1000 Threads found on edaboard.com: Fat Read Write
I'm not sure if this has been asked before. I've tried interfacing a SD Card to a microcontroller with a very fast read/write cycle (i'm writing data every second). After days of continuous run, I noticed that the performance degrades. My question is, is fat the only available format for writing to SD Cards using a (...)
Microcontrollers :: 12-04-2012 08:21 :: ryan_13 :: Replies: 0 :: Views: 179
hii to all,
i want to read/write bytes on SD card in simple way (fat format is optional).
Anybody who successfully interfaced SD card with 8051 architecture please share his code or any useful related link (if any).
their are several example based on AVR and PIC microcontroller on internet but they are not useful for me. i required (...)
Microcontrollers :: 06-16-2014 06:45 :: drbizzarow :: Replies: 6 :: Views: 247
How to read/write Siemens SDE(a)2506EEPROM With IC-Prog or Ponyprog Propic2 Programmer or JDM Programmer
Can you help me?
Hobby Circuits and Small Projects Problems :: 02-03-2003 02:24 :: mbyka :: Replies: 5 :: Views: 3001
I need to read/write on a syncronous data bus. Is there some one that develop it for pci interface ?? If possibile using the quick logic components.
Professional Hardware and Electronics Design :: 06-28-2003 13:11 :: :: Replies: 6 :: Views: 1677
I need a person that is able to develop on quick logic pci core. I need a little interface to read/write on a syncronous 8bits data bus
Who can help me?
EDA Jobs :: 06-30-2003 04:35 :: kikkus :: Replies: 1 :: Views: 1816
I'm trying to read/wtite to sle4428 EEPROM Smart Card. please if any one have a source/sample code or any help for that just tell me.
PC Programming and Interfacing :: 10-19-2003 07:07 :: ahbadawy :: Replies: 9 :: Views: 5078
How to read/write a text from/to a file for Quartus II ver 4?
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-14-2004 02:48 :: k_cheng_aun2000 :: Replies: 5 :: Views: 1516
I need a C code snippet for E2PROM read/write 1 byte in PSoC CY8C26443 chip. I've tried the C examples in the E2PROM datasheet with a lot of compilation errors.
Sorry but i'm a beginner in using PSoC Families.
Microcontrollers :: 08-30-2004 09:34 :: Bus Master :: Replies: 1 :: Views: 1696
I want to use MPU read/write data from/to SD Card. But I don't kno how can i do? If you know as same as the project? Please help me. Thank you.
Microcontrollers :: 09-24-2004 22:19 :: amazonite :: Replies: 7 :: Views: 13963
I am wrating code for read/write Multimedia card (MMC), I use paralel port first before I use microcontroller. I already use converter 3.3volt to 5volt and 5volt to 3.3volt. when I do initialize, there is no response from MMC. The MISO (Master Input Slave Output) pin on tri-state all time. Is there anyone have done (...)
Microcontrollers :: 12-06-2004 20:00 :: SISWANTO :: Replies: 4 :: Views: 1249
I have a coldfire board. it has a MCF5206FT33A and has conectors for:
memory expansion, i/o expansion
and some reference like PCB#50-02996-01
and a "coldfire programer" connector. Hoy can I read/write soft on the internal flash memory? any free debuger?
Microcontrollers :: 06-03-2005 06:30 :: tapa :: Replies: 1 :: Views: 854
Can I say that flash memory is a read/write Memory?
Electronic Elementary Questions :: 09-22-2005 23:31 :: onemilimeter :: Replies: 4 :: Views: 1584
I want flash memory program to read/write. Micro MSP430F427, Using C. From the beginning
Microcontrollers :: 07-27-2006 01:28 :: london :: Replies: 0 :: Views: 492
I want to generate burst read/write, used STMIA/LDMIA, but arm always generate single write/read, can anybody tell me how to config ARM?
ASIC Design Methodologies and Tools (Digital) :: 08-31-2006 02:48 :: hgz :: Replies: 2 :: Views: 2111
in my memory,the read and write pointers used in FIFO are sequential data which are always implemented with counters.
but someone said generally a FIFO is addressed with LFSR(linear feedback shift register) or Gray code read/write pointers.
my questions the address of FIFO must (...)
