Due some feedback to one of my oldest projects "Sys-Check V2.2" I create two new versions of Sys-Check. They´re simply called
- Sys-Check V2.2 XL and
- Sys-Check V2.2 XE
Technically there´s no difference to the standard version. The standard version is also offered furthermore. All new versions of the firmware will work on all Sys-Check versions and revisions like ever promised. While Sys-Check V2.2 "Standard" remains usable for all Atari XL computers (except 1200XL) and all XE computers with ECI-Port, the new versions are specialised for XL or XE models only.
Both new solutions have distance bolts to have the PCB secured for continuous usage - a lot of users of Sys-Check reported me they never use it for diagnostics, but main time for external memory expansion or a different O.S. like for SIO2BT and others.
The reasons for these new versions are:
- Some XL owner wished to have a Sys-Check version which is not upright assembled to easier access the switches
- Some XL users want to have the possibility to add a second PBI device, for example a harddisk-interface
- Some XE users need the possibility to connect a PBI device to your XE computer
Here are the pictures of Sys-Check V2.2 XL
The PBI connector at the end of the PCB is a 1:1 connection to the computer´s PBI. You can plug, for example, the Turbo Freezer 2011 behind Sys-Check XL and it will work. Of course you got problems when you enable OLD-OS or the memory expansion at the Turbo Freezer device AND also enable OS-ROM external support by Sys-Check and/or the memory expansion by Sys-Check. Only one external OS or one external memory expansion should be enabled.
And some pictures of Sys-Check V2.2 XE
The XE version has a PBI connector, which is mostly 1:1 compatible to the XL PBI. There are four signals, which aren´t existing at the XE ECI connector: RAS, CAS, EXTENB and RDY (Ready). These signals have a 6k8 pull-up resistor each to gain maximum compatibility. The most actual PBI devices don´t need one of these four signals and run fine. I found only the older Turbo Freezer II with DRAM memory expansion, which won´t run, because it needs RAS for the memory expansion part. But maybe more old PBI devices won´t run. This limitation always exists on any XE ECI to PBI adapters.
I will assemble a few units of each version in the next 2-3 weeks. Watch out my most time each week updated info PDF found in this post