1 //###########################################################################
2 //
3 // FILE: F2837xD_PieCtrl.c
4 //
5 // TITLE: F2837xD Device PIE Control Register Initialization Functions.
6 //
7 //###########################################################################
8 // $TI Release: F2837xD Support Library v3.05.00.00 $
9 // $Release Date: Tue Jun 26 03:15:23 CDT 2018 $
10 // $Copyright:
11 // Copyright (C) 2013-2018 Texas Instruments Incorporated - http://www.ti.com/
12 //
13 // Redistribution and use in source and binary forms, with or without
14 // modification, are permitted provided that the following conditions
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16 //
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19 //
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21 // notice, this list of conditions and the following disclaimer in the
22 // documentation and/or other materials provided with the
23 // distribution.
24 //
25 // Neither the name of Texas Instruments Incorporated nor the names of
26 // its contributors may be used to endorse or promote products derived
27 // from this software without specific prior written permission.
28 //
29 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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40 // $
41 //###########################################################################
42
43 //
44 // Included Files
45 //
46 #include "F2837xD_device.h" // F2837xD Headerfile Include File
47 #include "F2837xD_Examples.h" // F2837xD Examples Include File
48
49 //
50 // InitPieCtrl - This function initializes the PIE control registers to a
51 // known state.
52 //
InitPieCtrl(void)53 void InitPieCtrl(void)
54 {
55 //
56 // Disable Interrupts at the CPU level:
57 //
58 DINT;
59
60 //
61 // Disable the PIE
62 //
63 PieCtrlRegs.PIECTRL.bit.ENPIE = 0;
64
65 //
66 // Clear all PIEIER registers:
67 //
68 PieCtrlRegs.PIEIER1.all = 0;
69 PieCtrlRegs.PIEIER2.all = 0;
70 PieCtrlRegs.PIEIER3.all = 0;
71 PieCtrlRegs.PIEIER4.all = 0;
72 PieCtrlRegs.PIEIER5.all = 0;
73 PieCtrlRegs.PIEIER6.all = 0;
74 PieCtrlRegs.PIEIER7.all = 0;
75 PieCtrlRegs.PIEIER8.all = 0;
76 PieCtrlRegs.PIEIER9.all = 0;
77 PieCtrlRegs.PIEIER10.all = 0;
78 PieCtrlRegs.PIEIER11.all = 0;
79 PieCtrlRegs.PIEIER12.all = 0;
80
81 //
82 // Clear all PIEIFR registers:
83 //
84 PieCtrlRegs.PIEIFR1.all = 0;
85 PieCtrlRegs.PIEIFR2.all = 0;
86 PieCtrlRegs.PIEIFR3.all = 0;
87 PieCtrlRegs.PIEIFR4.all = 0;
88 PieCtrlRegs.PIEIFR5.all = 0;
89 PieCtrlRegs.PIEIFR6.all = 0;
90 PieCtrlRegs.PIEIFR7.all = 0;
91 PieCtrlRegs.PIEIFR8.all = 0;
92 PieCtrlRegs.PIEIFR9.all = 0;
93 PieCtrlRegs.PIEIFR10.all = 0;
94 PieCtrlRegs.PIEIFR11.all = 0;
95 PieCtrlRegs.PIEIFR12.all = 0;
96 }
97
98 //
99 // EnableInterrupts - This function enables the PIE module and CPU __interrupts
100 //
EnableInterrupts()101 void EnableInterrupts()
102 {
103 //
104 // Enable the PIE
105 //
106 PieCtrlRegs.PIECTRL.bit.ENPIE = 1;
107
108 //
109 // Enables PIE to drive a pulse into the CPU
110 //
111 PieCtrlRegs.PIEACK.all = 0xFFFF;
112
113 //
114 // Enable Interrupts at the CPU level
115 //
116 EINT;
117 }
118
119 //
120 // End of file
121 //
122