ImageCraft ICCAVR compile error in eeprom.h

Started by Scott Kelley in comp.arch.embedded14 years ago 1 reply

using: ImageCraft IDE v6.31 - ATMega64 One of the standard include files is "eeprom.h", included below. I am getting a compile error at the...

using: ImageCraft IDE v6.31 - ATMega64 One of the standard include files is "eeprom.h", included below. I am getting a compile error at the point marked with "#*#*". As you can see, this file does not include a test for ATMega64, so EEPROMwrite is not defined, which I assume is the problem. I'm getting into a realm that I don't understand. I need to know if either of the definitio...


OT, sorry, simple Windoze GUI

Started by martin griffith in comp.arch.embedded14 years ago 23 replies

I've got a little 8051 project, in C that does very simple things eg wait for Uart read ADC add offset from eeprom load DAC stuff a string...

I've got a little 8051 project, in C that does very simple things eg wait for Uart read ADC add offset from eeprom load DAC stuff a string into a LCD Nothing complicated. (I'm really an analogue guy at heart, just doing a bit of 8051 C when required) But I'm getting fed up with using windoze terminal or even procomm to set up some eeprom values. I've just loaded microsoft VB6 lea...


Help::::::::::Schematic of 28c64 interfacing with 8051

Started by Anonymous in comp.arch.embedded13 years ago

Hi, I have tried interfacing 28c64 with 8051 using 74ls573.. exact eeprom ic no. is D28c64c-25. First I wrote a simple program to write...

Hi, I have tried interfacing 28c64 with 8051 using 74ls573.. exact eeprom ic no. is D28c64c-25. First I wrote a simple program to write single byte in first location of eeprom by tying WR of 8051and WE of 28c64..I kept OE high.. And LE of 74ls573 to ground.. I have connected higher address A8 to A12 from port P2 directly to 28c64.. When I was tryi...


I2C Driver for DSP/BIOS

Started by ejkrohne in comp.arch.embedded10 years ago 1 reply

I've been in the embedded area for quite some time. I am currently running DSP/BIOS on a TI F2801. I am having trouble accessing an EEPROM over...

I've been in the embedded area for quite some time. I am currently running DSP/BIOS on a TI F2801. I am having trouble accessing an EEPROM over I2C. I saw a thread that mentioned a DSP/BIOS driver for I2C and was wondering if I could get the source to modify for my application. I need to be able to write and/or read n bytes to/from any address in the EEPROM. --------------...


Datalogger with Flash

Started by peres in comp.arch.embedded14 years ago 7 replies

Hi, I have a datalogger with an eeprom memory, and i want to upgrade it to a serial flash memory. the problem is that when the memory is full it...

Hi, I have a datalogger with an eeprom memory, and i want to upgrade it to a serial flash memory. the problem is that when the memory is full it will start writing at the begining of the memory, and thats ok with the eeprom, but with the flash i will have to erase the whole block, so that its not ok. the message that im writing its 16 Bytes Long. anyone can help me with that? Thank you! ...


Infineon EEPROM die

Started by linnix in comp.arch.embedded10 years ago 3 replies

Does anyone know how to get datasheet on this EEPROM die? Nothing show up on google or infineon. Perhaps datasheet for packaged version would...

Does anyone know how to get datasheet on this EEPROM die? Nothing show up on google or infineon. Perhaps datasheet for packaged version would help, or a different part number. Thanks. http://avnetexpress.avnet.com/store/em/EMController/Memory-Misc/Infineon-Technologies/SP00024564 9ZJ/_/R-8269916/A-8269916/An-0?action=part&catalogId=&langId=-1&storeId=500201


How to design non blocking device drivers?

Started by ssubbarayan in comp.arch.embedded11 years ago 10 replies

Hi all, I would like to understand how to design drivers in such a way that its non blocking? To be more specific,If suppose I have an...

Hi all, I would like to understand how to design drivers in such a way that its non blocking? To be more specific,If suppose I have an EEPROM device and two tasks are trying to write some data to the EEPROM device,generally what happens is,we will have a semaphore inside driver so that till one task completes using the device,the other task will be pending to complete the writing.Wha...


PIC 18f4550 and Hi-tech PRO compiler

Started by joolzg in comp.arch.embedded9 years ago

Right just started a little project using the 18f4550 for usb and wanted to save some data in the internal eeprom. Easy or so i thought, as i...

Right just started a little project using the 18f4550 for usb and wanted to save some data in the internal eeprom. Easy or so i thought, as i am using Hi-tech PRO 18 V9.63 PL3 i thought i would use th eeprom_read and eeprom_write commands. So to test i used MPLAB and put a message in the eeprom and checked my read routine, OK, and so as my checksum failed i tested the write routine and NOT...


PIC 16F877: ORG-ing EEPROM

Started by Michael in comp.arch.embedded14 years ago 8 replies

What memory location should the beginning (lowest address) of flash EEPROM be ORG'ed for the PIC16F877A? Maybe this info is located in a F87x...

What memory location should the beginning (lowest address) of flash EEPROM be ORG'ed for the PIC16F877A? Maybe this info is located in a F87x data sheet or the mid-range ref. manual but I haven't found it. There are copious references to EEADR, EEDATA, etc., but no example of ORG-ing in an ASM file. Microchip seems to have hidden this vital info. very well. IIRC, I discovered this info....


Please, suggest a SPI EEPROM programmer with SMD socket

Started by pozz in comp.arch.embedded7 years ago 1 reply

I have to purchase a serial EEPROM/Flash memories programmer (SPI, I2C) that usually supports also many other devices (PIC,...), even if it's...

