From: Paul L. <pl...@at...> - 2007-07-18 16:12:57
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The GPS interface is a rather inefficient continuous stream of cmd52's=20 over the bus. On slow machine it may not keep up. You could turn on some=20 of the debug messages in the GPS driver and see what is coming in off=20 the device. Paul L ________________________________ From: boku [mailto:bok...@gm...]=20 Sent: Wednesday, July 18, 2007 4:43 AM To: sdi...@li... Subject: [Sdio-linux-devel] Using cat pharos GPS data Hi, I use cat /dev/ttyxx to check if there's data from pharos GPS. It=20 did output some text data such $GP.... 0,50.0,50.0*05=20 But why the "cat" doesn't quit? It just hanged there unless I type=20 "Ctrl+C" to quit.=20 Is it correct?=20 =20 <ps> I checked some message and found while upper application uses=20 gps_start_tx() and it did use CMD 52 to write pharos UART IER register.=20 After that, it is hanged.=20 =20 BR,=20 Victor |