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181 Threads found on edaboard.com: External Flash
Hi, I want to use an external SPI flash memory for a dedicated application, which will be connected to some I/O pins. Now, I have the content which I want to write it in to the memory (binary file) but I dont know how to write it in. I know I can use FPGA through JTAG to program an SPI flash which is tied at the FPGA configuration Block (...)
Which compiler? What are the config settings What actually is "not working"? We need a far more detailed description of what you have done, what should be happening but isn't, what is happening but shouldn't. Typically the places to look at are the hardware, config and software settings. For the hardware, you need to make sure that all bypass capac
Hey How fast can be SPI or I2C RAM for PIC18F? I would like to read data in blocks, will 10us be enough for such read? Maybe 20us? Any ideas?
Klaus that's not what the OP was asking... OP use the Xilinx SEM controller. You will need a extra external SPI flash device if you want more than SECDED. Control is managed by a UART interface.
130560 I have connected the 100W xenon flash tube to the smart strobe 750w board. When i stated testing some time the flash comes and flash rate control is not working it seems. i haven't connected the external trigger socket. Even though it is flashing some time ? Plea
Hi all.. i am working on a small project where i need to interface external flash memory to 89s52. as 89s52 has only 8kb of flash memory.... i need a bit larger size of flash memory aroind 20 to 22kb of flash memory to interface it externally... can any body please give me any ideas of (...)
Dear all, I am trying to implement an EtherCAT IP core (obtained from a vendor) on Xilinx Spartan 6 FPGA with Mars Enclustra MX1 starter baseboard. I have generated the IP core with 2 MIIs. (Vendor has provided the core generator software) I made TX, RX signals of both the MIIs as external ports and made corresponding changes in the ucf file.
I'm currently selecting microprocessor and one of the major concerns is external memory/flash. I need 4G of flash for our application. Many datasheet of microprocessor did not specify how much external memory it can support. For example, refer to, link below. Is there any way to know the external memory (...)
are you sure your arduino serial port is turned off? you need to make sure the arduino's mega328 isn't using the UART or it can be a source of problems... (disable serial comunication in your arduino or make sure the flash is blank (0xff)) It's better if you can use an external UART to USB converter like a CH340 or a FT232 board...
Hello! Yes, it's possible. I'm doing it. But what you have to be careful about is that a radio path has some non negligible error rates. It will therefore depend on what BT you are using, etc. I have an external flash for LCD data, and I am using a part of this flash to temporarily store the firmware. As long as the firmware and its (...)
hi I'm use ATxmega128a1 and at45db161 for store my icons, I 'm design my own HMI by this microcontroller and 7 inch tft lcd, everything is OK but I used 6 font that stored in internal flash and now my code is 130% of microcontroller's flash! when i use optimize is 90% and my code still remind. what should i do? how can i store fonts on (...)
ok, first, try writing the flash first! it it's successful, you can write the fuses... a new atmega comes with the internal oscillator enabled, so your first commands get answered correctly.. once it changes to an external oscillator, and the oscillator is faulty, you lose the communication... I can think only two possibilities: 1. you crystal
Now, we also can use Programme memory ( flash technology ! not ROM) to store or read datas by the application program (wich is also inside the flash Memory You also have EEPROM memory (MCU internal or external device, to write or read data when programming the device or by the application program... data remains into the EEPROM , even (...)
Hi, I am using epcs16 with EP3C FPGA and i want an external flash memory to read and write data on it. So, can i use epcs as external flash memory ?
Hi dear. 1)How can I program external flash memory of ? 2)You said with the can i use this solution for top threat ? Thanks & regard.
So I connected it between 9V 4.5A DC SMPS and external camera flash which requires 4xAA cells. To my surprise when flash is charging input current rises to 2.2A and voltage drops to about 2.5V. Is this normal?
