दो दिन attiny2313 और ds1307 पर देखें

प्रेरणा

चलो शुरू हो जाओ!

• AtTiny2313 - 8-बिट माइक्रोकंट्रोलर
• ds1307 - अच्छी सटीकता के साथ काउंटर चिप
• 32.768 kHz पर घड़ी क्वार्ट्ज
• 2 x 10K रेसिस्टर्स
• 10 ओम प्रति 7 प्रतिरोधों
• 1 x 5.2 kΩ रोकनेवाला
• 4 प्रतिरोधों प्रति 1 kOhm
• 4 ट्रांजिस्टर KT315 (उनके आधुनिक भाई)
• 5 वोल्ट बजर
• 2 घड़ी बटन (कोने बढ़ते)
• 4 संकेतक (10011-बीएसआर) आम एनोड
• 47 टैंटलम माइक्रोफैराड
• और पावर सॉकेट और कॉर्नर माउंट (छेद व्यास - 5.1 मिमी, केंद्र संपर्क व्यास - 1.5 मिमी)

कार्यक्रम

$regfile = "attiny2313.dat"
$crystal = 8000000

Dim Count As Byte
Dim Number(4) As Integer
Dim Pointmem As Byte
Dim Point As Bit
Dim Mine As Byte
Dim Hour As Byte
Dim Seco As Byte
Config Porta.1 = Output
Porta.1 = 1
Waitms 10
Porta.1 = 0
Waitms 70
Porta.1 = 1
Waitms 10
Porta.1 = 0
Config Portb = Output
Config Porta.0 = Output
Config Portd.2 = Output
Config Portd.3 = Output
Config Portd.6 = Output
Config Sda = Portd.5
Config Scl = Portd.4
Config Pind.0 = Input
Portd.0 = 1
Config Pind.1 = Input
Portd.1 = 1
Config Timer1 = Timer , Prescale = 64
On Timer1 Awake:
Config Timer0 = Timer , Prescale = 64
On Ovf0 Refresh
Dig1 Alias Porta.0 : Dig2 Alias Portd.2 : Dig3 Alias Portd.3 : Dig4 Alias Portd.6
Enable Interrupts
Enable Ovf0
Enable Timer1
Start Timer1

Hour = 0
Mine = 0

If Pind.1 = 0 And Pind.0 = 0 Then
Porta.1 = 1
Waitms 100
Porta.1 = 0
Hour = 0
Mine = 0
Seco = 1

Seco = Makebcd(seco)
I2cstart
I2cwbyte &HD0
I2cwbyte 0
I2cwbyte Seco
I2cstop

Mine = Makebcd(mine)
I2cstart
I2cwbyte &HD0
I2cwbyte 1
I2cwbyte Mine
I2cstop

Hour = Makebcd(hour)
I2cstart
I2cwbyte &HD0
I2cwbyte 2
I2cwbyte Hour
I2cstop
Waitms 1000
Porta.1 = 1
Waitms 10
Porta.1 = 0
End If

Do
I2cstart
I2cwbyte &HD0
I2cwbyte &H00
I2cstart
I2cwbyte &HD1
I2crbyte Seco , Ack
I2crbyte Mine , Ack
I2crbyte Hour , Nack
I2cstop
Seco = Makedec(seco)
Mine = Makedec(mine)
Hour = Makedec(hour)

If Seco = 80 Then
Seco = 10
Seco = Makebcd(seco)
I2cstart
I2cwbyte &HD0
I2cwbyte 0
I2cwbyte Seco
I2cstop
End If

If Hour > 9 Then
Number(1) = Hour / 10
Number(1) = Abs(number(1))
Else
Number(1) = 20
End If

Number(2) = Hour Mod 10

If Mine > 9 Then
Number(3) = Mine / 10
Number(3) = Abs(number(3))
Else
Number(3) = 0
End If

Number(4) = Mine Mod 10

If Pind.1 = 0 Then
Porta.1 = 1
Waitms 10
Porta.1 = 0
If Mine = 59 Then
Mine = 0
Else
Incr Mine
End If

Mine = Makebcd(mine)
I2cstart
I2cwbyte &HD0
I2cwbyte 1
I2cwbyte Mine
I2cstop
Else

If Pind.0 = 0 Then
Porta.1 = 1
Waitms 10
Porta.1 = 0
If Hour = 23 Then
Hour = 0
Else
Incr Hour
End If
Hour = Makebcd(hour)
I2cstart
I2cwbyte &HD0
I2cwbyte 2
I2cwbyte Hour
I2cstop
End If
End If

Waitms 250
Loop

Awake:
If Point = 1 Then
Porta.1 = 1
Waitus 10
Porta.1 = 0
End If
Toggle Point
Return

Refresh:
Reset Dig1 : Reset Dig2 : Reset Dig3 : Reset Dig4
Incr Count : If Count > 4 Then Count = 1
If Count = 2 And Point = 1 Then
Pointmem = Number(2) + 10
Portb = Lookup(pointmem , Digits)
Else
Portb = Lookup(number(count) , Digits)
End If
Select Case Count
Case 1 : Set Dig1
Case 2 : Set Dig2
Case 3 : Set Dig3
Case 4 : Set Dig4
End Select
Return

Digits:

Data &B00101000 , &B01111011 , &B00110100 , &B00110010 , &B01100011
Data &B10100010 , &B10100000 , &B00101011 , &B00100000 , &B00100010
Data &B00001000 , &B01011011 , &B00010100 , &B00010010 , &B01000011
Data &B10000010 , &B10000000 , &B00001011 , &B00000000 , &B00000010
Data &B11111111

निष्कर्ष