Olimex Open Source Hardware Industrial grade ARDUINO like development board OLIMEXINO-328 OLIMEXINO-328 用户手册
产品代码
OLIMEXINO-328
OLIMEX© 2013
OLIMEXINO-328 user's manual
CHAPTER 4 - CONTROL CIRCUITY
4. Introduction to the chapter
Here you can find information about reset circuit and quartz crystals locations, the power supply
circuit is discussed.
circuit is discussed.
4.1 Reset
OLIMEXINO-328 reset circuit includes R12 (4.7kΩ), R13 (330Ω), SD5 (1N4148), C7 (4.7nF),
C8(100nF), jumper USB_RST, ATmega328P pin29 (PC6/3RESET/PCINT14) and RST button.
C8(100nF), jumper USB_RST, ATmega328P pin29 (PC6/3RESET/PCINT14) and RST button.
4.2 Clocks
Quartz crystal Q1 16 MHz is connected to ATmega328P pin 7 (XTAL1) and pin 8 (XTAL2). Note
that the crystal is on socket and can be changed to any value.
that the crystal is on socket and can be changed to any value.
4.3 Power supply circuit
OLIMEXINO-328 can take power supply from:
- external power supply (9-30) VDC.
- +5V from USB
- 3.7V Li-ion battery
- +5V from USB
- 3.7V Li-ion battery
The programmed board power consumption is about 20mA with all peripherals enabled.
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