Changes to support running on smaller memory LPC device LPC1764
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Diff: targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 0:9b334a45a8ff
diff -r 423e1876dc07 -r ef7eb2e8f9f7 targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c --- a/targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c Tue Aug 02 14:07:36 2016 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c Fri Sep 02 15:07:44 2016 +0100 @@ -1,49 +1,49 @@ -/* 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 "mbed_assert.h" -#include "pinmap.h" -#include "mbed_error.h" - -void pin_function(PinName pin, int function) { - MBED_ASSERT(pin != (PinName)NC); - - 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) { - MBED_ASSERT(pin != (PinName)NC); - - 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; - } -} +/* 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 "mbed_assert.h" +#include "pinmap.h" +#include "mbed_error.h" + +void pin_function(PinName pin, int function) { + MBED_ASSERT(pin != (PinName)NC); + + 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) { + MBED_ASSERT(pin != (PinName)NC); + + 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; + } +}