aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2007-12-18 11:13:37 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2007-12-18 11:13:37 +0000
commit51d9a97993bca9924419ba9d62b4c79c8426c91b (patch)
treed4ec29906a23a5eb7a9a383ca9ffac9bea351479
parentb1bba5833e6f4476c8fb81b364c3f30996e94cc6 (diff)
downloadChibiOS-51d9a97993bca9924419ba9d62b4c79c8426c91b.tar.gz
ChibiOS-51d9a97993bca9924419ba9d62b4c79c8426c91b.tar.bz2
ChibiOS-51d9a97993bca9924419ba9d62b4c79c8426c91b.zip
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@148 35acf78f-673a-0410-8e92-d51de3d6d3f4
-rw-r--r--demos/ARM7-LPC214x-GCC-minimal/board.c133
-rw-r--r--demos/ARM7-LPC214x-GCC-minimal/board.h64
2 files changed, 197 insertions, 0 deletions
diff --git a/demos/ARM7-LPC214x-GCC-minimal/board.c b/demos/ARM7-LPC214x-GCC-minimal/board.c
new file mode 100644
index 000000000..ef86d8217
--- /dev/null
+++ b/demos/ARM7-LPC214x-GCC-minimal/board.c
@@ -0,0 +1,133 @@
+/*
+ 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/>.
+*/
+
+#include <ch.h>
+
+#include "lpc214x.h"
+#include "vic.h"
+//#include "lpc214x_serial.h"
+//#include "lpc214x_ssp.h"
+
+#include "board.h"
+//#include "mmcsd.h"
+//#include "buzzer.h"
+
+/*
+ * Non-vectored IRQs handling here.
+ */
+__attribute__((naked))
+static void IrqHandler(void) {
+
+ chSysIRQEnterI();
+
+ /* nothing */
+
+ chSysIRQExitI();
+}
+
+/*
+ * Timer 0 IRQ handling here.
+ */
+__attribute__((naked))
+static void T0IrqHandler(void) {
+
+ chSysIRQEnterI();
+
+ T0IR = 1; /* Clear interrupt on match MR0. */
+ chSysTimerHandlerI();
+
+ chSysIRQExitI();
+}
+
+/*
+ * Hardware initialization goes here.
+ * NOTE: Interrupts are still disabled.
+ */
+void hwinit(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 = PLLBase;
+ pll->PLL0_CFG = 0x23; /* P and M values. */
+ pll->PLL0_CON = 0x1; /* Enalbles the PLL 0. */
+ pll->PLL0_FEED = 0xAA;
+ pll->PLL0_FEED = 0x55;
+ while (!(pll->PLL0_STAT & 0x400))
+ ; /* Wait for PLL lock. */
+
+ pll->PLL0_CON = 0x3; /* Connects the PLL. */
+ pll->PLL0_FEED = 0xAA;
+ pll->PLL0_FEED = 0x55;
+
+ /*
+ * VPB setup.
+ * PCLK = CCLK / 4.
+ */
+ VPBDIV = VPD_D4;
+
+ /*
+ * I/O pins configuration.
+ */
+ PINSEL0 = VAL_PINSEL0;
+ PINSEL1 = VAL_PINSEL1;
+ PINSEL2 = VAL_PINSEL2;
+ IO0DIR = VAL_FIO0DIR;
+ IO0SET = 0xFFFFFFFF;
+ IO1DIR = VAL_FIO1DIR;
+ IO1SET = 0xFFFFFFFF;
+
+ /*
+ * Interrupt vectors assignment.
+ */
+ InitVIC();
+ VICDefVectAddr = (IOREG32)IrqHandler;
+
+ /*
+ * System Timer initialization, 1ms intervals.
+ */
+ SetVICVector(T0IrqHandler, 0, SOURCE_Timer0);
+ VICIntEnable = INTMASK(SOURCE_Timer0);
+ TC *timer = T0Base;
+ timer->TC_PR = VAL_TC0_PRESCALER;
+ timer->TC_MR0 = (PCLK / CH_FREQUENCY) / (VAL_TC0_PRESCALER + 1);
+ timer->TC_MCR = 3; /* Interrupt and clear TC on match MR0. */
+ timer->TC_TCR = 2; /* Reset counter and prescaler. */
+ timer->TC_TCR = 1; /* Timer enabled. */
+
+ /*
+ * Other subsystems.
+ */
+// InitSerial(1, 2);
+// InitSSP();
+// InitMMC();
+// InitBuzzer();
+}
diff --git a/demos/ARM7-LPC214x-GCC-minimal/board.h b/demos/ARM7-LPC214x-GCC-minimal/board.h
new file mode 100644
index 000000000..c9d3f01b3
--- /dev/null
+++ b/demos/ARM7-LPC214x-GCC-minimal/board.h
@@ -0,0 +1,64 @@
+/*
+ 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/>.
+*/
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+#define BOARD_OLIMEX_LCP_P2148
+
+/*
+ * The following values are implementation dependent. You may change them in
+ * order to match your HW.
+ */
+#define FOSC 12000000
+#define CCLK 48000000
+#define PCLK 12000000
+
+#define VAL_TC0_PRESCALER 0
+
+/*
+ * Pins configuration for Olimex LPC-P2148.
+ *
+ * PINSEL0
+ * P0 P0 P0 P0 P0 P0 RXD TXD SSE MOS MIS SCK SDA SCL RXD TXD
+ * 15 14 13 12 11 10 1 1 L0 I0 O0 0 0 0 0 0
+ * 00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01
+ * IN IN OUT OUT OUT OUT -- -- -- -- -- -- -- -- -- --
+ * 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0
+ *
+ * PINSEL1
+ * P0 AD P0 P0 -- -- AO -- VB P0 P0 P0 MOS MIS SCK P0
+ * 31 03 29 28 -- -- UT -- US 22 21 20 I1 O1 1 16
+ * 00 01 00 00 00 00 10 00 01 00 00 00 10 10 10 00
+ * OUT -- OUT OUT -- -- -- -- -- OUT OUT OUT -- -- -- IN
+ * 1 0 1 1 0 0 0 0 0 1 1 1 0 0 0 0
+ *
+ * PINSEL2
+ * -- -- -- -- -- -- -- -- -- -- -- -- -- -- GP DBG --
+ * -- -- -- -- -- -- -- -- -- -- -- -- -- -- IO --
+ * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0 1 00
+ * -- -- -- -- -- -- -- -- -- -- -- -- -- -- IN -- --
+ */
+#define VAL_PINSEL0 0x00055555
+#define VAL_PINSEL1 0x100840A8
+#define VAL_PINSEL2 0x00000004
+#define VAL_FIO0DIR 0xB0703C00
+#define VAL_FIO1DIR 0x00000000
+
+#endif /* _BOARD_H_ */