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Minsoc and Altera Cyclone II

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RE: Minsoc and Altera Cyclone II by parrado on Oct 17, 2010			parrado Posts: 19 Joined: Jul 16, 2008 Last seen: Nov 12, 2020
[q] However, it may be possible to add high-speed support to the FT245 driver. The FT245 driver was donated to my project (I didn't write it), but I seem to remember looking through it thinking it would be straightforward to adapt the high-speed routines from my USB-Blaster driver to work with libftdi. I simply haven't taken the time to try it yet (and I couldn't properly test it even if I did). You could try it yourself, if you were so inclined...if it works, I'd be happy to add it to the adv_debug_sys project. [/q] Doe's ftdio_sio kernel module (http://www.ftdichip.com/Drivers/VCP/Linux/ftdi_sio.tar.gz) can be used to improve speed? However, it may be possible to add high-speed support to the FT245 driver. The FT245 driver was donated to my project (I didn't write it), but I seem to remember looking through it thinking it would be straightforward to adapt the high-speed routines from my USB-Blaster driver to work with libftdi. I simply haven't taken the time to try it yet (and I couldn't properly test it even if I did). You could try it yourself, if you were so inclined...if it works, I'd be happy to add it to the adv_debug_sys project. Doe's ftdio_sio kernel module (http://www.ftdichip.com/Drivers/VCP/Linux/ftdi_sio.tar.gz) can be used to improve speed?

RE: Minsoc and Altera Cyclone II by nyawn on Oct 20, 2010			nyawn Posts: 173 Joined: Dec 19, 2008 Last seen: May 31, 2023
[q] Doe's ftdio_sio kernel module (http://www.ftdichip.com/Drivers/VCP/Linux/ftdi_sio.tar.gz) can be used to improve speed? [/q] I don't know, this is the first I've heard of this driver. Really, the problem is that the alternate USB-Blaster driver only supports bit-bang mode, so it does ~5 USB transactions just to send 1 bit. In the last week, I have developed an experimental version of the alternate driver that supports high-speed transfers. It works for my cable, but the regular driver works for my cable, so that's not much of a test. If you'd like to try the experimental driver, send an e-mail to my opencores.org address, and I'll send you the updated code. This would actually be really useful for me, to have the new driver tested on a cable that doesn't work with the regular driver... Doe's ftdio_sio kernel module (http://www.ftdichip.com/Drivers/VCP/Linux/ftdi_sio.tar.gz) can be used to improve speed? I don't know, this is the first I've heard of this driver. Really, the problem is that the alternate USB-Blaster driver only supports bit-bang mode, so it does ~5 USB transactions just to send 1 bit. In the last week, I have developed an experimental version of the alternate driver that supports high-speed transfers. It works for my cable, but the regular driver works for my cable, so that's not much of a test. If you'd like to try the experimental driver, send an e-mail to my opencores.org address, and I'll send you the updated code. This would actually be really useful for me, to have the new driver tested on a cable that doesn't work with the regular driver...

RE: Minsoc and Altera Cyclone II by parrado on Oct 20, 2010			parrado Posts: 19 Joined: Jul 16, 2008 Last seen: Nov 12, 2020
Hi Nathan, Your e-mail address is rejecting my mail. It's against forum rules publish my mail address for you? Hi Nathan, Your e-mail address is rejecting my mail. It's against forum rules publish my mail address for you?

RE: Minsoc and Altera Cyclone II by parrado on Oct 20, 2010			parrado Posts: 19 Joined: Jul 16, 2008 Last seen: Nov 12, 2020
[q]Hi Nathan, Your e-mail address is rejecting my mail. It's against forum rules publish my mail address for you?[/q] Please ignore previous post. I sent e-mail Hi Nathan, Your e-mail address is rejecting my mail. It's against forum rules publish my mail address for you? Please ignore previous post. I sent e-mail

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