I would like to the STM32F103 processor used external SPI flash memory for storing image for TFT LCD. I would like to SPI flash programmed along with the processor via the J-Link programmer (SWD) Can you advise how to do it
CPLD do not need external flash to store it image only FPGA need external flash.
Hi all. I am Automotive engineer working for BIZTeam company. I lost 10 minutes to find proper category for this question, if i made mistake, i apologize. --------- Here is problem We are working on Car Engine Computer, PSG16 (Opel 2.2DTI). ECU is on top of the Feul VP Pump, made on ceramic in BARE DIE packing. Inside we managed to
Feb. 25th, 2014, Embest Technology (a Premier Farnell company) launched SAMA5D3 Xplained evaluation kit. SAMA5D3 Xplained is a low-cost fast prototyping and evaluation platform built on Atmel?s SAMA5D3 ARM Cortex-A5 microprocessor. It comes with external memory and a rich set of interfaces such as 256MB DDR2, 256MB flash, 2 Ethernet physical-lay
A bootloader stores the program to be execute after power-on. To boot a computer means to load the program into a program memory(usual a read/write memory). To do this function a bootloader program does it after power-on. external hardware means that memory devices(like EEPROM/flash/ROM or a disc drive) are connected to the Arduino. I guess you are
I have worked with AT89S52 and used an external flash(ISP) programmer, only hing is At89s52 doesn't have internal ISP(in system programmable), hence we need to get external programmer while comparing to atmega8,as it has internal ISP. No consideration for crystal, if you want to work with 8051 architectured controller with ISP, I suggest (...)
Hi all, I am trying to interface my MSP430F5419A with M95-M02 (SPI based external EEPROM from ST micro). I don't have much experience in SPI. I have just followed few links on the web and trying to read and write the data. But I want to know the flow of code for this SPI IC first. I have pointed out the flow. Can you please tell me is it true ?
differenc between Memory mapped IO and Address mapped IO. Memory mapped IO uses the same address space for Memory and IO devices addressing. What I would like to ask is memory space inside the processor is dedicated for both Memory and IO access, Is my understaing correct? its not the external flash memory right? for IO mapped IO type separa
I need to store some user defined values. I'm wondering should i go with external EEPROM chip or dealing with the IAP and write in "user defined" portion of flash memory ?
Hi Everybody I am looking for a module (probably commercial one) as illustrated below, Does anybody know any product to do the desired operation??? I acquired nothing within the search in internet!... A module which 2 USB-based memories (like flash memories or external hard disks) could be connected to it in order to apply some seminal opera
Two sides to this story: if you have it in your device, why not use it? On the other hand, an external SPI ROM or some such would probably allow you to move to a smaller/cheaper FPGA. So if you plan to produce this thing in series, that might be a better option. In addition, SPI flash devices exist in a wide range of densities so that would scale w
.\obj\project.axf: Error: L6406E: No space in execution regions with .ANY selector matching main.o(.constdata). .\obj\project.axf: Error: L6407E: Sections of aggregate size 0xbb83c bytes could not fit into .ANY selector(s). Above error tell that your data array is too big, so not enough RAM. It's very simple to save an image in external memory (f
Hello, I'm working on 320x240 pixels TFT which has the SSD1963 controller. I have interfaced this with the microcontroller. Basically I have written a code to store the image in the external flash memory interfaced with the microcontroller & this stored image will be displayed on the TFT. I have provided a switch to read the image(.bmp format) f
It is far easier to use the internal eeprom or an external one
Hello Boarders, I need to implement an IAP (In application Programming) on a stm8 equipped board. The STM8 after receiving some specifics commands via uart must load his firmware from an external flash/Eeprom. Is there any way to implement this? Do you know some similar projects? Regards do Google to find the fi
I am currently addressing a 128Mbit flash using 24 address lines, 8 data lines, and 1 chip select line (the processor has 2 chip selects). What does the external logic look if I want to use a second chip select line to create a high address line? I want to use a 256Mbit flash. I tried it and facing some issue, Some one have any clue? (...)
