Hi, I must explain the setup of our custom board: we have two channels of two 65L each, connected in series within the...

Hi, I must explain the setup of our custom board: we have two channels of two 65L each, connected in series within the channel. Each channel has access to a SDRAM bank which is shared for the two SHARCs. On the same bus is a host micro processor, which downloads the DSP

hi Iam trying to interface TS201 with 16 bit external memory peripheral. in TS201 Ezkit they explained for SDRAM and EPROM interfacing. ...

hi Iam trying to interface TS201 with 16 bit external memory peripheral. in TS201 Ezkit they explained for SDRAM and EPROM interfacing. for EPROM they connected from A0-A18 address lines and D0-D7 data bus directly. and for SDRAM they configured A1 through A31 of TS201 and D0-D31 and D32-D63 data bus connected to SDRAM. so for 16bit data bus(D0-D15) and 12bit address(A0-A11) c...

Hi Al, can you give us an example of how the SDRAM is accessed via the FPGA, software requirements, throughput, etc. I have...

Hi Al, can you give us an example of how the SDRAM is accessed via the FPGA, software requirements, throughput, etc. I have written applications with PM and DM overlays, I guess this will be the primary use of SDRAM?

Hi, I am trying to allocate some memory using the C malloc( ) function. It works fine but it allocates it on the internal...

Hi, I am trying to allocate some memory using the C malloc( ) function. It works fine but it allocates it on the internal SRAM rather than on the SDRAM. Do you know how i could do dynamic memory allocation on the SDRAM ? Actually, is there a way to have &qu

Friends, I have to initialize a section in SDRAM connected to a 65L from a host processor. It is not possible to do so...

Friends, I have to initialize a section in SDRAM connected to a 65L from a host processor. It is not possible to do so directly. One first has to download a block of data into 65L internal memory (also via DMA), and afterwards setup an external port DMA which copi

Hi I am working on 21065L processor. I wish to set the refresh counter value for the SDRAM device. I come across with two...

Hi I am working on 21065L processor. I wish to set the refresh counter value for the SDRAM device. I come across with two equations for calculating this value in two different literature - one is users manual and the other is in EE127.pdf. I am little bit confused that which on

Hi all, can anyone suggest me an easy way to implement the below code with lower MIPS??? i am using analog devices processor. block size is...

Hi all, can anyone suggest me an easy way to implement the below code with lower MIPS??? i am using analog devices processor. block size is 64(assume) i5 = 0x300000;(points to SDRAM) Lcntr=10000*8,do Initial until lce; Initial :dm(i5,m6)=m14; MIPS = (cycle count*fs)/(block size * 1000000)

Hello everybody, I have set up two Sharc 21065L in a multiprocessor enviroment. If they get their code from the external SDRAM,...

Hello everybody, I have set up two Sharc 21065L in a multiprocessor enviroment. If they get their code from the external SDRAM, there is a problem with the switching of bus mastership. One DSP is retaining mastership for over 15 microseconds. But I set up the processors t

Hello, guys. Do you know if 2M x 32 SDRAM parts like Micron's MT48LC2M32B2TG or ISSI's IS42S32200 would work smoothly and...

Hello, guys. Do you know if 2M x 32 SDRAM parts like Micron's MT48LC2M32B2TG or ISSI's IS42S32200 would work smoothly and flawlessly with the 21065L clocked at 60MHz? When I say "work smoothly and flawlessly" I mean without special hardware or software tricks, like t

-----Original Message----- From: Hemant Sadhwani Sent: Tuesday, February 22, 2005 8:49 PM To: 'Mike Rosing' Subject:...

-----Original Message----- From: Hemant Sadhwani Sent: Tuesday, February 22, 2005 8:49 PM To: 'Mike Rosing' Subject: RE: [adsp] Boot form Flash to SDRAM with VDK Hello Mike, Yes you were right in your assumption as it was Blackfin. At present

Dear all, Would you please inform me how to load the data file to the SDRAM? I don't know why following statements do not work....

