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M-Station Baseboard
If the micro-board or target system does not supply V
communication for programming is impossible. In this case, connect JP1 pins 1 to 2, marked as
"VDD_FLASH" and "VDE" on the board, to connect V
V
is supplied by the M-Station, then V
DD
the micro-board or target system (JP2 removed), then V
micro-board supplies V
3.6
JP4 V
V
for biasing MCUs can be adjusted to any voltage level required. Select JP4 to set the preset
PP
voltage level. To set another value, install a resistor in the optional through-hole R11 footprint and
adjust V
accordingly, as calculated by the following equation.
PP
Where R1 = 150Ω and R2 = R11.
When there is no jumper in JP4, VPX defaults to the 12V power supply voltage. Make sure that JP4
is inserted, and the proper voltage level for the device being programmed is selected. When
changing the JP4 jumper, always make sure to remove power from the J8 power jack.
DE
and JP1 should be left open.
DE
Selection and Generation
PP
VPX = [1+(R1/R2)]*1.25 + (50µA)*R2
Figure 6.
JP4 V
, the interface circuit has no power and
DE
to V
on the flash programming connector. If
DE
DD
will match the M-Station voltage level. If V
matches the V
DE
Selection and Generation
PP
8
is supplied by
DD
supplied. Normally, the
DD
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