Eddy DK Programmer Guide
57
2.5.6
RTC
- We used D1340 which is connected I2C interface.
- In DS1340, you must use crystal of load capacitance = 12.5pF (Refer to bellow Crystal spec)
- You have to confirm Crystal spec because some RTC Chips have different spec
- We used CR2032 (235mAh) Lithium with Backup Battery
DS1340 Crystal Specifications
Parameter
Symbol
MIN
TYP
MAX
Units
Normal Frequency
fo
32.768
KHz
Series Resistance
ESR
45,60
KΩ
Load Capacitance
CL
12.5
pF
2.5.7
Temp Sensor
we used LM50(National) to AD0(PC0)
Содержание Eddy DK
Страница 1: ...1 Eddy DK Programmer Guide Ver 2 5 1 1 2011 02 15...
Страница 10: ...Eddy DK Programmer Guide 10 2 3 Eddy CPU v2 1 v2 5...
Страница 36: ...Eddy DK Programmer Guide 36 2 4 4 External Device Interface Description...
Страница 47: ...Eddy DK Programmer Guide 47 Eddy S4M v2 1 Eddy S4M v2 5...