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8.1
Flash Clock Settings: Source and Frequency
In the Flash Clock Source box, there are two option buttons that enable you to select whether the
source of the main clock for the device being programmed is Host (driven by M-Station baseboard) or
Target (supplied by the micro-board or target system).
1.
Normally the micro-board used with the M-Station has an on-board main clock crystal circuit
and does not need a clock supplied from the M-Station. In this case, click Target to disable
the M-Station's CLK clock output signal on the flash-programming interface.
2.
When an optional clock oscillator is mounted on the M-Station in the J7 location, the M-
Station can provide a driven main clock to the micro-board or target. In this case, click Host
to enable the M-Station to drive the CLK signal on the flash-programming interface.
Jumpers may need to be changed on the micro-board for the driven clock to be used. Also,
if no oscillator circuit is mounted in J7, then the CLK line will not oscillate.
3.
Whether the main clock is provided on the target or driven by the M-Station, enter the
frequency of the main clock in the Target Frequency text box. The value is recorded in
megahertz (MHz). For example, the M-78F0138's on-board crystal provides a 10 MHz clock,
so you should you type "10" or "10.0" for the frequency. On the K0RE9418 board, the on-
board crystal is 4.9152 MHz and you should enter "4.9152".
The clock frequency value is used to initialize and calibrate operations on the M-Station side of the
flash-programming interface, and internal operations of the flash microcontroller itself during
programming. Entering an incorrect value for the frequency may result in failure of communication
between the M-Station and the flash device, or incorrect programming operations.
8.2
Communication Interface Settings
The Communication Interface box enables you to select the flash-programming communication
channel and the rate at which communication takes place.
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M-Station Baseboard
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