Mateusz Kowalik / Application

USB Serial application

Fork of USBSerial_HelloWorld by Samuel Mokrani

mbed-dev/targets/TARGET_ONSEMI/TARGET_NCS36510/Pad.c@11:b3f2a8bdac4d, 2017-12-16 (annotated)

Committer:
Zaitsev
Date:
Sat Dec 16 10:26:48 2017 +0000
Revision:
11:b3f2a8bdac4d
Parent:
10:41552d038a69 
A copy for D.S;

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Zaitsev 10:41552d038a69 1 /**
Zaitsev 10:41552d038a69 2 ******************************************************************************
Zaitsev 10:41552d038a69 3 * @file pad.c
Zaitsev 10:41552d038a69 4 * @brief PAD management support code
Zaitsev 10:41552d038a69 5 * @internal
Zaitsev 10:41552d038a69 6 * @author ON Semiconductor
Zaitsev 10:41552d038a69 7 * $Rev: 2848 $
Zaitsev 10:41552d038a69 8 * $Date: 2014-04-01 22:48:18 +0530 (Tue, 01 Apr 2014) $
Zaitsev 10:41552d038a69 9 ******************************************************************************
Zaitsev 10:41552d038a69 10 * Copyright 2016 Semiconductor Components Industries LLC (d/b/a “ON Semiconductor”).
Zaitsev 10:41552d038a69 11 * All rights reserved. This software and/or documentation is licensed by ON Semiconductor
Zaitsev 10:41552d038a69 12 * under limited terms and conditions. The terms and conditions pertaining to the software
Zaitsev 10:41552d038a69 13 * and/or documentation are available at http://www.onsemi.com/site/pdf/ONSEMI_T&C.pdf
Zaitsev 10:41552d038a69 14 * (“ON Semiconductor Standard Terms and Conditions of Sale, Section 8 Software”) and
Zaitsev 10:41552d038a69 15 * if applicable the software license agreement. Do not use this software and/or
Zaitsev 10:41552d038a69 16 * documentation unless you have carefully read and you agree to the limited terms and
Zaitsev 10:41552d038a69 17 * conditions. By using this software and/or documentation, you agree to the limited
Zaitsev 10:41552d038a69 18 * terms and conditions.
Zaitsev 10:41552d038a69 19 *
Zaitsev 10:41552d038a69 20 * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
Zaitsev 10:41552d038a69 21 * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
Zaitsev 10:41552d038a69 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
Zaitsev 10:41552d038a69 23 * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
Zaitsev 10:41552d038a69 24 * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
Zaitsev 10:41552d038a69 25 * @endinternal
Zaitsev 10:41552d038a69 26 *
Zaitsev 10:41552d038a69 27 * @ingroup pad
Zaitsev 10:41552d038a69 28 *
Zaitsev 10:41552d038a69 29 * @details
Zaitsev 10:41552d038a69 30 */
Zaitsev 10:41552d038a69 31
Zaitsev 10:41552d038a69 32 /*************************************************************************************************
Zaitsev 10:41552d038a69 33 * *
Zaitsev 10:41552d038a69 34 * Header files *
Zaitsev 10:41552d038a69 35 * *
Zaitsev 10:41552d038a69 36 *************************************************************************************************/
Zaitsev 10:41552d038a69 37
Zaitsev 10:41552d038a69 38 #include "memory_map.h"
Zaitsev 10:41552d038a69 39 #include "pad_map.h"
Zaitsev 10:41552d038a69 40 #include "clock.h"
Zaitsev 10:41552d038a69 41
Zaitsev 10:41552d038a69 42 /*************************************************************************************************
