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1mb/s
Ok thanks for that, i thought the pic would be better originally but obviously not!
I have now got a 7414 and 4081 to do the same work as the PIC and it seems to work fine with 1Mbit transfers, obviously i should have spent more time with the basic logic first!
The 1Mbit data looks good...
make a usb interfacing chip
Yes the PIC is the problem.. cant get enough routine done in the cycles available..
The pic controls the loading of each byte from the FT245 into the FIFO, i could do this with an external clock and some gates but it was easier logically to do it with the pic for...
fifo ft245 vb
So today i have finally got the FIFO chip working. I have used a PIC to load the bytes into the FIFO chip and the output is read at a constant speed.
I now have a working setup that gives 1.024Mbit without any errors :-)
Next i will try to go up to 2Mbit throughput but i have one...
lower usb sof interrupts
Ok thanks for that information, i have made a couple of changes to the software but it's just semi educated guesswork here with my knowledge to make things happen and from that i have not noticed any difference with the output stream dropouts.
I have come to the...
ftdi d2xx slow
Thanks for the reply, interesting about the 1ms bit, all other pages i had read before saying this was the limitation, maybe i can make some progress then..!
Well at the moment i'm sending the data to the FIFO from some VB code at full speed, i.e. no FIFO control but i think...
ft245 project
Hi to all, just found this forum and it looks like i might get some answers to my problem :-)
I am trying to make an interface for a Digital television transmitter for Amateur radio..
Original design used the parallel port for 1.024Mb/s 8-bit parallel transfer rate in dos with...
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