| ??? 04/29/08 01:59 Read: times |
#154130 - rtc 307 Responding to: ???'s previous message |
hi,
thanks for advice. yh it is working in 24 hr mode. i have set the osc bit 7 of 00h reg in the start of the progm, the thing i could not understand is, will the 6 th bit of 02h reg for 12 hr mode has to be set before the Osc bit of after this.As for the given program 12 hr mode is not working. thanks deep code: mov a,#1307wr ;(11010000)write bit send_byte ack byte mov a,#00h ;starting reg send_byte ack byte clr acc.7 ; 0- start Osc send_byte ack byte mov a,#02h ; hour reg send_byte ack byte setb acc.6 ; 12/24 hr bit send_byte ; set to 12 hr mode ack byte set clock read clock ; reading the clock regs show clock |
| Topic | Author | Date |
| RTC 1307 | 01/01/70 00:00 | |
| Changing the bit.... | 01/01/70 00:00 | |
| rtc 307 | 01/01/70 00:00 | |
| What does the data sheet say.... | 01/01/70 00:00 | |
| How to post source code | 01/01/70 00:00 | |
| 1307 | 01/01/70 00:00 | |
| THANKS | 01/01/70 00:00 | |
THANKS | 01/01/70 00:00 |