Download µChameleon 2 User`s Manual

µChameleon 2
1.14.2.
1.14.3.
1.15.
User’s Manual
Measuring a single pulse length ....................................................................... 18
Changing edge sensitivity ................................................................................ 18
SPI – Serial Peripheral Interface........................................................ 19
1.15.1.
1.15.2.
1.15.3.
1.15.4.
1.15.5.
1.15.6.
1.15.7.
1.15.8.
1.16.
Introduction ...................................................................................................... 19
Turning the SPI on and off............................................................................... 19
Setting clock rate.............................................................................................. 19
Setting clock phase and polarity....................................................................... 20
Sending data ..................................................................................................... 20
Receiving data .................................................................................................. 20
Setting the dummy byte.................................................................................... 21
Full-duplex transmit – receive.......................................................................... 21
UART Support ................................................................................... 22
1.16.1.
1.16.2.
1.16.3.
1.16.4.
1.16.5.
1.17.
Introduction ...................................................................................................... 22
Initialisation...................................................................................................... 22
Sending data ..................................................................................................... 22
Receiving data .................................................................................................. 23
Asynchronous Notification .............................................................................. 23
Variables and arithmetic .................................................................... 24
1.17.1.
1.17.2.
1.17.3.
1.17.4.
1.17.5.
1.17.6.
1.18.
Dim................................................................................................................... 24
Let..................................................................................................................... 24
Increment and decrement ................................................................................. 25
Print .................................................................................................................. 25
The ‘?’ special variable .................................................................................... 25
Erasing variables .............................................................................................. 25
Conditional execution ........................................................................ 26
1.18.1.
1.19.
If … then and relational operators.................................................................... 26
Event handlers.................................................................................... 27
1.19.1.
1.19.2.
1.19.3.
1.19.4.
1.19.5.
Introduction ...................................................................................................... 27
The reset event ................................................................................................. 27
The background event ...................................................................................... 27
Background event clock source........................................................................ 27
Defining event handlers ................................................................................... 28
2. Hardware Information ...................................................................29
2.1.
2.2.
Inputs / Outputs ..................................................................................... 29
Power supply circuitry........................................................................... 29
2.2.1.
2.2.2.
2.2.3.
2.2.4.
Power circuitry overview ................................................................................. 29
Power circuitry protections .............................................................................. 29
Using an external wall-mount transformer....................................................... 30
Thermal considerations .................................................................................... 30
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firmware rev 4.0