diff options
| author | Keith Packard <keithp@keithp.com> | 2013-11-18 12:38:52 -0800 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-11-18 12:38:52 -0800 |
| commit | 0a3e27e3a392be4cfe03d200068a7e69bb2f3fdb (patch) | |
| tree | fbb5dc6105a8e2af1d5c86dfee7b713b588daf38 /doc | |
| parent | d212d782bff977d609a9da1b805de4a2615fb474 (diff) | |
Make companion.xsl validate
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/companion.xsl | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/companion.xsl b/doc/companion.xsl index 1215d9af..14e2194e 100644 --- a/doc/companion.xsl +++ b/doc/companion.xsl @@ -1,5 +1,5 @@ <?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" +<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "/usr/share/xml/docbook/schema/dtd/4.5/docbookx.dtd"> <article> @@ -44,18 +44,22 @@ The Companion Port provides two different functions: <itemizedlist> <listitem> + <para> Power. Both battery-level and 3.3V regulated power are available. Note that the amount of regulated power is not huge; TeleMetrum contains a 150mA regulator and uses, at peak, about 120mA or so. For applications needing more than a few dozen mA, placing a separate regulator on them and using the battery for power is probably a good idea. + </para> </listitem> <listitem> + <para> SPI. The flight computer operates as a SPI master, using a protocol defined in this document. Companion boards provide a matching SPI slave implementation which supplies telemetry information for the radio downlink during flight + </para> </listitem> </itemizedlist> </para> @@ -85,9 +89,11 @@ </section> <section> <title>SPI Message Formats</title> + <para> This section first defines the command message format sent from the flight computer to the companion board, and then the various reply message formats for each type of command message. + </para> <section> <title>Command Message</title> <table frame='all'> |