I have to purchase a serial EEPROM/Flash memories programmer (SPI, I2C) that usually supports also many other devices (PIC,...), even if it's not a must. I'd like to have also a SMD socket/adapter for SOIC8 or similar packages. I don't have time to self-made a board or adapter. Please, suggest a product with the best performance/price ratio. Thank you.


LPC2138 I2C

Started by Frank van Eijkelenburg in comp.arch.embedded11 years ago 3 replies

Hi, I am still using the LPC2138 ;). Now I have a problem with I2C. When I try to send some bytes to an EEPROM device, the following...

Hi, I am still using the LPC2138 ;). Now I have a problem with I2C. When I try to send some bytes to an EEPROM device, the following happens: - I2C start condition is made - interrupt is generated - I2C address is sent - EEPROM device gives an ACK And now nothing happens. If I look at the I2C bus state, the microcontroller accepted the ACK. However, no new interrupt is given due to ...


What is your strategy to save non volatile data?

Started by pozz in comp.arch.embedded3 years ago 45 replies

Many times I work on embedded projects where it is required to save some data in a non volatile way. Usualy I use external (to the main...

Many times I work on embedded projects where it is required to save some data in a non volatile way. Usualy I use external (to the main microcontroller) serial/parallel EEPROM or internal Flash memory (with a software layer for EEPROM emulation). However my goal isn't to discuss the hw alternatives, but the data format and strategy. I know there are many serialization data format (X...


24C16A EEPROM programmer

Started by pozz in comp.arch.embedded1 year ago 1 reply

I have some 24C16A to program. I have a working 24C16A to clone. What is a fast and cheap way to proceed? I need a software and an hardware...

I have some 24C16A to program. I have a working 24C16A to clone. What is a fast and cheap way to proceed? I need a software and an hardware interface (USB to IIC or RS232 to IIC). I have a PicKit2, but I'm not sure if they can be used to program IIC EEPROM. If yes, what is the software to use? I could write a simple firmware for an MCU with IIC that connects to a PC (via RS232 or...


How to opena handle to "Cypress EZ-USB FX2 (68613) - EEPROM missing" and download a program to RAM

Started by Bill Davy in comp.arch.embedded12 years ago 18 replies

But NOT using EZ-USB which I suspect is messing my programme up. Perhaps it does not allow for the extra memory in the FX2LP. I have written...

But NOT using EZ-USB which I suspect is messing my programme up. Perhaps it does not allow for the extra memory in the FX2LP. I have written code to download a program (in hex or iic format) to RAM or EEPROM, but that was when the FX2 was running vend-ax (or our software, which is derived from it). I just need to get a file handle and then use some library functionto send 0xA0 command...


Looking for large serial EEPROM or FLASH like Atmel's DataFlash

Started by Tom in comp.arch.embedded15 years ago 7 replies

I'm looking for a large serial EEPROM or FLASH chip that comes in a small package and uses a serial interface. I need something in the range of...

I'm looking for a large serial EEPROM or FLASH chip that comes in a small package and uses a serial interface. I need something in the range of 1024 kbit - 2048 kbit in an 8-SOIC or smaller package, and it needs to be as cheap as possible. :) So far I've only found I2C EEPROMs like the 24C512, but these only seem to go up to 512 kbit or 1024 kbit, and they also get very expensive when y...


Storing data in flash: HCS12

Started by Bruce Varley in comp.arch.embedded8 years ago 6 replies

Hi, I'm planning an application on an HCS12 protoboard, it uses a relatively small amount of code, but needs a 'significant' amount of...

Hi, I'm planning an application on an HCS12 protoboard, it uses a relatively small amount of code, but needs a 'significant' amount of nonvolatile storage for data. My HCS12 has nominally 64K of flash plus 1K of EEPROM. It appears that normally the flash is used for program storage, and the EEPROM for nonvolatile static data. 1K for data isn't near enough in my case, but the combined cod...


Why write cycle time of EEPROM is high?

Started by Anonymous in comp.arch.embedded13 years ago 13 replies

I have seen the Write cylce time of EEPROM is in 'ms' ie., around 10ms. Why this time is so high while the RAM write cycle time is with in ...

I have seen the Write cylce time of EEPROM is in 'ms' ie., around 10ms. Why this time is so high while the RAM write cycle time is with in a clock cycle. -Muthu


FPGA configration Data/Firmware

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

Hi all I have no idea regarding low level hardware. I should firgure out something about ALTERA ACEX. Question is like following. 1.Are...

Hi all I have no idea regarding low level hardware. I should firgure out something about ALTERA ACEX. Question is like following. 1.Are the FPGA configuration data and the firmware different? 2.How can I extract FPGA configuration data from ALTERA ACEX to my PC? 3.How can I extract firmware in EEPROM to my PC? P.S What I want to do finally is extrating data from FPGA and EEPROM and ...


FT245BM problem: missing/corrupt data

Started by Anonymous in comp.arch.embedded14 years ago 21 replies

Hello, We are facing a corrupt/missing data problem with FT245BM: If the "pull down on USB suspend" option is enabled in EEPROM,...

Hello, We are facing a corrupt/missing data problem with FT245BM: If the "pull down on USB suspend" option is enabled in EEPROM, on startup, we get 126 bytes of garbage followed by the first byte from host. Subsequent bytes come across fine. If the "pull down on USB suspend" option is NOT enabled in EEPROM, the first byte from host is never received. Subsequent bytes come across fine....


Simtek NVRAM

Started by Geoffrey Mortimer in comp.arch.embedded15 years ago 2 replies

Hi Anyone had any experience with Simtek non-volatile RAM - the sort that writes all its data to (EEPROM?) in one hit when the supply falls...

Hi Anyone had any experience with Simtek non-volatile RAM - the sort that writes all its data to (EEPROM?) in one hit when the supply falls below a trigger level (type STK14CA8)? Cheers Geoff