Первый
This commit is contained in:
45
Source/External/v120/DSP2833x_examples/flash/Example_28332_Flash.gel
vendored
Normal file
45
Source/External/v120/DSP2833x_examples/flash/Example_28332_Flash.gel
vendored
Normal file
@@ -0,0 +1,45 @@
|
||||
/*
|
||||
// TI File $Revision: /main/5 $
|
||||
// Checkin $Date: August 9, 2007 17:15:59 $
|
||||
//###########################################################################
|
||||
//
|
||||
// This .gel file can be used to help load and build the example project.
|
||||
// It should be unloaded from Code Composer Studio before loading another
|
||||
// project.
|
||||
//
|
||||
//###########################################################################
|
||||
// $TI Release: DSP2833x/DSP2823x Header Files V1.20 $
|
||||
// $Release Date: August 1, 2008 $
|
||||
//###########################################################################
|
||||
*/
|
||||
|
||||
menuitem "DSP28332 Flash Example"
|
||||
|
||||
hotmenu Load_and_Build_Project()
|
||||
{
|
||||
GEL_ProjectLoad("Example_28332_Flash.pjt");
|
||||
GEL_ProjectBuild("Example_28332_Flash.pjt");
|
||||
Setup_WatchWindow();
|
||||
}
|
||||
|
||||
hotmenu Load_Symbols()
|
||||
{
|
||||
GEL_SymbolLoad(".\\debug\\Example_28332_Flash.out");
|
||||
Setup_WatchWindow();
|
||||
}
|
||||
|
||||
hotmenu Setup_WatchWindow()
|
||||
{
|
||||
GEL_WatchReset();
|
||||
GEL_WatchAdd("EPwm1TimerIntCount,x");
|
||||
GEL_WatchAdd("EPwm2TimerIntCount,x");
|
||||
GEL_WatchAdd("EPwm3TimerIntCount,x");
|
||||
GEL_WatchAdd("LoopCount,x");
|
||||
GEL_WatchAdd("EPwm1Regs,x");
|
||||
GEL_WatchAdd("EPwm2Regs,x");
|
||||
GEL_WatchAdd("EPwm3Regs,x");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
46
Source/External/v120/DSP2833x_examples/flash/Example_28332_Flash.pjt
vendored
Normal file
46
Source/External/v120/DSP2833x_examples/flash/Example_28332_Flash.pjt
vendored
Normal file
@@ -0,0 +1,46 @@
|
||||
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
|
||||
|
||||
[Project Settings]
|
||||
ProjectName="DSP2833x"
|
||||
ProjectDir="C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\"
|
||||
ProjectType=Executable
|
||||
CPUFamily=TMS320C28XX
|
||||
Tool="Compiler"
|
||||
Tool="DspBiosBuilder"
|
||||
Tool="Linker"
|
||||
Config="Debug"
|
||||
Config="Release"
|
||||
|
||||
[Source Files]
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_ADC_cal.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_CodeStartBranch.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_CSMPasswords.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_DefaultIsr.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_MemCopy.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_PieCtrl.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_PieVect.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_SysCtrl.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_usDelay.asm"
|
||||
Source="..\..\DSP2833x_headers\source\DSP2833x_GlobalVariableDefs.c"
|
||||
Source="Example_2833xFlash.c"
|
||||
Source="..\..\DSP2833x_common\cmd\F28332.cmd"
|
||||
Source="..\..\DSP2833x_headers\cmd\DSP2833x_Headers_nonBIOS.cmd"
|
||||
|
||||
["Compiler" Settings: "Debug"]
|
||||
