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author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-08-30 07:27:17 +0000 |
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committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-08-30 07:27:17 +0000 |
commit | 576d80eb6337c518374ed4ff4c54ff544708a98a (patch) | |
tree | e5ec5dc6a8a732c655b24d8d38e904f120a3de0e /os/ports/GCC/MSP430 | |
parent | c7b1157dc9f3ae577d592ab3207a84e64140eabe (diff) | |
download | ChibiOS-576d80eb6337c518374ed4ff4c54ff544708a98a.tar.gz ChibiOS-576d80eb6337c518374ed4ff4c54ff544708a98a.tar.bz2 ChibiOS-576d80eb6337c518374ed4ff4c54ff544708a98a.zip |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1135 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/ports/GCC/MSP430')
-rw-r--r-- | os/ports/GCC/MSP430/port.dox | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/os/ports/GCC/MSP430/port.dox b/os/ports/GCC/MSP430/port.dox new file mode 100644 index 000000000..5ae73c0b0 --- /dev/null +++ b/os/ports/GCC/MSP430/port.dox @@ -0,0 +1,85 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @defgroup MSP430 MSP430
+ * @details MSP430 port details. This section how the ChibiOS/RT features are
+ * implemented on this architecture.
+ *
+ * @section MSP430_STATES Mapping of the System States in the MSP430 port
+ * The ChibiOS/RT logical @ref system_states are mapped as follow in the MSP430
+ * port:
+ * - <b>Init</b>. This state is represented by the startup code and the
+ * initialization code before @p chSysInit() is executed. It has not a
+ * special hardware state associated.
+ * - <b>Normal</b>. This is the state the system has after executing
+ * @p chSysInit(). Interrupts are enabled.
+ * - <b>Suspended</b>. Interrupts are disabled.
+ * - <b>Disabled</b>. Interrupts are enabled. This state is equivalent to the
+ * Suspended state because there are no fast interrupts in this architecture.
+ * - <b>Sleep</b>. Not yet implemented.
+ * - <b>S-Locked</b>. Interrupts are disabled.
+ * - <b>I-Locked</b>. This state is equivalent to the SRI state, the
+ * @p chSysLockI() and @p chSysUnlockI() APIs do nothing (still use them in
+ * order to formally change state because this may change).
+ * - <b>Serving Regular Interrupt</b>. Normal interrupt service code.
+ * - <b>Serving Fast Interrupt</b>. Not present in this architecture.
+ * - <b>Serving Non-Maskable Interrupt</b>. The MSP430 has several non
+ * maskable interrupt sources that can be associated to this state.
+ * - <b>Halted</b>. Implemented as an infinite loop with interrupts disabled.
+ * .
+ * @section MSP430_NOTES The MSP430 port notes
+ * - The MSP430 does not have a dedicated interrupt stack, make sure to reserve
+ * enough stack space for interrupts in each thread stack. This can be done
+ * by modifying the @p INT_REQUIRED_STACK macro into
+ * <b>./ports/MSP430/chcore.h</b>.
+ * - The state of the hardware multiplier is not saved in the thread context,
+ * make sure to use it in <b>Suspended</b> state (interrupts masked).
+ * - The port code does not define the switch to a low power mode for the
+ * idle thread because the MSP430 has several low power modes. You can
+ * select the proper low power mode for you application by defining the
+ * macro @p port_wait_for_interrupt().
+ * .
+ * @ingroup ports
+ */
+
+/**
+ * @defgroup MSP430_CONF Configuration Options
+ * @brief MSP430 Configuration Options.
+ * @details The MSP430 port allows some architecture-specific configurations
+ * settings that can be specified externally, as example on the compiler
+ * command line:
+ * - @p INT_REQUIRED_STACK, this value represent the amount of stack space
+ * used by the interrupt handlers.<br>
+ * The default for this value is @p 32, this space is allocated for each
+ * thread so be careful in order to not waste precious RAM space.<br>
+ * The default value is set into <b>./ports/MSP430/chcore.h</b>.
+ * .
+ * @ingroup MSP430
+ */
+
+/**
+ * @defgroup MSP430_CORE Core Port Implementation
+ * @brief MSP430 specific port code, structures and macros.
+ *
+ * @ingroup MSP430
+ * @file MSP430/chtypes.h Port types.
+ * @file MSP430/chcore.h Port related structures and macros.
+ * @file MSP430/chcore.c Port related code.
+ */
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