Date: March 20, 2011 This library is created from "LPC17xx CMSIS-Compliant Standard Peripheral Firmware Driver Library (GNU, Keil, IAR) (Jan 28, 2011)", available from NXP's website, under "All microcontrollers support documents" [[http://ics.nxp.com/support/documents/microcontrollers/?type=software]] You will need to follow [[/projects/libraries/svn/mbed/trunk/LPC1768/LPC17xx.h]] while using this library Examples provided here [[/users/frank26080115/programs/LPC1700CMSIS_Examples/]] The beautiful thing is that NXP does not place copyright protection on any of the files in here Only a few modifications are made to make it compile with the mbed online compiler, I fixed some warnings as well. This is untested as of March 20, 2011 Forum post about this library: [[/forum/mbed/topic/2030/]]
lpc17xx_wdt.h@0:84d7747641aa, 2011-03-20 (annotated)
- Committer:
- frank26080115
- Date:
- Sun Mar 20 18:45:15 2011 +0000
- Revision:
- 0:84d7747641aa
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
frank26080115 | 0:84d7747641aa | 1 | /***********************************************************************//** |
frank26080115 | 0:84d7747641aa | 2 | * @file lpc17xx_wdt.h |
frank26080115 | 0:84d7747641aa | 3 | * @brief Contains all macro definitions and function prototypes |
frank26080115 | 0:84d7747641aa | 4 | * support for WDT firmware library on LPC17xx |
frank26080115 | 0:84d7747641aa | 5 | * @version 2.0 |
frank26080115 | 0:84d7747641aa | 6 | * @date 21. May. 2010 |
frank26080115 | 0:84d7747641aa | 7 | * @author NXP MCU SW Application Team |
frank26080115 | 0:84d7747641aa | 8 | ************************************************************************** |
frank26080115 | 0:84d7747641aa | 9 | * Software that is described herein is for illustrative purposes only |
frank26080115 | 0:84d7747641aa | 10 | * which provides customers with programming information regarding the |
frank26080115 | 0:84d7747641aa | 11 | * products. This software is supplied "AS IS" without any warranties. |
frank26080115 | 0:84d7747641aa | 12 | * NXP Semiconductors assumes no responsibility or liability for the |
frank26080115 | 0:84d7747641aa | 13 | * use of the software, conveys no license or title under any patent, |
frank26080115 | 0:84d7747641aa | 14 | * copyright, or mask work right to the product. NXP Semiconductors |
frank26080115 | 0:84d7747641aa | 15 | * reserves the right to make changes in the software without |
frank26080115 | 0:84d7747641aa | 16 | * notification. NXP Semiconductors also make no representation or |
frank26080115 | 0:84d7747641aa | 17 | * warranty that such application will be suitable for the specified |
frank26080115 | 0:84d7747641aa | 18 | * use without further testing or modification. |
frank26080115 | 0:84d7747641aa | 19 | **************************************************************************/ |
frank26080115 | 0:84d7747641aa | 20 | |
frank26080115 | 0:84d7747641aa | 21 | /* Peripheral group ----------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 22 | /** @defgroup WDT WDT |
frank26080115 | 0:84d7747641aa | 23 | * @ingroup LPC1700CMSIS_FwLib_Drivers |
frank26080115 | 0:84d7747641aa | 24 | * @{ |
frank26080115 | 0:84d7747641aa | 25 | */ |
frank26080115 | 0:84d7747641aa | 26 | |
frank26080115 | 0:84d7747641aa | 27 | #ifndef LPC17XX_WDT_H_ |
frank26080115 | 0:84d7747641aa | 28 | #define LPC17XX_WDT_H_ |
frank26080115 | 0:84d7747641aa | 29 | |
frank26080115 | 0:84d7747641aa | 30 | /* Includes ------------------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 31 | #include "LPC17xx.h" |
frank26080115 | 0:84d7747641aa | 32 | #include "lpc_types.h" |
frank26080115 | 0:84d7747641aa | 33 | |