Dear all, Would you please inform me how to load the data file to the SDRAM? I don't know why following statements do not work. static section ("SDRAM_bank0") fract16 coefs[NUM_COEF] = { #include "coefs.dat"; }; Any informati

I'm working with a dual 65L setup with shared SDRAM. Only one of the processors is accessing the SDRAM. I find that parallel...

I'm working with a dual 65L setup with shared SDRAM. Only one of the processors is accessing the SDRAM. I find that parallel internal / external memory reads results in incorrect data being read from the external memroy. Here is an example. This loop is for windowing FF

[Please reply to the list, not directly to me.] ------------ Forwarded Message ------------ Date: Monday, January 05, 2004 1:13...

[Please reply to the list, not directly to me.] ------------ Forwarded Message ------------ Date: Monday, January 05, 2004 1:13 PM +0000 From: linchongliang <> To: Kenneth Porter <> Subject: Re: BF532 memdma error and sdram access problem Thanks.

Hi, I am using BF561 for my video application. I've used SDRAM to store the input frame,and used MDMA to transfer the data from SDRAM to L1...

Hi, I am using BF561 for my video application. I've used SDRAM to store the input frame,and used MDMA to transfer the data from SDRAM to L1 memory. I can transfer only 5 lines at a time, But my application needs the entire frame at one strech. where can i find the driver files to do the frame processing regards, manimekalai

Hi steve, If i want to update the pointers which are stored at External memory (SDRAM) can i update directly or i need to configure the...

Hi steve, If i want to update the pointers which are stored at External memory (SDRAM) can i update directly or i need to configure the wait register. Actually in my program when ever i am updating the variables which are stored at the external memory(SDRAM) its not not assigning the pointers correctly. as i assign i can see in expression window when i step one

Hi, I'm struggling to boot from FLASH and load the program code into SDRAM and data code into L1 data RAM and configure...

Hi, I'm struggling to boot from FLASH and load the program code into SDRAM and data code into L1 data RAM and configure L1 instruction memory as a cache. I do have an example which is go it from the Analog Devices site i.e. "application Code with Application

Hi! I have doubt about the SDC....... When we are configuring the SDRAM in video applications......they are configuring the registers with...

Hi! I have doubt about the SDC....... When we are configuring the SDRAM in video applications......they are configuring the registers with values(Iam attaching those values) for the optimum performance of SDRAM................... here i din't know what is the "optimum performance" and the SCLK is changing to 118.8 122 and 133Mhz based on values.... As far as i know to change the SCLK f...

Hi, For a project I'm working on, I need SDRAM interfacing to the ADSP-21065L (my very first project involving design...

Hi, For a project I'm working on, I need SDRAM interfacing to the ADSP-21065L (my very first project involving design with SDRAM parts). One suitable part is the MT48LC2M32B2 from Micron. Has anyone already used this part or any other very similar for interfacing

Hello , I want to connect the External SDRAM of size 8MB to the ADSP 2185 through the BDMA. Can anybody tell me how to modifed the LDF...

Hello , I want to connect the External SDRAM of size 8MB to the ADSP 2185 through the BDMA. Can anybody tell me how to modifed the LDF file or If you have the modified LDF file please forward to me or any related information how to connect the SDRAM and how to modified the LDF file plz forward to me Chandrakant Wavelet Group Pune

Hi friends! i'm having a relatiively trivial problem of writing a long data to sdram of a ts101 rev1.3 board using DMA or otherwise. If...

Hi friends! i'm having a relatiively trivial problem of writing a long data to sdram of a ts101 rev1.3 board using DMA or otherwise. If data length is equal to 512 words(page boundary), there is no problem, but for larger data, it is not happening properly... data gets written but not correctely... specifically, write to the last page gets repeated on the previous pages also.i ha