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- Updated DMA Driver
- Updated PCF I2C Driver
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Wayne Warthen
2023-08-02 13:21:52 -07:00
parent d1a5c66147
commit 7835eb5deb
34 changed files with 248 additions and 149 deletions
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@@ -2308,26 +2308,35 @@ This application understands both FAT filesystems as well as CP/M filesystems.
* Long filenames are not supported. Files with long filenames will
show up with their names truncated into the older 8.3 convention.
* A FAT filesystem can be located on floppy or hard disk media. For
hard disk media, the FAT filesystem must be located within a valid
FAT partition.
hard disk media, a valid FAT Filesystem partition must exist.
* Note that CP/M (and compatible) OSes do not support all of the
filename characters that a modern computer does. The following
characters are **not permitted** in a CP/M filename:
`< > . , ; : = ? * [ ] _ % | ( ) / \`
The FAT application does not auto-rename files when it encounters
invalid filenames. It will just issue an error and quit.
Additionally, the error message is not very clear about the problem.
## FAT Filesystem Preparation
In general, you can create media formatted with a FAT filesystem on
your RomWBW computer or on your modern computer. We will only be
discussing the RomWBW-based approach here.
In the case of a floppy disk, you can use the `FAT` application to
format the floppy disk. For example, if your floppy disk is on RomWBW
disk unit 2, you could use `FAT FORMAT 2:`. This will overwrite the
floppy with a FAT filesystem and all previous contents will be lost.
Once formatted this way, the floppy disk can be used in a floppy drive
attached to a modern computer or it can be used on RomWBW using the
In the case of a floppy disk, you can use the `FAT` application to
format the floppy disk. The floppy disk must already be physically
formatted using RomWBW FDU or equivalent. If your floppy disk is on
RomWBW disk unit 2, you could use `FAT FORMAT 2:`. This will overwrite
the floppy with a FAT filesystem and all previous contents will be lost.
Once formatted this way, the floppy disk can be used in a floppy drive
attached to a modern computer or it can be used on RomWBW using the
other `FAT` tool commands.
In the case of hard disk media, it is necessary to have a FAT
partition. If you prepared your RomWBW hard disk media using the
disk image process, then this partition will already be present and
disk image process, then this partition will already be defined and
you do not need to recreate it. This default FAT partition is located
at approximately 512MB from the start of your disk and it is 384MB in
size. So, your hard disk media must be 1GB or greater to use this
@@ -2375,8 +2384,13 @@ If your RomWBW system has multiple disk drives/slots, you can also just
create a disk with your modern computer that is a dedicated FAT
filesystem disk. You can use your modern computer to format the disk
(floppy, CF Card, SD Card, etc.), then insert the disk in your RomWBW
computer and access if using `FAT` based on its RomWBW unit number.
computer and access it using `FAT` based on its RomWBW unit number.
**WARNING**: Microsoft Windows will sometimes suggest reformatting
partitions that it does not recognize. If you are prompted to format
a partition of your SD/CF Card when inserting the card into a Windows
computer, you probably want to select Cancel.
## FAT Application Usage
Complete instructions for the `FAT` application are found in $doc_apps$.