ASIC Design Methodologies and Tools (Digital) :: 09-29-2006 00:44 :: sevid :: Replies: 13 :: Views: 2196
I currently use verilogA (in cadence 2006) to simulate a component with non static internal variable that I'd like to load/store (read/write from/to a file) corresponding to its instance (number or name, like I0,I1...), since the same component is replicated many times, I don't know if it's possible to write some verilog A code and how to (...)
Software Problems, Hints and Reviews :: 10-17-2006 07:09 :: CadenceUser888 :: Replies: 2 :: Views: 3531
I have study 6T-SRAM but quite confuse right now. Can anyone give an intuitive description about 6T-SRAM. Please descrive how it can store data and its read/write operation.
many thanks in advance.
ASIC Design Methodologies and Tools (Digital) :: 01-29-2007 22:46 :: electronics_sky :: Replies: 2 :: Views: 2518
Please, if someone knows how to get it.
It should run on a PC and read / write a buffer to/from a USB HID element.
Keil has such a tool but it only R/W a single byte.
PC Programming and Interfacing :: 02-12-2007 02:31 :: sam_pr :: Replies: 1 :: Views: 2624
Can someone point me out how I can read/write to the following blockram RAM model ?
I can read and write to external SRAM, but I am not able to make this work using blockram. Could someone help?
ENTITY vram8k IS
data : IN STD_LOGIC_VECTOR (7 DOWNTO 0);
rdaddress : IN STD_LOGIC_VECTOR (12 (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 04-05-2008 17:52 :: RRRED :: Replies: 3 :: Views: 807
I AM USING V850ES/JJ3 MC ,HOW TO write THE FLASH read/write FUNCTIONS FOR THIS MC.WHAT ARE THE NECESSARY STEPS NEEDED.WE ARE EXECUTING THESE PROGRAM THROUGH IECUBE EMULATOR.WHAT IS THE PROCEDURE FOR EXECUTING FLASH read/write ON EMULATOR?
Microcontrollers :: 05-09-2008 08:23 :: sayimpu :: Replies: 0 :: Views: 658
Does anyone have a link or a file that give an example of an asynchronous memory read/write cycle and its analysis. I have done one but I would feel more comfortable looking through an example too.
ASIC Design Methodologies and Tools (Digital) :: 09-30-2008 11:10 :: aincze :: Replies: 1 :: Views: 805
I am working on a project in which I need to store my data in Intel strataflash memory. (FYI: I am using Xilinx Spartan 3e Stater kit). My verilog code performs the following operations in a sequence.
Block Erase -> Byte program -> Status register check -> read byte (same address)
But It looks like It is not writing at all. b
PLD, SPLD, GAL, CPLD, FPGA Design :: 11-02-2008 19:22 :: rishiric :: Replies: 3 :: Views: 2467
I want to find a SRAM, which can support burst read/write
It'd better has a last burst input signal, which means the last symbols when burst transactions.
if a rom can support burst read and has the last burst signal, it is ok too,
ASIC Design Methodologies and Tools (Digital) :: 03-09-2009 02:36 :: tarkyss :: Replies: 2 :: Views: 819
i need an external memory with infinity read/write cycles to connect the AVR microcontroller to update valuable data ..
any part number ?
the size is not important .
Microcontrollers :: 07-24-2009 05:11 :: segmex :: Replies: 14 :: Views: 1576
how to write function in VHDL to read/write from/to file. am using resolved logic type for signals. so its not possible to use use IEEE.std_logic_textio.all;
plz guide me..
PLD, SPLD, GAL, CPLD, FPGA Design :: 01-05-2010 21:58 :: rajakash :: Replies: 0 :: Views: 804
I am trying to read/write config registers in cc1100 as a first step to make RF communication but without success. Using ATmega8515 and code almost identical to this in next link but for AVR , not for PIC like in this example.
After reset I read the folowing config registers which are not default valu
Microcontrollers :: 12-18-2010 17:11 :: Gigica :: Replies: 1 :: Views: 1084
Hi edaborder... i need help.
