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author | ymherklotz <ymherklotz@gmail.com> | 2018-02-27 10:27:11 +0000 |
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committer | ymherklotz <ymherklotz@gmail.com> | 2018-02-27 10:27:11 +0000 |
commit | 15f14bfcf580dcf123178e254246e7993d077e63 (patch) | |
tree | ae0e027aae260e176e602788077e83be1b175b5f /lab5/RTDSP | |
parent | 16fd81be34fef52a4805b715b10218747c497420 (diff) | |
download | NoiseSilencer-15f14bfcf580dcf123178e254246e7993d077e63.tar.gz NoiseSilencer-15f14bfcf580dcf123178e254246e7993d077e63.zip |
Fixed proj lab5ex1
Diffstat (limited to 'lab5/RTDSP')
-rw-r--r-- | lab5/RTDSP/.launches/RTDSP.launch | 6 | ||||
-rw-r--r-- | lab5/RTDSP/intio.c | 38 |
2 files changed, 13 insertions, 31 deletions
diff --git a/lab5/RTDSP/.launches/RTDSP.launch b/lab5/RTDSP/.launches/RTDSP.launch index 1e2e15a..169264f 100644 --- a/lab5/RTDSP/.launches/RTDSP.launch +++ b/lab5/RTDSP/.launches/RTDSP.launch @@ -12,8 +12,8 @@ <stringAttribute key="com.ti.ccstudio.debug.core.DISPLAY_NAME_FORMAT" value="RTDSP [Debug] - {0}"/> <stringAttribute key="CCEDebugOptions.TARGET_CONFIGURATION_OPTION" value="full"/> <stringAttribute key="org.eclipse.cdt.launch.MEMORY_BLOCKS" value="<?xml version="1.0" encoding="UTF-8"?> <memoryBlockExpressionList/> "/> -<stringAttribute key="com.ti.ccstudio.debug.core.MRU_PROGRAM_NAME" value="C:\github\RTDSP\lab4\RTDSP\Debug\RTDSP.out"/> -<stringAttribute key="com.ti.ccstudio.debug.core.MRU_MODULES" value="<?xml version="1.0" encoding="UTF-8"?> <modules> <module name="C:\GIT\RTDSP\lab3\RTDSP\Debug\RTDSP.out" time="Fri Jan 19 14:07:28 GMT 2018" time_long="1516370848357"/> <module name="C:\Github\RTDSP\lab3\RTDSP\Debug\RTDSP.out" time="Tue Jan 23 11:15:11 GMT 2018" time_long="1516706111426"/> <module name="C:\GIT\RTDSP\lab4\RTDSP\Debug\RTDSP.out" time="Thu Feb 01 11:44:21 GMT 2018" time_long="1517485461898"/> <module name="C:\github\RTDSP\lab4\RTDSP\Debug\RTDSP.out" time="Thu Feb 15 13:55:55 GMT 2018" time_long="1518702955359"/> </modules> "/> +<stringAttribute key="com.ti.ccstudio.debug.core.MRU_PROGRAM_NAME" value="C:\Github\RTDSP\lab5\RTDSP\Debug\RTDSP.out"/> +<stringAttribute key="com.ti.ccstudio.debug.core.MRU_MODULES" value="<?xml version="1.0" encoding="UTF-8"?> <modules> <module name="C:\GIT\RTDSP\lab3\RTDSP\Debug\RTDSP.out" time="Fri Jan 19 14:07:28 GMT 2018" time_long="1516370848357"/> <module name="C:\Github\RTDSP\lab3\RTDSP\Debug\RTDSP.out" time="Tue Jan 23 11:15:11 GMT 2018" time_long="1516706111426"/> <module name="C:\GIT\RTDSP\lab4\RTDSP\Debug\RTDSP.out" time="Thu Feb 01 11:44:21 GMT 2018" time_long="1517485461898"/> <module name="C:\github\RTDSP\lab4\RTDSP\Debug\RTDSP.out" time="Thu Feb 15 13:55:55 GMT 2018" time_long="1518702955359"/> <module name="C:\Github\RTDSP\lab5\RTDSP\Debug\RTDSP.out" time="Tue Feb 27 10:22:44 GMT 2018" time_long="1519726964340"/> </modules> "/> <stringAttribute key="CCEDebugOptions.CPU_NAME" value="Spectrum Digital DSK-EVM-eZdsp onboard USB Emulator_0/TMS320C671X"/> <stringAttribute key="org.eclipse.cdt.launch.PROJECT_ATTR" value="RTDSP"/> <stringAttribute key="org.eclipse.cdt.launch.GLOBAL_VARIABLES" value="<?xml version="1.0" encoding="UTF-8"?