I'm using lwip that runs httpd over LPC1769 MCU. Now the filesystem for httpd can't fit the internal Flash memory anymore. So I'm going to use...

I'm using lwip that runs httpd over LPC1769 MCU. Now the filesystem for httpd can't fit the internal Flash memory anymore. So I'm going to use an external SPI Flash memory. I need some suggestions about a filesystem to use. I need: - a tool that creates a binary (or Intel HEX) image from a folder on my Windows development machine (the image will be downloaded to Flash); - file ma...

I'm new to learning about jtag and it's capabilities, and my professor isn't helping me at all. I understand jtag is mainly used in processors,...

I'm new to learning about jtag and it's capabilities, and my professor isn't helping me at all. I understand jtag is mainly used in processors, but I was reading on Altera's website about a flash chip (EPM3032A) they use that has jtag support. What jtag device would I need to communicate with a flash chip like that? I understand there are jtag devices that support many versions of arm, mip...

http://microcontroller.com/news/STR750_stmicroelectronics.asp Up to 256MBytes Flash and more coming, lots of peripherals, and runs out of the...

http://microcontroller.com/news/STR750_stmicroelectronics.asp Up to 256MBytes Flash and more coming, lots of peripherals, and runs out of the internal Flash at 60MHz. With everything turned the max run current is 90mA @ 60MHz - that comes to 1.5mA/MHz. Regards, Bill Giovino Executive Editor http://Microcontroller.com

I'm tried to write or read from the external flash on the avr butterfly evaluation board. Even examples don't work. I thought I might...

I'm tried to write or read from the external flash on the avr butterfly evaluation board. Even examples don't work. I thought I might have burned up the board but I tried another board with the demo program (there's a special key press combination in the source code that runs a test on all functions of the board) ,and the same thing happens. I'm just not able to talk to the flash. Any suggest...

Hi guys, I have a litte question for this group. The erasure/programing cycles in the Nand Flash devices are normaly 100.000 cycles....

Hi guys, I have a litte question for this group. The erasure/programing cycles in the Nand Flash devices are normaly 100.000 cycles. Suppose that my NAND Flash has 32 pages per block and one block was previously erased, Is the individual page programming counted like a cycle or is only the erase block operation taken into account. Thanks in advance :)

Hi All, I am working on a prototype board based on at91rm9200dk.now i have placed only one SDRAM (16 MB)on my board.I am able to access the...

Hi All, I am working on a prototype board based on at91rm9200dk.now i have placed only one SDRAM (16 MB)on my board.I am able to access the sdram and flash successfully but now after storing the gzip image u-boot.gz in flash when the board get reboot from external flash, it got hanged at Uncompressing Image... I thing it is trying to uncompress the image at the location above 16MB. ...

Hi I am using a STM32 and I want to use the flash as storage, but I need the processor to keep running Writing to flash while execution from...

Hi I am using a STM32 and I want to use the flash as storage, but I need the processor to keep running Writing to flash while execution from flash will take about 20us for 16bit value and when the entire block is close to be filled up an erase of the block takes 20ms 20ms halt of code execution is not an option So, the plan is: Copy code that needs to run to RAM Move p

Hey Guys, I want to flash my MPC8343 Target (Freescale 8343 PowerPC by Embeddedplanet.com. I´m Using Windriver VisionClick and a Pobe JTAG to...

Hey Guys, I want to flash my MPC8343 Target (Freescale 8343 PowerPC by Embeddedplanet.com. I´m Using Windriver VisionClick and a Pobe JTAG to write U-Boot on my Target. So i connect the target and enter BKM Mode. Everytime i try to flash, the system answers " ERROR CANNOT LOAD ALGORITHM AT ADRESS XXXXXXXXX". So i tried some new adresses but it dosent work. i think i cant write into ram ...

I have an compact flash attached to an IDE CF adapter that boots fine in one motherboard but isn't recgonized as a hard drive in...

I have an compact flash attached to an IDE CF adapter that boots fine in one motherboard but isn't recgonized as a hard drive in another. Does anyone here have any experience with Compact Flash in IDE mode and suggestions/explanations? The card I'm using in a SanDisk 256MB and the converter is the http://www.monoprice.com/products/product.asp?c_id=104&cp_id=10407&cs_id=1040705&p_id=21

Hi, I did a design with AT45DB321D to use with ASIC. the ASIC development kit contained the AT45DB321D 32Mbit flash and I use the same thing in...

Hi, I did a design with AT45DB321D to use with ASIC. the ASIC development kit contained the AT45DB321D 32Mbit flash and I use the same thing in my design. But now unfortunately the AT45DB321D 32Mbit chip is out of stock every where and it has 7 months lead time. is there any one who know a compatible part for this serial flash --------------------------------------- Posted t...

Hi, I have a designed a PCB that has a 512Kbits flash with Intel 386EXTC processor. I am trying to test my PCB by hooking up the data and...

Hi, I have a designed a PCB that has a 512Kbits flash with Intel 386EXTC processor. I am trying to test my PCB by hooking up the data and address lines on logic analyzer and writing simple JMP (short) instruction in 386 assembly language. I know that since my UCS is connected to CS of Flash, processor will go to FFF0h address of Flash and execute the instruction present at FFF0h. My Fla...

I'm building a data logger with a microcontroller and logging to a microSD card over time and then want to be able to copy it off fast over USB...

I'm building a data logger with a microcontroller and logging to a microSD card over time and then want to be able to copy it off fast over USB with a USB 2.0 Flash controller like those found in PC flash card readers. I stumbled across this webpage @ http://www.hjreggel.net/cardspeed/info-controller.html , but am unable to find any places that sell these controllers in small quantities (ie

Hello, I would like to use the STM32F207 in order to interface up to 8 can channels by means of the SJA1000 can controller IC. In addition...

Hello, I would like to use the STM32F207 in order to interface up to 8 can channels by means of the SJA1000 can controller IC. In addition there is need for Compact Flash interface, plenty of external ram and flash memory. The Flexible Static Memory Controller (FSMC) peripheral seems that it could handle these requirements, but I'm not familiar with STM32 and so I have some questions. First ...

can AT91SAM7X256 have external flash and DRAM? AT91SAM7X256doesn't have EMI(external memory interface) , is it possible to extend external flash...

can AT91SAM7X256 have external flash and DRAM? AT91SAM7X256doesn't have EMI(external memory interface) , is it possible to extend external flash and DRAM? thanks

The background is here https://www.eevblog.com/forum/microcontrollers/32f417-usb-fs-(not-hs)-and-dma/msg3958874/#msg395 8874 and...

The background is here https://www.eevblog.com/forum/microcontrollers/32f417-usb-fs-(not-hs)-and-dma/msg3958874/#msg395 8874 and here https://community.st.com/s/question/0D53W00001KTXLFSA5/how-to-integrate-slowwrite-spi-flash-into -stm32-usb-device-library-to-return-ok-csw-when-flash-write-finishes but nobody seems to know. However lots of people must have gone up this path... I am

Does anyone know of a cheap/free (hobbyist price) solution for programming the flash on a Freescale MAC71xx processor? Thanks, Simon

Does anyone know of a cheap/free (hobbyist price) solution for programming the flash on a Freescale MAC71xx processor? Thanks, Simon

I'm looking into adding support for USB Flash sticks to a current design, perhaps even for retrofit. The product volumes are in the small...

I'm looking into adding support for USB Flash sticks to a current design, perhaps even for retrofit. The product volumes are in the small thousands a year. The product has an expansion connector that has power, a few GPIOs and a UART or SPI. Currently this connector is used to add a serial printer or a few other things. Now I'd like to add USB flash. Actually, no I wouldn't, but thats wh...

Hi, does anyone know if there are any existing routines already written to access external Flash RAM (64k x 8) in either ANSI C or...

Hi, does anyone know if there are any existing routines already written to access external Flash RAM (64k x 8) in either ANSI C or Assembler? Thanks in advance, Ken.

Hi all, I'm thinking of ways to implement a nearly non-volatile counter using flash and RAM. Idea is to count events in a RAM counter and...

Hi all, I'm thinking of ways to implement a nearly non-volatile counter using flash and RAM. Idea is to count events in a RAM counter and write the count to flash every n times. At first I thought I'd just use successive locations in flash until I need to reformat the entire sector but I'm thinking it may be better to flip single bits from 1 to 0 with each bit indicating n events. Tha...

Hello. I'm having a bit of a problem writing a bootloader for the Renesas H8S/2314. The problem seems to be that i'm unable to write to the...

Hello. I'm having a bit of a problem writing a bootloader for the Renesas H8S/2314. The problem seems to be that i'm unable to write to the flash memory. So far, the problems seems to be that i'm unable to assert the FWE bit, however i'm able to program it using the Flash Development toolkit (so it enters bootmode, which implies that the FWE bit is asserted). I've put a switch connected to ...