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Memfault Beyond the Launch

flash memory(external)

Started by risha in comp.arch.embedded19 years ago 14 replies

need to know how to write data into external flash memory(offchip).using MCU MC9S12A128B and the external flash memory chip is M29F040B.Is there...

need to know how to write data into external flash memory(offchip).using MCU MC9S12A128B and the external flash memory chip is M29F040B.Is there any special code to be sent to the external flash memory.Using a cpld chip number being CY37128P84 125 JC which is used for the selecting the external flash chip.Also using metrowerks code warrior and BDM Multilink. Thanks for any help, Ranjita...


how to program a flash with the wiggler? (for free)

Started by Erol in comp.arch.embedded19 years ago 21 replies

I bought a wiggler probe for ARM7 and was very disappointed when I didn't receive a Flash Programmer Utility with it! Apparently they sell the...

I bought a wiggler probe for ARM7 and was very disappointed when I didn't receive a Flash Programmer Utility with it! Apparently they sell the Flash Programmer SW for 500 extra bucks! I am not eager to pay any additional dollars to this company, so I would like to know if the wiggler can be used with any other Flash Programmer software. Thanks, Erol P.S. I heard that the OCD Comman...


What's inside a USB flash drive?

Started by Anonymous in comp.arch.embedded19 years ago 5 replies

Has anyone opened up a commodity USB flash drive? Obviously there is a customized USB-capable microcontroller in there. What I'm wondering is...

Has anyone opened up a commodity USB flash drive? Obviously there is a customized USB-capable microcontroller in there. What I'm wondering is if there is a seperate flash memory chip with a standard interface that could be scavenged for use in projects (since implementing the _host_ side of USB in a micro is sadly unrealistic at present). Yes, it's easy to talk to compact flash and simil...


Compact Flash to IDE

Started by Abe Cd in comp.arch.embedded19 years ago 7 replies

Seeing as Compact Flash uses a standard IDE interface, would it be possible to attach an ordinary hard drive to a camera via a compact flash...

Seeing as Compact Flash uses a standard IDE interface, would it be possible to attach an ordinary hard drive to a camera via a compact flash slot? There are many adaptors on the market that go the other way (allowing you to use compact flash cards as hard drives in a PC), but I haven't seen anyone attempt this yet, except with microdrives. Is this possible? TIA


Testing Flash Memory Question

Started by panfilero in comp.arch.embedded16 years ago 11 replies

I am purchasing a Nand-Flash memory chip.... just stand alone only flash... not a microcontroller or anything. I was wondering if anyone knew...

I am purchasing a Nand-Flash memory chip.... just stand alone only flash... not a microcontroller or anything. I was wondering if anyone knew of any interfaces or test boards (maybe they are called flash controllers? I'm not sure) that I could use to test the memory... basically I will write a little code to read and write, and then check that the memory is ok. So far I have found this: ht...


NAND flash in embedded designs?

Started by Joe in comp.arch.embedded17 years ago 4 replies

Is anyone out there using NAND flash in an embedded design ? If so, have you found it to be reliable ? My application would primarily read...

Is anyone out there using NAND flash in an embedded design ? If so, have you found it to be reliable ? My application would primarily read form flash upon powerup and run out of ram. No more than 5-10 flash updates (write), in a 10 year life cycle. I'm aware of the fact that NAND is also prone to single-bit errors, which requires rigorous algorithms for error detection and correction...


Bootloader Placement

Started by Tom Lucas in comp.arch.embedded18 years ago 8 replies

I have written a bootloader to reside in my first sector (128Kbyte) of flash which, firstly copies all code and data from flash to RAM and then...

I have written a bootloader to reside in my first sector (128Kbyte) of flash which, firstly copies all code and data from flash to RAM and then checks data on an MMC card to see whether an update of the flash is necessary and, if so, copies new program data into the flash. At the moment I have two projects - the bootloader as a stand-alone loader and the full application, which has the b...


Boot Block of NOR flash memories ??

Started by satish.aradhya in comp.arch.embedded14 years ago 9 replies

HI, I have the following queries based on the Flash Memory, 000. What is the advantage of Top Boot Flash Memory and What is the...

HI, I have the following queries based on the Flash Memory, 000. What is the advantage of Top Boot Flash Memory and What is the advantage of Bottom Boot Flash memory ? 001. what are the other differences between these Boot Block based Flash memories and Normal Flash Memories ? Satish


booting through NOR flash

Started by paddu in comp.arch.embedded15 years ago 1 reply

Hi, Is it possible to BOOT OMAP_L137 from 16bit NOR Flash? The bootloader document "SPRAB04B" states that "the bootloader configures EMIFA...

Hi, Is it possible to BOOT OMAP_L137 from 16bit NOR Flash? The bootloader document "SPRAB04B" states that "the bootloader configures EMIFA for 8-bit access and reads the first word from the NOR Flash" Does this require a different settings with DSP and Flash for the first 8 bit access? does anybody have documents or application notes for booting OMAP-L137 from NOR Flash and als


simple flash file system

Started by Mastupristi in comp.arch.embedded19 years ago 9 replies

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?


Flash data retention after soldering

Started by Jookie in comp.arch.embedded15 years ago 4 replies

Hello all, I'm using AT45DB041 in my design (SPI Flash, 4Mbit), and I thinking of preprogramming the flash before soldering it to the rest of...

