import ChibiOS 2.0.8

2010-11-30 13:54:43 +09:00
parent 27543cfeca
commit c560d0ad0c
1982 changed files with 5318 additions and 4046 deletions
--- a/ChibiOS_2.0.8/os/hal/platforms/LPC214x/hal_lld.c
+++ b/ChibiOS_2.0.8/os/hal/platforms/LPC214x/hal_lld.c
@@ -0,0 +1,134 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 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/>.
+
+                                      ---
+
+    A special exception to the GPL can be applied should you wish to distribute
+    a combined work that includes ChibiOS/RT, without being obliged to provide
+    the source code for any proprietary components. See the file exception.txt
+    for full details of how and when the exception can be applied.
+*/
+
+/**
+ * @file LPC214x/hal_lld.c
+ * @brief LPC214x HAL subsystem low level driver source.
+ * @addtogroup LPC214x_HAL
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables.                                                   */
+/*===========================================================================*/
+
+/**
+ * @brief PAL setup.
+ * @details Digital I/O ports static configuration as defined in @p board.h.
+ */
+const PALConfig pal_default_config =
+{
+  VAL_PINSEL0,
+  VAL_PINSEL1,
+  VAL_PINSEL2,
+  {VAL_FIO0PIN, VAL_FIO0DIR},
+  {VAL_FIO1PIN, VAL_FIO1DIR}
+};
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*
+ * Non-vectored IRQs handler, the default action can be overridden by
+ * redefining the @p LPC214x_NON_VECTORED_IRQ_HOOK() hook macro.
+ */
+static CH_IRQ_HANDLER(irq_handler) {
+
+  CH_IRQ_PROLOGUE();
+
+  LPC214x_NON_VECTORED_IRQ_HOOK();
+
+  VICVectAddr = 0;
+  CH_IRQ_EPILOGUE();
+}
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief Low level HAL driver initialization.
+ */
+void hal_lld_init(void) {
+
+  vic_init();
+  VICDefVectAddr = (IOREG32)irq_handler;
+
+}
+
+/**
+ * @brief LPC214x clocks and PLL initialization.
+ * @note All the involved constants come from the file @p board.h.
+ */
+void lpc214x_clock_init(void) {
+
+  /*
+   * All peripherals clock disabled by default in order to save power.
+   */
+  PCONP = PCRTC | PCTIM0;
+
+  /*
+   * MAM setup.
+   */
+  MAMTIM = 0x3;                 /* 3 cycles for flash accesses. */
+  MAMCR  = 0x2;                 /* MAM fully enabled. */
+
+  /*
+   * PLL setup for Fosc=12MHz and CCLK=48MHz.
+   * P=2 M=3.
+   */
+  PLL *pll = PLL0Base;
+  pll->PLL_CFG  = 0x23;         /* P and M values. */
+  pll->PLL_CON  = 0x1;          /* Enables the PLL 0. */
+  pll->PLL_FEED = 0xAA;
+  pll->PLL_FEED = 0x55;
+  while (!(pll->PLL_STAT & 0x400))
+    ;                           /* Wait for PLL lock. */
+
+  pll->PLL_CON  = 0x3;          /* Connects the PLL. */
+  pll->PLL_FEED = 0xAA;
+  pll->PLL_FEED = 0x55;
+
+  /*
+   * VPB setup.
+   * PCLK = CCLK / 4.
+   */
+  VPBDIV = VPD_D4;
+}
+
+/** @} */