I need schematic programmer to read-write SAB-517A-LN.
Please help me...
Microcontrollers :: 12-21-2010 12:13 :: dimas_lilik :: Replies: 1 :: Views: 363
I downloaded a processor code from opencores and it has fsl ports. But I really dont know how to write a c code to read/write to the fsl port.
This is an example of a C code:
void main ()
int i, z;
z = 0;
for (i=0; i < 10; i+1)
z = z + 1;
I want to put the value of z int
PC Programming and Interfacing :: 03-25-2011 11:36 :: soloktanjung :: Replies: 0 :: Views: 615
what is read/write collision on dualram?
how can it be handled?
why reading and writing from same location is not possible?....
(we can get either old value or new value....knw?)
PLD, SPLD, GAL, CPLD, FPGA Design :: 03-29-2011 22:40 :: dll_fpga :: Replies: 1 :: Views: 385
hi 2 ALL
i am using following code for read write 24c128 it works ok if i read write 1 BYTE or 2 BYTE........
but if i read or write about 200 bytes contineus some of the data being currupt. In case of write some of the data are save courrupted. If i (...)
Microcontrollers :: 04-07-2011 14:08 :: drbizzarow :: Replies: 0 :: Views: 693
Tutorial Microcontroller MCS-51 ATMEL ISP
i m using your isp programmer.
its working. but after sometime i used it its giving me error.even that the initialize target is going fine.
the device is read/write locked.
i used 12 mhz crystal.
Electronic Elementary Questions :: 05-10-2011 02:58 :: yasir23 :: Replies: 3 :: Views: 537
I try read/write data in frames in Virtex-5 FPGA using C language, so I use the PowerPC440 integrated whithin the FPGA and the ICAP. some one can help me
Microcontrollers :: 09-29-2011 05:20 :: lahrach :: Replies: 0 :: Views: 289
I need a running C language code for eeprom read write but it should not contain any internal registers of 8051 as i have to modify it for msp430.
---------- Post added at 22:16 ---------- Previous post was at 22:14 ----------
I'm using AT25320 EEPROM which is SPI.
Electronic Elementary Questions :: 10-18-2011 13:16 :: adnansarwar2050 :: Replies: 0 :: Views: 458
I am looking to design and create a OKI Semiconductor In Circuit Programmer to do a Memory Dump.
The Device I am looking to read, write, and Erase to is an OKI - L66Q592 It is a 144pin LQFP
Need to Develop a Programmer that will allow me to read, write erase to the Program memory, EEPROM, Internal and External (...)
EDA Jobs :: 10-25-2011 00:39 :: XtremeTuningSolutions :: Replies: 0 :: Views: 585
I have to write a simple RAM acess(read/write) for ARM cortex M3 core. I need this for my test environment
I think it should be very simple.I come from VLSI baground - I need a quick start on this ..
Does any one give me some example code or links for example code.
Microcontrollers :: 11-11-2011 04:18 :: otis :: Replies: 0 :: Views: 252
how many read/write cycles are needed(per bit) to test a 4*4 RAM.
ASIC Design Methodologies and Tools (Digital) :: 02-10-2012 05:41 :: vivek kumar gupta :: Replies: 1 :: Views: 360
hello everyone... i am having a problem with my parallax read/write failed to communicate with my rfid tag.. which in other word.. it does read my rfid tags... but when i try to swipe the tag to other rfid (other brand) the unique has been read....??? and when i interface it with arduino duemilanove atmeg328... the led (...)
Analog Circuit Design :: 02-20-2012 06:44 :: jemily :: Replies: 2 :: Views: 678
COMPONENT some_component is
read : OUT std_logic ;
write : OUT std_logic ;
What is the purpose of "read" and "write" keywords is VHDL ?
How are they used ?
PLD, SPLD, GAL, CPLD, FPGA Design :: 06-18-2012 04:41 :: shaiko :: Replies: 6 :: Views: 761
I'm trying to do some read
strings to/from eeprom but mostly unsuccessfully.
Here is code:
void delay1ms(unsigned int count);
void _nop(unsigned int count);
void write_iic(unsigned char Data);
unsigned char (...)
