where can I find some infos or internet resource about writing a simple flash filesyestem? We don't need something complex (like jffs), since we...

where can I find some infos or internet resource about writing a simple flash filesyestem? We don't need something complex (like jffs), since we have 1MB flash and few Kbytes sram. thanks -- Mastupristi?

Hello, Does anybody know an evaluation board for the LH7A400 Controller, except the Logic PD Zoom card engine kits? I am looking for a...

Hello, Does anybody know an evaluation board for the LH7A400 Controller, except the Logic PD Zoom card engine kits? I am looking for a board with SRAM instead of SDRam, to test to which level power consumption can be brought. Thanks for all hints. H. Karlin

I am very familiar with the various ARM MCU offerings. But I have a need for an MCU with 3 or more SPI ports which is not so easy to find in an...

I am very familiar with the various ARM MCU offerings. But I have a need for an MCU with 3 or more SPI ports which is not so easy to find in an ARM. There are a few, but they have higher power consumptions and that makes them poor choices for a battery powered app. I don't have hard requirements yet, but I think 128 kB of Flash will do the job along with 16 kB of SRAM. I may need an I2C ...

Does anybody have a link to VHDL code to transform say... XC9572 & CY7C1399 into a 'slow' Dual 16Kx8 FIFO (for about $3.65 in Qty 100) IDT's...

Does anybody have a link to VHDL code to transform say... XC9572 & CY7C1399 into a 'slow' Dual 16Kx8 FIFO (for about $3.65 in Qty 100) IDT's stuff is too $$$$ and I don't really need the 'instantaneous' simultaneous access from "both sides"... handshaking with ready/done deal is good enough.

Hi, I am trying to configure DMA controller on LPC2468 .I got the sample code on NXP website. It is transfering data from memory to memory...

Hi, I am trying to configure DMA controller on LPC2468 .I got the sample code on NXP website. It is transfering data from memory to memory .This memory is internal USB SRAM. But not work on simulator of keil software Evaluation Version 3.23. Any one can help me in this regards. Swapnali

I have been trying to get a simple SRAM chip at 8mbit. It seems that there are 20 manufacturers who make them, and nowhere to buy or get a few...

I have been trying to get a simple SRAM chip at 8mbit. It seems that there are 20 manufacturers who make them, and nowhere to buy or get a few samples. Digikey is where I started, but everythings out of stock except cyprus parts. Those parts are a bit more complex and high powered than I wanted. The Toshiba parts look great but theyre out of stock. I've tried mouser, arrownac, and took o...

Hi All, i am looking for a new Micro for a private project: Needed Features: - Performance of a 12MHz 80C535 is enough - 2 serial...

Hi All, i am looking for a new Micro for a private project: Needed Features: - Performance of a 12MHz 80C535 is enough - 2 serial Ports - 128kB Flash - Battery bufferd SRAM on board (16k and more) - RTC - 4 8 or 16bit Timers - GPIO's for Key's (8), LCD (Standart 4 bit and control) and LED (8) - SD card interface Most cruical is that a free compiler is available since I dont want...

Hi All, I have a few questions on implementation: P.S. I have read the manual closely. 1. How does the real time clock keep time during power...

Hi All, I have a few questions on implementation: P.S. I have read the manual closely. 1. How does the real time clock keep time during power cycles ? 2.I want to run my code in flash, i think these days it is fast enough, know it is only 16 bit and must use thumb mode on compiler. What othe problems will i not like ? 3. My RAM memory will be SRAM which again is only 16 bit and must b ba...

Hello all, I'm trying to choose a microprocessor for a new design and would like to get input from members of the community who have used...

Hello all, I'm trying to choose a microprocessor for a new design and would like to get input from members of the community who have used these processors. The requirements are an Ethernet MAC (PHY would be nice, but haven't found a chip which meets this plus the other requirements), I2C, external memory bus to access 4MB SRAM (or SDRAM) buffer, hobbyist-friendly packaging (not BGA, prefe...

We're having trouble hunting down sources for the particular flash/sram parts we need. Rather than providing a full spec of the parts...

We're having trouble hunting down sources for the particular flash/sram parts we need. Rather than providing a full spec of the parts needed (and expect someone here to find a perfect match :p), I was wondering if anyone knows of any other semiconductor companies not on my list that are manufacturers of memory [of any sort] and I'll go check them out. AKM, Alliance, Atmel (Temic), Aved, B...

