Search found 125 matches

by Whopper
Mon Jun 10, 2019 7:01 pm
Forum: Compatibles Corner
Topic: Q68 I2C addresses.
Replies: 16
Views: 1703

Re: Q68 I2C addresses.

The Q68 manual is correct regarding i2C addresses. Note that the clock register is output only, nothing you can read there. Peter, Thank you for this. Now I need to check the actual pins and their levels, but I would have needed to do that anyway. If the CLK ($1C1C0) is un readable, how do you chec...
by Whopper
Sun Jun 09, 2019 5:28 pm
Forum: Compatibles Corner
Topic: Q68 I2C addresses.
Replies: 16
Views: 1703

Re: Q68 I2C addresses.

Derek, Currently I am using SuperBasic PEEK & POKE to control the IO ports. I intend to bitbilt the ports to drive the Q68s I2C pins directly. The pins themselves will drive a level changer to the desired voltage for the external device. The coding is being done in assembler and C. There are no ...
by Whopper
Sat Jun 08, 2019 7:07 pm
Forum: Compatibles Corner
Topic: Q68 I2C addresses.
Replies: 16
Views: 1703

Re: Q68 I2C addresses.

Derek, Thanks for the reply. I have also examined the Q68 manual and that section. However While I can control $1C1C4, i.e. set it to 1 and read back a 1, then set it to 0 and read back a 0, I cannot set / reset $1C1C0. It remains a 0 no mater what I do. So I was wondering if the manual was in error...
by Whopper
Sat Jun 08, 2019 4:52 pm
Forum: Compatibles Corner
Topic: Q68 I2C addresses.
Replies: 16
Views: 1703

Q68 I2C addresses.

Hi All,

Please could someone confirm for me the memory addresses for the I2C clock and I2C data lines.

I seem to be able to control $1C1C4 & $1C1C6 but not $1C1C0.

Thanks,

Whopper
by Whopper
Fri May 24, 2019 8:58 pm
Forum: For Sale
Topic: Mirical Systems Gold card for sale
Replies: 9
Views: 1308

Re: Mirical Systems Gold card for sale

Doesn't look like this seller is having much luck. :D

Edited - for spelin
by Whopper
Thu May 23, 2019 10:09 pm
Forum: For Sale
Topic: Mirical Systems Gold card for sale
Replies: 9
Views: 1308

Re: Mirical Systems Gold card for sale

It's for sale for more than 3 months and it's been relisted 4 times. It is "untested" . If I remember correctly it started at 200 and previously the seller also sold a QL so he could have tested it, if the QL was in working order. Andrew, Perhaps a low offer might be made. I already have ...
by Whopper
Thu May 23, 2019 5:43 pm
Forum: For Sale
Topic: Mirical Systems Gold card for sale
Replies: 9
Views: 1308

Mirical Systems Gold card for sale

Hi All,

I just noticed a Mirical Systems Gold card for sale on eBay. https://www.ebay.co.uk/itm/Miracle-Systems-Gold-Card-disc-interface-for-Sinclair-QL-computer-/264326681793?_trksid=p2385738.m4383.l4275.c10

Whopper


Edit - And there aren't any bids yet. !!!!!
by Whopper
Thu May 23, 2019 5:15 pm
Forum: General QL Chat
Topic: The Sinclair QL Series
Replies: 11
Views: 1593

Re: The Sinclair QL Series

Hi All,

Thank you for your help. I now have the complete series of books. :D


Whopper
by Whopper
Thu May 09, 2019 11:13 pm
Forum: General QL Chat
Topic: The Sinclair QL Series
Replies: 11
Views: 1593

Re: The Sinclair QL Series

Norman, Thank you for your links. I found two books that I don't have 'Profiting from the Sinclair QL' & 'Introduction to Superbasic on the Sinclair QL' I was able to order both. One seller was offering the Intro to Superbasic for £113.16 (plus P&P) a bit steep for me. Sometimes I wish I'd d...
by Whopper
Thu May 09, 2019 9:14 pm
Forum: General QL Chat
Topic: The Sinclair QL Series
Replies: 11
Views: 1593

The Sinclair QL Series

Hi, I have been collecting books in 'The Sinclair QL series'. Currently I have - Making the most of the Sinclair QL Word Processing with the Sinclair QL ** Advanced programming with the Sinclair QL ** Introducing the Sinclair QL Database Management on the Sinclair QL Desktop computing with the Sincl...