Options=-g -q -pdr -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Debug" -fs"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Debug" -i"..\..\DSP2833x_headers\include" -i"..\..\DSP2833x_common\include" -d"_DEBUG" -d"LARGE_MODEL" --float_support=fpu32 -ml -mt -v28
|
||||
|
||||
["Compiler" Settings: "Release"]
|
||||
Options=-q -o3 -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Release" -d"LARGE_MODEL" -ml -v28
|
||||
|
||||
["DspBiosBuilder" Settings: "Debug"]
|
||||
Options=-v28
|
||||
|
||||
["DspBiosBuilder" Settings: "Release"]
|
||||
Options=-v28
|
||||
|
||||
["Linker" Settings: "Debug"]
|
||||
Options=-q -c -ecode_start -m".\Debug\Example_28332_Flash.map" -o".\Debug\Example_28332_Flash.out" -stack0x380 -w -x -i"..\..\DSP2833x_headers\include" -l"rts2800_fpu32.lib"
|
||||
|
||||
["Linker" Settings: "Release"]
|
||||
Options=-q -c -o".\Release\Example_2833xFlash.out" -x
|
||||
|
||||
45
Source/External/v120/DSP2833x_examples/flash/Example_28334_Flash.gel
vendored
Normal file
45
Source/External/v120/DSP2833x_examples/flash/Example_28334_Flash.gel
vendored
Normal file
@@ -0,0 +1,45 @@
|
||||
/*
|
||||
// TI File $Revision: /main/5 $
|
||||
// Checkin $Date: August 9, 2007 17:16:06 $
|
||||
//###########################################################################
|
||||
//
|
||||
// This .gel file can be used to help load and build the example project.
|
||||
// It should be unloaded from Code Composer Studio before loading another
|
||||
// project.
|
||||
//
|
||||
//###########################################################################
|
||||
// $TI Release: DSP2833x/DSP2823x Header Files V1.20 $
|
||||
// $Release Date: August 1, 2008 $
|
||||
//###########################################################################
|
||||
*/
|
||||
|
||||
menuitem "DSP28334 Flash Example"
|
||||
|
||||
hotmenu Load_and_Build_Project()
|
||||
{
|
||||
GEL_ProjectLoad("Example_28334_Flash.pjt");
|
||||
GEL_ProjectBuild("Example_28334_Flash.pjt");
|
||||
Setup_WatchWindow();
|
||||
}
|
||||
|
||||
hotmenu Load_Symbols()
|
||||
{
|
||||
GEL_SymbolLoad(".\\debug\\Example_28334_Flash.out");
|
||||
Setup_WatchWindow();
|
||||
}
|
||||
|
||||
hotmenu Setup_WatchWindow()
|
||||
{
|
||||
GEL_WatchReset();
|
||||
GEL_WatchAdd("EPwm1TimerIntCount,x");
|
||||
GEL_WatchAdd("EPwm2TimerIntCount,x");
|
||||
GEL_WatchAdd("EPwm3TimerIntCount,x");
|
||||
GEL_WatchAdd("LoopCount,x");
|
||||
GEL_WatchAdd("EPwm1Regs,x");
|
||||
GEL_WatchAdd("EPwm2Regs,x");
|
||||
GEL_WatchAdd("EPwm3Regs,x");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
46
Source/External/v120/DSP2833x_examples/flash/Example_28334_Flash.pjt
vendored
Normal file
46
Source/External/v120/DSP2833x_examples/flash/Example_28334_Flash.pjt
vendored
Normal file
@@ -0,0 +1,46 @@
|
||||
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
|
||||
|
||||
[Project Settings]
|
||||
ProjectName="DSP2833x"
|
||||
ProjectDir="C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\"
|
||||
ProjectType=Executable
|
||||
CPUFamily=TMS320C28XX
|
||||
Tool="Compiler"
|
||||
Tool="DspBiosBuilder"
|
||||
Tool="Linker"
|
||||
Config="Debug"
|
||||
Config="Release"
|
||||
|
||||
[Source Files]
