TS-4900 NVRAM: Difference between revisions
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(Created page with "The RTC includes 128 bytes of NVRAM which can be used for custom applications. There is a utility, nvramctl which can be used to read/write the NVRAM. [https://github.com/em...") |
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The NVRAM code can be included in your application by using these two files: | The NVRAM code can be included in your application by using these two files: | ||
* [https://github.com/embeddedarm/ts4900-utils/blob/master/src/nvram.c] | * [https://github.com/embeddedarm/ts4900-utils/blob/master/src/nvram.c nvram.c] | ||
* [https://github.com/embeddedarm/ts4900-utils/blob/master/src/nvram.h] | * [https://github.com/embeddedarm/ts4900-utils/blob/master/src/nvram.h nvram.h] | ||
Revision as of 14:41, 31 July 2014
The RTC includes 128 bytes of NVRAM which can be used for custom applications. There is a utility, nvramctl which can be used to read/write the NVRAM.
This code can be included in your c/c++ application, or compiled as a standalone utility for access through other languages. The utility reads/writes a byte at a time, and returns the value in hex.
nvramctl --addr 10 --set 0x40
nvramctl --addr 10 --get
# Returns "nvram10=0x40".
# This can also be used with eval
eval $(nvramctl --addr 10 --get)
echo $nvram10
# Returns "0x40"
The NVRAM code can be included in your application by using these two files: