SYM-1 and RAE EPROM jumper question

[jaevans]

Greetings,

Hopefully, I am not bugging folks with my continuing questions. One last one for awhile. I was able to burn the RAE code into two TI 2532JL-30 EPROMS but have a question about the jumper settings in the RAE-1 Reference Manual, Section 10.0 paragraph 4. The second line of the jumper settings entries has the following configuration. D-1 L-46, 46* . The asterisk refers to a note on the last page of the section for earlier boards where 46 and 47 may not be labeled and clarifies those points. Comparing the line above to other lines for the single 8K ROM is what confuses me. I am wondering if the 46* entry is correct as 46 on that line is mentioned twice whereas on another line with the asterisk, the entry looks like M-15, 16, 46, 47*.

So, I am wondering if the line in question should be D-1 L-46, 46* or D-1 L-46, 47*. If anyone has added these ROMs and can clarify, I'd appreciate. Otherwise, (and I plan to do this anyway) I will need to dig into the schematic and decypher just what is going on with all these jumper settings to make sure I get the ROMs located in the correct location.

Meanwhile, I've designed a 32K add on circuit for the SYM-1 and am awaiting some connectors to build it.

Thanks,
John

[jaevans]

OK, I think I have it figured out - the RAE Ref Manual is in error. After going through and figuring out how the jumpers work for the 8K Monitor ROM and the Basic ROM, I was able to interpret the given jumper settings for each RAE ROM (B000 and E000).

The jumper settings for the B000-BFFF RAE ROM are C-1, G-2, and L-46, 47 (vs L-46, 46)
The jumper settings for the E000-EFFF RAE ROM are D-1, H-3, and M-15, 16

Now to change them and plug in my programmed 2532 EPROMs to see if the Assembler/Editor works. Of course, I only have 4K so I won't able to do much other than test to see if the EPROMs work.

John

[BigEd]

I had a look at the two manuals:
http://www.6502.org/trainers/synertek/r ... df#page=47
http://www.6502.org/trainers/synertek/m ... df#page=53

and I agree with your reading: connecting L and M each to two decode lines allows for sockets U22 and U23 to take 4K ROMs, so L to 46 and 47 makes sense. But connecting L to 46 and to 46 makes no sense!

However, I'm not familiar with the hardware, so by all means wait for a second opinion.

[jaevans]

BigEd wrote:

However, I'm not familiar with the hardware, so by all means wait for a second opinion.

A second opinion would be nice. I don't think I'll break anything by trying.

Also in section 10.0 it mentions removing Jumpers D-3 and H-6 but I also believe I need to remove C-2 and G-6. M-13 and L-12 should also be removed but they weren't jumpered on my SYM-1 board although they are shown as jumpered in the delivered configuration.

Thanks much,
John

[jaevans]

OK, all is well

I first removed the jumpers I felt I needed to remove (C-2, G-6, D-3, H-6) and tested to see if the monitor and Basic worked (they do). Then added jumpers (C-1, G-2, L-46,47, D-1, H-3, and M-15,16), popped in the TI 2532JL-30 programmed EPROMs, typed G B000, and got the RAE prompt. I tested it out a bit and it works - so make a few changes to the RAE section 10.0 directions and you should be fine :

.G B000

RAE V1.0
COPYRIGHT 1979 SYNERTEK SYSTEMS CORP.


0200-0BFC 0C00-0EFC 0F00
0200 0C00
>10 LDX #0
>20 TXA
>30 LOOP STA $300,X
>40 DEX
>50 BNE LOOP
>PRINT
0010 LDX #0
0020 TXA
0030 LOOP STA $300,X
0040 DEX
0050 BNE LOOP
//

>30LOOP STA $300,X
>PRINT
0010 LDX #0
0020 TXA
0030 LOOP STA $300,X
0040 DEX
0050 BNE LOOP
//

>PRINT 20 40
0020 TXA
0030 LOOP STA $300,X
0040 DEX
//

>ASSEMBLE LIST
0050 BNE LOOP
!07 AT LINE 0050/80

>60 .EN
>ASSEMBLE LIST

0200- A2 00 0010 LDX #0
0202- 8A 0020 TXA
0203- 9D 00 03 0030 LOOP STA $300,X
0206- CA 0040 DEX
0207- D0 FA 0050 BNE LOOP
0060 .EN


LABEL FILE: [ / = EXTERNAL ]


LOOP=0203
//0000,0209,0209

[BigEd]

Great!