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71M6511/71M6511H Demo Board User’s Manual
1.9.6 LOADING THE 6511_DEMO.HEX FILE INTO THE DEMO BOARD
Hardware Interface for Programming: The 71M6511/6511H IC provides an interface for loading code into
the internal flash memory. This interface consists of the following signals:
E_RXTX (data)
E_TCLK (clock)
E_RST (reset)
These signals, along with V3P3 and GND are available on the emulator header J14. Production meters may
be equipped with much simpler programming connectors, e.g. a 5x1 header.
Programming of the flash memory requires either the ADM51 in-circuit emulator by Signum Systems
(http//www.signumsystems.com) or the Flash Download Board Module (FDBM) provided by TERIDIAN
Semiconductor.
In-Circuit Emulator: If firmware exists in the 71M6511/6511H flash memory, the memory has to be erased
before loading a new file into memory. In order to erase the flash memory, the RESET button of the emulator
software has to be clicked followed by the ERASE button (Figure 1-12).
Once the flash memory is erased, the new file can be loaded using the Load command in the File menu. The
dialog box shown in Figure 1-13 makes it possible to select the file to be loaded by clicking the Browse
button. Once the file is selected, pressing the OK button loads the file into the flash memory of the IC.
At this point, the emulator probe (cable) can be removed. Once the 71M6511/6511H IC is reset using the
reset button on the Demo Board, the new code starts executing.
Flash Download Board Module (FDBM): Follow the instructions given in the User Manual for the FDBM.
The hardware watchdog timer must be disabled during all programming operations.
Figure 1-12: Emulator Window Showing Reset and Erase Buttons
Revision 5.4
? 2005-2007 TERIDIAN Semiconductor Corporation
Page: 33 of 115
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