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_ADC_cal.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_CodeStartBranch.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_CSMPasswords.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_DefaultIsr.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_MemCopy.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_PieCtrl.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_PieVect.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_SysCtrl.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_usDelay.asm"
|
||||
Source="..\..\DSP2833x_headers\source\DSP2833x_GlobalVariableDefs.c"
|
||||
Source="Example_2833xFlash.c"
|
||||
Source="..\..\DSP2833x_common\cmd\F28334.cmd"
|
||||
Source="..\..\DSP2833x_headers\cmd\DSP2833x_Headers_nonBIOS.cmd"
|
||||
|
||||
["Compiler" Settings: "Debug"]
|
||||
Options=-g -q -pdr -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Debug" -fs"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Debug" -i"..\..\DSP2833x_headers\include" -i"..\..\DSP2833x_common\include" -d"_DEBUG" -d"LARGE_MODEL" --float_support=fpu32 -ml -mt -v28
|
||||
|
||||
["Compiler" Settings: "Release"]
|
||||
Options=-q -o3 -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Release" -d"LARGE_MODEL" -ml -v28
|
||||
|
||||
["DspBiosBuilder" Settings: "Debug"]
|
||||
Options=-v28
|
||||
|
||||
["DspBiosBuilder" Settings: "Release"]
|
||||
Options=-v28
|
||||
|
||||
["Linker" Settings: "Debug"]
|
||||
Options=-q -c -ecode_start -m".\Debug\Example_28334_Flash.map" -o".\Debug\Example_28334_Flash.out" -stack0x380 -w -x -i"..\..\DSP2833x_headers\include" -l"rts2800_fpu32.lib"
|
||||
|
||||
["Linker" Settings: "Release"]
|
||||
Options=-q -c -o".\Release\Example_2833xFlash.out" -x
|
||||
|
||||
45
Source/External/v120/DSP2833x_examples/flash/Example_28335_Flash.gel
vendored
Normal file
45
Source/External/v120/DSP2833x_examples/flash/Example_28335_Flash.gel
vendored
Normal file
@@ -0,0 +1,45 @@
|
||||
/*
|
||||
// TI File $Revision: /main/5 $
|
||||
// Checkin $Date: August 9, 2007 17:16:14 $
|
||||
//###########################################################################
|
||||
//
|
||||
// This .gel file can be used to help load and build the example project.
|
||||
// It should be unloaded from Code Composer Studio before loading another
|
||||
// project.
|
||||
//
|
||||
//###########################################################################
|
||||
// $TI Release: DSP2833x/DSP2823x Header Files V1.20 $
|
||||
// $Release Date: August 1, 2008 $
|
||||
//###########################################################################
|
||||
*/
|
||||
|
||||
menuitem "DSP28335 Flash Example"
|
||||
|
||||
hotmenu Load_and_Build_Project()
|
||||
{
|
||||
GEL_ProjectLoad("Example_28335_Flash.pjt");
|
||||
GEL_ProjectBuild("Example_28335_Flash.pjt");
|
||||
Setup_WatchWindow();
|
||||
}
|
||||
|
||||
hotmenu Load_Symbols()
|
||||
{
|
||||
GEL_SymbolLoad(".\\debug\\Example_28335_Flash.out");
|
||||
Setup_WatchWindow();
|
||||
}
|
||||
|
||||
hotmenu Setup_WatchWindow()
|
||||
{
|
||||
GEL_WatchReset();
|
||||
GEL_WatchAdd("EPwm1TimerIntCount,x");
|
||||
GEL_WatchAdd("EPwm2TimerIntCount,x");
|
||||
GEL_WatchAdd("EPwm3TimerIntCount,x");
|
||||
GEL_WatchAdd("LoopCount,x");
|
||||
GEL_WatchAdd("EPwm1Regs,x");
|
||||
GEL_WatchAdd("EPwm2Regs,x");
