hi everyone, I am working on a project which has a 6802 processor and standard ram and eeprom (not decided which bands yet). I wonder If I...

hi everyone, I am working on a project which has a 6802 processor and standard ram and eeprom (not decided which bands yet). I wonder If I can write sofware for 6802 in PC and can send it with rs232 port to eeprom.

Ok, yes this is school work, but I'm handing tomorrow and I'm beyond doing any more work on it. So it does not matter any more but the problem...

Ok, yes this is school work, but I'm handing tomorrow and I'm beyond doing any more work on it. So it does not matter any more but the problem is still bugging me. We were given a logic problem, we were only asked to use standard HC HCT Gates (NAND's NOR's Inverters). I also did a EEPROM solution, it's a five input one output function so the EEPROM was programmed with all 32 possible...

A customer of mine recently changed from using AT90S8515 to ATMega8515 as the former is obsolete. We've had a couple of units in the field lose...

A customer of mine recently changed from using AT90S8515 to ATMega8515 as the former is obsolete. We've had a couple of units in the field lose eeprom data - we're still waiting to get them back to look further but has anyone else seen anything like this ?

Hello, I have couple of those MCU's that I would like to read and program... Is there any cheap programmer that handle those ? Jtag maybe and...

Hello, I have couple of those MCU's that I would like to read and program... Is there any cheap programmer that handle those ? Jtag maybe and some application that can read/write eeprom on this mcu ? I know that there is P&E Microcomputer Systems - Cyclone for Renesas But this price for a hobbyist is to expensive. Thank's for all the help. -------------------------------...

Hello i was looking at using a atmel 8515 or a pic (not sure which variant yet) for a project. The microcontroller will be connected to a...

Hello i was looking at using a atmel 8515 or a pic (not sure which variant yet) for a project. The microcontroller will be connected to a max186 for analog aquisitions which will be stored in an eeprom, also looking at a keypad ,lcd,x10 and serial pc interface to configure the unit and download data from the eeprom.. one of my concerns on the 8515 is the price @10$ but i can use gcc, i ...

Hi, Anybody come across continous background checksum tests on eeprom?? Is it worth doing ??

Hi, Anybody come across continous background checksum tests on eeprom?? Is it worth doing ??

Hi.. Im new to embedded systems, iv started with the 89c51 uC. Ive never used a parallel eeprom with the 89c51, thought iv used a serial...

Hi.. Im new to embedded systems, iv started with the 89c51 uC. Ive never used a parallel eeprom with the 89c51, thought iv used a serial one with the i2c protocol (and had a tough time in getting the thing to work, using sdcc :-( ). My question is..can only a parallel eeprom be used to extend the RAM?? seems logical, or else how would the uC generate the address on its own?? Also, ca...

Hi,=20 We have a fully functional system but saw twice so far (in 100+ samples) th= at the values in the EEPROM sometimes seem to be messed...

Hi,=20 We have a fully functional system but saw twice so far (in 100+ samples) th= at the values in the EEPROM sometimes seem to be messed up. We suspect that= this is happening after powering on & powering off the system a few times = repeatedly but have been unable to reproduce the issue so far. Does anyone = have a clue what this might be? Would it be safer to store the data in Flas= ...

Hi! I'm trying to write a serial number to a Cypress FX2 EEPROM. I have used the hex2bix method, and it worked great. But my new method...

Hi! I'm trying to write a serial number to a Cypress FX2 EEPROM. I have used the hex2bix method, and it worked great. But my new method is to edit the binary file from the hex2bix, alter the serial number, and upload the new binary file to the FX2 EEPROM. I can find the serial number okay, and can alter it. But when writing to the USB device, nothing seems to happen. I have to re...

Hi to all. I can't seem to get the eeprom emulation on a mc9s12C32 to work. I have the App note AN2303/D and associated files from Freescale...

Hi to all. I can't seem to get the eeprom emulation on a mc9s12C32 to work. I have the App note AN2303/D and associated files from Freescale website , but I am still struggling. I am new to this processor and have never done anything like this before , so excuse me if I am being a bit of a "dumbo" :0( I have created a basic project using the "Processor Expert" function. Xtal freq is 1...

I'm new to C and am trying to write a byte to the internal EEPROM in a 18F45k20. I've done this in the past using assembly but now I'm...

I'm new to C and am trying to write a byte to the internal EEPROM in a 18F45k20. I've done this in the past using assembly but now I'm working in C I figure there should be a function for doing this. I've found reference to write_b_eep and read_b_eep on the net but cannot see any reference to these in the MPLAB C18 Compiler Libraries documentation. What is the way to approach this? ...

I need to find a serial eeprom/flash chip with at least 2Mbit memory. Preferably I2C but any serial 3/2 wire system is OK as long as it can be run...

I need to find a serial eeprom/flash chip with at least 2Mbit memory. Preferably I2C but any serial 3/2 wire system is OK as long as it can be run on low speed (~100khz). I have found several memories but all of them are surface mount models, and I need a DIP8. Small quantity order. Any ideas? Thanks!

I was wondering if anyone has experience with EEPROM endurence on Atmel AVR parts. I have a controller project that requires a real-time...

I was wondering if anyone has experience with EEPROM endurence on Atmel AVR parts. I have a controller project that requires a real-time clock that I originally planned to implement via a DS1320+supercap. However, I recently found a prebuilt board that does 90% of what I want but does not include a battery/cap backup RTC. I can use one of the AVR timers to generate an accurate clock while i...

hi, when i read rtl8139 driver's source, there's a macro like this: #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ the comment say it is a...

hi, when i read rtl8139 driver's source, there's a macro like this: #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ the comment say it is a eeprom shift clock. can any one tell me what is shift clock.and what it is used to do?

Hi, I want to store 16x16 font image in EEProm. My MCU Rom size is 512. So the total number of fonts stored is 512*8/16/16=16. Do anyone know...

Hi, I want to store 16x16 font image in EEProm. My MCU Rom size is 512. So the total number of fonts stored is 512*8/16/16=16. Do anyone know if there exist font compression algorithm in the world which can compress one font in the eeprom so that I can get more fonts. Thanks!

Hi there, I've got a little question. Im using the BM29F400 Flash Memory EEPROM by BRIGHT Microelectronics Inc with a C164CI microcontroller...

Hi there, I've got a little question. Im using the BM29F400 Flash Memory EEPROM by BRIGHT Microelectronics Inc with a C164CI microcontroller (Infineon). After the command sequence for erasing a sector the following code is executed: check_erase: MOV R3,[R2] AND R3,#0080H CMP R3,#0080H JMPR CC_NZ,check_erase...

Hi, i am looking for a micro basically for data acquistion. I need two 8 bit pulse accumulators, 3 a2d channels and 128 KB of Non Volatile...

Hi, i am looking for a micro basically for data acquistion. I need two 8 bit pulse accumulators, 3 a2d channels and 128 KB of Non Volatile Memory ( preferably EEPROM). The code size will too small.(say 2KB) i was thinking of using a PIC micro with SPI to connect with an external EEPROM. Let me know if there are any micros for such applications. ( I basically want to do away with external...

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...

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...

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...