Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_WIZNET/TARGET_W7500x/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 *******************************************************************************
<> 144:ef7eb2e8f9f7 3 * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
<> 144:ef7eb2e8f9f7 4 * All rights reserved.
<> 144:ef7eb2e8f9f7 5 *
<> 144:ef7eb2e8f9f7 6 * Redistribution and use in source and binary forms, with or without
<> 144:ef7eb2e8f9f7 7 * modification, are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 8 *
<> 144:ef7eb2e8f9f7 9 * 1. Redistributions of source code must retain the above copyright notice,
<> 144:ef7eb2e8f9f7 10 * this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 144:ef7eb2e8f9f7 12 * this list of conditions and the following disclaimer in the documentation
<> 144:ef7eb2e8f9f7 13 * and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 * 3. Neither the name of ARM Limited nor the names of its contributors
<> 144:ef7eb2e8f9f7 15 * may be used to endorse or promote products derived from this software
<> 144:ef7eb2e8f9f7 16 * without specific prior written permission.
<> 144:ef7eb2e8f9f7 17 *
<> 144:ef7eb2e8f9f7 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 144:ef7eb2e8f9f7 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 144:ef7eb2e8f9f7 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 144:ef7eb2e8f9f7 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 144:ef7eb2e8f9f7 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 144:ef7eb2e8f9f7 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 144:ef7eb2e8f9f7 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 28 *******************************************************************************
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 #include "mbed_assert.h"
<> 144:ef7eb2e8f9f7 32 #include "pinmap.h"
<> 144:ef7eb2e8f9f7 33 #include "PortNames.h"
<> 144:ef7eb2e8f9f7 34 #include "mbed_error.h"
<> 144:ef7eb2e8f9f7 35 #include "W7500x.h"
<> 144:ef7eb2e8f9f7 36 #include "W7500x_gpio.h"
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 uint32_t Get_GPIO_BaseAddress(uint32_t port_idx)
<> 144:ef7eb2e8f9f7 40 {
<> 144:ef7eb2e8f9f7 41 uint32_t gpio_add = 0;
<> 144:ef7eb2e8f9f7 42 switch(port_idx) {
<> 144:ef7eb2e8f9f7 43 case PortA:
<> 144:ef7eb2e8f9f7 44 gpio_add = GPIOA_BASE;
<> 144:ef7eb2e8f9f7 45 break;
<> 144:ef7eb2e8f9f7 46 case PortB:
<> 144:ef7eb2e8f9f7 47 gpio_add = GPIOB_BASE;
<> 144:ef7eb2e8f9f7 48 break;
<> 144:ef7eb2e8f9f7 49 case PortC:
<> 144:ef7eb2e8f9f7 50 gpio_add = GPIOC_BASE;
<> 144:ef7eb2e8f9f7 51 break;
<> 144:ef7eb2e8f9f7 52 case PortD:
<> 144:ef7eb2e8f9f7 53 gpio_add = GPIOD_BASE;
<> 144:ef7eb2e8f9f7 54 break;
<> 144:ef7eb2e8f9f7 55 default:
<> 144:ef7eb2e8f9f7 56 error("Pinmap error: wrong port number.");
<> 144:ef7eb2e8f9f7 57 break;
<> 144:ef7eb2e8f9f7 58 }
<> 144:ef7eb2e8f9f7 59 return gpio_add;
<> 144:ef7eb2e8f9f7 60 }
<> 144:ef7eb2e8f9f7 61
<> 144:ef7eb2e8f9f7 62 /**
<> 144:ef7eb2e8f9f7 63 * Configure pin (input, output, alternate function or analog) + output speed + AF
<> 144:ef7eb2e8f9f7 64 */
<> 144:ef7eb2e8f9f7 65
<> 144:ef7eb2e8f9f7 66 void pin_function(PinName pin, int data) {
<> 144:ef7eb2e8f9f7 67 MBED_ASSERT(pin != (PinName)NC);
