Self-programmable devices (TeleMega, TeleMetrum v2 and EasyMini)
are reprogrammed by connecting them to your computer over USB
</para>
- <para>
- The big concept to understand is that you have to use a
- TeleMega, TeleMetrum or TeleDongle as a programmer to update a
- pair programmed device. Due to limited memory resources in the
- cc1111, we don't support programming directly over USB for these
- devices.
- </para>
<section>
<title>
Updating TeleMega, TeleMetrum v2 or EasyMini Firmware
</para>
</listitem>
</orderedlist>
+ <section>
+ <title>Recovering From Self-Flashing Failure</title>
+ <para>
+ If the firmware loading fails, it can leave the device
+ unable to boot. Not to worry, you can force the device to
+ start the boot loader instead, which will let you try to
+ flash the device again.
+ </para>
+ <para>
+ On each device, connecting two pins from one of the exposed
+ connectors will force the boot loader to start, even if the
+ regular operating system has been corrupted in some way.
+ </para>
+ <variablelist>
+ <varlistentry>
+ <term>TeleMega</term>
+ <listitem>
+ <para>
+ Connect pin 6 and pin 1 of the companion connector. Pin 1
+ can be identified by the square pad around it, and then
+ the pins could sequentially across the board. Be very
+ careful to <emphasis>not</emphasis> short pin 8 to
+ anything as that is connected directly to the battery. Pin
+ 7 carries 3.3V and the board will crash if that is
+ connected to pin 1, but shouldn't damage the board.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>TeleMetrum v2</term>
+ <listitem>
+ <para>
+ Connect pin 6 and pin 1 of the companion connector. Pin 1
+ can be identified by the square pad around it, and then
+ the pins could sequentially across the board. Be very
+ careful to <emphasis>not</emphasis> short pin 8 to
+ anything as that is connected directly to the battery. Pin
+ 7 carries 3.3V and the board will crash if that is
+ connected to pin 1, but shouldn't damage the board.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>EasyMini</term>
+ <listitem>
+ <para>
+ Connect pin 6 and pin 1 of the debug connector, which is
+ the six holes next to the beeper. Pin 1 can be identified
+ by the square pad around it, and then the pins could
+ sequentially across the board, making Pin 6 the one on the
+ other end of the row.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </section>
+ </section>
+ <section>
+ <title>Pair Programming</title>
+ <para>
+ The big concept to understand is that you have to use a
+ TeleMega, TeleMetrum or TeleDongle as a programmer to update a
+ pair programmed device. Due to limited memory resources in the
+ cc1111, we don't support programming directly over USB for these
+ devices.
+ </para>
</section>
<section>
<title>Updating TeleMetrum v1.x Firmware</title>