feng jiantao
uniqueCPUID
Fork of
uniqueCPUID
by 
Joseph Ellsworth
uniqueCPUID.h@1:c7453c2b8a2f, 2016-03-11 (annotated)
- Committer:
- joeata2wh
- Date:
- Fri Mar 11 03:24:53 2016 +0000
- Revision:
- 1:c7453c2b8a2f
- Parent:
- 0:b9461291f915
- Child:
- 2:08766dc8051a
changing over to STM32 chips
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| joeata2wh | 0:b9461291f915 | 1 | /* |
| joeata2wh | 0:b9461291f915 | 2 | by Joseph Ellsworth CTO A2WH. |
| joeata2wh | 0:b9461291f915 | 3 | Freeuse for all. No promises, No warranty * |
| joeata2wh | 0:b9461291f915 | 4 | Please contact us http://a2wh.com for help with custom design projects. |
| joeata2wh | 0:b9461291f915 | 5 | |
| joeata2wh | 0:b9461291f915 | 6 | Most STM and Freescale ARM chips include a unique Serail Number embedded |
| joeata2wh | 0:b9461291f915 | 7 | in the CPU. This is a perfect number to use in IoT as a SSID. I use |
| joeata2wh | 0:b9461291f915 | 8 | this to produce the WIFi SID so I can walk up with a phone and download |
| joeata2wh | 0:b9461291f915 | 9 | telemetry. I found a blog discussion for mbed that suggested using the |
| joeata2wh | 0:b9461291f915 | 10 | MAC but this assumes mbed hardware whereas this version uses the serial |
| joeata2wh | 0:b9461291f915 | 11 | number built in to the CPU so it should work on native boards. |
| joeata2wh | 0:b9461291f915 | 12 | */ |
| joeata2wh | 0:b9461291f915 | 13 | |
| joeata2wh | 0:b9461291f915 | 14 | #ifndef uniqueCPUID_h |
| joeata2wh | 0:b9461291f915 | 15 | #define uniqueCPUID_h |
| joeata2wh | 0:b9461291f915 | 16 | #include "mbed.h" |
| joeata2wh | 0:b9461291f915 | 17 | |
| joeata2wh | 0:b9461291f915 | 18 | #define uniqueSerialAdd_kl_freescale (unsigned long *)0x40048058 |
| joeata2wh | 0:b9461291f915 | 19 | #define uniqueSerialAddr_stm32 (unsigned long *)0x1FFFF7E8 |
| joeata2wh | 0:b9461291f915 | 20 | |
| joeata2wh | 0:b9461291f915 | 21 | //TODO: Add logic to detect the different boards and select the correct |
| joeata2wh | 0:b9461291f915 | 22 | // CPU ID based on the active board. |
| joeata2wh | 1:c7453c2b8a2f | 23 | //#define uniqueSerialAddr uniqueSerialAdd_kl_freescale |
| joeata2wh | 1:c7453c2b8a2f | 24 | #define uniqueSerialAddr uniqueSerialAddr_stm32 |
| joeata2wh | 0:b9461291f915 | 25 | |
| joeata2wh | 0:b9461291f915 | 26 | // Change to enable for address for your chip family |
| joeata2wh | 0:b9461291f915 | 27 | // Note some ealry stm L3 chips were produced with all |
| joeata2wh | 0:b9461291f915 | 28 | // chip ID set to FFF. I have not seen any but did find |
| joeata2wh | 0:b9461291f915 | 29 | // it mentioned in a blog. |
| joeata2wh | 0:b9461291f915 | 30 | |
| joeata2wh | 0:b9461291f915 | 31 | |
| joeata2wh | 0:b9461291f915 | 32 | /* format the unique serial number as a string. we could use |
| joeata2wh | 0:b9461291f915 | 33 | as the router SID for Lot. Supress leading zeros to save |
| joeata2wh | 0:b9461291f915 | 34 | space */ |
| joeata2wh | 0:b9461291f915 | 35 | void getUniqueIDAsStr(char *destStr); |
| joeata2wh | 0:b9461291f915 | 36 | |
| joeata2wh | 0:b9461291f915 | 37 | /* Send unique device ID to serail port */ |
| joeata2wh | 0:b9461291f915 | 38 | void printUniqueId(Serial pc); |
| joeata2wh | 0:b9461291f915 | 39 | |
| joeata2wh | 0:b9461291f915 | 40 | #endif |