Tagged Questions

1
vote
5answers
278 views

Does reset do the same thing as shutting off the power to this device and turning it back on?

I am trying to control a serial dataflash memory through an mbed. It is an AT45DB021B and the datasheet is here. It has a reset pin that I have wired to the mbed so that a software reset can be done. ...
0
votes
1answer
134 views

How to write data to this dataflash memory

I'm trying to write data to a W25P80 dataflash memory using an mbed. The documentation says there is a read data instruction for reading data from a section of memory by sending the opcode 03h ...
2
votes
1answer
979 views

How to read the device ID of a dataflash memory

I am trying to read the device ID of a serial flash memory by using the SPI connections on an mbed. In the datasheet for the serial flash memory W25Q80 there is this figure. The following is the ...
0
votes
3answers
212 views

This flash memory works without connection to a power source or gnd?

I am doing a project where I need to store information into flash memory and read it back using an mbed. I can't get it to work right, but I noticed that even if there is no connection to power or ...