|
||||
GEL_WatchAdd("EPwm3Regs,x");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
46
Source/External/v120/DSP2833x_examples/flash/Example_28335_Flash.pjt
vendored
Normal file
46
Source/External/v120/DSP2833x_examples/flash/Example_28335_Flash.pjt
vendored
Normal file
@@ -0,0 +1,46 @@
|
||||
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
|
||||
|
||||
[Project Settings]
|
||||
ProjectName="DSP2833x"
|
||||
ProjectDir="C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\"
|
||||
ProjectType=Executable
|
||||
CPUFamily=TMS320C28XX
|
||||
Tool="Compiler"
|
||||
Tool="DspBiosBuilder"
|
||||
Tool="Linker"
|
||||
Config="Debug"
|
||||
Config="Release"
|
||||
|
||||
[Source Files]
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_ADC_cal.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_CodeStartBranch.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_CSMPasswords.asm"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_DefaultIsr.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_MemCopy.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_PieCtrl.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_PieVect.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_SysCtrl.c"
|
||||
Source="..\..\DSP2833x_common\source\DSP2833x_usDelay.asm"
|
||||
Source="..\..\DSP2833x_headers\source\DSP2833x_GlobalVariableDefs.c"
|
||||
Source="Example_2833xFlash.c"
|
||||
Source="..\..\DSP2833x_common\cmd\F28335.cmd"
|
||||
Source="..\..\DSP2833x_headers\cmd\DSP2833x_Headers_nonBIOS.cmd"
|
||||
|
||||
["Compiler" Settings: "Debug"]
|
||||
Options=-g -q -pdr -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Debug" -fs"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Debug" -i"..\..\DSP2833x_headers\include" -i"..\..\DSP2833x_common\include" -d"_DEBUG" -d"LARGE_MODEL" --float_support=fpu32 -ml -mt -v28
|
||||
|
||||
["Compiler" Settings: "Release"]
|
||||
Options=-q -o3 -fr"C:\tidcs\c28\DSP2833x\v120\DSP2833x_examples\flash\Release" -d"LARGE_MODEL" -ml -v28
|
||||
|
||||
["DspBiosBuilder" Settings: "Debug"]
|
||||
Options=-v28
|
||||
|
||||
["DspBiosBuilder" Settings: "Release"]
|
||||
Options=-v28
|
||||
|
||||
["Linker" Settings: "Debug"]
|
||||
Options=-q -c -ecode_start -m".\Debug\Example_28335_Flash.map" -o".\Debug\Example_28335_Flash.out" -stack0x380 -w -x -i"..\..\DSP2833x_headers\include" -l"rts2800_fpu32.lib"
|
||||
|
||||
["Linker" Settings: "Release"]
|
||||
Options=-q -c -o".\Release\Example_2833xFlash.out" -x
|
||||
|
||||
342
Source/External/v120/DSP2833x_examples/flash/Example_2833xFlash.c
vendored
Normal file
342
Source/External/v120/DSP2833x_examples/flash/Example_2833xFlash.c
vendored
Normal file
@@ -0,0 +1,342 @@
|
||||
// TI File $Revision: /main/10 $
|
||||
// Checkin $Date: April 21, 2008 15:42:33 $
|
||||
//###########################################################################
|
||||
//
|
||||
// FILE: Example_2833xFlash.c
|
||||
//
|
||||
// TITLE: DSP2833x ePWM Timer Interrupt From Flash Example.
|
||||
//
|
||||
// ASSUMPTIONS:
|
||||
//
|
||||
// This program requires the DSP2833x header files.
|
||||
//
|
||||
// As supplied, this project is configured for "boot to FLASH"
|
||||
// operation. The 2833x Boot Mode table is shown below.
