AN137 Silicon_Laboratories, AN137 Datasheet - Page 18

• Manufacturer Part Number: AN137
• Description: Lithium ION Battery Charger Using C8051f300
• Manufacturer: Silicon_Laboratories

AN137
18
No
Turn Off LED
No
Figure 16. PCA_OVERFLOW_ISR() Flow Chart.
CURRENT
charge &
no errors
Turn on LED
second
LOW
odd
?
?
Yes
Yes
No
No
No
PCA_OVERFLOW_ISR()
Reset PCA Counter and
Rev. 1.2
Decrement time.count
Increment time.hour
Reset time.count to
Increment time.sec
Increment time.min
Reset time.hour
24 = time.hour
PCA Interrupts
0 = time.count
60 = time.min
60 = time.sec
Reset time.sec
Reset time.min
overflow value
?
?
Yes
Yes
Yes
Yes
No
END