doc: add documentation on how to re-flash a TeleMini v3 over USB

diff --git a/doc/updating-firmware.inc b/doc/updating-firmware.inc
index b9216a2235288d58a8c50705d18b40a6b9b2101c..e2e1388a74c4bcda591cb6985c75e1ae5d0aa4b9 100644 (file)
--- a/doc/updating-firmware.inc
+++ b/doc/updating-firmware.inc
@@ -17,6 +17,15 @@
        you have before trying to reprogram them.
        endif::telemega[]
 
        you have before trying to reprogram them.
        endif::telemega[]
 

+       TeleMini v3 can be updated directly over USB, but has no USB connector
+       on the board.  Instead, the USB signals are present on a row of 6
+       holes adjacent to the copyright assertion in the silk screen.  Thus, 
+       updating firmware on TeleMini v3 requires making up a special cable, 
+       after which you can treat it just like TeleMetrum or TeleMega.  Many
+       USB cables seem to follow the color code of red is +5V, black is GND,
+       green is USB +, and white is USB -.  On TeleMini v3, pin 3 which has 
+       a square copper pad is ground, pin 1 is USB -, and pin 2 is USB +.  
+

        You may wish to begin by ensuring you have current firmware
        images.  These are distributed as part of the AltOS software
        bundle that also includes the AltosUI ground station program.
        You may wish to begin by ensuring you have current firmware
        images.  These are distributed as part of the AltOS software
        bundle that also includes the AltosUI ground station program.


@@ -28,7 +37,7 @@
 
        ifdef::telemega[]
 
 
        ifdef::telemega[]
 

-       === Updating TeleMega, TeleMetrum v2 or newer, EasyMega, EasyMini, TeleDongle v3 or TeleBT v3 Firmware
+       === Updating TeleMega, TeleMetrum v2 or newer, TeleMini v3, EasyMega, EasyMini, TeleDongle v3 or TeleBT v3 Firmware

 
        endif::telemega[]
        ifndef::telemega[]
 
        endif::telemega[]
        ifndef::telemega[]


@@ -44,7 +53,8 @@
                  the target device. Power up the device.
 
                . Using a Micro USB cable, connect the target device to your
                  the target device. Power up the device.
 
                . Using a Micro USB cable, connect the target device to your

-                 computer's USB socket.
+                 computer's USB socket.  If the target is a TeleMini v3,
+                 make up and attach a special USB cable.

 
                . Run AltosUI, and select 'Flash Image' from the File menu.
 
 
                . Run AltosUI, and select 'Flash Image' from the File menu.