variable = RTCRead( address )
|variable||variable to store the result (Byte type)|
If you see the address table of RTC chip (DS3231) below, you will notice that the time data are stored from addresses 0 through 6. The rest of the addresses are related to the alarm and RTC chipsetting; thus, we recommend those interested to refer to the DS3231 databook.
RTCRead command literally reads data from the RTC chip.
To use CB405RT, in the beginning of the program, one must replace Const Device = CB405 with #Include “CB405RT”.
#include "CB405RT" ' Use "#include" instead of the "Const Device" statement. Dim i As Integer Wait 100 RTCwrite 0,&h20 ' Sec RTCwrite 1,&h59 ' Min RTCwrite 2,&h23 ' Hour 24h RTCwrite 3,&h7 ' day 1-7, 1=Sun, 2=Mon, 3=Tue, 4=Wed, 5=Thu, 6=FRI, 7=SAT RTCwrite 4,&h31 ' Date RTCwrite 5,&h12 ' Month RTCwrite 6,&h08 ' Year Do i = RTCread(0) Debug Goxy,1,1,Hex2 i, " Sec" i = RTCread(1) Debug Goxy,1,2,Hex2 i, " Min" i = RTCread(2) And &h3f Debug Goxy,1,3,Hex2 i, " Hour" i = RTCread(3) Debug Goxy,1,4,Hex2 i, " Day" i = RTCread(4) Debug Goxy,1,5,Hex2 i, " Date" i = RTCread(5) Debug Goxy,1,6,Hex2 i, " Month" i = RTCread(6) Debug Goxy,1,7,Hex2 i, " Year" Wait 500 Loop
When the above example program is executed, the following debug window will appear