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flexloader is a small utility to configure SRAM based ALTERA devices.
It downloads a code to the device SRAM using an ALTERA ByteBlaster
or a compatible JTAG programmer (see flexloader.png for a schematic). It
dialogs with it through the parallel interface, using parport. Note that
you should have access rights to the parallel port.
It should support APEX20K, FLEX10K, FLEX6000 and ACEX1K families,
though I only tested it on a FLEX10K10 device.
It currently only supports files in raw binary format (.rbf), but others
format such as HEX or TTF may be implemented later.
It's use is very simple:
flexloader /dev/parport0 code.rbf (on linux)
flexloader /dev/ppi0 code.rbf (on freebsd)
flexloader currently supports a few options switches, you can get them