Method for transmitting message of high speed single board, field programmable gate array and high speed single board

The invention discloses a method for transmitting message by a high speed veneer, an FPGA on the high speed veneer and the high speed veneer. A DMA controller is added in the FPGA of the high speed veneer. The DMA controller maintains the BD needed by the DMA. The FPGA switches the message with other veneers by the BD. The invention releases the DMA management work of a CPU of the high speed veneer, reduces the working load of the CPU and improves the overall efficiency of the high speed veneer.