<> 144:ef7eb2e8f9f7 68 // Get the pin informations
<> 144:ef7eb2e8f9f7 69 uint32_t mode = WIZ_PIN_MODE(data);
<> 144:ef7eb2e8f9f7 70 uint32_t pupd = WIZ_PIN_PUPD(data);
<> 144:ef7eb2e8f9f7 71 uint32_t afnum = WIZ_PIN_AFNUM(data);
<> 144:ef7eb2e8f9f7 72
<> 144:ef7eb2e8f9f7 73 uint32_t port_num = WIZ_PORT(pin);
<> 144:ef7eb2e8f9f7 74 uint32_t pin_index = WIZ_PIN_INDEX(pin);
<> 144:ef7eb2e8f9f7 75
<> 144:ef7eb2e8f9f7 76 GPIO_TypeDef *gpio;
<> 144:ef7eb2e8f9f7 77
<> 144:ef7eb2e8f9f7 78 // Configure Alternate Function
<> 144:ef7eb2e8f9f7 79 // Warning: Must be done before the GPIO is initialized
<> 144:ef7eb2e8f9f7 80 switch (afnum) {
<> 144:ef7eb2e8f9f7 81 case 0:
<> 144:ef7eb2e8f9f7 82 HAL_PAD_AFConfig((PAD_Type)port_num, (uint16_t)pin_index, (PAD_AF_TypeDef)Px_AFSR_AF0);
<> 144:ef7eb2e8f9f7 83 break;
<> 144:ef7eb2e8f9f7 84 case 1:
<> 144:ef7eb2e8f9f7 85 HAL_PAD_AFConfig((PAD_Type)port_num, (uint16_t)pin_index, (PAD_AF_TypeDef)Px_AFSR_AF1);
<> 144:ef7eb2e8f9f7 86 break;
<> 144:ef7eb2e8f9f7 87 case 2:
<> 144:ef7eb2e8f9f7 88 HAL_PAD_AFConfig((PAD_Type)port_num, (uint16_t)pin_index, (PAD_AF_TypeDef)Px_AFSR_AF2);
<> 144:ef7eb2e8f9f7 89 break;
<> 144:ef7eb2e8f9f7 90 case 3:
<> 144:ef7eb2e8f9f7 91 HAL_PAD_AFConfig((PAD_Type)port_num, (uint16_t)pin_index, (PAD_AF_TypeDef)Px_AFSR_AF3);
<> 144:ef7eb2e8f9f7 92 break;
<> 144:ef7eb2e8f9f7 93 default:
<> 144:ef7eb2e8f9f7 94 break;
<> 144:ef7eb2e8f9f7 95 }
<> 144:ef7eb2e8f9f7 96
<> 144:ef7eb2e8f9f7 97 if(mode == WIZ_MODE_AF)
<> 144:ef7eb2e8f9f7 98 return;
<> 144:ef7eb2e8f9f7 99
<> 144:ef7eb2e8f9f7 100 // Configure GPIO
<> 144:ef7eb2e8f9f7 101 gpio = (GPIO_TypeDef *)Get_GPIO_BaseAddress(port_num);
<> 144:ef7eb2e8f9f7 102
<> 144:ef7eb2e8f9f7 103 GPIO_InitTypeDef GPIO_InitStructure;
<> 144:ef7eb2e8f9f7 104 GPIO_InitStructure.GPIO_Pin = pin_index;
<> 144:ef7eb2e8f9f7 105 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
<> 144:ef7eb2e8f9f7 106 GPIO_InitStructure.GPIO_Pad = (GPIOPad_TypeDef)pupd;
<> 144:ef7eb2e8f9f7 107 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
<> 144:ef7eb2e8f9f7 108 }
<> 144:ef7eb2e8f9f7 109
<> 144:ef7eb2e8f9f7 110 /**
<> 144:ef7eb2e8f9f7 111 * Configure pin pull-up/pull-down
<> 144:ef7eb2e8f9f7 112 */
<> 144:ef7eb2e8f9f7 113 void pin_mode(PinName pin, PinMode pupd)
<> 144:ef7eb2e8f9f7 114 {
<> 144:ef7eb2e8f9f7 115 MBED_ASSERT(pin != (PinName)NC);
<> 144:ef7eb2e8f9f7 116
<> 144:ef7eb2e8f9f7 117 uint32_t port_num = WIZ_PORT(pin);
<> 144:ef7eb2e8f9f7 118 uint32_t pin_num = WIZ_PIN_NUM(pin);
<> 144:ef7eb2e8f9f7 119
<> 144:ef7eb2e8f9f7 120 switch(port_num) {
<> 144:ef7eb2e8f9f7 121 case PortA:
<> 144:ef7eb2e8f9f7 122 PA_PCR->Port[pin_num] |= pupd;
<> 144:ef7eb2e8f9f7 123 break;
<> 144:ef7eb2e8f9f7 124 case PortB:
<> 144:ef7eb2e8f9f7 125 PB_PCR->Port[pin_num] |= pupd;
<> 144:ef7eb2e8f9f7 126 break;
<> 144:ef7eb2e8f9f7 127 case PortC:
<> 144:ef7eb2e8f9f7 128 PC_PCR->Port[pin_num] |= pupd;
<> 144:ef7eb2e8f9f7 129 break;
<> 144:ef7eb2e8f9f7 130 case PortD:
<> 144:ef7eb2e8f9f7 131 PD_PCR->Port[pin_num] |= pupd;
<> 144:ef7eb2e8f9f7 132 break;
<> 144:ef7eb2e8f9f7 133 default:
<> 144:ef7eb2e8f9f7 134 error("Pinmap error: wrong port number.");
<> 144:ef7eb2e8f9f7 135 return;
<> 144:ef7eb2e8f9f7 136 }
<> 144:ef7eb2e8f9f7 137 }