PC-Link

PC-Link is a part of the IDE64-DOS which enables user to access PC storage peripherals directly from C64 the standard way using BASIC commands (LOAD, SAVE, OPEN) or using KERNAL table calls. PC-Link works also in Manager.
You only need to solder the cable and execute small server program on the PC.

The software support for the PC-Link is implemented in the ROM of the IDE64 controller. While upgrading IDE64 firmware you have to select IDE64 firmware with Serial PC-Link or Parallel PC-Link.

Serial PC-Link
Parallel PC-Link
PC-Link communication protocol [PDF]

Serial PC-Link

Pin
DUART_PORT-C64
9 Pin
25 Pin
COM_PORT-PC
2
RxD
3
2
TxD
3
TxD
2
3
RxD
7
RTS
8
5
CTS
8
CTS
7
4
RTS
5
GND
5
7
GND
This is a description of the serial C64/PC cable
To use serial RS-232 link you need DUART serial card and serial (null modem with handshaking) cable and execute small server program on the PC.

Parallel PC-Link

Cable layout is valid for PC-Link V4.1 and higher
Based on PC64 cable layout. You can obtain "PC64" cable from The X1541 Shop
Pin
USER_PORT-C64
Pin
LPT_PORT-PC
A,1
GND
18..25
GND
C
PB0 out
15
ERROR
D
PB1 out
13
SELECT
E
PB2 out
12
PAPER
F
PB3 out
10
ACK IN
H
PB4 in
2
D0
J
PB5 in
3
D1
K
PB6 in
4
D2
L
PB7 in
5
D3
M
PA2 out
11
BUSY
N,12
GND
18..25
GND
B
FLAG in [optional]
9
D7 [optional]
This is a description of the parallel C64/PC cable
You only need to solder this cable and execute small server program on the PC.
Warning: Incorrectly created cable can damage your PC and/or C64 computer. Never plug the cable while the computers are turned on. Use at your own risk.

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