Dear all,

in 13 Feb 2020 to 21 Feb 2020 we had a talk about how I try to create MIDAS events directly on a FPGA and 
than use DMA to hand the event over to MIDAS. In the thread I also explained how I do it in my MIDAS frontend. 

For testing the DAQ I created a dummy frontend which was emulating my FPGA (see attached file). The interesting code is 
in the function read_stream_thread and there I just fill a array according to the 32b BANKS which are 64b aligned (more or less
the lines 306-369). And than I do:

    uint32_t * dma_buf_volatile;
    dma_buf_volatile = dma_buf_dummy;

    copy_n(&dma_buf_volatile[0], sizeof(dma_buf_dummy)/4, pdata);

    pdata+=sizeof(dma_buf_dummy);
    rb_increment_wp(rbh, sizeof(dma_buf_dummy)); // in byte length

to send the data to the buffer.

This summer (Mai - July) everything was working fine but today I did not get the data into MIDAS. 
I was hopping around a bit with the commits and everything was at least working until: 3921016ce6d3444e6c647cbc7840e73816564c78.

Thanks,
Marius