英飞凌单片机例程tc1767_taskingv33r2_dcm_ltc

Click on the + to the right of „GPTA_LTC_DCM‟ to expand the project
Create by Dave
Main.c Main.h Gpta0.c Gpta0.h Io.c Io.h
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Exercise GPTA_LTC_DCM Tasking Viper : Setting Target Board
Create Project name „GPTA_LTC_DCM ´ Select ‘Use default location’ Select ‘Empty project’ Click ‘Next’
Same name as DAvE directory
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Exercise GPTA_LTC_DCM Tasking Viper:Create New Project(cont.)
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Exercise GPTA_LTC_DCM Tasking Viper : Reflash Project
Refresh files in the project Right click on „GPTA_LTC_DCM‟ in the navigator
Select „Refresh‟ from the pull down menu
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Exercise GPTA_LTC_DCM Tasking Viper : Open a workspace
Start TASKING VX-toolset for tricore Click on Open Project Work Space Filename: browse to “d:\hot\tc1767” Click „OK‟
Tricore Project Settings Click “AUDO Future Family” and select “TC1767” Enable “C startup code”,”Linker script file” and “synchronizaqtion file”
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Compiler Settings: Tasking Enable “Use Infineon DAvE sfr Header”
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Exercise GPTA_LTC_DCM DAvE Configurations(cont.)
Project Settings - opens automatically General:
if the included function is a macro it is included in the „.h‟ file if the included function is a function it is included in the „.c‟ file
File main.c,main.h,gpta0.c,gpta0.h,io.c and io.h will be generated
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
GPTA Clock Module clock:
Enable GPTA Module Select normal divider mode Set the required module clock to 20MHz
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
Ports Ports / Functions:
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
LTC0 as a timer LTC1 as a capture mode (rising edge) LTC2 as a capture mode (falling edge)
Let’s get started now!
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Exercise GPTA_LTC_DCM Block diagram
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
GPTA Clock Timer Clock Control:
Enable GPTA0 Timer clock.
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
Software
P5.0
TC1767
Clock 4
Timer
Reset timer
P0.0
Capture(Rising) Capture(Falling)
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Exercise GPTA_LTC_DCM DAvE Configurations
Start DAvE for TC1767.
Create New Project Click on File New Select „Tasking VX-toolset for Tricore C/C++ Project‟
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Exercise GPTA_LTC_DCM Tasking Viper: Create New Project(cont.)
General Purpose Timer Array ExercLTC_DCM Objective
Using 3 Local Timer Cells (LTC), perform a duty cycle measurement by configuring
Set Target Board Configuration
Click on
Select „Infineon Easy Kit TC1767‟ Select „DAS over on-board USB wiggler‟ Select „Single Chip‟ and Select „TC1767‟ and Disable “Update Startup Code”
Save (File Save) this DAvE file in : d:\hot\tc1767\gpta_ltc_dcm\gpta_ltc_dcm.dav Let DAvE now generate the code for you Go to File Generate Code or click: DAvE opens a new window with the Project Documentation file. On the left hand side a browser window shows the generated files. You can take a look at the generated code or just find out in which file DAvE put the included functions. In general:
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
GPTA0 Local Timer Cell /LTC0/Data Input:
Internal input: Select Clock 4.
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Click on the GPTA0 module Select window: Clock Generation Click CDU button
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
GPTA0 Clock Generation / CDU / Clock Bus 5-4:
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
GPTA0 Local Timer Cell /LTC0/LTC0:
Enable LTC0 after initialization. Mode selection: Timer with reset from adjacent LTC with higher order. Connect the input line to LTC0. Enable rising edge of selected input signal
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
GPTA0 Local Timer Cell /LTC1/LTC1:
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Exercise GPTA_LTC_DCM DAvE Configurations (cont.)
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Exercise GPTA_LTC_DCM Tasking Viper : Create New Project
Click on Workbench (if not already there…)