Hello all, I'm using AT45DB041 in my design (SPI Flash, 4Mbit), and I thinking of preprogramming the flash before soldering it to the rest of device - this would avoid the in-system programming. But will the Flash retain data after soldering? If it would be for couple of pieces, then I wouldn't mind the in-system programming, but as this will be done for 100's of devices, this might save ...


develop Nand flash driver on ThreadX

Started by rajeehnair in comp.arch.embedded13 years ago

Hi, I need to develop Nand Flash driver on threadX Whre will i get the infrastructure for NAND flash Whether I want to write Flash...

Hi, I need to develop Nand Flash driver on threadX Whre will i get the infrastructure for NAND flash Whether I want to write Flash Transition Layer for this or will I get any API support regards Raj --------------------------------------- Posted through http://www.EmbeddedRelated.com


Silicon Bug?

Started by Robert Higgins in comp.arch.embedded14 years ago 2 replies

I've run into a problem with a little project I've been working on. The project is a flash loader utility for the TMS470 that runs from RAM and...

I've run into a problem with a little project I've been working on. The project is a flash loader utility for the TMS470 that runs from RAM and programs the flash with data coming in over a serial port. The micro is a TMS470R1A288, which is based on an ARM7TDMI core. There is 16K of on-chip SRAM starting at address 0x00400000; the flash loader code runs entirely from this SRAM. The flash l...


strange problem with flash, M29F040B

Started by Adib Taraben in comp.arch.embedded17 years ago 8 replies

Hello, I have a micro-controller application (XC167) connected to an 512KByte flash M29F040B from ST via 8 bit demultiplexed bus. I can...

Hello, I have a micro-controller application (XC167) connected to an 512KByte flash M29F040B from ST via 8 bit demultiplexed bus. I can clear the flash, erase single sector and write something. But in every sector (64kByte each) I have problems with the addresses 0x300...0x30F. On a clean flash I read 0x55 where it should be 0xFF. I can write up to address 0x300 ok and the it fails. ...


Accessing Compact flash ???????

Started by Anonymous in comp.arch.embedded18 years ago 2 replies

Environment in which system works: Microblaze softcore processor on spartan 3 fpga board compact flash, acting as a mass storage. How to...

Environment in which system works: Microblaze softcore processor on spartan 3 fpga board compact flash, acting as a mass storage. How to access the compact flash in embedded applications write to and read from the compact flash? how to access the FAT table? to which sector i need to write, which address? which mode of addressing is easy way out CHS or LBA?? I got no clue how to ...


nand flash where

Started by Elektrolot in comp.arch.embedded16 years ago 4 replies

I can't find supplier of nand flash in small quantity (about 100pcs). Where I can buy nand flash 2Gb, 4Gb, 8Gb 8-bits in 48-TSOP...

I can't find supplier of nand flash in small quantity (about 100pcs). Where I can buy nand flash 2Gb, 4Gb, 8Gb 8-bits in 48-TSOP like: K9F2G08U0M K9F4G08U0M K9F8G08U0M Anybody can help? Thanks David


Why Do embedded processors have more Flash than RAM

Started by Maddy in comp.arch.embedded18 years ago 6 replies

Hi, I cant help wonder why embedded processors have more Flash than RAM? Right now, I am working with the AT91SAM7S, it has 256K Flash and...

Hi, I cant help wonder why embedded processors have more Flash than RAM? Right now, I am working with the AT91SAM7S, it has 256K Flash and only 64K RAM. Why is this? I am assuming we cannot run out of Flash. So if I had a program greater than 64K what am I suppposed to do? Maddy


what is the generic ref for this Intel chip ? I need to flash it ...

Started by DEMAINE Benoit-Pierre in comp.arch.embedded19 years ago 2 replies

I have a Cogent CSB336 with ARM920T and 8MB Flash: Intel E28F640J3 I access this board through a BDI2000 ethernet, both telnet and gdb...

I have a Cogent CSB336 with ARM920T and 8MB Flash: Intel E28F640J3 I access this board through a BDI2000 ethernet, both telnet and gdb interfaces. the actual conf file for the BDI is: [FLASH] WORKSPACE 0x08000000 ;workspace in target RAM for fast programming CHIPTYPE AM29BX16 ;Flash type (AM29F | AM29BX8 | AM29BX16 | I28BX8 | CHIPSIZE 0x00800000 ;The size of...


How to learn to program parallel flash?

Started by blisca in comp.arch.embedded16 years ago 2 replies

Hi,to all i have built a kind of...thing with the purpose to program a Flash memory from PC parallel via a CPLD The Cpld i used is a...

Hi,to all i have built a kind of...thing with the purpose to program a Flash memory from PC parallel via a CPLD The Cpld i used is a Xilinx xc95144 and the flash that i got scraped from surplus(maybe a dvd) is HY29LV160 www.hynix.com/inc/pdfDownload.jsp?path=/upload/products/gl/products/flash/down/HY29LV160.pdf I did the programming software in visual basic,and it looks that i can ...


flash memory write endurance

Started by ganuhegde in comp.arch.embedded14 years ago 5 replies

I am using P89V51RD2 flash enabled mc for my application . I am using flash memory to store data. I want to know the flash "write endurance" based...

I am using P89V51RD2 flash enabled mc for my application . I am using flash memory to store data. I want to know the flash "write endurance" based on erase cycle or write -erase cycle... plz somebody help me out Thanks ganu --------------------------------------- This message was sent using the comp.arch.embedded web interface on http://www.EmbeddedRelated.com



Memfault Beyond the Launch