Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_ONSEMI/TARGET_NCS36510/pinmap.c@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16
<> 144:ef7eb2e8f9f7 17 /* Orion specific header files */
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 #include "pad.h"
<> 144:ef7eb2e8f9f7 20
<> 144:ef7eb2e8f9f7 21 /* MBED header files */
<> 144:ef7eb2e8f9f7 22 #include "pinmap.h"
<> 144:ef7eb2e8f9f7 23
<> 144:ef7eb2e8f9f7 24 void pin_function(PinName pin, int function)
<> 144:ef7eb2e8f9f7 25 {
<> 144:ef7eb2e8f9f7 26 /** - Enable the clock for PAD peripheral device */
<> 144:ef7eb2e8f9f7 27 CLOCK_ENABLE(CLOCK_CROSSB);
<> 144:ef7eb2e8f9f7 28
<> 144:ef7eb2e8f9f7 29 /* Note: GPIO 0,1,2,3 are used for UART 1, GPIO 8,9 are used for UART 2 */
<> 144:ef7eb2e8f9f7 30 CrossbReg_pt crossBar = (CrossbReg_t *)(CROSSBREG_BASE + (pin * CROSS_REG_ADRS_BYTE_SIZE));
<> 144:ef7eb2e8f9f7 31 crossBar->DIOCTRL0 = function;
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 /** - Disable the clock for PAD peripheral device */
<> 144:ef7eb2e8f9f7 34 CLOCK_DISABLE(CLOCK_CROSSB);
<> 144:ef7eb2e8f9f7 35 }
<> 144:ef7eb2e8f9f7 36
<> 144:ef7eb2e8f9f7 37 void pin_mode(PinName pin, PinMode mode)
<> 144:ef7eb2e8f9f7 38 {
<> 144:ef7eb2e8f9f7 39 /** - Get PAD IO register address for the PAD number */
<> 144:ef7eb2e8f9f7 40 PadReg_t *padRegOffset = (PadReg_t*)(PADREG_BASE + (pin * PAD_REG_ADRS_BYTE_SIZE));
<> 144:ef7eb2e8f9f7 41
<> 144:ef7eb2e8f9f7 42 /** - Enable the clock for PAD peripheral device */
<> 144:ef7eb2e8f9f7 43 CLOCK_ENABLE(CLOCK_PAD);
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 switch (mode) {
<> 144:ef7eb2e8f9f7 46 case PushPullPullDown:
<> 144:ef7eb2e8f9f7 47 padRegOffset->PADIO0.BITS.TYPE = PAD_OUTCFG_PUSHPULL;
<> 144:ef7eb2e8f9f7 48 padRegOffset->PADIO0.BITS.PULL = PAD_PULL_DOWN;
<> 144:ef7eb2e8f9f7 49 break;
<> 144:ef7eb2e8f9f7 50
<> 144:ef7eb2e8f9f7 51 case PushPullNoPull:
<> 144:ef7eb2e8f9f7 52 padRegOffset->PADIO0.BITS.TYPE = PAD_OUTCFG_PUSHPULL;
<> 144:ef7eb2e8f9f7 53 padRegOffset->PADIO0.BITS.PULL = PAD_PULL_NONE;
<> 144:ef7eb2e8f9f7 54 break;
<> 144:ef7eb2e8f9f7 55
<> 144:ef7eb2e8f9f7 56 case PushPullPullUp:
<> 144:ef7eb2e8f9f7 57 padRegOffset->PADIO0.BITS.TYPE = PAD_OUTCFG_PUSHPULL;
<> 144:ef7eb2e8f9f7 58 padRegOffset->PADIO0.BITS.PULL = PAD_PULL_UP;
<> 144:ef7eb2e8f9f7 59 break;
<> 144:ef7eb2e8f9f7 60
<> 144:ef7eb2e8f9f7 61 case OpenDrainPullDown:
<> 144:ef7eb2e8f9f7 62 padRegOffset->PADIO0.BITS.TYPE = PAD_OOUTCFG_OPENDRAIN;
<> 144:ef7eb2e8f9f7 63 padRegOffset->PADIO0.BITS.PULL = PAD_PULL_DOWN;
<> 144:ef7eb2e8f9f7 64 break;
<> 144:ef7eb2e8f9f7 65
<> 144:ef7eb2e8f9f7 66 case OpenDrainNoPull:
<> 144:ef7eb2e8f9f7 67 padRegOffset->PADIO0.BITS.TYPE = PAD_OOUTCFG_OPENDRAIN;
<> 144:ef7eb2e8f9f7 68 padRegOffset->PADIO0.BITS.PULL = PAD_PULL_NONE;
<> 144:ef7eb2e8f9f7 69 break;
<> 144:ef7eb2e8f9f7 70
<> 144:ef7eb2e8f9f7 71 case OpenDrainPullUp:
<> 144:ef7eb2e8f9f7 72 padRegOffset->PADIO0.BITS.TYPE = PAD_OOUTCFG_OPENDRAIN;
<> 144:ef7eb2e8f9f7 73 padRegOffset->PADIO0.BITS.PULL = PAD_PULL_UP;
<> 144:ef7eb2e8f9f7 74 break;
<> 144:ef7eb2e8f9f7 75
<> 144:ef7eb2e8f9f7 76 default:
<> 144:ef7eb2e8f9f7 77 break;
<> 144:ef7eb2e8f9f7 78
<> 144:ef7eb2e8f9f7 79 }
<> 144:ef7eb2e8f9f7 80
<> 144:ef7eb2e8f9f7 81 /** - Disable the clock for PAD peripheral device */
<> 144:ef7eb2e8f9f7 82 CLOCK_DISABLE(CLOCK_PAD);
<> 144:ef7eb2e8f9f7 83
<> 144:ef7eb2e8f9f7 84 }