Hi All, My MCU can't support me to declare large enough memory to store my byte arrary data, what can I do? Could you please...

Hi All, My MCU can't support me to declare large enough memory to store my byte arrary data, what can I do? Could you please advice? Thank you very much! Best regards, Boki.

I just answered one here about this topic and it brought a question to my mine. Does anybody know of software that can be use on an...

I just answered one here about this topic and it brought a question to my mine. Does anybody know of software that can be use on an 80xxx series computer that provides a memory map of used/unused I/O port addresses? GRAVITY: It's not just a good idea-IT'S THE LAW!

I have read that Motorola colfire series of processors provides a glueless memory interface. What exactly does this term mean. I tried google...

I have read that Motorola colfire series of processors provides a glueless memory interface. What exactly does this term mean. I tried google search but i could not get a satisfying answer. Please help Thank you NITIN S

Hi, Due to memory constraints, the application image is placed in 2 different flash memory . The image in the Flash Memory is already...

Hi, Due to memory constraints, the application image is placed in 2 different flash memory . The image in the Flash Memory is already of compressed format. In RAM, there is no enough space to accomodate both the parts together at the same time. How to overcome this scenario without increasing the RAM ? Is increasing the RAM , the only way to overcome this situation ? Thx in advans, ...

I've been through a couple of 8051 tutorials but still have a very fuzzy view of its architecture. Could someone draw me a simple view of...

I've been through a couple of 8051 tutorials but still have a very fuzzy view of its architecture. Could someone draw me a simple view of it. From what I gather there is Program Memory and Data Memory. Withing Data Memory there are 1) General Purpose Registers (arranged in banks) 2) Bit Addressable Registers 3) Stack Space 4) SFR (Special Function Registers) Now are Program ...

I'm using the 2.6.10 kernel on a custom circuit board based on Freescales MCF5485evb evaluation board. My board has different flash memory...

I'm using the 2.6.10 kernel on a custom circuit board based on Freescales MCF5485evb evaluation board. My board has different flash memory than the evaluation board and so requires different flash drivers than the BSP that was provided with the board. The flash memory I am using is the Intel P33 (256P33B) NOR flash. I have two chips with the chip selects tied to the same logic line. The ...

I need to cut down the size occupied by the boot code drastically to add in new code. The current memory occupied by boot code +application+ram...

I need to cut down the size occupied by the boot code drastically to add in new code. The current memory occupied by boot code +application+ram in an external flash memory chip is together 1MB. This cannot be increased. The boot code is located at the high address. All source code is written in C++. This is clearly an embedded/firmware query and would need help so as to how to optimize the sou...

Hi out there, I still try to speed up my little curcuit that contains a CY68013A FX2LP Chip. I am able to transfer 3,5 Mb/s without any...

Hi out there, I still try to speed up my little curcuit that contains a CY68013A FX2LP Chip. I am able to transfer 3,5 Mb/s without any external memory. I want to transfer data with even higher speeds and want to extend memory for this. So can anyone explain which memory buffers I have to enlarge to reach higher transfer rates? Do I have to use bigger endpoint buffers? I am reading data fr...

Hi there, I've got a C164CI and I have to write a bootloader in assembly to load my Hex-Files into the Flash memory. I've got a 32-Byte...

Hi there, I've got a C164CI and I have to write a bootloader in assembly to load my Hex-Files into the Flash memory. I've got a 32-Byte primary loop that loads another loop, refered to as secondary loop, which should load the main prog and write it into the flash memory. Everything seems to work fine, as I've inserted some LED controll codes, and the code seems to work, but when I've finsh...

Hi folks, I want to understand how exactly is an image(compiled c code and loaded into memory) stored in memory. What exactly is a linker...

Hi folks, I want to understand how exactly is an image(compiled c code and loaded into memory) stored in memory. What exactly is a linker script? I work with a lot of c code on a daily basis but I really don't understand : How exactly the sections like "text,bss,data etc." work? What exactly are they? I believe the linker script describes this layout. What exactl...

