TS-4900 NVRAM: Difference between revisions
From embeddedTS Manuals
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The RTC includes | The RTC includes 120 bytes of NVRAM which can be used for custom applications. The utility 'nvramctl' can be used to read/write the NVRAM. The source for this utility is available from our [https://github.com/embeddedTS/ts4900-utils/ ts4900-utils github]. | ||
The utility reads/writes a byte at a time, and returns the value in hex. | The utility reads/writes a byte at a time, and returns the value in hex. | ||
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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/ | * [https://github.com/embeddedTS/ts4900-utils/blob/master/src/nvram.c nvram.c] | ||
* [https://github.com/ | * [https://github.com/embeddedTS/ts4900-utils/blob/master/src/nvram.h nvram.h] | ||
Latest revision as of 12:14, 27 October 2022
The RTC includes 120 bytes of NVRAM which can be used for custom applications. The utility 'nvramctl' can be used to read/write the NVRAM. The source for this utility is available from our ts4900-utils github.
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: