compactflash.device V1.40 - PCMCIA CompactFlash driver for Amiga 600/1200. Fork of driver/media/CFD133.lha.
CHANGES IN 1.40 (12.04.2026)
============================
Driver:
* CIS gate accepts only known CompactFlash device types (github issue/38)
- Accepts cards whose CIS reports device type 0x0D (FUNCSPEC) or
0x05 (FLASH), the two types CompactFlash cards are known to use.
- Other memory-card types are rejected early, so the driver no
longer tries ATA IDENTIFY on cards that are not expected to
behave like ATA devices and will not get stuck on them.
Others:
* Rebuild by vasm 2.0e
FEATURES
========
* Supports CompactFlash, MicroDrive, and various adapters (SD, MemoryStick, SmartMedia)
* TD64 and SCSI emulation support
* Works with fat95 filesystem for FAT32 support, not excluding Amiga native
(ffs, sfs, pfs) filesystems
* Serial debug output for troubleshooting (Flags = 8)
* Transfer speeds up to 2.2 MB/s read, 1.9 MB/s write
(in multi-sector mode if firmware supports it or with Flags = 16 override)
REQUIREMENTS
============
* Amiga 600 or 1200 with PCMCIA slot (A1200 tested)
* AmigaOS 2.0 or higher (3.2.3 tested)
* "CompactFlash to PCMCIA/ATA" adapter card (see images/cf-type-1.jpg, images/cf-type-2.jpg)
or SD-to-CF adapter (see images/sd-cf-adapter.jpg)
* fat95 filesystem (disk/misc/fat95.lha) recommended
INSTALLATION
============
Two versions of the driver are included:
compactflash.device 11308 bytes Driver with debug to serial console flag support
compactflash.device.small 8628 bytes Driver without debug to serial console support
Choose based on your needs:
- Use the full version if you need serial debug output (Flags = 8)
- Use small for minimal memory footprint (rename to compactflash.device)
Steps:
1. Copy devs/compactflash.device to DEVS:
(or copy compactflash.device.small as DEVS:compactflash.device)
2. Copy c/CFInfo to C: (optional, card info utility)
3. Have fat95 installed on your system
4. Mount the drive by double-clicking devs/CF0
For OS 3.5+:
Copy def_CF0.info to sys:prefs/env-archive/sys and env:sys
MOUNT FLAGS
===========
Set in CF0 mountlist (can be combined, e.g. Flags = 24 for debug + enforce):
Flags = 0 /* default */
Flags = 1 /* "cfd first" hack for PCMCIA conflicts with other drivers */
Flags = 2 /* unused - was "skip invalid PCMCIA signature" (v1.37+) */
Flags = 4 /* use CardResource API instead of direct chipset access */
Flags = 8 /* output init messages to serial port at 9600 baud (v1.35+ full build) */
Flags = 16 /* force 256 sector transfers regardless of card capability (v1.35+) */
Flags = 32 /* skip multi-sector override auto-detection, use firmware value (v1.37+) */
SERIAL DEBUG EXAMPLE
====================
With Flags = 8, connect serial cable and monitor at 9600 baud:
[CFD] Card inserted
[CFD] Identifying card...
[CFD] Reset
[CFD] Configuring HBA
[CFD] ..done
[CFD] Setting voltage
[CFD] Voltage: 5V
[CFD] CIS gate
[CFD] ..DEVICE: type=0x0D speed=720ns size=0x00000000
[CFD] ..FUNCID: missing (compat)
(or: [CFD] ..FUNCID: 0x04)
[CFD] ..RESULT: accept
[CFD] ..CONFIG: addr=0x00000200
(or: [CFD] ..CONFIG: default (0x200))
[CFD] RW test
[CFD] ..done, transfer mode: WORD
[CFD] Getting IDE ID
[CFD] ..done
Model: TS4GCF133...............................
Serial: G68120052383AC0700C7
FW: 20110407
Max Multi (W47): 8001
Capabilities (W49): 0200
Multi Setting (W59): 0100
LBA Sectors (W60-61): 00777E70
DMA Modes (W63): 0000
PIO Modes (W64): 0003
UDMA Modes (W88): 0000
[CFD] IDENTIFY (raw):
W0: 848A 1E59 0000 0010 0000 0240 003F 0077
W8: 7E70 0000 4736 3831 3230 3035 3233 3833
W16: 4143 3037 3030 4337 0002 0002 0004 3230
W24: 3131 3034 3037 5453 3447 4346 3133 3320
W32: 2020 2020 2020 2020 2020 2020 2020 2020
W40: 2020 2020 2020 2020 2020 2020 2020 8001
...
W248: 0000 0000 0000 0000 0000 0000 0000 0000
[CFD] Init multi mode
[CFD] ..max multi: 1
[CFD] ..set multi: 1, OK
[CFD] ..override test: OK
[CFD] ..done, multi RW: 256
[CFD] Card identified OK
[CFD] Notify clients
[CFD] Card removed
ENFORCE MULTI MODE (FLAG 16)
============================
Forces 256 sector reads/writes per IO regardless of card firmware
support to improve IO performance. Same behaviour as v1.33 and
earlier versions.
