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1 vote
1 answer
563 views

Programming a AT28C64B EEPROM using an STM32F429

EDIT: For those who tried to help or have found this question via google, I managed to solve this issue just by adding a 1uF ceramic bypass capacitor to the breadboard. Thanks for the answers. I'm ...
08d09's user avatar
  • 19
0 votes
2 answers
54 views

Programming I2C devices with NV EEPROM

Some I²C devices like the MCP4728 DAC have a small EEPROM allow programming the I²C address (and other configuration bits). I know that in high volume can be programmed by the vendor, but for low ...
KJ7LNW's user avatar
  • 2,088
4 votes
4 answers
1k views

Possible to buy Atmega328p with programmed Flash and EEPROM?

I've recently upgraded my old project that goes to mass production (a pair of thousand pieces, pretty niche). Previously I used DIP atmega328p, which were manually programmed in China. I sent them a ...
Ilya's user avatar
  • 3,613
2 votes
2 answers
586 views

Manual EEPROM Programming Problem

I have a 28c256-25 EEPROM that I have created a breadboard circuit to program. The datasheet says after the address is set and the data is put on the I/O pins, a low pulse on /WE while /OE and /CE are ...
Yigit_Yildirim's user avatar
-1 votes
2 answers
276 views

Recording servo movements using pic with CCS C

Here what I am trying to do is control servo motor with a pottentiometer and record its movement using analog to digital converter and than play. I started with just moving the servo. To see which ...
Anıl Kırıkkaya's user avatar
0 votes
1 answer
521 views

Reuse a S25FL256S SPI 32MB flash module even when it is possibility protected?

This is my weekend toy, a Spansion/Cypress fl256saif00 (S25FL256S), a 32MB SPI module. This chip is salvaged from a Cisco EPC3928 Docsis 3.0 Modem Router (2012). The (first) challenge was to be able ...
Codebeat's user avatar
  • 1,367
-1 votes
2 answers
290 views

Can I program a microcontroller by manually programming an EEPROM and then coyping the EEPROM contents to the microcontroller? [closed]

If so , what do I need to learn in order to do that? I know it is possible to manually program an EEPROM. But What I want to know is how I can transfer the date stored in a eeprom to the ...
Jardel B.'s user avatar
0 votes
3 answers
830 views

Can I read EEprom in circuit when connected to a SH7055 MCU?

I am trying to read a microwire 93C66 EEprom which is connected to a Hitachi SH7055 MCU. The device is a complete automotive ECU. I need to be able to do this in circuit. Currently I get an error ...
Newbie Noob's user avatar
1 vote
0 answers
186 views

Problems programming a 29GL256

I've been experimenting with Python scripts and using an Teensy 2.0 ++ to program different flash memories. So far I've found a script to program a 29GL128, which works perfectly, but I'm trying to ...
mikerakesh's user avatar
3 votes
1 answer
292 views

How are system configuration flash or eeprom chips programmed?

I've seen, quite often actually, a circuit that will have an eeprom or flash chip soldered next to the application chip. Take a look at the ESP8266, it has some kind of programmable memory that sets ...
Funkyguy's user avatar
  • 3,598
11 votes
2 answers
2k views

Inbuilt flash memory size not enough

I am using TM4C1230C3PMI controller from Texas instrument in one of my project. It has 32KB of internal flash, which is not sufficient for my application. Higher flash sized micro-controller are ...
Sanjeev Kumar's user avatar
0 votes
1 answer
720 views

Programming an EPROM using 8085 kit

I need to program an EPROM/EEPROM with the code for an 8085. I do not have a programmer. I can't buy one. But I have access to an 8085 kit. Can I use it to program the EPROM/EEPROM via an interface? ...
Mobius's user avatar
  • 3
0 votes
1 answer
586 views

How do I determine what microcontroller is the right one for my project? [closed]

I have just started developing a tiny GPS trackingdevice that (eventually) will be able to log positioning-data on demand - via SMS commands and/or via a smartphone-application. The device should be ...
CustomCase's user avatar
1 vote
1 answer
3k views

Pointer Size using eeprom.h with ATmega328p in AVR-GCC

I am working on a project that randomly reads and writes large blocks of data from EEPROM, based on user input. I have used the EEPROM before, but I never really thought about this. In the operations ...
Kurt E. Clothier's user avatar