compactflash.device V1.36 - PCMCIA CompactFlash driver for Amiga 600/1200. Fork of driver/media/CFD133.lha.
CHANGES IN 1.36 (08.01.2026)
============================
Driver:
* MuForce hit fix when using Format (issue #8)
- Fixed memory access issue detected by MuForce during disk formatting
* Clear stale card data on removal
- Prevents stale data when no card is present or after card swap
- IDE status, error, addresses, multi-sector settings now cleared on card removal
- 512-byte IDENTIFY buffer fully cleared (model, serial, firmware, capacity)
* SD-to-CF adapter retry fix (introduced in v1.33)
- When ATA IDENTIFY retries exhaust, now tries ATAPI IDENTIFY PACKET DEVICE
- Fixes potential hang on SD-to-CF adapters
* Implement ATA_IDENTIFY command
- retrieve the cached ATA IDENTIFY data from the driver
Tools:
* CFInfo utility
- Displays card model, serial, firmware, capacity, and capabilities
* pcmciaspeed utility
- Recreated PCMCIA memory access timing benchmark tool
* pcmciacheck utility
- Recreated PCMCIA check tool
Others:
* AmigaGuide documentation included (.guide files)
* Improved code documentation
- Architecture overview with register conventions
- Documented CFU structure fields and key functions
* Gayle memory timing
- Experimental: disabled, user can compile driver with option FASTPIO=1
- Maps card's ATA PIO mode to Gayle PCMCIA memory timing
FEATURES
========
* Supports CompactFlash, MicroDrive, and various adapters (SD, MemoryStick, SmartMedia)
* TD64 and SCSI emulation support
* Works with fat95 filesystem for FAT32 support
* 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-pcmcia-adapter.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 10536 bytes Driver with debug to serial console flag support
compactflash.device.small 8412 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 /* skip invalid PCMCIA signature for non-standard cards */
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+) */
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] Reading tuples
[CFD] Tuple CISTPL_CONFIG found
[CFD] RW test
[CFD] ..done
[CFD] Transfer: WORD
[CFD] Getting IDE ID
[CFD] ..done
[CFD] Model: TS4GCF133...............................
[CFD] Serial: G68120052383AC0700C7
[CFD] FW: 20110407
[CFD] IDENTIFY:
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] ..card supports max multi: 1
[CFD] ..setting multi mode to: 1
[CFD] ..OK
[CFD] ..override multi size: 256
[CFD] ..done
[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.
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 full IDENTIFY data.
CFInfo ; Show info for compactflash.device unit 0
CFInfo 1 ; Show info for unit 1
Example output:
CFInfo 1.36 - 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
SOURCE CODE
===========
Source code available at:
https://github.com/pulchart/cfd
Licensed under GNU LGPL v2.1
HISTORY
=======
see https://github.com/pulchart/cfd/blob/master/README.md for complete history
CHECKSUMS
=========
compactflash.device (full, 10536 bytes):
MD5: c173c3150cee5c1fe9fc43f095334d1c
SHA256: 81a3eab50cba045ee5878114648d7c6e6223b39094cebe6b024af56c71f3b169
compactflash.device.small (no debug, 8412 bytes):
MD5: 11b8e2ba9a33af0aabf0ba8965a50ab8
SHA256: 36126e278ff6026c2348fcb1324fe1b0c4e97857833c4b7b03ddee7a471814b0
CFInfo (14152 bytes):
MD5: b2e199120ce0b2fb26b7e296ec442bc8
SHA256: d693a830f3dca0c95029b665023457e95c8932819b5bbe19c5eed86f21cf64bf
pcmciacheck (13200 bytes):
MD5: d2ca529b87ae5441ef2840be0daa2546
SHA256: 9e57ee0f7042095cb1ab86c8341a1d60d9eedd9077cf6f323eea160d4b13c0f3
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-pcmcia-adapter.jpg - CF-to-PCMCIA adapter photo
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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