Updating non-volatile memory (nvm), An example of how to change the mac address, Updating non-volatile memory (nvm) -3 – Freescale Semiconductor 802.15.4 User Manual
Page 15: An example of how to change the mac address -3, 1 an example of how to change the mac address
Freescale Semiconductor Embedded Bootloader Reference Manual, Rev. 0.0
2-3
7. Remove short from UART TX and RX and connect UART cable again (if the RS232 UART interface
is used)
8. Power up again
9. Embedded Bootloader is ready to receive new firmware (all LEDs on)
10. Start the PC-Tool. See
, for more information.
NOTE
The Safe Mode Boot description is only valid for the Freescale ported
versions of the Embedded Bootloader. Refer to the 802.15.4 Embedded
Bootloader Reference Manual, 802154EBRM/D, for more details about a
specific port of the Embedded Bootloader.
2.2 Updating Non-volatile Memory (NVM)
The following steps show how to update the NVM data from an application (code).
1. The Embedded Bootloader must be present on the board.
NOTE
All EVBs are shipped with the Embedded Bootloader pre-programmed
in flash. The Embedded Bootloader can only be erased/programmed with
a BDM debugger.
2.
Call the Update_NV_RAM() function. This function can change any NVM data.
2.2.1 An Example of How to Change the MAC Address
The following code shows an example of how to change the MAC address.
Update_NV_RAM(&(NV_RAM_ptr->MAC_Address)[0], &pPacket[DATA_INDEX], 8);
NOTE
pPacket – contains the new MAC address.
Any NVM data can in code be read as a normal construct. For example,
use the NV_RAM_ptr to get access to individual data.