Freescale Semiconductor 802.15.4 - Manual (Page 13)

Freescale Semiconductor Embedded Bootloader Reference Manual, Rev. 0.0 2-1
Chapter 2
Using the Embedded Bootloader
This chapter describes the Embedded Bootloader functionality. A detailed description of the functions
briefly mentioned in this chapter can be found in
Chapter 7 .
2.1 Upload Firmware
The Embedded Bootloader can be used in different system configurations depending on the PCB and the
application. The application should have a user interface feature that makes it possible for the application
to call the Enable_Download_Firmware() function:
The application can optionally call the Hard_Reset() function to perform a reset, or the board can be reset
manually. The board will now start up in Embedded Bootloader mode.
Start the PC-Tool. See Chapter 3 for more information.
2.1.1 Use Case One
In this case, users send a specific command via the UART to enable firmware upload
MC908HCS08GB60 (1) /MC13192 PC
B Application Test Tool
o
o NVM
t
l 802.15.4 MAC
o
a
d 802.15.4 PHY
e RS232
r Device Driver UART (2) UART or USB
1) Or MC908HCS08GT60
2) Or USB
Figure 1 Application Supporting RS232 UART or USB Interface