Honored Contributor
Honored ContributorI was going to say more, then the forum access hung :
--- Quote Start --- I've seen cases where I cannot open a COM port while I have SystemConsole with a JTAG connection open. I suspect an issue with the drivers not playing nicely (since the USB-Blaster also uses FTDI drivers). --- Quote End --- Ah, I am using the FTDI D2XX direct drivers, not the com port drivers. I can talk to the .dll that uses these direct from the Apl array manipulation program that I work in. Actually the these drivers now also handle the com interfaces as well - it is certainly worth upgrading to the latest drivers. I was installing a FTDI interfaced USB relay board yesterday, for high-pressure gas flow control, and noticed that having installed as com8:, when I moved it to other usb ports it remained as com8: - a considerable improvement over what used to happen with usb com ports on a PC. --- Quote Start --- On the Morph-IC, the reset signal for the FPGA was one of the FTDI outputs configured as a GPIO. You can use the ftd2xx DLL to setup the GPIOs, and then deassert the reset signal. --- Quote End --- Thanks, I think I had a quick try at something like this, but was not clear about the meaning of some of the GPIO instructions - I will have another try sometime. I have been thinking in the meanwhile - you have really helped me with these discussions - now I have invested some months of work and also serious money in hiring a vhdl engineer to work on the state machine for this code, so I can not make this a habit, but would you like a (personal) copy of my interface firmware for the MorphicII or the FT2232H mini modules ? I will have to do some documentation.