Zaitsev 10:41552d038a69 43 * *
Zaitsev 10:41552d038a69 44 * Symbolic Constants *
Zaitsev 10:41552d038a69 45 * *
Zaitsev 10:41552d038a69 46 *************************************************************************************************/
Zaitsev 10:41552d038a69 47 #define PAD_CTRL_OP_DRIVE_STRENGTH_MASK (uint32_t)0x1C
Zaitsev 10:41552d038a69 48 #define PAD_NUM_OF_IO 17
Zaitsev 10:41552d038a69 49 #define PAD_OP_DRIVE_STRGTH_MAX 7
Zaitsev 10:41552d038a69 50 #define PAD_OP_DRIVE_TYPE_MAX 1
Zaitsev 10:41552d038a69 51 #define PAD_OP_PULL_TYPE_MAX 3
Zaitsev 10:41552d038a69 52
Zaitsev 10:41552d038a69 53 #define PAD_REG_ADRS_BYTE_SIZE 4
Zaitsev 10:41552d038a69 54
Zaitsev 10:41552d038a69 55 #define PAD_OP_DRIVE_STRGTH_BIT_POS 2
Zaitsev 10:41552d038a69 56 #define PAD_OP_DRIVE_TYPE_BIT_POS 5
Zaitsev 10:41552d038a69 57 #define PAD_OP_PULL_TYPE_BIT_POS 0
Zaitsev 10:41552d038a69 58
Zaitsev 10:41552d038a69 59 /*************************************************************************************************
Zaitsev 10:41552d038a69 60 * *
Zaitsev 10:41552d038a69 61 * Global variables *
Zaitsev 10:41552d038a69 62 * *
Zaitsev 10:41552d038a69 63 *************************************************************************************************/
Zaitsev 10:41552d038a69 64
Zaitsev 10:41552d038a69 65 /* Peripheral PAD register mutex */
Zaitsev 10:41552d038a69 66 /* sem_pt GlobMutexPadReg; */
Zaitsev 10:41552d038a69 67
Zaitsev 10:41552d038a69 68 /*************************************************************************************************
Zaitsev 10:41552d038a69 69 * *
Zaitsev 10:41552d038a69 70 * Functions *
Zaitsev 10:41552d038a69 71 * *
Zaitsev 10:41552d038a69 72 *************************************************************************************************/
Zaitsev 10:41552d038a69 73
Zaitsev 10:41552d038a69 74 /** Find description at pad.h */
Zaitsev 10:41552d038a69 75 void fPadInit()
Zaitsev 10:41552d038a69 76 {
Zaitsev 10:41552d038a69 77 /** - Enable the clock for PAD peripheral device */
Zaitsev 10:41552d038a69 78 CLOCK_ENABLE(CLOCK_PAD);
Zaitsev 10:41552d038a69 79
Zaitsev 10:41552d038a69 80 /** - Set pad parameters, output drive strength, pull piece control, output drive type */
Zaitsev 10:41552d038a69 81 PADREG->PADIO0.WORD = PAD_OUTPUT_PN_L1_OD; /* UART1 TXD */
Zaitsev 10:41552d038a69 82 PADREG->PADIO1.WORD = PAD_INPUT_PD_L1_PP; /* UART1 RXD */
Zaitsev 10:41552d038a69 83 PADREG->PADIO2.WORD = PAD_INPUT_PD_L1_PP; /* UART1 CTS */
Zaitsev 10:41552d038a69 84 PADREG->PADIO3.WORD = PAD_OUTPUT_PN_L1_OD; /* UART1 RTS */
Zaitsev 10:41552d038a69 85 PADREG->PADIO4.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 86 PADREG->PADIO5.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 87 PADREG->PADIO6.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 88 PADREG->PADIO7.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 89 PADREG->PADIO8.WORD = PAD_OUTPUT_PN_L1_OD; /* UART2 TXD */
Zaitsev 10:41552d038a69 90 PADREG->PADIO9.WORD = PAD_INPUT_PD_L1_PP; /* UART2 RXD */
Zaitsev 10:41552d038a69 91 PADREG->PADIO10.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 92 PADREG->PADIO11.WORD = PAD_INPUT_PD_L1_PP; /* SWO */