I am currently working with a QVGA and interfacing it with a display controller which has 256kbytes of SRAM (display buffer). The QVGA is 18...

I am currently working with a QVGA and interfacing it with a display controller which has 256kbytes of SRAM (display buffer). The QVGA is 18 bit (R,G,B - 6bit each.) I would like to calculate the address range for each line, so that I can fill the buffer appropriately. Any leads would be really helpful. Suresh M. Shenoy

I'm trying to design a circuit with Ramtron's non-volatile parallel FRAM with built-in RTC - the FM3808. The datasheet states that the FRAM...

I'm trying to design a circuit with Ramtron's non-volatile parallel FRAM with built-in RTC - the FM3808. The datasheet states that the FRAM works differently than SRAM, in that it needs the chip enable CE/ to toggle between each access and not stay low. This is because it is needed for the necessary precharge period. I'm using an Atmel ATmega128's external memory bus, and will be ...

Thanks to all who responded to the previous thread I started regarding AVR+Nut/OS vs. ARM+Linux. I have decided to go with an AVR...

Thanks to all who responded to the previous thread I started regarding AVR+Nut/OS vs. ARM+Linux. I have decided to go with an AVR (Mega128) with external SRAM (32kB or 64kB, probably) and an external ethernet MAC. (I would still consider the AT91SAM7X, except that it doesn't seem to be generally available yet. If anybody knows where I can get it, I'll give it a shot.) For the OS and, more...

Hi folks, Instead of using a Coldfire core (as I wrote in a previous post), I've decided to use the NXP (Philips) LPC2210, as it's cheap and...

Hi folks, Instead of using a Coldfire core (as I wrote in a previous post), I've decided to use the NXP (Philips) LPC2210, as it's cheap and has a large enough memory bus to handle the 4MB SRAM we're going to use. I now need to decide upon a development kit and software tools. The dev. board has to have Ethernet capabilities, preferably using an RTL8019AS, though a CS8900A would be okay,...

Hello, I thought that I could ask for advices on this group since most high-end embedded CPU have the same constraints. I would like to add...

Hello, I thought that I could ask for advices on this group since most high-end embedded CPU have the same constraints. I would like to add a good RAM capacity to existing evaluation/development boards equiped with 2.54mm pins. Ideally that would mean 32 or 64MB with a 16-bit datapath (32-bit would be too wide, too many wires...). SRAM are not possible, the largest I have are 36Mbits in...

Hi, I need to know the size of a function or module because I need to temporarily relocate the function or module from flash into sram to do...

Hi, I need to know the size of a function or module because I need to temporarily relocate the function or module from flash into sram to do firmware updates. How can I determine that at runtime? The sizeof( myfunction) generates an error: "size of function unknown". Thanks.

I need to determine the size of a function or module since I need to temporary relocate the function or module from flash into sram for firmware...

I need to determine the size of a function or module since I need to temporary relocate the function or module from flash into sram for firmware updates. How can I find that out during runtime. The sizeof( myfunction) generates an error saying "size of function unknown". Thanks.

Anyone know of an IDE or USB Battery Back S-Ram that can be accessed like a normal drive? Small, like 256 or 512K would be fine. I found a...

Anyone know of an IDE or USB Battery Back S-Ram that can be accessed like a normal drive? Small, like 256 or 512K would be fine. I found a couple of manufactures that have a PC104 CF Adapter with Battery Back S-Ram onboard but they must be out of business because no replies for more info. Richard ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- h...

Does anyone have information on the Make Controller Kit board? Is $150 a good price? According to www.uCHobby.com it has the new Atmel...

Does anyone have information on the Make Controller Kit board? Is $150 a good price? According to www.uCHobby.com it has the new Atmel AT91SAM7X256 with everything except the kitchen sink; 256K Flash, 64K SRAM, JTAG, Ethernet, CAN, USB, 3 UART, 10 A/D, 4 PWM, 2 SPI, Watch Dog Timer, POR and Brownout etc...

Hi all, I'm thinking about a new board for JOP (or MB, NIOS). The board should be small and cheap (below the S3 Starter Kit). It should only...

Hi all, I'm thinking about a new board for JOP (or MB, NIOS). The board should be small and cheap (below the S3 Starter Kit). It should only contain the absolute necessary parts for a CPU design. Here is the suggested part list: FPGA: Cyclone EP1C3 or Spartan XC3S200 256Kx16 15ns SRAM 2 MBit serial Flash 3.3V linear regulation switching regulator for the core voltag...