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Blackfin SDRAM

Started by in Analog Devices DSPs20 years ago 1 reply

How can a make faster access to the blackfin SDRAM? I have a program that is written in C, that is having some timing problems because of the...

How can a make faster access to the blackfin SDRAM? I have a program that is written in C, that is having some timing problems because of the external memory accesses. How can I solve this ? --=20 Guilherme Loch G=F3es "Always do sober what you said you'd do drunk. That will teach you to keep your mouth shut." -Ernest Hemingway =20


writing to flash EZKIT 537

Started by eran...@phnx.co.il in Analog Devices DSPs20 years ago 1 reply

Hi Everybody why cant I write to this flash address 0x2000000 but the program does succeed to write to the sdram address 0x0203000 on the...

Hi Everybody why cant I write to this flash address 0x2000000 but the program does succeed to write to the sdram address 0x0203000 on the EZKIT 537 thanks eran see program : #include .section program; .global _main; _main:/*{*/ r2 = 2(z); r3 = 3(z); r1 = r2 + r3; p0.h = 0x0203; // sdram // p0.h = 0x2000; flash p0.l = 0x0000; //w[p0] = r1.l; [p0] = r1;


writing to sdram in a ts101 rev 1.3 board

Started by aman...@yahoo.com in Analog Devices DSPs20 years ago 2 replies

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


problems when loading SDRAM.

Started by tesi_retina in Analog Devices DSPs21 years ago 3 replies

hello, i am trying to load a matrix into the SDRAM of a Tiger Sharc TS101, using memory -> fill, but it loads completely wrong values, ...

hello, i am trying to load a matrix into the SDRAM of a Tiger Sharc TS101, using memory -> fill, but it loads completely wrong values, without any apparent sense. does anybody know if there is any option to set to get it right? besides, if i load the matrix when simulating, everything works fine... thanx everybody... daniele


BDMA

Started by Chandrakant Deoda in Analog Devices DSPs21 years ago 1 reply

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


transfer the data from system hard disk to SDRAM via JTAG emulator

Started by kg_m...@rediffmail.com in Analog Devices DSPs21 years ago

hi friends, how to transfer the data from system hard disk to ADSP-BF533 processor's SDRAM using JTAG emulator? regards, ...

hi friends, how to transfer the data from system hard disk to ADSP-BF533 processor's SDRAM using JTAG emulator? regards, meiyazhagan


how should i read/write external memory

Started by harsha sb sb in Analog Devices DSPs21 years ago 4 replies

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


FW: Boot form Flash to SDRAM with VDK

Started by Hemant Sadhwani in Analog Devices DSPs21 years ago 1 reply

-----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


Boot form Flash to SDRAM with VDK

Started by Hemant Sadhwani in Analog Devices DSPs21 years ago 1 reply

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


Dynamic allocation of memory

Started by Laurent in Analog Devices DSPs22 years ago 1 reply

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


ADSP-21065L to Micron's MT48LC2M32B2

Started by in Analog Devices DSPs22 years ago

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


Sharc 21065L mulitprocessor and SDRAM

Started by Anonymous in Analog Devices DSPs27 years ago 2 replies

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


About Sdram Module

Started by JackieChen in Analog Devices DSPs26 years ago 1 reply

Hello all, Did anyone use the sdram module as external memory for 21065L ? I tried it but in vain ,and I would like to know...

Hello all, Did anyone use the sdram module as external memory for 21065L ? I tried it but in vain ,and I would like to know if some of you have the experience of using the module or some advise for me . Any comment will be welcome !! -----------------------


Re: adsp digest

Started by Anonymous in Analog Devices DSPs26 years ago

I am developing a system that uses the SDRAM controler with a MICRON 2Meg x 32 SDRAM. I had thought there were issues until I...

I am developing a system that uses the SDRAM controler with a MICRON 2Meg x 32 SDRAM. I had thought there were issues until I found them elsewhere... Points to look out for include your settings of the WAIT register, the SDRDIV register and the IOCTL register.


AW: about SDRAM interface

Started by Andor Bariska in Analog Devices DSPs26 years ago

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


21065L SDRAM refresh rate counter

Started by ajith_pc in Analog Devices DSPs23 years ago

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


sdram

Started by lomaguindo in Analog Devices DSPs23 years ago 4 replies

hello, could anyone recommend a type of sdram that i could connect to a 21065L? the needed space is just small, about 1-2 Mbytes...

hello, could anyone recommend a type of sdram that i could connect to a 21065L? the needed space is just small, about 1-2 Mbytes only. thanks.. carlo.


SDRAM (Blackfin HPPCI ICE)

Started by Chung Hao Chang in Analog Devices DSPs23 years ago

SDRAM (Blackfin HPPCI ICE) Hello, We designed the target board with ADSP-21532s, and usi

SDRAM (Blackfin HPPCI ICE) Hello, We designed the target board with ADSP-21532s, and usi


Parallel Internal / External Memory Access

Started by andor_bariska in Analog Devices DSPs22 years ago 6 replies

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


SDRAM DMA: Update

Started by andor_bariska in Analog Devices DSPs22 years ago

Well, finally got it working. I'd like to note two things: 1. I (erroneously) had the 65L silicione rev. 0.2 on my development ...

Well, finally got it working. I'd like to note two things: 1. I (erroneously) had the 65L silicione rev. 0.2 on my development board. From previous experience, I know that this causes problems (ie. unusable) in multiple DSP setups with shared SDRAM. 2. On a new developm