From 58c9c4faae6f351affa1f96f632cbb22d47d5929 Mon Sep 17 00:00:00 2001 From: Robert Lipe Date: Mon, 28 Oct 2019 21:47:34 -0500 Subject: [PATCH] m241: Document serial port hardware Hint that yellow m241 uses SiLabs CP210x. Red m241 is dead to us and the whole company is even more dead. --- xmldoc/formats/m241.xml | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/xmldoc/formats/m241.xml b/xmldoc/formats/m241.xml index 52c34ab63..fa6602256 100644 --- a/xmldoc/formats/m241.xml +++ b/xmldoc/formats/m241.xml @@ -1,15 +1,25 @@ - The Holux m241 is a small datalogger using the MTK chipset, with - a couple small differences in the binary format. In its default + The Holux m241 is a small datalogger using the MTK chipset, with + a couple small differences in the binary format. In its default configuration, it can store ~100000 trackpoints with very limited - data; to configure extended logging you can use the BT747 open - source software + data; to configure extended logging you can use the BT747 open + source software bt747 Waypoint storage is possible only if "recording reason" (RCR) is enabled in the settings. - Holux GPSport 245 is a datalogger with display suitable for cycling, walking and running. - It can store ~200k trackpoints with limited data. The m241 and m241-bin format is + The m-241 came in two models. The yellow one, popular with photographers, + internally used the Silicon Labs CP210X chipset to transform the internal and + inaccessible serial port to the USB port that was familiar on the side. The + drivers for that port can be found with + SiLabs CP210x serial port drivers. The red and white one existed + very briefly before Holux went out of business. GPSBabel does not work with + the red and white one. + + + + Holux GPSport 245 is a datalogger with display suitable for cycling, walking and running. + It can store ~200k trackpoints with limited data. The m241 and m241-bin format is able to automatically detect GPSport 245 data and handle the differences from Holux 241 devices. Note: GP245 does not log any quality of the position. -- 2.30.2