malloc

Started by Simone Winkler in comp.dsp15 years ago 28 replies

Hello, I'm developping code for a C6713 DSP (actually it's the D.SignT-module with the C6713 on it). I'm trying to use malloc() but it...

Hello, I'm developping code for a C6713 DSP (actually it's the D.SignT-module with the C6713 on it). I'm trying to use malloc() but it doesn't seem to work. In the beginning I always received a null pointer. After a long while of searching my mistake I detected the section in the DSP/BIOS configuration for malloc(). I pointed it to SBSRAM and to SDRAM but both solutions didnt work - in...


audio loop with c6713

Started by laurasscurtu in comp.dsp5 years ago

Hello, I am trying to do a simple audio loop (playpack loop) using only the McBSP with TI C6713. I must mention, I am new to the DSP world and...

Hello, I am trying to do a simple audio loop (playpack loop) using only the McBSP with TI C6713. I must mention, I am new to the DSP world and I would very much appreciate any help. I am working with DSP/BIOS and with CSL functions. So this is what I have done so far: I have programed 2 hardware interrupt functions, one for receive and one for transmit. I have connected my laptop to t...


ask Help for C6713 DSPLIB

Started by leewave in comp.dsp9 years ago

Hi all, I am programming with dsplibC67x.lib on C6713 DSK. As everyone knows, there are lots of bugs and special requirements in...

Hi all, I am programming with dsplibC67x.lib on C6713 DSK. As everyone knows, there are lots of bugs and special requirements in dsplibC67x v2.0. For example, function DSPF_sp_mat_mul(float *x,int r1,int c1,float *y,int c2,float *r) is used for matrix multiplication, but it needs r1, c1, c2 > 1. Unfortunately, I have to do a multiplication (Mx1)x(1xN). What can I do to handle this? (I know


TI C6713 DSP

Started by Lauren in comp.dsp16 years ago 2 replies

I have a question about the TI C6713 and C6713B DSPs. TI states that the 225 mHz delivers 1350 Mflops and the 300 mHZ delivers 1800 Mflops. Most...

I have a question about the TI C6713 and C6713B DSPs. TI states that the 225 mHz delivers 1350 Mflops and the 300 mHZ delivers 1800 Mflops. Most places I have looked say "up to" this amount of mflops, but is there any accepted/tested benchmark for these DSPs that gives a more consistent result? Also what is the diffence in power consumption between the 225 mhz and the 300 mhz ? Thanks for you...


C6713

Started by Haguemonster in comp.dsp11 years ago 1 reply

Hi there, I personally would recommend the C6713 as I used it to learn developing code on a TI platform. There's a good book on it by Rulph...

Hi there, I personally would recommend the C6713 as I used it to learn developing code on a TI platform. There's a good book on it by Rulph Chassaing : http://www.dsprelated.com/books/238.php The book has some good introductory projects (filtering, decimation etc...) and also has a chapter dedicated to some more involved projects which can test the knowledge you've gained in the previous ch...


Problem with DSP C6713

Started by in comp.dsp13 years ago

Hi, I hope, this is a right newsgroup for my question. I have a DSK with C6713 DSP. I'm sending data to McBSP by EDMA. Data is testing...

Hi, I hope, this is a right newsgroup for my question. I have a DSK with C6713 DSP. I'm sending data to McBSP by EDMA. Data is testing sequence, Uint8 Buffer[256]. Buffer[0] to [255] = 0xAA (10101010). Peripherial frequency is 100MHz. All is configured by DSP/BIOS Config. When I set McBSP Clock freq. Divider to 4 (one bit = 40ns) everything is OK. On DX pin is 101010101...


real time FFT on c6713 DSK

Started by olubern in comp.dsp14 years ago 3 replies

I'm trying to do a 2048 pt real FFT using fft6713.c as my reference code. When I tested this code with a CD music, (fs changed to 44.1KHz) I...

I'm trying to do a 2048 pt real FFT using fft6713.c as my reference code. When I tested this code with a CD music, (fs changed to 44.1KHz) I realize some of the samples from the ADC were overwritten while the FFT is being done (Obviously I can't do the FFT process in one sample time) Is there a way to store samples from the ADC and do the FFT prcoessing simultaneouly on the C6713 DSK. The mai...


using the edma channel of c6713 dsp

Started by terzakis in comp.dsp13 years ago 2 replies

Hi all. I am trying to use the edma channel of my c6713 dsk, in order to take 8-bit data, from a daughter card (address 0xA0000000) and store...

Hi all. I am trying to use the edma channel of my c6713 dsk, in order to take 8-bit data, from a daughter card (address 0xA0000000) and store them in the sdarm (address 0x80000000). Can anybody tells me what i have to do? Which functions i have to use? I have written a code based on the data sheets but unfortunately it doesn't work at all. I know that it is a simple problem but i am new in...


Looking for expert with lots of experience on TI c6713

Started by John Smith in comp.dsp11 years ago

We are looking for expert with lots of experience on TI c6713. (experience with other DSPs is not enough for us.) Please sent your CV and cover...

We are looking for expert with lots of experience on TI c6713. (experience with other DSPs is not enough for us.) Please sent your CV and cover letter to StratWiz_AT_gmail_DOT_com (remove all underlines and replace AT and DOT) Thanks JS


TI C67xx pipeline question

Started by Rene Kellenbach in comp.dsp16 years ago 2 replies

I am trying to optimize the inner loop of a filter algoritmn written in C/C++, using Code Composer 2.21 and a TI C6713 target system. After...

I am trying to optimize the inner loop of a filter algoritmn written in C/C++, using Code Composer 2.21 and a TI C6713 target system. After trying several optimizing techniques, the compiler generates to following loop kernel - see below. This code seems pretty good to me: the compiler generates 2 ADD's and 2 MPY's for almost every block of parallel instructions - this is the best a C6713 ...


C6713 Stack allocation

Started by ratemonotonic in comp.dsp11 years ago 1 reply

I am using C6713 DSK . My question is can the stack be allocated in the external RAM? I am getting some odd behaviour (a codec receive ISR is...

I am using C6713 DSK . My question is can the stack be allocated in the external RAM? I am getting some odd behaviour (a codec receive ISR is sampling the signal at a slower rate) when I do, which disappears when I allocate it in the internal RAM. I just want to varify if ppl have allocated stack in the external RAM with out problem so I can rule it out as a possible cause. BR Rate ...


C6713 DSK problem

Started by karthik_n in comp.dsp14 years ago 1 reply

Hello everyone, I am working with a Spectrum Digital C6713 DSK, and I have a seemingly bizarre problem. I have a program that does some write...

Hello everyone, I am working with a Spectrum Digital C6713 DSK, and I have a seemingly bizarre problem. I have a program that does some write cycles to the CE2 space. I run the program in two different ways. 1. I load the .out file through CCS, and run it from internal memory. 2. I generate a hex file, burn the flash, and bootload from flash. The program behaves differently in the two case...


problem in setting EDMA of C6713 DSK

Started by PKGupta in comp.dsp14 years ago

Dear Friends, I am trying to transfer the data using EDMA from AED daughter card using int4.When instruction EDMA_RSET(EER,0x00000010) execute...

Dear Friends, I am trying to transfer the data using EDMA from AED daughter card using int4.When instruction EDMA_RSET(EER,0x00000010) execute on the C6713 DSK the EER sets to 0x00000010 that i desired to enable EDMA Ch4 but also set ECR & CCER to 0x00000010 that is not desired because when the ECR is 0x00000010 it will alwayes keep the ER register 0x00000000 and the interrupt will never start ...


differents between CLKR and CLKS-pins @ C6713-DSK ?

