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Forum Index : Microcontroller and PC projects : CMM to Raspberry Pi via USB
| Author | Message | ||||
| vk2sja Newbie  Joined: 07/06/2013 Location: AustraliaPosts: 26 |
Hi All, I'm trying to connect my Colour Maximite to a Raspberry Pi via USB. The connection fails. Syslog shows:- device descriptor read/64, error -32 The CMM is self powered and has just been flashed to MMBasic 4.5 The Pi is a model B (not the just released B+) but has been rpi-updated, apt-get update, apt-get install. The OS is a very recent version of Raspbian in any case. Tried knocking things back down to USB 1.0 speeds with dwc_otg.speed=1, in /boot/cmdline.txt, still no good. The Raspberry Pi of course has had a long history with USB problems because the Pi is actually using a USB On The Go chip which normally would see use in a mobile device not a host computer. Tends to trigger all sorts of unexpected bugs. Anyway, just wondering if anyone has "been there, done that" and had more success than me? Steve. |
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TassyJim Guru  Joined: 07/08/2011 Location: AustraliaPosts: 6266 |
I had no problems with a B+ You could use a USB-TTL converter and COM1 on the CMM Jim VK7JH MMedit |
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