How to program external NOR flash using ULINK2 tool and keil in lpc 1788 . Help me asap.
I would need to connect an external memory which is connected a dspic microcontroller via SPI protocol. I need a good tutorial about how is work the SPI protocol (for memories). Is anyone who can suggest me any tutorial????
Having a flash fabric - Actel is inherently non-volatile while SRAM based FPGAs (Altera/Xilinx/Lattice) must load from every power-up from an external flash. Both are programmed using a JTAG interface. flash based FPGA's are much less power hungry. They also seem to have the benefit of requiring less power supplies (of (...)
HI, I am using a ARM Cortex M3 LPC1754, with a GPRS based sim card. I m going to send the firmware to this device over GPRS. And store in its external 2MB flash from specific address location. After complete downloading I want t switch ch the boot location to this newly added firmware boot location by using it On-chip boot loader.
Hi all, I am initiate a new project, with 18F8722, greate PIC, I liked so much.... My intention, is use as microprocessor, but using then "extended mode" (Using too the internal flash memory). I just completed first part os project. RS232, Serial EPROM/RAM and Ethernet its all working vry fine. Now, In the second part of my project
Hi all, I'm struggling with a DSP, TMS320C6424. C6424 hasn't got an internal flash for program memory. I should use an external flash for programming. C6424 has 8-/16-Bit-Wide data flash memory interfaces for NAND and NOR flashes.(Up to 128M-byte address reach) Should I select NAND or NOR (...)
I'm not sure why you find it strange. The point of the flash is to store the program of the microcontroller so that it is maintained after the mcu is powered down. What would the alternative be, to load the program from an external eeprom?
I will need to connect a flash memory (a25l010) with dspic33 via spi. I tried to modify the following code but I will need advice how to do it? the code which i used is presented bellow : #include // I/O definitions #define CSEE _RB12 // select line for Serial EEPROM #define TCSEE _TRISB12 // tris control for CSE
Hi, I am using EM357 controller which has inbuilt ARM3 cortex processor. I observed problem while writing on internal flash of EM357 through bootloader application from external flash. Investigating it further it is observed that this problem observed below supply voltage of 3.1V & above 3.1V there is no such problem.Minimumm (...)
What is the typical size of the FPGA bit file which needs to be stored? Depending on the typical size, you may have implement additional external storage. I believe the Silab C8051F060 has 64KB of flash, how much of it is available? BigDog
NXP Provide this documents about flash based non-volatile storage. i think external I2C/SPI EEPROM is better than flash based storage.
Hello friends, I am doing a project around stm32f103, where i need to load the hex file from remote server using wifi module. What i did is, my device had less RAM so i connected an external SRAM so that i can dump the incoming hex file(size =60k) directly to the external sram and than to SD card later to the flash. But i (...)
Hello, is it possible to prevent third parties from accessing an external nand-flash were the firmware resides, encryption or some other ic in between? the mcu i have to use is sam9x25 from atmel
Hello! EEPROM or whatever external flash can store whatever you feed to it. You can even create a file system on one flash chip and make your PC believe it's an external USB memory. Well, you cannot do this with 8051, I guess. But at least you can program your external memory. Dora.
Microchip have a product selector tool for their MCUs do you require USB device (you can connect to a host such as a PC) or USB host (you can plug in a USB flash drive or similar device)? a simple way to add WiFi is to use an external device such as an XPORT Matchport which connec
The equation looks sound to me, although Vector rate (Ftck/bits in chain) will be approximate (actually lower) as most systems have some 'housekeeping clocks' used between patter/vector shifts and update. 'scans per write' will depend on whether you can use an external write strobe (AutoWrite) - mostly only on high end controllers so your fig
I don't think it will be an easy task to modify the flash from your code during runtime. You should consider using an external eeprom or flash to store the data.
Divide time for that or parallel pic16f877a needed with a external sync timer look it