2019, 21:47
Replies: 24
Views: 1,691
Posted By PR77
After a few months I finally got some time to...

After a few months I finally got some time to revisit this little project. Check out the latest here;

https://github.com/PR77/68000_Relocator_FLASH_Kickstart
Forum: Coders. Asm / Hardware 31 December 2018, 14:00
Replies: 18
Views: 2,394
Posted By PR77
I've put together a based C program (vbcc) to...

I've put together a based C program (vbcc) to exercise an IO Port on an accelerator card I've developed. Here is the code;
...
Forum: Hardware mods 30 November 2018, 21:19
Replies: 176
Views: 22,466
Posted By PR77
Those motherboard chip RAM adapters look...

Those motherboard chip RAM adapters look interesting...
Forum: Hardware mods 29 October 2018, 15:31
Replies: 4,059
Views: 402,526
Posted By PR77
Will check it out... Have you been able to...

Will check it out... Have you been able to program the SPI Flash via the CPLD JTAG interface in iMPACT? I'm not that experienced with iMPACT.


As a first step, are you planning to read the SPI...
Forum: Hardware mods 29 October 2018, 14:53
Replies: 4,059
Views: 402,526
Posted By PR77
Sounds awesome... That was my idea with the...

Sounds awesome... That was my idea with the 68SEC000 design but put it on hold as I don't have a verilog SPI driver. So instrad I made this;

...
Forum: Hardware mods 29 October 2018, 13:50
Replies: 4,059
Views: 402,526
Posted By PR77
Have you seen this already; ...

Have you seen this already;


http://wandel.ca/homepage/execdis/exec_disassembly.txt
http://eab.abime.net/showthread.php?t=77294


It is from KS1.2 but when digging into this while designmy my...
Forum: Coders. C/C++ 22 October 2018, 15:23
Replies: 12
Views: 1,519
Posted By PR77
Thanks! Now compiled and linked. Will start...

Thanks! Now compiled and linked. Will start debugging when I get some time. Thanks for your help phx!
Forum: Hardware mods 22 October 2018, 11:54
Replies: 4,059
Views: 402,526
Posted By PR77
Thanks. The polling was only a question, I didn't...

Thanks. The polling was only a question, I didn't think this was being done. I'm really impressed with your TF534 work, excellent job. :great

P.S., I actually slowed it down my IDE interface to...
Forum: Hardware mods 22 October 2018, 09:46
Replies: 4,059
Views: 402,526
Posted By PR77
Plasmab, which register did you manipulate to...

Plasmab, which register did you manipulate to trick the INT2 is asserted? Additionally, is this register polled cyclically by the OS? If yes, wouldn't the INT2 assertion still be faster (I understand...
Forum: Coders. C/C++ 20 October 2018, 13:44
Replies: 12
Views: 1,519
Posted By PR77
Thanks PHX! Now compiles but fails to link; ...

Thanks PHX! Now compiles but fails to link;

C:\Users\Paul\Documents\Amiga\FLASH_KICKSTART\Rev1\Software>vc FlashKickstart.c
> printf("cd_BoardAddr = %lx\n", myCD->cd_BoardAddr);
warning...
Forum: Hardware mods 20 October 2018, 08:50
Replies: 4,059
Views: 402,526
Posted By PR77
I've often thought about this too... and also to...

I've often thought about this too... and also to program SPI / Parallel Flash... But no time... :crying
Forum: Coders. C/C++ 16 October 2018, 21:57
Replies: 12
Views: 1,519
Posted By PR77
I had that but for some reason NULL seems to be...

I had that but for some reason NULL seems to be redefined;

C:\Users\Paul\Documents\Amiga\FLASH_KICKSTART\Rev1\Software>vc FlashKickstart.c
>#define NULL 0
error 272 in line 30 of...
Forum: Coders. C/C++ 16 October 2018, 21:55
Replies: 12
Views: 1,519
Posted By PR77
It is the very first cut of the code. I have no...

