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A software framework for Linux device drivers aimed at supporting controls and data acquisition hardware. ZIO supports sub-nanosecond timestamps, block-oriented input and output and transport of meta-data with the data samples. Users can change the buffer type and trigger type associated with a device at run time, and all of devices, triggers and buffers are easily implemented as add-on modules.

The PF_ZIO implementation, currently in beta status, implements a network interface to the ZIO transport, which allows each I/O channel to generate or receive network frames. Applications see the network of devices and can talk with several of them from the same socket. We support SOCK_STREAM, SOCK_DGRAM and SOCK_RAW.

SDB (Self-describing Bus) allows to enumerate the cores that are live in the current FPGA binary, either from the host computer or from the internal soft-core CPU in the FPGA itself. The project provides the software support and the specification. More info at the Wiki page

On the Open Hardware Repository you can find projects which use soft-cpu (e.g. mock-turtle, white-rabbit-core, wr-switch). This project offers a toolchain that you can use to compile your code for the soft-cpu target (only LM32 for the time being). The project provides only the necessary makefiles to build the toolchain, so it will be necessary to compile the toolchain.