WARNING: Verify your card is capable before using for real data!
Set the flag and read any text file from CF card. The content should
not contain repeating 32-byte pattern after first 512 bytes.
See images/multimode-issue.jpg for example of broken output.
NOTE: Since v1.37, the driver auto-detects multi-sector override
capability and enables 256 sector mode when safe. This flag is now
only needed as a manual override if auto-detection fails.
Can be combined with MaxTransfer to limit sectors per IO:
Flags = 16
MaxTransfer = 0x10000 /* 128 sectors per IO (64 KB) */
Tested configurations (author's experience - your results may vary):
SD-to-CF adapter (SanDisk) 32GB - Works
SD-to-CF adapter (Samsung) 32GB, 64GB - Works
CF cards <=4GB - Works
CF cards >4GB - Not working
CFINFO UTILITY
==============
CFInfo displays detailed information about the inserted CF card.
Requires compactflash.device v1.36+ for IDENTIFY data, v1.37+ for driver config.
CFInfo ; Show info for compactflash.device unit 0
CFInfo 1 ; Show info for unit 1
Example output:
CFInfo 1.40 - CompactFlash Card Information
Device: compactflash.device unit 0
=== CompactFlash Card Information ===
Model: TS16GCF133
Serial: G64126022013C4120210
Firmware: 20180926
=== Capacity ===
Size: 15.2 GB (31522736 sectors)
Geometry: 30401 cyl, 16 heads, 63 sectors/track
=== Capabilities ===
LBA: Yes
DMA: No
PIO Modes: 0, 1, 2, 3, 4
Multi-sect: Max 1 sectors/interrupt
=== Card Type ===
Removable: Yes
Type: CompactFlash
=== Driver Configuration ===
Driver Ver: 1.37
Mount Flags: 0 (none)
Multi-sect: FW=1, Used=256
R/W Mode: WORD/WORD
R/W Mode indicates how the driver accesses the PCMCIA:
WORD 16-bit word access (standard)
BYTE (...) 8-bit byte access variants (fallback)
MMAP Memory mapped word access
SOURCE CODE
===========
Source code available at: https://github.com/pulchart/cfd
Licensed under GNU LGPL v2.1
SUPPORT
=======
The improvements to this driver are developed in my free time.
If you'd like to support ongoing maintenance and experimentation,
you can do so on Ko-fi: https://ko-fi.com/jaroslavpulchart
HISTORY
=======
see https://github.com/pulchart/cfd/blob/master/README.md for complete history
CHECKSUMS
=========
compactflash.device (full, 11308 bytes):
MD5: e4bc57c7e0f945e594f0cc13e8ea2c3d
SHA256: 1ae4afdd0234eb63a24ac04cfd953818c4457487d73d248fce392de9d2a832a5
compactflash.device.small (no debug, 8628 bytes):
MD5: b4ab2a6cf64f55e81c9c21d53b12c2d1
SHA256: 75fcae15c1a69d28f3141baf65ffc9533492617f66a38385622a146cd15430a7
CFInfo (15564 bytes):
MD5: 40f7c1221f3a3a2466e31818d3f9f9ea
SHA256: 036f51b0b4310ba43a60db62decb035afabd917aed954500677bb0f45ec5ac49
pcmciacheck (14144 bytes):
MD5: 27ea335a8606c8d49c5301423f60329b
SHA256: f583ed64aa20c439ea45460bef2baaf10357ae56b6aa1abaeb191b49b33b9c8a
pcmciaspeed (9264 bytes):
MD5: 47212b103dd94ffa3116ef07b3a4cdef
SHA256: 32ea11e0f4d1587fbc85587a39bee21c66abc62a33e301651eed585535c88610
CONTENTS
========
cfd/c/CFInfo - Card information utility (displays model, size, capabilities)
cfd/c/pcmciacheck - PCMCIA check utility
cfd/c/pcmciaspeed - Speed test utility
cfd/devs/CF0 - Mountlist entry (with flags documentation)
cfd/devs/compactflash.device - Driver with debug to serial console flag support
cfd/devs/compactflash.device.small - Driver without debug to serial console support
cfd/docs/cfd.guide - Main documentation (AmigaGuide)
cfd/docs/CFInfo.guide - CFInfo utility documentation (AmigaGuide)
cfd/docs/pcmciacheck.guide - pcmciacheck utility documentation (AmigaGuide)
cfd/docs/pcmciaspeed.guide - pcmciaspeed utility documentation (AmigaGuide)
cfd/src/ - Full source code (assembler + C)
cfd/images/cf-type-1.jpg - CF Type 1 adapter photo
cfd/images/cf-type-2.jpg - CF Type 2 adapter photo (also MicroDrive)
cfd/images/sd-cf-adapter.jpg - SD-to-CF adapter photo
cfd/images/multimode-issue.jpg - Example of broken output with unsupported enforce multi mode
cfd/LICENSE - GNU LGPL v2.1
"CompactFlash" is (TM) by CompactFlash Association
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