Search found 158 matches

by tzok
Wed Sep 05, 2018 9:01 pm
Forum: ST
Topic: C070243 REV.H
Replies: 0
Views: 1147

C070243 REV.H

520ST C070243 REV.H 1986
1MB MOD
by tzok
Wed Sep 05, 2018 8:58 pm
Forum: STE
Topic: CA401177 - STE
Replies: 2
Views: 2076

Re: CA401177 - STE

1040STE CA401177 1991 unknown revision.
by tzok
Tue Sep 04, 2018 7:57 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 49
Views: 13236

Re: no-software internal RTC

If there will be interest I may make a few units, but it was intended to be a DIY project. That is why I'm using a ready to use modules, rather than a custom PCB. It requires an Arduino Mini Pro or Nano V3 (or clone) and a "DS3231 for PI" RTC breakout board. Only very basic soldering skills are requ...
by tzok
Tue Sep 04, 2018 7:00 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 49
Views: 13236

Re: no-software internal RTC

It is ready... 8165213200_1536065036-800x451.jpg 2757590500_1536065030-800x451.jpg ... and fits inside STe: 7399977500_1536065051-800x451.jpg Edit by IngoQ: Images scaled and uploaded to forum, high-res pictures available here: https://obrazki.elektroda.pl/8165213200_1536065036.jpg https://obrazki.e...
by tzok
Mon Sep 03, 2018 12:19 pm
Forum: ATARI FOR SALE & WANTED
Topic: WANTED - MFM drive for Supra drive
Replies: 14
Views: 3650

Re: WANTED - MFM drive for Supra drive

Drive on the photo is Fuji Electronic FK309-26 and it was a 21MB drive. C: 615 H: 4 S: 17 PC: 616 LZ: 614 BS: 512 I've been using different MFM drives in MEGAFILE 60, and only thing to be noticed is most MFM drives from PCs are set as ID=1, while MEGAFILE, and probably SUPRA too, will require ID=0. ...
by tzok
Mon Sep 03, 2018 11:21 am
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 49
Views: 13236

Re: no-software internal RTC

Last update (hope so). For TOS 1.x it requires STE_FIX to work, so it only works on STe with TOS 1.06 and 1.62. On TOS 2.06 it doesn't require any software, so it should work on any ST running this version of TOS. Code after clean up: /****************************************************************...
by tzok
Sun Sep 02, 2018 8:58 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 49
Views: 13236

Re: no-software internal RTC

Today I've discovered two things: 1) bit-mask for reading hour from ds3231 is 1 bit too short, and essentially unnecessary, 2) on TOS 1.62 it is not the CONTROL.ACC what polls the IKBD clock, but... STE_FIX.PRG (despite it is only for TOS 1.06, and here it displays that it is not required for this T...
by tzok
Wed Aug 29, 2018 4:02 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 49
Views: 13236

Re: no-software internal RTC

...and fully featured version, with ability to set the RTC using CONTROL.ACC: /****************************************************************** Created with PROGRAMINO IDE for Arduino - 06.08.2018 15:23:03 Project : Atari ST IKBD clock injector with DS3231 RTC Libraries : SoftwareSerial, Wire Auth...
by tzok
Wed Aug 29, 2018 11:12 am
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 49
Views: 13236

Re: no-software internal RTC

Here is the working code (without option to set RTC): /****************************************************************** Created with PROGRAMINO IDE for Arduino Project : Atari ST IKBD clock injector with DS3231 RTC Libraries : SoftwareSerial, Wire Author : tzok Description : ARD_RX0 from KB_5, ARD...
by tzok
Tue Aug 28, 2018 10:17 pm
Forum: RTC (Real time clock)
Topic: no-software internal RTC
Replies: 49
Views: 13236

Re: no-software internal RTC

Last time: TOS calculates date starting from year 1980 - it is stored as 0 in 7 bits provided for year in word for date (stays for all versions). TOS 1.xx adds $80 to it when writes to IKBD, and subs same after reading. Not 'should' , it does it. And that's what limits year span to only 20 years - ...

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