{"id":63,"date":"2009-03-03T17:02:12","date_gmt":"2009-03-03T06:02:12","guid":{"rendered":"http:\/\/blog.peter-johnson.com.au\/?p=63"},"modified":"2009-03-03T17:02:12","modified_gmt":"2009-03-03T06:02:12","slug":"tomtom-one-v3-console-access","status":"publish","type":"post","link":"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/03\/tomtom-one-v3-console-access\/","title":{"rendered":"TomTom One V3 console access"},"content":{"rendered":"

By default the TomTom One doesn’t give console access over ttySAC0, instead it looks like a plug & play daemon periodically polls the port possibly for a GPRS modem. A few attempts at allowing access to the shell with TomTom Navigator running concurrently failed so rather than modifying the ttpnpd file that I use to launch my main application I created a file called SerialTTY.cap in the SDKRegistry directory:<\/p>\n

\n\nVersion|100|\nAppName|SerialTTY|\nAppPath|\/mnt\/sdcard\/bin\/|\nAppIconFile|tty.bmp|\nAppMainTitle|Serial TTY|\nAppPort|2001|\nCOMMAND|CMD|cmd|tty.bmp|SerialTTY|\n\n<\/pre>\n
And in the bin directory created a small shell script called SerialTTY to perform the redirection between the shell and the \/dev\/ttySAC0 port:<\/p>\n
#!\/bin\/sh
\ncd \/mnt\/sdcard
\nstty -F \/dev\/ttySAC0 115200
\nsh < \/dev\/ttySAC0 > \/dev\/ttySAC0 2>&1<\/p>\n
All works well and after the initial period I didn’t see any more interference from the plug & play daemon. I noticed in the \/bin directory (on the internal filesystem) that the lrz binary is provided and successfully used it to perform a zmodem file transfer. In conjunction with a few scripts this may be a more convenient way to transfer new binary images to the device rather than going through the reboot required when using the USB mass storage interface.<\/p>\n","protected":false},"excerpt":{"rendered":"
By default the TomTom One doesn’t give console access over ttySAC0, instead it looks like a plug & play daemon periodically polls the port possibly for a GPRS modem. A few attempts at allowing access to the shell with TomTom Navigator running concurrently failed so rather than modifying the ttpnpd file that I use to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,5],"tags":[],"class_list":["post-63","post","type-post","status-publish","format-standard","hentry","category-gps","category-linux"],"yoast_head":"\r\nTomTom One V3 console access - Peter Johnson's Blog<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/blog.peter-johnson.com.au\/index.php\/2009\/03\/03\/tomtom-one-v3-console-access\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"TomTom One V3 console access - Peter Johnson's Blog\" \/>\r\n<meta property=\"og:description\" content=\"By default the TomTom One doesn’t give console access over ttySAC0, instead it looks like a plug & play daemon periodically polls the port possibly for a GPRS modem. 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