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QuestionNeed help with internal timing constraint in FPGAs Pin
Member 137693108-Apr-18 22:33
MemberMember 137693108-Apr-18 22:33 
GeneralModbus RTU with function code1 Pin
Member 105152258-Apr-18 22:08
professionalMember 105152258-Apr-18 22:08 
GeneralRe: Modbus RTU with function code1 Pin
Gerry Schmitz9-Apr-18 4:54
mveGerry Schmitz9-Apr-18 4:54 
QuestionRAM image of DVD? Pin
Member 79891227-Apr-18 4:35
MemberMember 79891227-Apr-18 4:35 
AnswerRe: RAM image of DVD? Pin
Gerry Schmitz7-Apr-18 8:04
mveGerry Schmitz7-Apr-18 8:04 
GeneralRe: RAM image of DVD? Pin
Member 79891228-Apr-18 22:26
MemberMember 79891228-Apr-18 22:26 
GeneralRe: RAM image of DVD? Pin
Gerry Schmitz9-Apr-18 3:05
mveGerry Schmitz9-Apr-18 3:05 
GeneralRe: RAM image of DVD? Pin
Member 79891229-Apr-18 3:30
MemberMember 79891229-Apr-18 3:30 
OK, so I have a DVD-ROM from which I can create an image file, aka "ISO file", residing on my harddisk / flash disk. This image file I can mount as RAMdisk so that I can access the files on that DVD-ROM as if it was a physical NTFS or FAT file system.

The text you quote states that the ISO file may be an image of a hard drive (with an NTFS or FAT file system), or a CD-ROM (with an ISO 9660 file system or derivatives) or floppy (with a FAT file system). Although the file system within that image file reside in RAM structures, read in from a single file created from a harddisk, CD-ROM or floppy, it will appear to file system requests as if it was a disk with an NTFS, ISO 9660 or FAT file system, with directories and format restrictions etc.

I see no indication whatsoever in the description that it allows direct access to physical sectors, or that it support device control for emulating physical drives. If it did, I am quite sure that it would be seen in the documentation.

Maybe ImDisk - in the good old "if it doesn't do what you want, modify it yourself" Open Source style - can be modified to appear as a physical CD/DVD drive with no implied file system structure, but providing a raw access to the sectors, and reacting sensible to all control signals that might be sent to a physical CD/DVD drive. If my task were to write drivers, I could probably do that. I did write a few driver in the DOS days; I never did for Windows.

If you have tried using ImDisk yourself, using some DVD/CD software accessing the RAM image as a physical drive - e.g. trying to burn files to the RAM disk as a CD-RW disk, ejecting the disk, responding to drive capabilites etc. - then you know better than I do. But then you probably would not refer to a description of functionality that is not what I am after.
GeneralRe: RAM image of DVD? Pin
Gerry Schmitz9-Apr-18 4:10
mveGerry Schmitz9-Apr-18 4:10 
AnswerRe: RAM image of DVD? Pin
Randor 11-Apr-18 16:21
professional Randor 11-Apr-18 16:21 
QuestionIs android or windows tablet any good for occasional coding? Pin
Kanter6665-Apr-18 23:57
professionalKanter6665-Apr-18 23:57 
AnswerRe: Is android or windows tablet any good for occasional coding? Pin
OriginalGriff6-Apr-18 0:07
communityengineerOriginalGriff6-Apr-18 0:07 
AnswerRe: Is android or windows tablet any good for occasional coding? Pin
Gerry Schmitz6-Apr-18 8:52
mveGerry Schmitz6-Apr-18 8:52 
AnswerRe: Is android or windows tablet any good for occasional coding? Pin
Eddy Vluggen9-Apr-18 4:50
professionalEddy Vluggen9-Apr-18 4:50 
AnswerMessage Closed Pin
26-Sep-18 15:15
Memberphilipmorgan26-Sep-18 15:15 
QuestionWin 10 Crash again (captured DMP file) - hw Pin
raddevus17-Mar-18 8:37
communityengineerraddevus17-Mar-18 8:37 
AnswerRe: Win 10 Crash again (captured DMP file) - hw Pin
Munchies_Matt17-Mar-18 8:50
MemberMunchies_Matt17-Mar-18 8:50 
GeneralRe: Win 10 Crash again (captured DMP file) - hw Pin
raddevus17-Mar-18 9:24
communityengineerraddevus17-Mar-18 9:24 
AnswerRe: Win 10 Crash again (captured DMP file) - hw Pin
Gerry Schmitz17-Mar-18 12:22
mveGerry Schmitz17-Mar-18 12:22 
AnswerMessage Closed Pin
12-May-18 8:05
Memberpetkins12-May-18 8:05 
QuestionMessage Closed Pin
25-Feb-18 20:24
MemberPhillipsLyons25-Feb-18 20:24 
AnswerRe: Confused about cat5,cat5e, and cat6 Ethernet cables Pin
Richard MacCutchan25-Feb-18 23:01
communityengineerRichard MacCutchan25-Feb-18 23:01 
GeneralRe: Confused about cat5,cat5e, and cat6 Ethernet cables Pin
Richard Deeming26-Feb-18 2:27
communityengineerRichard Deeming26-Feb-18 2:27 
GeneralRe: Confused about cat5,cat5e, and cat6 Ethernet cables Pin
Richard MacCutchan26-Feb-18 2:33
communityengineerRichard MacCutchan26-Feb-18 2:33 
QuestionFMBomb Beginner Project - alternative to NS73M Breakout Board Pin
StudiousMaximus18-Feb-18 5:01
MemberStudiousMaximus18-Feb-18 5:01 

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