Diff: targets/TARGET_NUVOTON/TARGET_M451/pinmap.c

Revision:

149:156823d33999

Parent:

144:ef7eb2e8f9f7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_M451/pinmap.c	Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,83 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2015-2016 Nuvoton
+ *
+ * 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.
+ */
+
+#include "mbed_assert.h"
+#include "pinmap.h"
+#include "PortNames.h"
+#include "mbed_error.h"
+
+/**
+ * Configure pin multi-function
+ */
+void pin_function(PinName pin, int data)
+{
+    MBED_ASSERT(pin != (PinName)NC);
+    uint32_t pin_index = NU_PINNAME_TO_PIN(pin);
+    uint32_t port_index = NU_PINNAME_TO_PORT(pin);
+    __IO uint32_t *GPx_MFPx = ((__IO uint32_t *) &SYS->GPA_MFPL) + port_index * 2 + (pin_index / 8);
+    //uint32_t MFP_Pos = NU_MFP_POS(pin_index);
+    uint32_t MFP_Msk = NU_MFP_MSK(pin_index);
+    
+    // E.g.: SYS->GPA_MFPL  = (SYS->GPA_MFPL & (~SYS_GPA_MFPL_PA0MFP_Msk) ) | SYS_GPA_MFPL_PA0MFP_SC0_CD  ;
+    *GPx_MFPx  = (*GPx_MFPx & (~MFP_Msk)) | data;
+    
+    // [TODO] Disconnect JTAG-DP + SW-DP signals.
+    // Warning: Need to reconnect under reset
+    //if ((pin == PA_13) || (pin == PA_14)) {
+    //
+    //}
+    //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
+    //
+    //}
+}
+
+/**
+ * Configure pin pull-up/pull-down
+ */
+void pin_mode(PinName pin, PinMode mode)
+{
+    MBED_ASSERT(pin != (PinName)NC);
+    uint32_t pin_index = NU_PINNAME_TO_PIN(pin);
+    uint32_t port_index = NU_PINNAME_TO_PORT(pin);
+    GPIO_T *gpio_base = NU_PORT_BASE(port_index);
+    
+    uint32_t mode_intern = GPIO_MODE_INPUT;
+    
+    switch (mode) {
+        case PullUp:
+            mode_intern = GPIO_MODE_INPUT;
+            break;
+            
+        case PullDown:
+        case PullNone:
+            // NOTE: Not support
+            return;
+        
+        case PushPull:
+            mode_intern = GPIO_MODE_OUTPUT;
+            break;
+            
+        case OpenDrain:
+            mode_intern = GPIO_MODE_OPEN_DRAIN;
+            break;
+            
+        case Quasi:
+            mode_intern = GPIO_MODE_QUASI;
+            break;
+    }
+    
+    GPIO_SetMode(gpio_base, 1 << pin_index, mode_intern);
+}