Started by olaf636 in comp.dsp16 years ago 1 reply

i try to make a data transfer via the McBSP0 on the C6713 DSK. first, i have connected as follows: CLKX0 -> CLKR0 FSX0 -> FSR0 DX0 -> ...

i try to make a data transfer via the McBSP0 on the C6713 DSK. first, i have connected as follows: CLKX0 -> CLKR0 FSX0 -> FSR0 DX0 -> DR0 but without success.... what is the meaning of the CLKR-pin on the peripheral connector ? i have the choice of internal and external clock. the internal is the sample rate generator and the external is via the CLKS-pin - but when can i use the CLKR


View output from TI DSP c6713 to oscilloscope

Started by third_person in comp.dsp10 years ago 5 replies

Hello I am using TI DSP c6713 to implement various comm algos, at my univ. and want to view the output on oscilloscope. Can any one guide...

Hello I am using TI DSP c6713 to implement various comm algos, at my univ. and want to view the output on oscilloscope. Can any one guide me? Details: I am using Simulink to design a simple BPSK modulator and am using the link to Code Composer Studio to build the model as a CSS project. Afterwards I am running it. I now want to verify if the output is indeed BPSK modulated symbols by ...


problems with TI's digit reversal, radix 4 FFT, C6713 DSK

Started by ece_student in comp.dsp16 years ago 1 reply

Hello All, I'm writing a radix 4 FFT program for the c6713 DSK that calls TI's function, cfftr4_dif. I believe that the FFT itself works;...

Hello All, I'm writing a radix 4 FFT program for the c6713 DSK that calls TI's function, cfftr4_dif. I believe that the FFT itself works; however, I'm having trouble with the TI digit reversal functions, digitrev_index and bitrev. I have greatly simplified my code, posted below, to just test these functions. I notice that after the program has run, x has most of its original values (intege...


C6713 Timer problem

Started by Simone Winkler in comp.dsp15 years ago 8 replies

Hello, I am using the C6713 DSP from TI. I'm trying to implement a timer. I use Timer1 by manually programming it (not inside the DSP-BIOS,...

Hello, I am using the C6713 DSP from TI. I'm trying to implement a timer. I use Timer1 by manually programming it (not inside the DSP-BIOS, but with a timer handle). The only thing I insert into the DSP-BIOS is the Timer function (At HWI 15, I insert the function that the timer shall enter after it finishes to count). I enabled to use the dispatcher with "self" for the interrupt mask. ...


DSP and applications with C6713 and C6416 DSK

Started by rich_158 in comp.dsp12 years ago

hi i recently bought the book 'DSP and applications with C6713 and C6416 DSK' by chassaing. I had to buy a used one as it was much cheaper but...

hi i recently bought the book 'DSP and applications with C6713 and C6416 DSK' by chassaing. I had to buy a used one as it was much cheaper but the cd is defective that contains the source code. I cannot afford to buy a new book does anyone have the source code from the book? my email address is eecoding@hotmail.com hope someone can help me Richard


Audio sampling in C6713 SDK

Started by haiyan in comp.dsp13 years ago

Dear all, I'm sampling the audio signal through mic jack on C6713 board. The code is based on the example project "dsk_app". The audio can...

Dear all, I'm sampling the audio signal through mic jack on C6713 board. The code is based on the example project "dsk_app". The audio can be played back from the speaker jack. However, when I tranform the signal in the buffer to double precision values, it seemed that (later) half of the data in the buffer has been truncked (all zeored). Is there any one can give me some advice to solve this...


Free 1-day hands-on Workshop at ICASSP

Started by Anonymous in comp.dsp15 years ago 1 reply

I will be teaching on March 19 a 1-day hands-on workshop on the C6713/C6416 DSK at ICASSP '05 in Philadelphia. There is NO Fee for the workshop...

I will be teaching on March 19 a 1-day hands-on workshop on the C6713/C6416 DSK at ICASSP '05 in Philadelphia. There is NO Fee for the workshop with each participant getting a free DSK. Materials for the workshop are based on my new book: "Digital Signal Processing and Applications with the C6713 and C6416 DSK". Visit TI's web site for more info. Rulph Chassaing