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authorTaylor Vesely2012-03-26 16:43:43 -0600
committerTaylor Vesely2012-03-26 16:43:43 -0600
commitbf2b8aad2feff6126085e06c60c8e43842d6da43 (patch)
treec44b704195c1523d8a08cfd8bdb5b316fd8bbbae
parentfa1c6bc632d1fe9a84a7e38ecb239b5cedc15c15 (diff)
Added a bunch of register definitions and gpio_set() to LPC17xx gpio.
-rw-r--r--examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c9
-rw-r--r--include/libopencm3/lpc17xx/gpio.h65
-rw-r--r--lib/lpc17xx/gpio.c25
3 files changed, 98 insertions, 1 deletions
diff --git a/examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c
index cfc53a5..c351581 100644
--- a/examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c
+++ b/examples/lpc17xx/blueboard-lpc1768-h/miniblink/miniblink.c
@@ -33,7 +33,14 @@ int main(void)
/* Blink LED0 (P3_0) on the board. */
while (1) {
/* Manually: */
- GPIO1_SET = (1 << 29); /* LED off */
+ //GPIO1_SET = (1 << 29); /* LED off */
+ //for (i = 0; i < 800000; i++) /* Wait a bit. */
+ // __asm__("nop");
+ //GPIO1_CLR = (1 << 29); /* LED on */
+ //for (i = 0; i < 800000; i++) /* Wait a bit. */
+ // __asm__("nop");
+
+ gpio_set(GPIO1, GPIOPIN29); /* LED off */
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
GPIO1_CLR = (1 << 29); /* LED on */
diff --git a/include/libopencm3/lpc17xx/gpio.h b/include/libopencm3/lpc17xx/gpio.h
index e4bf784..567cd2c 100644
--- a/include/libopencm3/lpc17xx/gpio.h
+++ b/include/libopencm3/lpc17xx/gpio.h
@@ -34,6 +34,37 @@
/* GPIO number definitions (for convenience) */
#define GPIOPIN0 (1 << 0)
+#define GPIOPIN1 (1 << 1)
+#define GPIOPIN2 (1 << 2)
+#define GPIOPIN3 (1 << 3)
+#define GPIOPIN4 (1 << 4)
+#define GPIOPIN5 (1 << 5)
+#define GPIOPIN6 (1 << 6)
+#define GPIOPIN7 (1 << 7)
+#define GPIOPIN8 (1 << 8)
+#define GPIOPIN9 (1 << 9)
+#define GPIOPIN10 (1 << 10)
+#define GPIOPIN11 (1 << 11)
+#define GPIOPIN12 (1 << 12)
+#define GPIOPIN13 (1 << 13)
+#define GPIOPIN14 (1 << 14)
+#define GPIOPIN15 (1 << 15)
+#define GPIOPIN16 (1 << 16)
+#define GPIOPIN17 (1 << 17)
+#define GPIOPIN18 (1 << 18)
+#define GPIOPIN19 (1 << 19)
+#define GPIOPIN20 (1 << 20)
+#define GPIOPIN21 (1 << 21)
+#define GPIOPIN22 (1 << 22)
+#define GPIOPIN23 (1 << 23)
+#define GPIOPIN24 (1 << 24)
+#define GPIOPIN25 (1 << 25)
+#define GPIOPIN26 (1 << 26)
+#define GPIOPIN27 (1 << 27)
+#define GPIOPIN28 (1 << 28)
+#define GPIOPIN29 (1 << 29)
+#define GPIOPIN30 (1 << 30)
+#define GPIOPIN31 (1 << 31)
/* --- GPIO registers ------------------------------------------------------ */
@@ -45,6 +76,14 @@
#define GPIO3_DIR GPIO_DIR(GPIO3)
#define GPIO4_DIR GPIO_DIR(GPIO4)
+/* GPIO fast mask register (GPIOn_DIR) */
+#define GPIO_MASK(port) MMIO32(port + 0x10)
+#define GPIO0_MASK GPIO_MASK(GPIO0)
+#define GPIO1_MASK GPIO_MASK(GPIO1)
+#define GPIO2_MASK GPIO_MASK(GPIO2)
+#define GPIO3_MASK GPIO_MASK(GPIO3)
+#define GPIO4_MASK GPIO_MASK(GPIO4)
+
/* GPIO port pin value register (GPIOn_PIN) */
#define GPIO_PIN(port) MMIO32(port + 0x14)
#define GPIO0_PIN GPIO_PIN(GPIO0)
@@ -69,4 +108,30 @@
#define GPIO3_CLR GPIO_CLR(GPIO3)
#define GPIO4_CLR GPIO_CLR(GPIO4)
+/* GPIO interrupt register map */
+/* Interrupt enable rising edge */
+#define GPIO0_IER MMIO32(GPIOINTERRPUT_BASE + 0x90)
+#define GPIO2_IER MMIO32(GPIOINTERRPUT_BASE + 0xB0)
+
+/* Interrupt enable falling edge */
+#define GPIO0_IEF MMIO32(GPIOINTERRPUT_BASE + 0x94)
+#define GPIO2_IEF MMIO32(GPIOINTERRPUT_BASE + 0xB4)
+
+/* Interrupt status rising edge */
+#define GPIO0_ISR MMIO32(GPIOINTERRPUT_BASE + 0x84)
+#define GPIO2_ISR MMIO32(GPIOINTERRPUT_BASE + 0xA4)
+
+/* Interrupt status falling edge */
+#define GPIO0_ISF MMIO32(GPIOINTERRPUT_BASE + 0x88)
+#define GPIO2_ISF MMIO32(GPIOINTERRPUT_BASE + 0xA8)
+
+/* Interrupt clear */
+#define GPIO0_IC MMIO32(GPIOINTERRPUT_BASE + 0x8C)
+#define GPIO1_IC MMIO32(GPIOINTERRPUT_BASE + 0xAC)
+
+/* Overall interrupt status */
+#define GPIO_IS MMIO32(GPIOINTERRPUT_BASE + 0x80)
+
+void gpio_set(u32 gpioport, u32 gpios);
+
#endif
diff --git a/lib/lpc17xx/gpio.c b/lib/lpc17xx/gpio.c
index e69de29..8913082 100644
--- a/lib/lpc17xx/gpio.c
+++ b/lib/lpc17xx/gpio.c
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/lpc17xx/gpio.h>
+
+void gpio_set(u32 gpioport, u32 gpios)
+{
+ GPIO_SET(gpioport) = gpios;
+}