FDC Tutorial Problems
Posted: Tue Oct 13, 2009 8:55 pm
I am mostly using VirtualPC to test my OS, but today i used an old Packard Bell w/ a Pentium 75 mhz processor in it to test the FDC tutorial. For some reason it will not read the sectors. I have the strange feeling that this is due to the fact that the old machine has no dma controller on it, but i am unsure. also when i try to read sector 0 on virtualpc i think that it is not working properly because the boot signature is not at the end of the sector. I think i am doing everything correctly. when i started the series i copied the code by hand, but lately i am just copying and pasting the file contents to avoid errors so i dont understand why this is not working. Also, are there any plans currently to add a section on programming the controller w/out DMA? I want to add an option to not use the controller in case of old hardware but Im not sure how to handle that.