Writing data to flash?

Patrick Sparks

Is there a simple way to write data to flash memory and retrieve it? We are reading a transducer, calculating some numbers from the readings, and we want to store some of the calculated results for later analysis (after the run).

We expect to write records of four floating point numbers, about every 0.25 seconds on average, for a total of about 600 to 1200 records. After the run, we want to get these data records and look at them.

Any suggestions would be appreciated! (We are new at this).

over 15 years ago

0 Lori Heustess over 15 years ago

TI__Guru* 92000 points

Patrick Sparks said:

Is there a simple way to write data to flash memory and retrieve it? We are reading a transducer, calculating some numbers from the readings, and we want to store some of the calculated results for later analysis (after the run).

We expect to write records of four floating point numbers, about every 0.25 seconds on average, for a total of about 600 to 1200 records. After the run, we want to get these data records and look at them.

Any suggestions would be appreciated! (We are new at this).

The 28x flash can be written to using the flash API. It can be read just like any other memory. Note the flash itself is not available when you are programming so the current application must be executing from RAM or external memory (XINTF) when this occurs.

There is an application note you may find helpful called EEPROM emulation with the TMS320F28x

www.ti.com/lit/sprab69

And associated code: www.ti.com/lit/zip/sprab69

Other flash frequently asked questions can be found on the TI wiki:

http://processors.wiki.ti.com/index.php/C2000_Flash_Common_Issues/FAQs

Cheers

Lori