frank26080115 | 0:84d7747641aa | 34 | |
frank26080115 | 0:84d7747641aa | 35 | #ifdef __cplusplus |
frank26080115 | 0:84d7747641aa | 36 | extern "C" |
frank26080115 | 0:84d7747641aa | 37 | { |
frank26080115 | 0:84d7747641aa | 38 | #endif |
frank26080115 | 0:84d7747641aa | 39 | |
frank26080115 | 0:84d7747641aa | 40 | |
frank26080115 | 0:84d7747641aa | 41 | /* Private Macros ------------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 42 | /** @defgroup WDT_Private_Macros WDT Private Macros |
frank26080115 | 0:84d7747641aa | 43 | * @{ |
frank26080115 | 0:84d7747641aa | 44 | */ |
frank26080115 | 0:84d7747641aa | 45 | |
frank26080115 | 0:84d7747641aa | 46 | /* --------------------- BIT DEFINITIONS -------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 47 | /** WDT interrupt enable bit */ |
frank26080115 | 0:84d7747641aa | 48 | #define WDT_WDMOD_WDEN ((uint32_t)(1<<0)) |
frank26080115 | 0:84d7747641aa | 49 | /** WDT interrupt enable bit */ |
frank26080115 | 0:84d7747641aa | 50 | #define WDT_WDMOD_WDRESET ((uint32_t)(1<<1)) |
frank26080115 | 0:84d7747641aa | 51 | /** WDT time out flag bit */ |
frank26080115 | 0:84d7747641aa | 52 | #define WDT_WDMOD_WDTOF ((uint32_t)(1<<2)) |
frank26080115 | 0:84d7747641aa | 53 | /** WDT Time Out flag bit */ |
frank26080115 | 0:84d7747641aa | 54 | #define WDT_WDMOD_WDINT ((uint32_t)(1<<3)) |
frank26080115 | 0:84d7747641aa | 55 | /** WDT Mode */ |
frank26080115 | 0:84d7747641aa | 56 | #define WDT_WDMOD(n) ((uint32_t)(1<<1)) |
frank26080115 | 0:84d7747641aa | 57 | |
frank26080115 | 0:84d7747641aa | 58 | /** Define divider index for microsecond ( us ) */ |
frank26080115 | 0:84d7747641aa | 59 | #define WDT_US_INDEX ((uint32_t)(1000000)) |
frank26080115 | 0:84d7747641aa | 60 | /** WDT Time out minimum value */ |
frank26080115 | 0:84d7747641aa | 61 | #define WDT_TIMEOUT_MIN ((uint32_t)(0xFF)) |
frank26080115 | 0:84d7747641aa | 62 | /** WDT Time out maximum value */ |
frank26080115 | 0:84d7747641aa | 63 | #define WDT_TIMEOUT_MAX ((uint32_t)(0xFFFFFFFF)) |
frank26080115 | 0:84d7747641aa | 64 | |
frank26080115 | 0:84d7747641aa | 65 | /** Watchdog mode register mask */ |
frank26080115 | 0:84d7747641aa | 66 | #define WDT_WDMOD_MASK (uint8_t)(0x02) |
frank26080115 | 0:84d7747641aa | 67 | /** Watchdog timer constant register mask */ |
frank26080115 | 0:84d7747641aa | 68 | #define WDT_WDTC_MASK (uint8_t)(0xFFFFFFFF) |
frank26080115 | 0:84d7747641aa | 69 | /** Watchdog feed sequence register mask */ |
frank26080115 | 0:84d7747641aa | 70 | #define WDT_WDFEED_MASK (uint8_t)(0x000000FF) |
frank26080115 | 0:84d7747641aa | 71 | /** Watchdog timer value register mask */ |
frank26080115 | 0:84d7747641aa | 72 | #define WDT_WDCLKSEL_MASK (uint8_t)(0x03) |
frank26080115 | 0:84d7747641aa | 73 | /** Clock selected from internal RC */ |
frank26080115 | 0:84d7747641aa | 74 | #define WDT_WDCLKSEL_RC (uint8_t)(0x00) |
frank26080115 | 0:84d7747641aa | 75 | /** Clock selected from PCLK */ |
frank26080115 | 0:84d7747641aa | 76 | #define WDT_WDCLKSEL_PCLK (uint8_t)(0x01) |
frank26080115 | 0:84d7747641aa | 77 | /** Clock selected from external RTC */ |
frank26080115 | 0:84d7747641aa | 78 | #define WDT_WDCLKSEL_RTC (uint8_t)(0x02) |
frank26080115 | 0:84d7747641aa | 79 | |
frank26080115 | 0:84d7747641aa | 80 | /* ---------------- CHECK PARAMETER DEFINITIONS ---------------------------- */ |
frank26080115 | 0:84d7747641aa | 81 | /* Macro check clock source selection */ |
frank26080115 | 0:84d7747641aa | 82 | #define PARAM_WDT_CLK_OPT(OPTION) ((OPTION ==WDT_CLKSRC_IRC)||(OPTION ==WDT_CLKSRC_IRC)\ |
frank26080115 | 0:84d7747641aa | 83 | ||(OPTION ==WDT_CLKSRC_IRC)) |
frank26080115 | 0:84d7747641aa | 84 | |
