-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathDSP2833x_PieCtrl.c
82 lines (69 loc) · 2.5 KB
/
DSP2833x_PieCtrl.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
//###########################################################################
//
// FILE: DSP2833x_PieCtrl.c
//
// TITLE: DSP2833x Device PIE Control Register Initialization Functions.
//
//###########################################################################
// $TI Release: 2833x/2823x Header Files and Peripheral Examples V133 $
// $Release Date: June 8, 2012 $
//###########################################################################
#include "DSP2833x_Device.h" // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h" // DSP2833x Examples Include File
extern unsigned int sys_watchword;
//---------------------------------------------------------------------------
// InitPieCtrl:
//---------------------------------------------------------------------------
// This function initializes the PIE control registers to a known state.
//
void InitPieCtrl(void)
{
// Disable Interrupts at the CPU level:
DINT;
// Disable the PIE
PieCtrlRegs.PIECTRL.bit.ENPIE = 0;
// Clear all PIEIER registers:
PieCtrlRegs.PIEIER1.all = 0;
PieCtrlRegs.PIEIER2.all = 0;
PieCtrlRegs.PIEIER3.all = 0;
PieCtrlRegs.PIEIER4.all = 0;
PieCtrlRegs.PIEIER5.all = 0;
PieCtrlRegs.PIEIER6.all = 0;
PieCtrlRegs.PIEIER7.all = 0;
PieCtrlRegs.PIEIER8.all = 0;
PieCtrlRegs.PIEIER9.all = 0;
PieCtrlRegs.PIEIER10.all = 0;
PieCtrlRegs.PIEIER11.all = 0;
PieCtrlRegs.PIEIER12.all = 0;
// Clear all PIEIFR registers:
PieCtrlRegs.PIEIFR1.all = 0;
PieCtrlRegs.PIEIFR2.all = 0;
PieCtrlRegs.PIEIFR3.all = 0;
PieCtrlRegs.PIEIFR4.all = 0;
PieCtrlRegs.PIEIFR5.all = 0;
PieCtrlRegs.PIEIFR6.all = 0;
PieCtrlRegs.PIEIFR7.all = 0;
PieCtrlRegs.PIEIFR8.all = 0;
PieCtrlRegs.PIEIFR9.all = 0;
PieCtrlRegs.PIEIFR10.all = 0;
PieCtrlRegs.PIEIFR11.all = 0;
PieCtrlRegs.PIEIFR12.all = 0;
sys_watchword|=0x0004;
}
//---------------------------------------------------------------------------
// EnableInterrupts:
//---------------------------------------------------------------------------
// This function enables the PIE module and CPU interrupts
//
void EnableInterrupts()
{
// Enable the PIE
PieCtrlRegs.PIECTRL.bit.ENPIE = 1;
// Enables PIE to drive a pulse into the CPU
PieCtrlRegs.PIEACK.all = 0xFFFF;
// Enable Interrupts at the CPU level
EINT;
}
//===========================================================================
// End of file.
//===========================================================================