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LPCOpen Platform for NXP LPC Microcontrollers
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wwdt_17xx_40xx.h
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1 /*
2  * @brief LPC17xx/40xx WWDT chip driver
3  *
4  * @note
5  * Copyright(C) NXP Semiconductors, 2012
6  * All rights reserved.
7  *
8  * @par
9  * Software that is described herein is for illustrative purposes only
10  * which provides customers with programming information regarding the
11  * LPC products. This software is supplied "AS IS" without any warranties of
12  * any kind, and NXP Semiconductors and its licensor disclaim any and
13  * all warranties, express or implied, including all implied warranties of
14  * merchantability, fitness for a particular purpose and non-infringement of
15  * intellectual property rights. NXP Semiconductors assumes no responsibility
16  * or liability for the use of the software, conveys no license or rights under any
17  * patent, copyright, mask work right, or any other intellectual property rights in
18  * or to any products. NXP Semiconductors reserves the right to make changes
19  * in the software without notification. NXP Semiconductors also makes no
20  * representation or warranty that such application will be suitable for the
21  * specified use without further testing or modification.
22  *
23  * @par
24  * Permission to use, copy, modify, and distribute this software and its
25  * documentation is hereby granted, under NXP Semiconductors' and its
26  * licensor's relevant copyrights in the software, without fee, provided that it
27  * is used in conjunction with NXP Semiconductors microcontrollers. This
28  * copyright, permission, and disclaimer notice must appear in all copies of
29  * this code.
30  */
31 
32 #ifndef __WWDT_17XX_40XX_H_
33 #define __WWDT_17XX_40XX_H_
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
45 #define WDT_OSC (500000 / 4)
48 #define WWDT_TICKS_MIN 0xFF
49 
51 #define WWDT_TICKS_MAX 0xFFFFFF
52 
57 void Chip_WWDT_Init(LPC_WWDT_T *pWWDT);
58 
65 {
66  IP_WWDT_DeInit(pWWDT);
67 }
68 
76 {
77  IP_WWDT_SetTimeOut(pWWDT, timeout);
78 }
79 
88 {
89  IP_WWDT_Feed(pWWDT);
90 }
91 
92 #if defined(WATCHDOG_WINDOW_SUPPORT)
93 
102 {
103  IP_WWDT_SetWarning(pWWDT, timeout);
104 }
105 
116 {
117  IP_WWDT_SetWindow(pWWDT, timeout);
118 }
119 #endif /*defined(WATCHDOG_WINDOW_SUPPORT)*/
120 
132 {
133  IP_WWDT_SetOption(pWWDT, options);
134 }
135 
146 {
147  IP_WWDT_UnsetOption(pWWDT, options);
148 }
149 
156 {
157  IP_WWDT_Start(pWWDT);
158 }
159 
166 {
167  return IP_WWDT_GetStatus(pWWDT);
168 }
169 
179 {
180  IP_WWDT_ClearStatusFlag(pWWDT, status);
181 }
182 
189 {
190  return IP_WWDT_GetCurrentCount(pWWDT);
191 }
192 
193 #if defined(WATCHDOG_CLKSEL_SUPPORT)
194 
197 typedef enum CHIP_WWDT_CLK_SRC {
198  WWDT_CLKSRC_IRC = WWDT_CLKSEL_SOURCE(0),
199  WWDT_CLKSRC_WATCHDOG_PCLK = WWDT_CLKSEL_SOURCE(1),
200  WWDT_CLKSRC_RTC_CLK = WWDT_CLKSEL_SOURCE(2),
201 } CHIP_WWDT_CLK_SRC_T;
202 
209 STATIC INLINE void Chip_WWDT_SelClockSource(LPC_WWDT_T *pWWDT, CHIP_WWDT_CLK_SRC_T wdtClkSrc)
210 {
211  IP_WWDT_SelClockSource(pWWDT, (uint32_t) wdtClkSrc);
212 }
213 
214 #endif
215 
220 #ifdef __cplusplus
221 }
222 #endif
223 
224 #endif /* __WWDT_17XX_40XX_H_ */