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authorMarti Bolivar <mbolivar@leaflabs.com>2011-05-28 00:25:05 -0400
committerMarti Bolivar <mbolivar@leaflabs.com>2011-05-28 00:25:05 -0400
commit184da40c6dc0509d27a423866a48f707fcb1b370 (patch)
treed0c3e24779cb13d4c2b84fce669e793234ce0cf1 /source/arduino-compatibility.rst
parentd104f3b2dad7c315cebb9dc6e8eaeddcb209dafe (diff)
downloadlibrambutan-184da40c6dc0509d27a423866a48f707fcb1b370.tar.gz
librambutan-184da40c6dc0509d27a423866a48f707fcb1b370.zip
Docs: Tweak disabling JTAG debugging information.
Diffstat (limited to 'source/arduino-compatibility.rst')
-rw-r--r--source/arduino-compatibility.rst17
1 files changed, 9 insertions, 8 deletions
diff --git a/source/arduino-compatibility.rst b/source/arduino-compatibility.rst
index e6852a0..c200411 100644
--- a/source/arduino-compatibility.rst
+++ b/source/arduino-compatibility.rst
@@ -26,12 +26,12 @@ EABI target (:command:`arm-non-eabi-gcc`). A (preliminary) reference
on :ref:`using arm-none-eabi-gcc <arm-gcc>` is available.
The bitwidth of the processor means that the Maple can process 32-bit
-operations (like adding two 32-bit integers) in a single instruction,
-while an Arduino processor would have to split up large operations
-into several smaller ones. In a lot of cases 8-bit operations are
-plenty (integers 0-255, single characters of text, etc.), but if
-you're dealing with higher resolution data, the speed up could be
-significant.
+operations (like adding or multiplying two 32-bit integers) in a
+single instruction, while an Arduino processor would have to split up
+large operations into several smaller ones. In a lot of cases 8-bit
+operations are plenty (integers 0-255, single characters of text,
+etc.), but if you're dealing with higher resolution data, the speed up
+could be significant.
A trade-off is that code could be larger as well; program instructions
and memory locations can be up to 32 bits each. However, removal of
@@ -45,8 +45,9 @@ Header Numbering and Incompatibilities
The numbering of headers is different; on the Maple each GPIO has a
unique number: 0, 1, 2, all the way up to 37 (actually, there are
-:ref:`a few more <jtag>`...). On the Arduino, the analog pins are
-numbered separately (A0-A5) from the digital pins (D0\ -D13).
+:ref:`a few more <lang-disabledebugports>`...). On the Arduino, the
+analog pins are numbered separately (A0-A5) from the digital pins (D0\
+-D13).
The incompatible hardware differences are: