Hello, I'm designing a board based on the MC68360, and I'd like to wire some Flash directly to CS0 (CSBOOT). I will provide a BDM-connector...

Hello, I'm designing a board based on the MC68360, and I'd like to wire some Flash directly to CS0 (CSBOOT). I will provide a BDM-connector and use this for the first start of the board. On the first startup, I don't have any code in the Flash, so I have to program the Flash via BDM. For this, I'd like to download a little program into RAM - but hey, can I get access to my RAM right now?...

Looking for a small, light-weight Flash file system, preferably 8051 --C or ASM. Interface to Flash is via SPI, not parallel. It doesn't...

Looking for a small, light-weight Flash file system, preferably 8051 --C or ASM. Interface to Flash is via SPI, not parallel. It doesn't have to be free. Thanks, -Martin

hi anybody knows options for 50+MIPS 8/16 bit flash MCU? besides PIC/SX/SiLabs? there must some around.. should FAST and cheap. not much...

hi anybody knows options for 50+MIPS 8/16 bit flash MCU? besides PIC/SX/SiLabs? there must some around.. should FAST and cheap. not much flash required. internal oscillator is a must. Antti

For an application I need to store a large amount of data (ca. 3MB). A serial flash could be a good idea (I don't need to erase very often, and...

For an application I need to store a large amount of data (ca. 3MB). A serial flash could be a good idea (I don't need to erase very often, and if I erase, I will erase all the data at once). I found Atmel's products. But there is a problem: Atmel produces 2 types of serial flash: Serial Flash and DataFlash(r). What's the difference? Any other suggestion (producer, kind of memory,...) ar...

Hi all guys, I am requested to add some time-clock information in flash, to indicate how long the device is used by end-user. user can read...

Hi all guys, I am requested to add some time-clock information in flash, to indicate how long the device is used by end-user. user can read but have no power to change it. I have some puzzles about flash write issue. 1. Can I write a part of flash unit(i.e. 16 bytes) instead of one sector? 2. Can I do write operation for not 0xff content(not erase before write)? 3. Write/erase f...

Hello, I am writing the flash burnner program for my own board. I can debug it by using ARM SDT2.51, i.e. load my program to RAM (0x0c000000)...

Hello, I am writing the flash burnner program for my own board. I can debug it by using ARM SDT2.51, i.e. load my program to RAM (0x0c000000) and execute it. "Hello World" (LED-blinking) is working. Currently I try to burn the "hello world" to flash (0x00000000). My method is to load the flash burnner to RAM and run it and copy "hello world" to flash. But when I want writing the sequence...

My project uses a Philips XA-49 microcontroller. I need to use the built-in Flash programming API. I have successfully used it to...

My project uses a Philips XA-49 microcontroller. I need to use the built-in Flash programming API. I have successfully used it to write bytes to flash, but when I request a block erase the call does not return. I am waiting for PWDVLD in the AUXR register. Does anyone out there have experience with this API on this part? Regards, Paul.

good day all :o : the excellent AT91FR40162 device has 2MB 16-bit wide Flash onchip. i had a few questions regarding this: - on Atmel's site,...

good day all :o : the excellent AT91FR40162 device has 2MB 16-bit wide Flash onchip. i had a few questions regarding this: - on Atmel's site, only the AT91FR40162S and AT91FR40162SB are listed. what happened to the other devices in this Series? - are the AT91FR40162S and AT91FR40162SB currently available? - does the onchip Flash in these devices allow updating of the Flash while run...

Im trying to learn microprocessors, and Im a bit confused about flash vs eeprom. 1. Does my program that I download (via ISP ribbon cable) go...

Im trying to learn microprocessors, and Im a bit confused about flash vs eeprom. 1. Does my program that I download (via ISP ribbon cable) go into the EEPROM or the FLASH? 2. Can my user program use the EEPROM at run-time or must it be programmed ahead of time? 3. How does a bootloader work? (If I store a bootloader in flash, will I need the ISP connector to program the chip anymore...

If we lost power during a flash block erase on a traditional CFI NOR flash (e.g. S29AL032D) what would the resulting bit pattern likely look...

If we lost power during a flash block erase on a traditional CFI NOR flash (e.g. S29AL032D) what would the resulting bit pattern likely look like? I know that the erase operation flips all bits to 1 so would it be possible to see an occasional 0 in a sea of 1s? Or would we see successive 0xFFs up to some point and then the previous content in the higher addresses? Thanks, Andrew

Is it possible that embedded system doesn't have flash memory? If we use flash memory in embedded system, then we don't need to use ROM,...

Is it possible that embedded system doesn't have flash memory? If we use flash memory in embedded system, then we don't need to use ROM, or both? My understanding is that flash memory is similar to ROM, that stores permanent data like boot up instructions?? Is that correct? Please advice. thanks...

Hi, I am currently working on a project that requires me to interface an existing platform to an external memory, for additional storage....

Hi, I am currently working on a project that requires me to interface an existing platform to an external memory, for additional storage. Below is a block diagram of what I intend to do. [PC serial port] [existing platform board] [Serial Flash] The reason of interfacing with my existing board to a serial flash is that, the current embedded flash on the MC9S08GB uC is insuffic

I am porting my Linux 2.4 code from an evaluation board with an MPC8275 processor and 8 Mbytes of flash, consisting of four...

I am porting my Linux 2.4 code from an evaluation board with an MPC8275 processor and 8 Mbytes of flash, consisting of four Sharp LH28F016SCT-L95 flash chips, to a custom board with an MPC8270 processor and 8 Mbytes of flash, consisting of two Intel 28F320C3 flash chips. The custom board is crashing when mounting the JFFS2 filesystem. Specifically, with debugging on, in kmem_cache_alloc_on...

I am trying to find the ROM based flash routines for a HC08QT4. I found the application notes for flash routines in ROM for several other...

I am trying to find the ROM based flash routines for a HC08QT4. I found the application notes for flash routines in ROM for several other versions of the HC08 but not the QT4. The ones listed do not point to any op-codes. There are several JMP codes in the ROM but I don't know what they are for. Maybe there are no flash routines in ROM for the QT4 and I will just have to write the routi...

Hi, does somebody know a (windows) tool to make a BINARY IMAGE copy of a compact flash containing an operating system together with...

Hi, does somebody know a (windows) tool to make a BINARY IMAGE copy of a compact flash containing an operating system together with some applications. The new flash disk must be able to boot after the duplication. It might be possible under unix/linux by "dd if=/dev/xxx of=/fileonsomedisk" but i'd prefer some non-batch solution. Any hints - Thanx Rainer

Hi, I have 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...

Hi, I have 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 Flash contains th...

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...

Hi, hopefully a simple overlooked issue! I have borrowed a STK500 kit from a colleague and I'm attempting to download a simple program to the...

Hi, hopefully a simple overlooked issue! I have borrowed a STK500 kit from a colleague and I'm attempting to download a simple program to the 8515 device. I get the following in the message window: Erasing device.. OK Programming FLASH using block mode.. OK Reading FLASH using block mode.. OK WARNING: FLASH contents differs from file.. FAILED! Leaving programming mode.. OK ...

Can anybody recommend me a good flash file system supporting Intel's flash memory. I need a reliable software which preserves the file system...

Can anybody recommend me a good flash file system supporting Intel's flash memory. I need a reliable software which preserves the file system evenl under power loss conditions. Martin

Hallo I'm using AT90S1200 at 3,3V The application read the content of the flash via the serial programming interface. Then the contents will be...

Hallo I'm using AT90S1200 at 3,3V The application read the content of the flash via the serial programming interface. Then the contents will be compared with an CRC BYTE . Sometimes we found that 3 Bytes of Flash Memory get lost. Address 00, 01, 200 HEX Is there any experience with corrupted F L A S H Memory ? We found no way to generate this behavior ? But it happens 1 per 10...