It is the very first cut of the code. I have no expectation that it will compile, I just cant seem to get past the issue with the compile complaining about the function prototypes.
Forum: Coders. C/C++ 16 October 2018, 20:24
Replies: 12
Views: 1,519
Posted By PR77
VBCC and enums

Does anyone know if VBCC supports enum types? I'm using the following version;

vbcc V0.9f (c) in 1995-2017 by Volker Barthelmann
vbcc code-generator for m68k/ColdFire V1.11 (c) in 1995-2017 by...
Forum: Hardware mods 11 October 2018, 13:00
Replies: 176
Views: 22,466
Posted By PR77
Take a look here, this is what I've done; ...

Take a look here, this is what I've done;


https://github.com/PR77/A500_ACCEL_RAM_IDE-Rev-2
Forum: Hardware mods 20 September 2018, 08:53
Replies: 4,059
Views: 402,526
Posted By PR77
Nice! Very nice!

Nice! Very nice!
Forum: Hardware mods 17 September 2018, 09:42
Replies: 4,059
Views: 402,526
Posted By PR77
Ooooo. I didn't know that. I actually was using...

Ooooo. I didn't know that. I actually was using my 68SEC000 accelerator (but I didn't want to diverge too much from thread topic) and my OCS patient 0 Amiga 500 only has 512K ChipRAM. I was actually...
Forum: Hardware mods 16 September 2018, 21:41
Replies: 4,059
Views: 402,526
Posted By PR77
Can anyone confirm if "State Of The Art" demo...

Can anyone confirm if "State Of The Art" demo runs with KS 3.1 on an accelerated Amiga 500 (TF530 preferably) with a GoTek? My system read 2 tracks and then bombs out.
Forum: support.Hardware 13 September 2018, 20:20
Replies: 24
Views: 1,691
Posted By PR77
So, I ordered some DIP AM29F040B (used these many...

So, I ordered some DIP AM29F040B (used these many moons ago when developing PC/104 HW along with the AM186ES) and some nice portable C code functions to control the FLASH. Waiting on these to arrive...
Forum: support.Hardware 10 September 2018, 08:53
Replies: 24
Views: 1,691
Posted By PR77
I haven't tested the Verilog yet, but it...

I haven't tested the Verilog yet, but it currently with Autoconfig 512K legally when needing to program the FLASH chips. When no programming is necessary then the Autoconfig cycle (after reset) will...
Forum: Hardware mods 10 September 2018, 08:40
Replies: 4,059
Views: 402,526
Posted By PR77
Nice! I think I gotta get myself a proper LA.

Nice! I think I gotta get myself a proper LA.
Forum: support.Hardware 09 September 2018, 00:14
Replies: 24
Views: 1,691
Posted By PR77
https://github.com/PR77/68000_Relocator_FLASH_Kick...

https://github.com/PR77/68000_Relocator_FLASH_Kickstart
Forum: support.Hardware 08 September 2018, 09:33
Replies: 24
Views: 1,691
Posted By PR77
Thanks for all this great info. I was a bit...

Thanks for all this great info. I was a bit overwhelmed with the details to be honest. :bowdown Have you designed accelerators / CPU cards? There is some fairly details points there. Given I will use...
Forum: support.Hardware 07 September 2018, 22:14
Replies: 24
Views: 1,691
Posted By PR77
Nice idea. Baby steps first; I see no reason that...

Nice idea. Baby steps first; I see no reason that the design could not support it from a capability point of view; the Z2 config could support a Vector to a DiagArea block. This is how the ACA500+...
Forum: support.Hardware 07 September 2018, 21:00
Replies: 24
Views: 1,691
Posted By PR77
Agree, that's is my plan now. Always wise and...

Agree, that's is my plan now. Always wise and constructive feedback Toni! At least the 512K should Autoconfig outside of the free memory pool based at 0x20000 (I will double check my 68SEC000...
Forum: support.Hardware 06 September 2018, 19:03
Replies: 24
Views: 1,691
Posted By PR77
The more I think about it, the more I'm leaning...

The more I think about it, the more I'm leaning towards the ZII space solution. The FLASH will only occupy ZII space when in a programming session. This would be active either by a physical jumper or...
Showing results 1 to 40 of 162

 
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