DSP

DAT module in CSL 3.0 (EDMA 3)
Hi, I have seen that the DAT module API has changed in the new CSL (v3.0). As far as I saw, it's not possible to have more than 1 transfer at a time. When you open the module with DAT_open you have to define on which QDMA channel the transfer will be triggered, and which tcc you get. There's no more DAT_CHAANY as ... 26 Sep 2006 04:18

Code COmposer studio3.2 version: Build Error
Hi I am facing one Issue with CCS 3.2version . It is giving the message as below. -------------------------- Test.pjt - Debug -------------------------- Build error: cannot run vlnk. Build Complete, 1 Errors, 0 Warnings, 0 Remarks. I am not getting what's the error or where I am going wrong. But it... 26 Sep 2006 18:35

EMIF Speed
Hi all, I'm working with the C64xx DSP from TI and trying to interface a blockram within the attached FPGA by using the EMIF. It is a 16 Bit interface. The FPGA is attched to CE1 and CE2 Space. The emif is configured as a synchronous 16 Bit interface with ECLKOUT2 100MHz. I meassured the max. datathroughput as... 27 Sep 2006 05:04

Different Definitions for Inverse Fourier Transform
It's not completely standard, but I've usually seen a factor of 1/(2*\pi) in front of the integral for the inverse Fourier transform. I believe the theore says that this factor must be somewhere in the round-trip journey from forward transform to revers. It could be 1/sqrt(2*\pi) in front of both, or whatever. [... 28 Sep 2006 22:01

TMS320DM642 startup problem
Hi experts, we have an own video board based on a DM642 with flash, sdram, FPGA etc. Our application firmware works fine in the CCS 3.1 with XDS510USB emulator. We use DSP/BIOS. For standalone operation we wrote the first bootloader, based on the TI app notes and a second one for the more expensive loading of t... 26 Sep 2006 10:07

DSP book!
Hi guys, Does exist any DSP book that is moderate on both math and dsp concept? if so please let me know. Thanks, A ... 4 Oct 2006 09:59

Walsh codes in CDMA
hey....I would like to know something about length 64 Walsh codes that are applied in CDMA 2000 1xEVDO....plz help....what is the difference between Walsh codes and PN sequences. Thanks TD ... 11 Oct 2006 00:38

Problem with the communication between DSP and JTAG
Hello,everyone! My question is : When I click CCS, I can not enter into it.At the same time,I checked 1. the signal of TDI only changed once,then it kept high. 2. the signal of TDO did not change at all. 3. TRST changed from low to high, then kept high. 4. RESET had no changes, but kept high all the time. I try ... 27 Sep 2006 15:43

Ultrasonic difference tone hearing
Hi, Is it true that you can hear a 2 kHz tone if you hear a 21 kHz tone + a 23 kHz tone? I've been arguing with someone about this. He says that you can, but that goes against what I know about the effect in the frequency domain of adding signals together in the time domain, not only that but I tried playing a 1... 5 Oct 2006 06:25

scaling coefficients for c
Hi, I understand the requirement of scaling coefficients for fixed point microcontrollers. However, I cannot seem to get past a simple issue... How do I code a fraction in binary form for use in c code or asm language? for example, consider the fraction in base 10: dec == 0.58642 and the same fraction in binar... 21 Sep 2006 23:05