PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)
Dependents: YATTT sd_map_test cPong SnowDemo ... more
PokittoLib
Library for programming Pokitto hardware
How to Use
- Import this library to online compiler (see button "import" on the right hand side
- DO NOT import mbed-src anymore, a better version is now included inside PokittoLib
- Change My_settings.h according to your project
- Start coding!
POKITTO_HW/timer_11u6x.c
- Committer:
- Pokitto
- Date:
- 2019-04-05
- Revision:
- 68:61a4ccb0a4b6
- Parent:
- 30:796f9611d2ac
File content as of revision 68:61a4ccb0a4b6:
/* * @brief LPC11u6x 16/32-bit Timer/PWM control functions * * @note * Copyright(C) NXP Semiconductors, 2013 * All rights reserved. * * @par * Software that is described herein is for illustrative purposes only * which provides customers with programming information regarding the * LPC products. This software is supplied "AS IS" without any warranties of * any kind, and NXP Semiconductors and its licensor disclaim any and * all warranties, express or implied, including all implied warranties of * merchantability, fitness for a particular purpose and non-infringement of * intellectual property rights. NXP Semiconductors assumes no responsibility * or liability for the use of the software, conveys no license or rights under any * patent, copyright, mask work right, or any other intellectual property rights in * or to any products. NXP Semiconductors reserves the right to make changes * in the software without notification. NXP Semiconductors also makes no * representation or warranty that such application will be suitable for the * specified use without further testing or modification. * * @par * Permission to use, copy, modify, and distribute this software and its * documentation is hereby granted, under NXP Semiconductors' and its * licensor's relevant copyrights in the software, without fee, provided that it * is used in conjunction with NXP Semiconductors microcontrollers. This * copyright, permission, and disclaimer notice must appear in all copies of * this code. */ //#include "chip.h" //#include "lpc_defs.h" #include "timer_11u6x.h" #include "clock_11u6x.h" /* System oscillator rate and RTC oscillator rate */ const uint32_t OscRateIn = 12000000; const uint32_t RTCOscRateIn = 32768; /***************************************************************************** * Private types/enumerations/variables ****************************************************************************/ /***************************************************************************** * Public types/enumerations/variables ****************************************************************************/ /***************************************************************************** * Private functions ****************************************************************************/ /* Static data/function define */ #define STATIC static /* External data/function define */ #define EXTERN extern /* Returns clock index for a specific timer referenced by IP block address */ STATIC CHIP_SYSCTL_CLOCK_T Chip_TIMER_GetClock(LPC_TIMER_T *pTMR) { CHIP_SYSCTL_CLOCK_T tmrClk; if (pTMR == LPC_TIMER32_1) { tmrClk = SYSCTL_CLOCK_CT32B1; } else if (pTMR == LPC_TIMER16_0) { tmrClk = SYSCTL_CLOCK_CT16B0; } else if (pTMR == LPC_TIMER16_1) { tmrClk = SYSCTL_CLOCK_CT16B1; } else { tmrClk = SYSCTL_CLOCK_CT32B0; } return tmrClk; } /***************************************************************************** * Public functions ****************************************************************************/ /* Initialize a timer */ void Chip_TIMER_Init(LPC_TIMER_T *pTMR) { Chip_Clock_EnablePeriphClock(Chip_TIMER_GetClock(pTMR)); } /* Shutdown a timer */ void Chip_TIMER_DeInit(LPC_TIMER_T *pTMR) { Chip_Clock_DisablePeriphClock(Chip_TIMER_GetClock(pTMR)); } /* Resets the timer terminal and prescale counts to 0 */ void Chip_TIMER_Reset(LPC_TIMER_T *pTMR) { uint32_t reg; /* Disable timer, set terminal count to non-0 */ reg = pTMR->TCR; pTMR->TCR = 0; pTMR->TC = 1; /* Reset timer counter */ pTMR->TCR = TIMER_RESET; /* Wait for terminal count to clear */ while (pTMR->TC != 0) {} /* Restore timer state */ pTMR->TCR = reg; } /* Sets external match control (MATn.matchnum) pin control */ void Chip_TIMER_ExtMatchControlSet(LPC_TIMER_T *pTMR, int8_t initial_state, TIMER_PIN_MATCH_STATE_T matchState, int8_t matchnum) { uint32_t mask, reg; /* Clear bits corresponding to selected match register */ mask = (1 << matchnum) | (0x03 << (4 + (matchnum * 2))); reg = pTMR->EMR &= ~mask; /* Set new configuration for selected match register */ pTMR->EMR = reg | (((uint32_t) initial_state) << matchnum) | (((uint32_t) matchState) << (4 + (matchnum * 2))); }