I have an older (2004) Dynatem CPU which uses an On-board CF slot which the CPU boots and runs a Linux (RedHat 9) operating system. We have been using a Lexar 2GB CF card (CF2GB-80-380) which currently works just fine.
The Lexar part has none gone obsolete, and we are trying to specify a 2GB CF card to replace it. We tried experimenting with a Sandisk (Ultra P/N SDCFH-002G-A11) but the CPU Card would fail to read the partition tables on the CF device,
We contacted the vendor, and they informed us that the Card slot is not set up for DMA transfers as some of the control line for DMA are not brought through to the CF slot, specifically, DMA REQ and ACK.
So, does Sandisk make a CF card that will work natively in PIO mode and ignore the missing DMA control signals?
Thanks for you help.