25LC Kbit SPI Bus Serial EEPROM The Microchip Technology Inc. 25AA/25LC *? Byte and Page-level Write Operations (25XX) is a 25LCI/SN Microchip Technology EEPROM k 64Kx8 V SER EE IND datasheet, inventory & pricing. 25LCI/SN from MICROCHIP >> Specification: EEPROM, Serial SPI, Kbit, 64K x 8bit, 20 MHz, SOIC, Technical Datasheet: 25LCI/SN Datasheet.
|Published (Last):||1 January 2008|
|PDF File Size:||19.87 Mb|
|ePub File Size:||1.15 Mb|
|Price:||Free* [*Free Regsitration Required]|
Previous 1 2 Next. Fri Jul 20, 8: Thank you for the reply Martin. The difficult part about SPI is that the standard is loose and each device implements it a little differently. Easy datwsheet even quite small capacitors.
Interfacing a Serial EEPROM Using SPI
It looks like they datsheet have done the heavy lifting for me in regard to setting up the clock and power. I think I 2lc512 use the match register to do this I just have to configure the PCLK to be system clock divided by 2 instead of 4. CCS does not monitor this forum on a regular basis. A register is just a byte of microcontroller memory that can be read from or written to. It’s memory is organized as pages of bytes each.
Send them to support ccsinfo. We add a line feed and a pause for readability. Like that upto 1FFF But i dont. The first step is setting up our pre-processor directives. I keep looking into it, but if you notice anything else or have any other suggestions please let me know. These modes control whether data is shifted in and out on the rising or falling edge of the data clock signal, and whether the clock is idle when high or low.
Hello Nick, here are some points, i have dwtasheet in your listing: The problem is that I’m not sure if my 25lc5122 are right or if my software is configured correctly. And the Program for my task is: We send the 16 bit address to begin writing at in two bytes, Most Significant Bit first. This function could easily be datashret to fill the array with data relevant to your application:.
Hey bro this worked like a charm for me. Note that the chip on the Arduino board contains an internal EEPROM, so follow this tutorial only if you need more space than it provides.
You are exactly right the delays actually only worked for sending and receiving 1 byte, when I recently tried multiple bytes and it doesn’t work. When the address increments to we turn it back to 0 because we have only filled addresses in the EEPROM with data:.
25LC – Memory – Memory
When doing a write of less than bytes the data in the rest of the page is refreshed along with the data bytes being written. I have checked it in Proteus. Is this correctly read? Opcodes are control commands:. From your comments i understand that the damage is caused on the individual bits actually being written Fri Jul 20, 9: Can you show what configuration parameter you are using?
Also, it is an analog scope, so it is hard to tell the frequency by counting the ticks when the time division can go high enough. When writing to the 25LC, all bytes in a page are refreshed even if fewer are written. Check if you have not a mixture.
The 25LC can operate between 2. Generally speaking there are three modes of transmission numbered 0 – 3. We will walk through the code in small sections.
Here darasheet what the read statement look like within the main while loop now: In the control register each bit sets a different functionality. The reason may just be the status bit that ksdoubleshooter kindly pointed out. It can also be used for communication between two microcontrollers.