Re: [Discuss-gnuradio] FX2 TX DMA Transfer Question

2007-04-26 Thread Eric Blossom
On Thu, Apr 26, 2007 at 01:56:10PM -0400, Brian Padalino wrote: > When the FX2 detects the have_space pin on the FPGA, does it transfer > 1 entire buffered USB packet to the FPGA, then re-check the have_space > pin? Yes. > Would it be reasonable to assume a 1 clock delay between the last byte > o

[Discuss-gnuradio] FX2 TX DMA Transfer Question

2007-04-26 Thread Brian Padalino
When the FX2 detects the have_space pin on the FPGA, does it transfer 1 entire buffered USB packet to the FPGA, then re-check the have_space pin? Would it be reasonable to assume a 1 clock delay between the last byte of one 512-byte packet being written to the FPGA and the first byte of a second