|
||||
// For information on configuring the boot mode of an eZdsp,
|
||||
// please refer to the documentation included with the eZdsp,
|
||||
//
|
||||
// $Boot_Table:
|
||||
//
|
||||
// GPIO87 GPIO86 GPIO85 GPIO84
|
||||
// XA15 XA14 XA13 XA12
|
||||
// PU PU PU PU
|
||||
// ==========================================
|
||||
// 1 1 1 1 Jump to Flash <- "boot to Flash"
|
||||
// 1 1 1 0 SCI-A boot
|
||||
// 1 1 0 1 SPI-A boot
|
||||
// 1 1 0 0 I2C-A boot
|
||||
// 1 0 1 1 eCAN-A boot
|
||||
// 1 0 1 0 McBSP-A boot
|
||||
// 1 0 0 1 Jump to XINTF x16
|
||||
// 1 0 0 0 Jump to XINTF x32
|
||||
// 0 1 1 1 Jump to OTP
|
||||
// 0 1 1 0 Parallel GPIO I/O boot
|
||||
// 0 1 0 1 Parallel XINTF boot
|
||||
// 0 1 0 0 Jump to SARAM
|
||||
// 0 0 1 1 Branch to check boot mode
|
||||
// 0 0 1 0 Boot to flash, bypass ADC cal
|
||||
// 0 0 0 1 Boot to SARAM, bypass ADC cal
|
||||
// 0 0 0 0 Boot to SCI-A, bypass ADC cal
|
||||
// Boot_Table_End$
|
||||
//
|
||||
// DESCRIPTION:
|
||||
//
|
||||
// This example runs the ePWM interrupt example from flash.
|
||||
//
|
||||
// 1) Build the project
|
||||
// 2) Flash the .out file into the device.
|
||||
// 3) Set the hardware jumpers to boot to Flash
|
||||
// 4) Use the included GEL file to load the project, symbols
|
||||
// defined within the project and the variables into the watch
|
||||
// window.
|
||||
//
|
||||
// Steps that were taken to convert the ePWM example from RAM
|
||||
// to Flash execution:
|
||||
//
|
||||
// - Change the linker cmd file to reflect the flash memory map.
|
||||
// - Make sure any initialized sections are mapped to Flash.
|
||||
// In SDFlash utility this can be checked by the View->Coff/Hex
|
||||
// status utility. Any section marked as "load" should be
|
||||
// allocated to Flash.
|
||||
// - Make sure there is a branch instruction from the entry to Flash
|
||||
// at 0x33FFF6 to the beginning of code execution. This example
|
||||
// uses the DSP2833x_CodeStartBranch.asm file to accomplish this.
|
||||
// - Set boot mode Jumpers to "boot to Flash"
|
||||
// - For best performance from the flash, modify the waitstates
|
||||
// and enable the flash pipeline as shown in this example.
|
||||
// Note: any code that manipulates the flash waitstate and pipeline
|
||||
// control must be run from RAM. Thus these functions are located
|
||||
// in their own memory section called ramfuncs.
|
||||
//
|
||||
//
|
||||
// ePwm1 Interrupt will run from RAM and puts the flash into sleep mode
|
||||
// ePwm2 Interrupt will run from RAM and puts the flash into standby mode
|
||||
// ePWM3 Interrupt will run from FLASH
|
||||
//
|
||||
// As supplied:
|
||||
//
|
||||
// All timers have the same period
|
||||
// The timers are started sync'ed
|
||||
// An interrupt is taken on a zero event for each ePWM timer
|
||||
//
|
||||
// ePWM1: takes an interrupt every event
|
||||
// ePWM2: takes an interrupt every 2nd event
|
||||
// ePWM3: takes an interrupt every 3rd event
|
||||
//
|
||||
// Thus the Interrupt count for ePWM1, ePWM4-ePWM6 should be equal
|
||||
// The interrupt count for ePWM2 should be about half that of ePWM1
|
||||
// and the interrupt count for ePWM3 should be about 1/3 that of ePWM1
|
||||
//
|
||||
// Watch Variables:
|
||||
// EPwm1TimerIntCount
|
||||
// EPwm2TimerIntCount
|
||||
// EPwm3TimerIntCount
|
||||
//
|
||||
// Toggle GPIO32 while in the background loop.
