USB HOST for GPS
Michael Vowles wrote 11/03/2015 at 22:30 • 3 pointsLooking for some pointers as I have been trying to get a BU-353 GPS working with an LPC1768 MCU (speecfically the mbed dev board) using this library https://developer.mbed.org/users/va009039/code/GPSUSBHost/. I can get it communicating but the character read out is just pound symbols. I dont have any experience in USB driver development so its been a bit hard to debug. Anyone have any pointers on where to look? Should I just cut my losses and get a single board computer (rpi/BBB?) to save implementing my own USB stack?
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You have a pretty good resource to start with in http://www.usglobalsat.com/store/download/688/linux_usb_driver.zip. My wild guess is since that gps has a power saving mode you need to tell it to start. It's also possible you simply have incorrect tty settings and your return is getting garbled by missing bits.
I would start with pulling apart the init portion of the linux driver and send those down the line using your usbhost implementation. Good luck.
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I completely missed this, thanks Darren. I'll look into it.
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