Diff: targets/hal/TARGET_NXP/TARGET_LPC43XX/pinmap.c

Revision:

20:4263a77256ae

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/hal/TARGET_NXP/TARGET_LPC43XX/pinmap.c	Tue Sep 10 15:14:19 2013 +0300
@@ -0,0 +1,43 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Ported to NXP LPC43XX by Micromint USA <support@micromint.com>
+ */
+#include "pinmap.h"
+#include "error.h"
+
+void pin_function(PinName pin, int function) {
+    if (pin == (uint32_t)NC) return;
+
+    __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);
+
+    // Set pin function
+    *reg = function;
+}
+
+void pin_mode(PinName pin, PinMode mode) {
+    if (pin == (uint32_t)NC) { return; }
+
+    if (mode == OpenDrain) error("OpenDrain not supported on LPC43XX");
+
+    __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);
+    uint32_t tmp = *reg;
+    
+    // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
+    tmp &= ~(0x3 << 3);
+    tmp |= (mode & 0x3) << 3;
+
+    *reg = tmp;
+}