|
||||
//
|
||||
//###########################################################################
|
||||
// $TI Release: DSP2833x/DSP2823x Header Files V1.20 $
|
||||
// $Release Date: August 1, 2008 $
|
||||
//###########################################################################
|
||||
|
||||
|
||||
#include "DSP28x_Project.h" // Device Headerfile and Examples Include File
|
||||
|
||||
// Configure which ePWM timer interrupts are enabled at the PIE level:
|
||||
// 1 = enabled, 0 = disabled
|
||||
#define PWM1_INT_ENABLE 1
|
||||
#define PWM2_INT_ENABLE 1
|
||||
#define PWM3_INT_ENABLE 1
|
||||
|
||||
// Configure the period for each timer
|
||||
#define PWM1_TIMER_TBPRD 0x1FFF
|
||||
#define PWM2_TIMER_TBPRD 0x1FFF
|
||||
#define PWM3_TIMER_TBPRD 0x1FFF
|
||||
|
||||
// Make this long enough so that we can see an LED toggle
|
||||
#define DELAY 1000000L
|
||||
|
||||
// Functions that will be run from RAM need to be assigned to
|
||||
// a different section. This section will then be mapped using
|
||||
// the linker cmd file.
|
||||
#pragma CODE_SECTION(epwm1_timer_isr, "ramfuncs");
|
||||
#pragma CODE_SECTION(epwm2_timer_isr, "ramfuncs");
|
||||
|
||||
// Prototype statements for functions found within this file.
|
||||
interrupt void epwm1_timer_isr(void);
|
||||
interrupt void epwm2_timer_isr(void);
|
||||
interrupt void epwm3_timer_isr(void);
|
||||
void InitEPwmTimer(void);
|
||||
|
||||
// Global variables used in this example
|
||||
Uint32 EPwm1TimerIntCount;
|
||||
Uint32 EPwm2TimerIntCount;
|
||||
Uint32 EPwm3TimerIntCount;
|
||||
Uint32 LoopCount;
|
||||
|
||||
// These are defined by the linker (see F28335.cmd)
|
||||
extern Uint16 RamfuncsLoadStart;
|
||||
extern Uint16 RamfuncsLoadEnd;
|
||||
extern Uint16 RamfuncsRunStart;
|
||||
|
||||
void main(void)
|
||||
{
|
||||
|
||||
// Step 1. Initialize System Control:
|
||||
// PLL, WatchDog, enable Peripheral Clocks
|
||||
// This example function is found in the DSP2833x_SysCtrl.c file.
|
||||
InitSysCtrl();
|
||||
|
||||
// Step 2. Initalize GPIO:
|
||||
// This example function is found in the DSP2833x_Gpio.c file and
|
||||
// illustrates how to set the GPIO to it's default state.
|
||||
// InitGpio(); // Skipped for this example
|
||||
|
||||
|
||||
// Step 3. Clear all interrupts and initialize PIE vector table:
|
||||
// Disable CPU interrupts
|
||||
DINT;
|
||||
|
||||
// Initialize the PIE control registers to their default state.
|
||||
// The default state is all PIE interrupts disabled and flags
|
||||
// are cleared.
|
||||
// This function is found in the DSP2833x_PieCtrl.c file.
|
||||
InitPieCtrl();
|
||||
|
||||
// Disable CPU interrupts and clear all CPU interrupt flags:
|
||||
IER = 0x0000;
|
||||
IFR = 0x0000;
|
||||
|
||||
// Initialize the PIE vector table with pointers to the shell Interrupt
|
||||
// Service Routines (ISR).
|
||||
// This will populate the entire table, even if the interrupt
|
||||
// is not used in this example. This is useful for debug purposes.
|
||||
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
|
||||
// This function is found in DSP2833x_PieVect.c.
|
||||
InitPieVectTable();
|
||||
|
||||
// Interrupts that are used in this example are re-mapped to
|
||||
// ISR functions found within this file.
