Dual CF card board

[Willy De la Court]

Has anyone build this one https://oshwlab.com/lgszolnoki/new-project_2024-07-27_12-25-05 ?

I build it and the slot 0 cf card is recognized but the slot 1 is never seen with RomWBW 3.4 and 3.5

Any help to get this working is appreciated.

Willy

[Wayne Warthen]

For RCBus Z80, RomWBW is configured to look for a single IDE interface at 0x10.  The additional IDE interface of this board is non-standard.  Adding the following to your config file and building a custom ROM should allow RomWBW to recognize both IDE ports of this board.

IDECNT .SET 2 ; IDE: NUMBER OF IDE INTERFACES TO DETECT (1-3), 2 DRIVES EACH
IDE1MODE .SET IDEMODE_RC ; IDE 1: DRIVER MODE: IDEMODE_[DIO|DIDE|MK4|RC]

IDE1BASE .SET $18 ; IDE 1: IO BASE ADDRESS

Thanks, Wayne

[Willy De la Court]

Thanks Wayne I will try that and report back. After looking at the code I had a suspiciion this was a non standard board but wanted somebody smater than me to confirm it.

[Willy De la Court]

Confirmed that works thanks again Wayne for the fast response.

Willy

[Mark Pruden]

For dual CF I use the following adapter which supports the master / slave on a single IDE interface

https://www.aliexpress.com/item/1005004672188280.html

[Willy De la Court]

Mark,

The only way I got that one to work was using two card one with the jumper set to master/slave and the other with the jumper to slave/master. Which defeats the point of the exercise which is using only one slot on the back plane.

The adapter contains a second set of pads on the back for a CF card connector and I soldered it on and used it with https://smallcomputercentral.com/sc729-rcbus-compact-flash-module/ but every time I insert a card in the second slot the system just hangs and does not react anymore.

Willy.

[Mark Pruden]

Note a similar discussion the the of dual CF adapter board exists on this other thread. If you read this check there for some more info.

https://groups.google.com/g/rc2014-z80/c/3HEK2Da6F7I