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USB PARALLEL ADAPTER DOESNT WORK SERIAL
The XS1541 connect to a serial port or USB to the PC, and supports both the IEEE-488 and the serial bus of the C64 on the Commodore side. The adapter works with a few of the Fast_loader protocols of OpenCBM. The XU1541-adapter uses USB to connect to PC, realized withĪn Atmel- microcontroller. It uses cost-efficient and widely avaiabled FETs (BS170) in place of the difficult to get bipolar transistors of the XA1541. The XA1541F is a variant of the XA1541 but otherwise compatible. The XA1541 uses transistors instead of diodes as in the XM1541, and should work with all parallel ports. Not as widely compatible as a XA1541, but still recommended. No more than one device should be connected when using this cable, adding additional devices will lead to problems with high probability. The XM1541 is similar to the XE1541 in principle, but allows using interrupts on the PC instead of polling.
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In contrast to the X1541, the XE1541 is also compatible to most of the newer parallel ports. The parallel port should, BIOS permitting, be switched to SPP or PS/2. It's quite old and only works with fairly old PCs (about up to when the Pentium CPU was standard). It needs to be connected to the parallel port of a PC. Even PCI cards with USB ports rarely work, at least under Windows (details here and here ). a USB-LPT-adapter instead is not possible. These adapters, which need to be connected to the parallel (printer, LPT) port of the PC, need a genuine parallel port as seen on older PCs. The X-type cables are alternatives to modern replacements for disk drives like the 1541 Ultimate or the SD2IEC, which are much more comfortable for day-to-day work on the C64, but also more expensive and more elaborate in construction compared to the more simple cable adapaters. But because of the timing difficulties (the PC must react within microseconds), this is somewhat delicate and not always possible using modern non-realtime multitasking operating systems.
USB PARALLEL ADAPTER DOESNT WORK SOFTWARE
With some of the cables and appropriate software like the 64HDD and 1541EMU, the PC can also emulate a floppy drive for the C64. The cable also allows it to access printers and other serial devices.
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Typically, a PC connects to a floppy drive like the 1541 via an X-type cable in order to copy data to and from disks.