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targets/TARGET_ONSEMI/TARGET_NCS36510/Pad.c
- Committer:
- <>
- Date:
- 2016-10-28
- Revision:
- 149:156823d33999
File content as of revision 149:156823d33999:
#ifdef REVD /** ****************************************************************************** * @file pad.c * @brief PAD management support code * @internal * @author ON Semiconductor * $Rev: 2848 $ * $Date: 2014-04-01 22:48:18 +0530 (Tue, 01 Apr 2014) $ ****************************************************************************** * Copyright 2016 Semiconductor Components Industries LLC (d/b/a ON Semiconductor). * All rights reserved. This software and/or documentation is licensed by ON Semiconductor * under limited terms and conditions. The terms and conditions pertaining to the software * and/or documentation are available at http://www.onsemi.com/site/pdf/ONSEMI_T&C.pdf * (ON Semiconductor Standard Terms and Conditions of Sale, Section 8 Software) and * if applicable the software license agreement. Do not use this software and/or * documentation unless you have carefully read and you agree to the limited terms and * conditions. By using this software and/or documentation, you agree to the limited * terms and conditions. * * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. * @endinternal * * @ingroup pad * * @details */ /************************************************************************************************* * * * Header files * * * *************************************************************************************************/ #include "memory_map.h" #include "pad_map.h" #include "clock.h" /************************************************************************************************* * * * Symbolic Constants * * * *************************************************************************************************/ #define PAD_CTRL_OP_DRIVE_STRENGTH_MASK (uint32_t)0x1C #define PAD_NUM_OF_IO 17 #define PAD_OP_DRIVE_STRGTH_MAX 7 #define PAD_OP_DRIVE_TYPE_MAX 1 #define PAD_OP_PULL_TYPE_MAX 3 #define PAD_REG_ADRS_BYTE_SIZE 4 #define PAD_OP_DRIVE_STRGTH_BIT_POS 2 #define PAD_OP_DRIVE_TYPE_BIT_POS 5 #define PAD_OP_PULL_TYPE_BIT_POS 0 /************************************************************************************************* * * * Global variables * * * *************************************************************************************************/ /* Peripheral PAD register mutex */ /* sem_pt GlobMutexPadReg; */ /************************************************************************************************* * * * Functions * * * *************************************************************************************************/ /** Find description at pad.h */ void fPadInit() { /** - Enable the clock for PAD peripheral device */ CLOCK_ENABLE(CLOCK_PAD); /** - Set pad parameters, output drive strength, pull piece control, output drive type */ PADREG->PADIO0.WORD = PAD_OUTPUT_PN_L1_OD; /* UART1 TXD */ PADREG->PADIO1.WORD = PAD_INPUT_PD_L1_PP; /* UART1 RXD */ PADREG->PADIO2.WORD = PAD_INPUT_PD_L1_PP; /* UART1 CTS */ PADREG->PADIO3.WORD = PAD_OUTPUT_PN_L1_OD; /* UART1 RTS */ PADREG->PADIO4.WORD = PAD_UNUSED_PD_L0_PP; PADREG->PADIO5.WORD = PAD_UNUSED_PD_L0_PP; PADREG->PADIO6.WORD = PAD_UNUSED_PD_L0_PP; PADREG->PADIO7.WORD = PAD_UNUSED_PD_L0_PP; PADREG->PADIO8.WORD = PAD_OUTPUT_PN_L1_OD; /* UART2 TXD */ PADREG->PADIO9.WORD = PAD_INPUT_PD_L1_PP; /* UART2 RXD */ PADREG->PADIO10.WORD = PAD_UNUSED_PD_L0_PP; PADREG->PADIO11.WORD = PAD_INPUT_PD_L1_PP; /* SWO */ PADREG->PADIO12.WORD = PAD_INPUT_PD_L1_PP; /* SWCLK */ PADREG->PADIO13.WORD = PAD_INPUT_PD_L1_PP; /* SWDIO */ PADREG->PADIO14.WORD = PAD_INPUT_PD_L1_PP; PADREG->PADIO15.WORD = PAD_UNUSED_PD_L0_PP; PADREG->PADIO16.WORD = PAD_UNUSED_PD_L0_PP; PADREG->PADIO17.WORD = PAD_UNUSED_PD_L0_PP; /** - Disable the clock for PAD peripheral device */ CLOCK_DISABLE(CLOCK_PAD); } /** Find description at pad.h */ boolean fPadIOCtrl(uint8_t PadNum, uint8_t OutputDriveStrength, uint8_t OutputDriveType, uint8_t PullType) { PadReg_t *PadRegOffset; /** \verbatim Table: O/p drive strength Drive strength 3.3V (min/typ/max) 1V (min/typ/max) 000 1/1.4/2.1 mA 0.043/0.07/0.11 mA 001 2/2.7/4.1 mA 0.086/0.15/0.215 mA 010 4.1/5.3/7.8 mA 0.188/0.3/0.4 mA 011 8.1/10.4/15 8 mA 0.4/0.6/0.81 mA 100 20.8/26/37 mA* 1/1.6/2.2 mA 101 40.5/50/70 mA* 2/3/4.3 mA 11x 57/73/102 mA* 3/4.6/6.2 mA *Values are only accessible when CDBGPWRUPREQ is high. This limits the maximum output current in functional mode. \endverbatim */ if((PadNum <= PAD_NUM_OF_IO) && (OutputDriveStrength <= PAD_OP_DRIVE_STRGTH_MAX) && (OutputDriveType <= PAD_OP_DRIVE_TYPE_MAX) && (PullType <= PAD_OP_PULL_TYPE_MAX)) { /** - Get PAD IO register address for the PAD number */ PadRegOffset = (PadReg_t*)(PADREG_BASE + (PadNum * PAD_REG_ADRS_BYTE_SIZE)); /** - Enable the clock for PAD peripheral device */ CLOCK_ENABLE(CLOCK_PAD); /** - Set drive type, pulltype & drive strength */ PadRegOffset->PADIO0.WORD = (uint32_t)((PullType << PAD_OP_PULL_TYPE_BIT_POS) | (OutputDriveStrength << PAD_OP_DRIVE_STRGTH_BIT_POS) | (OutputDriveType << PAD_OP_DRIVE_TYPE_BIT_POS)); /** - Disable the clock for PAD peripheral device */ CLOCK_DISABLE(CLOCK_PAD); return True; } /* Invalid parameter/s */ return False; } #endif /* REVD */