frank26080115 | 0:84d7747641aa | 85 | /* Macro check WDT mode */ |
frank26080115 | 0:84d7747641aa | 86 | #define PARAM_WDT_MODE_OPT(OPTION) ((OPTION ==WDT_MODE_INT_ONLY)||(OPTION ==WDT_MODE_RESET)) |
frank26080115 | 0:84d7747641aa | 87 | /** |
frank26080115 | 0:84d7747641aa | 88 | * @} |
frank26080115 | 0:84d7747641aa | 89 | */ |
frank26080115 | 0:84d7747641aa | 90 | |
frank26080115 | 0:84d7747641aa | 91 | |
frank26080115 | 0:84d7747641aa | 92 | /* Public Types --------------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 93 | /** @defgroup WDT_Public_Types WDT Public Types |
frank26080115 | 0:84d7747641aa | 94 | * @{ |
frank26080115 | 0:84d7747641aa | 95 | */ |
frank26080115 | 0:84d7747641aa | 96 | |
frank26080115 | 0:84d7747641aa | 97 | /** @brief Clock source option for WDT */ |
frank26080115 | 0:84d7747641aa | 98 | typedef enum { |
frank26080115 | 0:84d7747641aa | 99 | WDT_CLKSRC_IRC = 0, /*!< Clock source from Internal RC oscillator */ |
frank26080115 | 0:84d7747641aa | 100 | WDT_CLKSRC_PCLK = 1, /*!< Selects the APB peripheral clock (PCLK) */ |
frank26080115 | 0:84d7747641aa | 101 | WDT_CLKSRC_RTC = 2 /*!< Selects the RTC oscillator */ |
frank26080115 | 0:84d7747641aa | 102 | } WDT_CLK_OPT; |
frank26080115 | 0:84d7747641aa | 103 | |
frank26080115 | 0:84d7747641aa | 104 | /** @brief WDT operation mode */ |
frank26080115 | 0:84d7747641aa | 105 | typedef enum { |
frank26080115 | 0:84d7747641aa | 106 | WDT_MODE_INT_ONLY = 0, /*!< Use WDT to generate interrupt only */ |
frank26080115 | 0:84d7747641aa | 107 | WDT_MODE_RESET = 1 /*!< Use WDT to generate interrupt and reset MCU */ |
frank26080115 | 0:84d7747641aa | 108 | } WDT_MODE_OPT; |
frank26080115 | 0:84d7747641aa | 109 | |
frank26080115 | 0:84d7747641aa | 110 | /** |
frank26080115 | 0:84d7747641aa | 111 | * @} |
frank26080115 | 0:84d7747641aa | 112 | */ |
frank26080115 | 0:84d7747641aa | 113 | |
frank26080115 | 0:84d7747641aa | 114 | |
frank26080115 | 0:84d7747641aa | 115 | /* Public Functions ----------------------------------------------------------- */ |
frank26080115 | 0:84d7747641aa | 116 | /** @defgroup WDT_Public_Functions WDT Public Functions |
frank26080115 | 0:84d7747641aa | 117 | * @{ |
frank26080115 | 0:84d7747641aa | 118 | */ |
frank26080115 | 0:84d7747641aa | 119 | |
frank26080115 | 0:84d7747641aa | 120 | void WDT_Init (WDT_CLK_OPT ClkSrc, WDT_MODE_OPT WDTMode); |
frank26080115 | 0:84d7747641aa | 121 | void WDT_Start(uint32_t TimeOut); |
frank26080115 | 0:84d7747641aa | 122 | void WDT_Feed (void); |
frank26080115 | 0:84d7747641aa | 123 | void WDT_UpdateTimeOut ( uint32_t TimeOut); |
frank26080115 | 0:84d7747641aa | 124 | FlagStatus WDT_ReadTimeOutFlag (void); |
frank26080115 | 0:84d7747641aa | 125 | void WDT_ClrTimeOutFlag (void); |
frank26080115 | 0:84d7747641aa | 126 | uint32_t WDT_GetCurrentCount(void); |
frank26080115 | 0:84d7747641aa | 127 | |
frank26080115 | 0:84d7747641aa | 128 | /** |
frank26080115 | 0:84d7747641aa | 129 | * @} |
frank26080115 | 0:84d7747641aa | 130 | */ |
frank26080115 | 0:84d7747641aa | 131 | |
frank26080115 | 0:84d7747641aa | 132 | #ifdef __cplusplus |
frank26080115 | 0:84d7747641aa | 133 | } |
frank26080115 | 0:84d7747641aa | 134 | #endif |
frank26080115 | 0:84d7747641aa | 135 | |
frank26080115 | 0:84d7747641aa | 136 | #endif /* LPC17XX_WDT_H_ */ |
frank26080115 | 0:84d7747641aa | 137 | |
frank26080115 | 0:84d7747641aa | 138 | /** |
frank26080115 | 0:84d7747641aa | 139 | * @} |
frank26080115 | 0:84d7747641aa | 140 | */ |
frank26080115 | 0:84d7747641aa | 141 | |
frank26080115 | 0:84d7747641aa | 142 | /* --------------------------------- End Of File ------------------------------ */ |