|
||||
EALLOW; // This is needed to write to EALLOW protected registers
|
||||
PieVectTable.EPWM1_INT = &epwm1_timer_isr;
|
||||
PieVectTable.EPWM2_INT = &epwm2_timer_isr;
|
||||
PieVectTable.EPWM3_INT = &epwm3_timer_isr;
|
||||
EDIS; // This is needed to disable write to EALLOW protected registers
|
||||
|
||||
// Step 4. Initialize all the Device Peripherals:
|
||||
// This function is found in DSP2833x_InitPeripherals.c
|
||||
// InitPeripherals(); // Not required for this example
|
||||
InitEPwmTimer(); // For this example, only initialize the ePWM Timers
|
||||
|
||||
// Step 5. User specific code, enable interrupts:
|
||||
|
||||
// Copy time critical code and Flash setup code to RAM
|
||||
// This includes the following ISR functions: epwm1_timer_isr(), epwm2_timer_isr()
|
||||
// epwm3_timer_isr and and InitFlash();
|
||||
// The RamfuncsLoadStart, RamfuncsLoadEnd, and RamfuncsRunStart
|
||||
// symbols are created by the linker. Refer to the F28335.cmd file.
|
||||
MemCopy(&RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart);
|
||||
|
||||
// Call Flash Initialization to setup flash waitstates
|
||||
// This function must reside in RAM
|
||||
InitFlash();
|
||||
|
||||
// Initalize counters:
|
||||
EPwm1TimerIntCount = 0;
|
||||
EPwm2TimerIntCount = 0;
|
||||
EPwm3TimerIntCount = 0;
|
||||
LoopCount = 0;
|
||||
|
||||
// Enable CPU INT3 which is connected to EPWM1-3 INT:
|
||||
IER |= M_INT3;
|
||||
|
||||
// Enable EPWM INTn in the PIE: Group 3 interrupt 1-3
|
||||
PieCtrlRegs.PIEIER3.bit.INTx1 = PWM1_INT_ENABLE;
|
||||
PieCtrlRegs.PIEIER3.bit.INTx2 = PWM2_INT_ENABLE;
|
||||
PieCtrlRegs.PIEIER3.bit.INTx3 = PWM3_INT_ENABLE;
|
||||
|
||||
// Enable global Interrupts and higher priority real-time debug events:
|
||||
EINT; // Enable Global interrupt INTM
|
||||
ERTM; // Enable Global realtime interrupt DBGM
|
||||
|
||||
// Step 6. IDLE loop. Just sit and loop forever (optional):
|
||||
EALLOW;
|
||||
GpioCtrlRegs.GPBMUX1.bit.GPIO32 = 0;
|
||||
GpioCtrlRegs.GPBDIR.bit.GPIO32 = 1;
|
||||
EDIS;
|
||||
|
||||
for(;;)
|
||||
{
|
||||
// This loop will be interrupted, so the overall
|
||||
// delay between pin toggles will be longer.
|
||||
DELAY_US(DELAY);
|
||||
LoopCount++;
|
||||
GpioDataRegs.GPBTOGGLE.bit.GPIO32 = 1;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
void InitEPwmTimer()
|
||||
{
|
||||
|
||||
EALLOW;
|
||||
SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 0; // Stop all the TB clocks
|
||||
EDIS;
|
||||
|
||||
// Setup Sync
|
||||
EPwm1Regs.TBCTL.bit.SYNCOSEL = TB_SYNC_IN; // Pass through
|
||||
EPwm2Regs.TBCTL.bit.SYNCOSEL = TB_SYNC_IN; // Pass through
|
||||
EPwm3Regs.TBCTL.bit.SYNCOSEL = TB_SYNC_IN; // Pass through
|
||||
|
||||
// Allow each timer to be sync'ed
|
||||
|
||||
EPwm1Regs.TBCTL.bit.PHSEN = TB_ENABLE;
|
||||
EPwm2Regs.TBCTL.bit.PHSEN = TB_ENABLE;
|
||||
EPwm3Regs.TBCTL.bit.PHSEN = TB_ENABLE;
|
||||
|
||||
EPwm1Regs.TBPHS.half.TBPHS = 100;
|
||||
EPwm2Regs.TBPHS.half.TBPHS = 200;
