Subversion Repositories usb_fpga_2_14

mmio

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This example runs only un USB-FPGA Modules 2.16. It demonstrates

memory mapped I/O between the EZ-USB FX2 and the FPGA.

The firmware (defined in mmio-*.c) declares Endpoint 2 and Endpoint 4

(both 512 bytes, double buffered, bulk transfer, belong to interface 0).

All data that is written to Endpoint 4 is converted to uppercase by

the FPGA and can be read back from Endpoint 2.

The uppercase - lowercase conversion is made by the FPGA through memory

mapped I/O: The EZ-USB FX2 writes the data to address 0x5001 and reads

the converted data back from 0x5002.

The driver (defined in MMIO.java) uploads the the Firmware to the EZ-USB

Microcontroller and the Bitstream to the FPGA, sends user string to the

device and reads them back.