OLIMEX© 2015
OLIMEXINO-5510 user's manual
CHAPTER 5: CONTROL CIRCUITY
5. Introduction to the chapter
Here you can find information about reset circuit and quartz crystals locations, the power supply
circuit is discussed.
5.1 Reset
OLIMEXINO-5510's reset circuit includes R7 (33Ω), R8 (330Ω), and a RESET button.
5.2 Clocks
Q1 – 32 768 MHz quartz crystal on pins 8 and 9 of the F5510 allowing RTC(Real-Time Clock).
Q2 – 4 MHz quartz crystal is connected to pins 45 and 46 of the MSP430F5510 processor.
5.3 Power supply circuit
The power supply circuit of OLIMEXINO-5510 allows powering via two sources – from the
miniUSB (the device will draw it's required current automatically, however ensure the USB port is
standard compatible and can provide at least 1A of current) or from the Li-Po connector if you have
3.7V battery.
If you have both connected the USB power will charge the battery (if the battery is not full).
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