> <globalVariableList/> "/> @@ -21,6 +21,6 @@ <stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="Debug/RTDSP.out"/> <stringAttribute key="CCEDebugOptions.CPU_ISA" value="TMS320C671X"/> <stringAttribute key="com.ti.ccstudio.debug.core.BUILD_CONFIGURATION" value="Debug"/> -<stringAttribute key="CCEDebugOptions.TARGET_CONFIGURATION_FILE" value="C:\github\RTDSP\lab4\RTDSP\NewTargetConfiguration.ccxml"/> +<stringAttribute key="CCEDebugOptions.TARGET_CONFIGURATION_FILE" value="C:\Github\RTDSP\lab5\RTDSP\NewTargetConfiguration.ccxml"/> <stringAttribute key="org.eclipse.debug.core.source_locator_id" value="com.ti.ccstudio.debug.core.sourceLocator"/> </launchConfiguration> diff --git a/lab5/RTDSP/intio.c b/lab5/RTDSP/intio.c index 124fc03..219ca56 100644 --- a/lab5/RTDSP/intio.c +++ b/lab5/RTDSP/intio.c @@ -1,16 +1,11 @@ /************************************************************************************* DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING IMPERIAL COLLEGE LONDON - EE 3.19: Real Time Digital Signal Processing Dr Paul Mitcheson and Daniel Harvey - LAB 3: Interrupt I/O - ********* I N T I O. C ********** - Demonstrates inputing and outputing data from the DSK's audio port using interrupts. - ************************************************************************************* Updated for use on 6713 DSK by Danny Harvey: May-Aug 2006 Updated for CCS V4 Sept 10 @@ -36,16 +31,16 @@ // Some functions to help with writing/reading the audio ports when using interrupts. #include <helper_functions_ISR.h> -#include "Matlab/filter_coeff.txt" // Some functions to help with configuring hardware #include "helper_functions_polling.h" // PI defined here for use in your code #define PI 3.141592653589793 -#define N 249 -double buffer[N]= {0}; -unsigned ptr = N-1; +short x[] = {0, 0}; +double y[] = {0.0, 0.0}; +double a[] = {1, -1.875/2.125}; +double b[] = {0.125/2.125, 0.125/2.125}; /******************************* Global declarations ********************************/ @@ -126,23 +121,10 @@ void init_HWI() /******************** INTERRUPT SERVICE ROUTINE ***********************/ void ISR_AIC() { - buffer[ptr] = (double) mono_read_16Bit(); - mono_write_16Bit((short)circ_fir()); - if (ptr == 0) - ptr = N; - ptr--; -} - -// Perform linear convolution -short circ_fir() -{ - double y = 0; - int i = 0; - for(; i+ptr < N; i++) { - y += buffer[i+ptr] * b[N-i-1]; - } - for(; i < N; i++) { - y += buffer[i+ptr-N] * b[N-i-1]; - } - return y; + x[1] = x[0]; + x[0] = mono_read_16Bit(); + y[1] = y[0]; + y[0] = b[0] * x[0] + b[1] * x[1] - a[1] * y[1]; + + mono_write_16Bit((short)y[0]); } |