Texas Instruments Inc., May 2002
Signal Generator Library
Module user’s Guide
C28x Foundation Software
Texas Instruments Inc., May 2002
Texas Instruments Inc., May 2002
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Texas Instruments Inc., May 2002
Trademarks
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Acronyms
xDAIS : eXpress DSP Algorithm Interface Standard
IALG : Algorithm interface defines a framework independent interface for the creation of
algorithm instance objects
STB : Software Test Bench
QMATH: Fixed Point Mathematical computation
CcA : C-Callable Assembly
FIR : Finite Impulse Response Filter
IIR : Infinite Impulse Response Filter
FFT : Fast Fourier Transform
Texas Instruments Inc., May 2002
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1. Introduction……..............................................................................................................1
2. SIN Generator……...........................................................................................................1
2.1. Standard THD Sin generator .......................................................................................1
2.2. Low THD sin generator ...............................................................................................1
2.3. High precision sin generator ........................................................................................1
3. Signal Generator Modules……………..............................................................................5
3.1. SGENT_1: Single Channel SIN Generator (Table look-up)…….....................................5
3.2. SGENT_2: Dual Channel SIN Generator (Table look -up)…….....................................11
3.3. SGENT_3: 3φ SIN Generator (Table look-up)……......................................................17
3.4. SGENT_3D: Dual 3φ SIN Generator (Table look-up)…… ...........................................23
3.5. SGENTI_1: Single Channel SIN Generator (Table look-up and Linear Interpolation)… .29
3.6. SGENTI_2: Dual Channel SIN Generator (Table look-up and Linear Interpolation)……35
3.7. SGENTI_3: 3φ SIN Generator (Table look-up and Linear interpolation)…… .................41
3.8. SGENTI_3D: Dual 3φ SIN Generator (Table look -up and Linear Interpolation)…….......47
3.9. SGENHP_1: High Precision SIN Generator (Table look-up and Linear Interpolation)… 53
3.10. SGENHP_2: High Precision SIN Generator (Table look-up and Linear Interpolation) ..59
3.11. RMPGEN: Ramp Generator…… .............................................................................65
3.12. TZDLGEN: Trapezoidal generator ...........................................................................71
3.13. PROFILE: Profile generator… .................................................................................77