|
||||
EPwm3Regs.TBPHS.half.TBPHS = 300;
|
||||
|
||||
EPwm1Regs.TBPRD = PWM1_TIMER_TBPRD;
|
||||
EPwm1Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP; // Count up
|
||||
EPwm1Regs.ETSEL.bit.INTSEL = ET_CTR_ZERO; // Select INT on Zero event
|
||||
EPwm1Regs.ETSEL.bit.INTEN = PWM1_INT_ENABLE; // Enable INT
|
||||
EPwm1Regs.ETPS.bit.INTPRD = ET_1ST; // Generate INT on 1st event
|
||||
|
||||
|
||||
EPwm2Regs.TBPRD = PWM2_TIMER_TBPRD;
|
||||
EPwm2Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP; // Count up
|
||||
EPwm2Regs.ETSEL.bit.INTSEL = ET_CTR_ZERO; // Enable INT on Zero event
|
||||
EPwm2Regs.ETSEL.bit.INTEN = PWM2_INT_ENABLE; // Enable INT
|
||||
EPwm2Regs.ETPS.bit.INTPRD = ET_2ND; // Generate INT on 2nd event
|
||||
|
||||
|
||||
EPwm3Regs.TBPRD = PWM3_TIMER_TBPRD;
|
||||
EPwm3Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP; // Count up
|
||||
EPwm3Regs.ETSEL.bit.INTSEL = ET_CTR_ZERO; // Enable INT on Zero event
|
||||
EPwm3Regs.ETSEL.bit.INTEN = PWM3_INT_ENABLE; // Enable INT
|
||||
EPwm3Regs.ETPS.bit.INTPRD = ET_3RD; // Generate INT on 3rd event
|
||||
|
||||
EALLOW;
|
||||
SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 1; // Start all the timers synced
|
||||
EDIS;
|
||||
|
||||
|
||||
}
|
||||
|
||||
// This ISR MUST be executed from RAM as it will put the Flash into Sleep
|
||||
// Interrupt routines uses in this example:
|
||||
interrupt void epwm1_timer_isr(void)
|
||||
{
|
||||
|
||||
// Put the Flash to sleep
|
||||
FlashRegs.FPWR.bit.PWR = FLASH_SLEEP;
|
||||
|
||||
EPwm1TimerIntCount++;
|
||||
|
||||
// Clear INT flag for this timer
|
||||
EPwm1Regs.ETCLR.bit.INT = 1;
|
||||
|
||||
// Acknowledge this interrupt to receive more interrupts from group 3
|
||||
PieCtrlRegs.PIEACK.all = PIEACK_GROUP3;
|
||||
}
|
||||
|
||||
// This ISR MUST be executed from RAM as it will put the Flash into Standby
|
||||
interrupt void epwm2_timer_isr(void)
|
||||
{
|
||||
EPwm2TimerIntCount++;
|
||||
|
||||
// Put the Flash into standby
|
||||
FlashRegs.FPWR.bit.PWR = FLASH_STANDBY;
|
||||
|
||||
// Clear INT flag for this timer
|
||||
EPwm2Regs.ETCLR.bit.INT = 1;
|
||||
|
||||
// Acknowledge this interrupt to receive more interrupts from group 3
|
||||
PieCtrlRegs.PIEACK.all = PIEACK_GROUP3;
|
||||
}
|
||||
|
||||
interrupt void epwm3_timer_isr(void)
|
||||
{
|
||||
Uint16 i;
|
||||
|
||||
EPwm3TimerIntCount++;
|
||||
|
||||
// Short Delay to simulate some ISR Code
|
||||
for(i = 1; i < 0x01FF; i++) {}
|
||||
|
||||
// Clear INT flag for this timer
|
||||
EPwm3Regs.ETCLR.bit.INT = 1;
|
||||
|
||||
// Acknowledge this interrupt to receive more interrupts from group 3
|
||||
PieCtrlRegs.PIEACK.all = PIEACK_GROUP3;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
//===========================================================================
|
||||
// No more.
|
||||
//===========================================================================
|
||||
Reference in New Issue
Block a user