Aravind Vadali / mbed-src-AV

mbed.h library with any bug fixes AV finds.

Dependents:   micromouse4_encoder_testing PID_Test Lab1_Test WorkingPID ... more

targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c@1:ebce2ad32f95, 2015-11-02 (annotated)

Committer:
aravindsv
Date:
Mon Nov 02 03:07:12 2015 +0000
Revision:
1:ebce2ad32f95
Parent:
0:ba7650f404af 
Changed the RCC timeout value to 500 ms, so total code startup time before program starts running is ~1s. Hopefully no side-effects from lower startup timeouts

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:ba7650f404af 1 /* mbed Microcontroller Library
aravindsv 0:ba7650f404af 2 * Copyright (c) 2006-2013 ARM Limited
aravindsv 0:ba7650f404af 3 *
aravindsv 0:ba7650f404af 4 * Licensed under the Apache License, Version 2.0 (the "License");
aravindsv 0:ba7650f404af 5 * you may not use this file except in compliance with the License.
aravindsv 0:ba7650f404af 6 * You may obtain a copy of the License at
aravindsv 0:ba7650f404af 7 *
aravindsv 0:ba7650f404af 8 * http://www.apache.org/licenses/LICENSE-2.0
aravindsv 0:ba7650f404af 9 *
aravindsv 0:ba7650f404af 10 * Unless required by applicable law or agreed to in writing, software
aravindsv 0:ba7650f404af 11 * distributed under the License is distributed on an "AS IS" BASIS,
aravindsv 0:ba7650f404af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
aravindsv 0:ba7650f404af 13 * See the License for the specific language governing permissions and
aravindsv 0:ba7650f404af 14 * limitations under the License.
aravindsv 0:ba7650f404af 15 */
aravindsv 0:ba7650f404af 16 #include "mbed_assert.h"
aravindsv 0:ba7650f404af 17 #include "pinmap.h"
aravindsv 0:ba7650f404af 18 #include "mbed_error.h"
aravindsv 0:ba7650f404af 19
aravindsv 0:ba7650f404af 20 void pin_function(PinName pin, int function) {
aravindsv 0:ba7650f404af 21 MBED_ASSERT(pin != (PinName)NC);
aravindsv 0:ba7650f404af 22
aravindsv 0:ba7650f404af 23 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
aravindsv 0:ba7650f404af 24 int index = pin_number >> 4;
aravindsv 0:ba7650f404af 25 int offset = (pin_number & 0xF) << 1;
aravindsv 0:ba7650f404af 26
aravindsv 0:ba7650f404af 27 PINCONARRAY->PINSEL[index] &= ~(0x3 << offset);
aravindsv 0:ba7650f404af 28 PINCONARRAY->PINSEL[index] |= function << offset;
aravindsv 0:ba7650f404af 29 }
aravindsv 0:ba7650f404af 30
aravindsv 0:ba7650f404af 31 void pin_mode(PinName pin, PinMode mode) {
aravindsv 0:ba7650f404af 32 MBED_ASSERT(pin != (PinName)NC);
aravindsv 0:ba7650f404af 33
aravindsv 0:ba7650f404af 34 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
aravindsv 0:ba7650f404af 35 int index = pin_number >> 5;
aravindsv 0:ba7650f404af 36 int offset = pin_number & 0x1F;
aravindsv 0:ba7650f404af 37 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
aravindsv 0:ba7650f404af 38
aravindsv 0:ba7650f404af 39 PINCONARRAY->PINMODE_OD[index] &= ~(drain << offset);
aravindsv 0:ba7650f404af 40 PINCONARRAY->PINMODE_OD[index] |= drain << offset;
aravindsv 0:ba7650f404af 41
aravindsv 0:ba7650f404af 42 if (!drain) {
aravindsv 0:ba7650f404af 43 index = pin_number >> 4;
aravindsv 0:ba7650f404af 44 offset = (pin_number & 0xF) << 1;
aravindsv 0:ba7650f404af 45
aravindsv 0:ba7650f404af 46 PINCONARRAY->PINMODE[index] &= ~(0x3 << offset);
aravindsv 0:ba7650f404af 47 PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset;
aravindsv 0:ba7650f404af 48 }
aravindsv 0:ba7650f404af 49 }