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_LPC81X/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 __IO uint32_t* IOCON_REGISTERS[18] = {
aravindsv 0:ba7650f404af 21 &LPC_IOCON->PIO0_0 , &LPC_IOCON->PIO0_1 , &LPC_IOCON->PIO0_2 ,
aravindsv 0:ba7650f404af 22 &LPC_IOCON->PIO0_3 , &LPC_IOCON->PIO0_4 , &LPC_IOCON->PIO0_5 ,
aravindsv 0:ba7650f404af 23 &LPC_IOCON->PIO0_6 , &LPC_IOCON->PIO0_7 , &LPC_IOCON->PIO0_8 ,
aravindsv 0:ba7650f404af 24 &LPC_IOCON->PIO0_9 , &LPC_IOCON->PIO0_10, &LPC_IOCON->PIO0_11,
aravindsv 0:ba7650f404af 25 &LPC_IOCON->PIO0_12, &LPC_IOCON->PIO0_13, &LPC_IOCON->PIO0_14,
aravindsv 0:ba7650f404af 26 &LPC_IOCON->PIO0_15, &LPC_IOCON->PIO0_16, &LPC_IOCON->PIO0_17,
aravindsv 0:ba7650f404af 27 };
aravindsv 0:ba7650f404af 28
aravindsv 0:ba7650f404af 29 void pin_function(PinName pin, int function) {
aravindsv 0:ba7650f404af 30 if (function == 0) {
aravindsv 0:ba7650f404af 31 // Disable initial fixed function for P0_2, P0_3 and P0_5
aravindsv 0:ba7650f404af 32 uint32_t enable = 0;
aravindsv 0:ba7650f404af 33 if (pin == P0_2)
aravindsv 0:ba7650f404af 34 enable = 1 << 3;
aravindsv 0:ba7650f404af 35 else if (pin == P0_3)
aravindsv 0:ba7650f404af 36 enable = 1 << 2;
aravindsv 0:ba7650f404af 37 else if (pin == P0_5)
aravindsv 0:ba7650f404af 38 enable = 1 << 6;
aravindsv 0:ba7650f404af 39 LPC_SWM->PINENABLE0 |= enable;
aravindsv 0:ba7650f404af 40 }
aravindsv 0:ba7650f404af 41 }
aravindsv 0:ba7650f404af 42
aravindsv 0:ba7650f404af 43 void pin_mode(PinName pin, PinMode mode) {
aravindsv 0:ba7650f404af 44 MBED_ASSERT(pin != (PinName)NC);
aravindsv 0:ba7650f404af 45
aravindsv 0:ba7650f404af 46 if ((pin == 10) || (pin == 11)) {
aravindsv 0:ba7650f404af 47 // True open-drain pins can be configured for different I2C-bus speeds
aravindsv 0:ba7650f404af 48 return;
aravindsv 0:ba7650f404af 49 }
aravindsv 0:ba7650f404af 50
aravindsv 0:ba7650f404af 51 __IO uint32_t *reg = IOCON_REGISTERS[pin];
aravindsv 0:ba7650f404af 52
aravindsv 0:ba7650f404af 53 if (mode == OpenDrain) {
aravindsv 0:ba7650f404af 54 *reg |= (1 << 10);
aravindsv 0:ba7650f404af 55 } else {
aravindsv 0:ba7650f404af 56 uint32_t tmp = *reg;
aravindsv 0:ba7650f404af 57 tmp &= ~(0x3 << 3);
aravindsv 0:ba7650f404af 58 tmp |= (mode & 0x3) << 3;
aravindsv 0:ba7650f404af 59 *reg = tmp;
aravindsv 0:ba7650f404af 60 }
aravindsv 0:ba7650f404af 61 }