david dicarlo / mbed-src-FLL48

mbed library sources: Modified to operate FRDM-KL25Z at 48MHz from internal 32kHz oscillator (nothing else changed).

Fork of mbed-src by mbed official

The only file that changed is: mbed-src-FLL48/targets/cmsis/TARGET_Freescale/TARGET_KL25Z/system_MKL25Z4.h

targets/hal/TARGET_Freescale/TARGET_KL05Z/pinmap.c@20:4263a77256ae, 2013-09-10 (annotated)

Committer:
bogdanm
Date:
Tue Sep 10 15:14:19 2013 +0300
Revision:
20:4263a77256ae
Sync with git revision 171dda705c947bf910926a0b73d6a4797802554d

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 20:4263a77256ae 1 /* mbed Microcontroller Library
bogdanm 20:4263a77256ae 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 20:4263a77256ae 3 *
bogdanm 20:4263a77256ae 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 20:4263a77256ae 5 * you may not use this file except in compliance with the License.
bogdanm 20:4263a77256ae 6 * You may obtain a copy of the License at
bogdanm 20:4263a77256ae 7 *
bogdanm 20:4263a77256ae 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 20:4263a77256ae 9 *
bogdanm 20:4263a77256ae 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 20:4263a77256ae 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 20:4263a77256ae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 20:4263a77256ae 13 * See the License for the specific language governing permissions and
bogdanm 20:4263a77256ae 14 * limitations under the License.
bogdanm 20:4263a77256ae 15 */
bogdanm 20:4263a77256ae 16 #include "pinmap.h"
bogdanm 20:4263a77256ae 17 #include "error.h"
bogdanm 20:4263a77256ae 18
bogdanm 20:4263a77256ae 19 void pin_function(PinName pin, int function) {
bogdanm 20:4263a77256ae 20 if (pin == (uint32_t)NC) {
bogdanm 20:4263a77256ae 21 return;
bogdanm 20:4263a77256ae 22 }
bogdanm 20:4263a77256ae 23
bogdanm 20:4263a77256ae 24 uint32_t port_n = (uint32_t)pin >> PORT_SHIFT;
bogdanm 20:4263a77256ae 25 uint32_t pin_n = (uint32_t)(pin & 0x7C) >> 2;
bogdanm 20:4263a77256ae 26
bogdanm 20:4263a77256ae 27 SIM->SCGC5 |= 1 << (SIM_SCGC5_PORTA_SHIFT + port_n);
bogdanm 20:4263a77256ae 28 __IO uint32_t* pin_pcr = &(((PORT_Type *)(PORTA_BASE + (1 << PORT_SHIFT) * port_n)))->PCR[pin_n];
bogdanm 20:4263a77256ae 29
bogdanm 20:4263a77256ae 30 // pin mux bits: [10:8] -> 11100000000 = (0x700)
bogdanm 20:4263a77256ae 31 *pin_pcr = (*pin_pcr & ~0x700) | (function << 8);
bogdanm 20:4263a77256ae 32 }
bogdanm 20:4263a77256ae 33
bogdanm 20:4263a77256ae 34 void pin_mode(PinName pin, PinMode mode) {
bogdanm 20:4263a77256ae 35 if (pin == (uint32_t)NC) {
bogdanm 20:4263a77256ae 36 return;
bogdanm 20:4263a77256ae 37 }
bogdanm 20:4263a77256ae 38
bogdanm 20:4263a77256ae 39 __IO uint32_t* pin_pcr = (__IO uint32_t*)(PORTA_BASE + pin);
bogdanm 20:4263a77256ae 40
bogdanm 20:4263a77256ae 41 // pin pullup bits: [1:0] -> 11 = (0x3)
bogdanm 20:4263a77256ae 42 *pin_pcr = (*pin_pcr & ~0x3) | mode;
bogdanm 20:4263a77256ae 43 }