Echelon IzoT NodeBuilder Manual do Utilizador Página 220

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FT 5000
SCL
SDA_CS1~
RST~
Aardvark
SCL
SDA
GND
Serial
EEPROM
Device
GND
GND
45
43
28
1
3
2
10
SDA
SCL
GND
VCC
R1
4.99k
VCC
R2
4.99k
Serial EEPROM-Aardvark I
2
C Connection
(Direct Connection)
Note: Pins 2 and 10 on the Aardvark are both connected to ground inside the Aardvark. As a result,
when the Aardvark is connected to the device board, it finds a reference ground at pin 10 and it takes
the RST~ line to ground on pin 2 at the same time. This means that once the Aardvark connection is
removed, the RST~ line is released and the 5000 or 6000 Series chip resumes normal operation.
206 Building and Downloading Device Applications
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