Hi Friends, I have 1M flash memory allocated for Application. But the Application size exceeds the 1M limit (Application size is 2M). But,...

Hi Friends, I have 1M flash memory allocated for Application. But the Application size exceeds the 1M limit (Application size is 2M). But, now i cannot redesign the hardware and fit in any extra Flash Memories to resolve this size issue . I have RS232, Ethernet support on my board. My Bootloader is loading the application perfectly. ( I tried with a small application that spits some stri...

http://www.realworldtech.com/page.cfm?ArticleID=RWT120307033606&p=1 Rambus Sets the Bandwidth Bar at a Terabyte/Second Last week at...

http://www.realworldtech.com/page.cfm?ArticleID=RWT120307033606&p=1 Rambus Sets the Bandwidth Bar at a Terabyte/Second Last week at the annual Developer's Forum in Japan, Rambus announced an ambitious technology initiative that aims to create a 16 gigabit- per-second memory signaling layer that can sustain 1TB/s of bandwidth to a single memory controller by 2010. The Terabyte Bandwi...

Hi, It seems that Intel's Execute Disable Bit functionality can help prevent certain classes of malicious buffer overflow attacks by allowing...

Hi, It seems that Intel's Execute Disable Bit functionality can help prevent certain classes of malicious buffer overflow attacks by allowing the processor to classify areas in memory by where application code can execute and where it cannot. But, isn't it a normal functionality present in almost many of the processors that have memory classification as Read Only Memory and Read/Write Mem...

I am using electric fence 2.1.13 to try to find a memory allocation problem that occurs after my application runs for about 3 hours. When I...

I am using electric fence 2.1.13 to try to find a memory allocation problem that occurs after my application runs for about 3 hours. When I link to the electric fence library, I get "ElectricFence Exiting: mprotect() failed: Cannot allocate memory" during initialization. Could this be the source of the error that takes 3 hours to occur? I wonder because all I see at this point is a 12 byte ...

Could someone explain memory mapped IO and Port IO? When should I use one or the other? why some devices support port IO only? thanks gt

Could someone explain memory mapped IO and Port IO? When should I use one or the other? why some devices support port IO only? thanks gt

Hello I need to program a self test for a SPI FLASH memory in an embedded system. How should I do that. Should I first erase the memory...

Hello I need to program a self test for a SPI FLASH memory in an embedded system. How should I do that. Should I first erase the memory (sets all bytes to 0xFF), then write 0x00 to all bytes, verify, then erase, verify that all bytes are set to 0xFF again? Any tip on how I should do?

I have a 300 MHZ AMD Geode processor embedded computer. What embedded operating system software is out there that I can load onto a 250mb...

I have a 300 MHZ AMD Geode processor embedded computer. What embedded operating system software is out there that I can load onto a 250mb memory card as a hard drive. Iam using a memory card to cut down on space and portability. I have windows 95 loaded at the moment as a operating system, with a GPS program. Iam using a GPS for navigation, the Windows 95 takes up to much memory. T...

Please I would like about how I read/write and erase the NAND Flash memory of 4Gbits using uC linux. My system is based in DSP Blackfin...

Please I would like about how I read/write and erase the NAND Flash memory of 4Gbits using uC linux. My system is based in DSP Blackfin BF527. Thanks

Hi has anyone tried writing to the information memory of the MSP430 with the BSL. I'm trying and failing, I have applied the patch but...

Hi has anyone tried writing to the information memory of the MSP430 with the BSL. I'm trying and failing, I have applied the patch but it doesn't seem to work. Do I need to download the latest BSL? or can you not write to the Info Memory with the BSL commands? Cheers Mark.

Hi Im new to the world of embedded systems.. Can anyone give me any examples of accessing memory locations using C as well, as say, clearing...

Hi Im new to the world of embedded systems.. Can anyone give me any examples of accessing memory locations using C as well, as say, clearing them .. For example, if i have to clear addresses from 3000h to 3300h, how do i go about doing the same ??? thanks heaps.. techie