Zaitsev 10:41552d038a69 93 PADREG->PADIO12.WORD = PAD_INPUT_PD_L1_PP; /* SWCLK */
Zaitsev 10:41552d038a69 94 PADREG->PADIO13.WORD = PAD_INPUT_PD_L1_PP; /* SWDIO */
Zaitsev 10:41552d038a69 95 PADREG->PADIO14.WORD = PAD_INPUT_PD_L1_PP;
Zaitsev 10:41552d038a69 96 PADREG->PADIO15.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 97 PADREG->PADIO16.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 98 PADREG->PADIO17.WORD = PAD_UNUSED_PD_L1_PP;
Zaitsev 10:41552d038a69 99
Zaitsev 10:41552d038a69 100 /** - Disable the clock for PAD peripheral device */
Zaitsev 10:41552d038a69 101 CLOCK_DISABLE(CLOCK_PAD);
Zaitsev 10:41552d038a69 102
Zaitsev 10:41552d038a69 103 }
Zaitsev 10:41552d038a69 104
Zaitsev 10:41552d038a69 105 /** Find description at pad.h */
Zaitsev 10:41552d038a69 106 boolean fPadIOCtrl(uint8_t PadNum, uint8_t OutputDriveStrength, uint8_t OutputDriveType, uint8_t PullType)
Zaitsev 10:41552d038a69 107 {
Zaitsev 10:41552d038a69 108 PadReg_t *PadRegOffset;
Zaitsev 10:41552d038a69 109 /** \verbatim
Zaitsev 10:41552d038a69 110 Table: O/p drive strength
Zaitsev 10:41552d038a69 111
Zaitsev 10:41552d038a69 112 Drive strength 3.3V (min/typ/max) 1V (min/typ/max)
Zaitsev 10:41552d038a69 113 000 1/1.4/2.1 mA 0.043/0.07/0.11 mA
Zaitsev 10:41552d038a69 114 001 2/2.7/4.1 mA 0.086/0.15/0.215 mA
Zaitsev 10:41552d038a69 115 010 4.1/5.3/7.8 mA 0.188/0.3/0.4 mA
Zaitsev 10:41552d038a69 116 011 8.1/10.4/15 8 mA 0.4/0.6/0.81 mA
Zaitsev 10:41552d038a69 117 100 20.8/26/37 mA* 1/1.6/2.2 mA
Zaitsev 10:41552d038a69 118 101 40.5/50/70 mA* 2/3/4.3 mA
Zaitsev 10:41552d038a69 119 11x 57/73/102 mA* 3/4.6/6.2 mA
Zaitsev 10:41552d038a69 120
Zaitsev 10:41552d038a69 121 *Values are only accessible when CDBGPWRUPREQ is high. This limits the maximum output current in functional mode. \endverbatim */
Zaitsev 10:41552d038a69 122
Zaitsev 10:41552d038a69 123
Zaitsev 10:41552d038a69 124 if((PadNum <= PAD_NUM_OF_IO) &&
Zaitsev 10:41552d038a69 125 (OutputDriveStrength <= PAD_OP_DRIVE_STRGTH_MAX) &&
Zaitsev 10:41552d038a69 126 (OutputDriveType <= PAD_OP_DRIVE_TYPE_MAX) && (PullType <= PAD_OP_PULL_TYPE_MAX)) {
Zaitsev 10:41552d038a69 127 /** - Get PAD IO register address for the PAD number */
Zaitsev 10:41552d038a69 128 PadRegOffset = (PadReg_t*)(PADREG_BASE + (PadNum * PAD_REG_ADRS_BYTE_SIZE));
Zaitsev 10:41552d038a69 129
Zaitsev 10:41552d038a69 130 /** - Enable the clock for PAD peripheral device */
Zaitsev 10:41552d038a69 131 CLOCK_ENABLE(CLOCK_PAD);
Zaitsev 10:41552d038a69 132
Zaitsev 10:41552d038a69 133 /** - Set drive type, pulltype & drive strength */
Zaitsev 10:41552d038a69 134 PadRegOffset->PADIO0.WORD = (uint32_t)((PullType << PAD_OP_PULL_TYPE_BIT_POS) |
Zaitsev 10:41552d038a69 135 (OutputDriveStrength << PAD_OP_DRIVE_STRGTH_BIT_POS) |
Zaitsev 10:41552d038a69 136 (OutputDriveType << PAD_OP_DRIVE_TYPE_BIT_POS));
Zaitsev 10:41552d038a69 137
Zaitsev 10:41552d038a69 138 /** - Disable the clock for PAD peripheral device */
Zaitsev 10:41552d038a69 139 CLOCK_DISABLE(CLOCK_PAD);
Zaitsev 10:41552d038a69 140 return True;
Zaitsev 10:41552d038a69 141 }
Zaitsev 10:41552d038a69 142 /* Invalid parameter/s */
Zaitsev 10:41552d038a69 143 return False;
Zaitsev 10:41552d038a69 144 }