Microcontrollers :: 07-28-2012 10:33 :: bitsurfer :: Replies: 1 :: Views: 630
I am using dsPIC30F6014A controller and I am trying to write a driver program to read/write the port pins. I am using C30 compiler. Since this controller has A,B,C,D,F,G ports I am writing a value to each port and trying to read the value written using functions for read/write (...)
Microcontrollers :: 09-11-2012 02:40 :: swapna u :: Replies: 3 :: Views: 402
im using ml605 board virtex 6 fpga .... im connecting mb to external ddr3 sdram(512 MB) using edk ... wen i run memory tests in sdk, the status is success !! ... but wen i try to access any address of ext memory (read/write), i get only 0x00000000 as output ... i can understand tht the hw configuration for ext memory is correct, bt in sw i h
PLD, SPLD, GAL, CPLD, FPGA Design :: 02-18-2013 12:55 :: san_2190 :: Replies: 0 :: Views: 228
I am FPGA (VHDL) designer but for a specific project I need to compare my results with AT and TI controller.
Kindly provide me
Memory and I/O read/write (8/16 and 32 bit) data access latency for OMAP (4 or 5) and Atmel UC3 Micro-controllers.
I am not familiar with OMAP and Atemel tool chains. Can we get average clock cycles for pro
Microcontrollers :: 03-17-2013 15:25 :: thussain :: Replies: 0 :: Views: 195
Can anyone explain the relationship between the operating frequency and the read/write access time in sram.
- - - Updated - - -
find some answer from a manual and share the answer with guys here. but still have some question about this. Why access time can be larger/equal to the cycle ti
Analog IC Design and Layout :: 08-28-2013 00:05 :: onion2014 :: Replies: 1 :: Views: 536
Please bear with me. I've to toggle a pin every 125 milliseconds and every minute I've to update the eeprom with a value after comparing with the previous value. For measuring time I'm using Timer 0 and it's ISR. Every minute I've to display the eeprom value in an LCD. My PROBLEM is that for the 1 second period the toggling is working fine, but dur
Microcontrollers :: 01-31-2014 01:33 :: richardlaishram :: Replies: 1 :: Views: 218
I implement an xps system by using the Bus PLB. My IP core is added to the system using Create or Import Peripheral...
I want to know how can Microblaze write several data to DDR2 SDRAM and how the IP core read all the data from this memory, modify it and write it back to DDR2 SDRAM via the PLB Bus interface.
PLD, SPLD, GAL, CPLD, FPGA Design :: 03-18-2014 05:57 :: Makni :: Replies: 2 :: Views: 408
How can I read write a byte from input output port located at some address? please help me with some examples
Microcontrollers :: 04-22-2014 13:12 :: john2020 :: Replies: 5 :: Views: 322
pls can you help me for ibutton read write RW1990 softwear
Electronic Elementary Questions :: 05-24-2014 18:53 :: konline :: Replies: 0 :: Views: 262
i want to connect Compact Flash to a FPGA (SpartanIIE). , read & write, without fat configuration.
read & write only for storage big DATA.
can anybody help me ?
(i want VHDL code :idea:)
PLD, SPLD, GAL, CPLD, FPGA Design :: 06-09-2008 03:21 :: eelinker :: Replies: 7 :: Views: 2982
It depends on how you want to use the SD card. If you want to do a raw read / raw write, then
you can do it almost directly without file system (i.e. you just have to initialize the SD card
properly and then access it by 512 bytes blocks. But you have to care of all the data management
yourself (i.e. if you use icons, then you have to
Microcontrollers :: 04-02-2012 00:50 :: doraemon :: Replies: 18 :: Views: 1701
I stopped intensive programming for more hardware/hdl quite a time ago
but the same problem as yours bring me back to software matters
from time to time (Thanks Bill G. :x ).
I have also new hardware that I want to degug or control under
NT/W2K/XP or in-house applications that I would like to keep working
with previously made har
PC Programming and Interfacing :: 01-14-2003 03:48 :: Santa :: Replies: 13 :: Views: 4798