mbed library sources
Dependents: frdm_kl05z_gpio_test
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Diff: targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c
- Revision:
- 13:0645d8841f51
- Parent:
- 10:3bc89ef62ce7
- Child:
- 19:398f4c622e1b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c Mon Aug 05 14:12:34 2013 +0300 @@ -0,0 +1,48 @@ +/* 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. + */ +#include "pinmap.h" +#include "error.h" + +void pin_function(PinName pin, int function) { + if (pin == (uint32_t)NC) return; + + uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; + int index = pin_number >> 4; + int offset = (pin_number & 0xF) << 1; + + PINCONARRAY->PINSEL[index] &= ~(0x3 << offset); + PINCONARRAY->PINSEL[index] |= function << offset; +} + +void pin_mode(PinName pin, PinMode mode) { + if (pin == (uint32_t)NC) { return; } + + uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; + int index = pin_number >> 5; + int offset = pin_number & 0x1F; + uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2; + + PINCONARRAY->PINMODE_OD[index] &= ~(drain << offset); + PINCONARRAY->PINMODE_OD[index] |= drain << offset; + + if (!drain) { + index = pin_number >> 4; + offset = (pin_number & 0xF) << 1; + + PINCONARRAY->PINMODE[index] &= ~(0x3 << offset); + PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset; + } +}