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| Search found 7 matches |
| Author | Message |
|---|---|
 Topic: DS1307 to PIC18F452 |
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| Andrew Replies: 14 Views: 26051 |
 Forum: General CCS C Discussion Posted: Fri Aug 13, 2004 2:38 pm Subject: DS1307 to PIC18F452 |
| Alright so I got a simple interface to the DS1307 working. It reads the time from the DS1307 and relays it out the serial port to display the time in hyperterminal.
However, it seems like the initia ... |
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| Topic: What's a good software to design a circuit board? |
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| Andrew Replies: 35 Views: 43279 |
Forum: General CCS C Discussion Posted: Fri Aug 13, 2004 10:57 am Subject: What's a good software to design a circuit board? |
| EAGLE from [url=http://www.cadsoftusa.com/]CadSoft, they've got a free version which you can use to create a double sided 100x80mm board. | |
| Topic: DS1307 to PIC18F452 |
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| Andrew Replies: 14 Views: 26051 |
Forum: General CCS C Discussion Posted: Thu Aug 12, 2004 4:40 pm Subject: DS1307 to PIC18F452 |
| I never really used the EEPROM part of the code to do serious reading/writing, I just wrote a value to address 0x0000, verified that it read back correctly several times, and shifted my focus to the D ... | |
| Topic: DS1307 to PIC18F452 |
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| Andrew Replies: 14 Views: 26051 |
Forum: General CCS C Discussion Posted: Thu Aug 12, 2004 3:29 pm Subject: DS1307 to PIC18F452 |
| Alright thinking along the lines of the write command not being acknowledged, I modified the read_rtc() to wait for an ack...
unsigned int read_rtc(unsigned int adr) { unsigned ... |
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| Topic: DS1307 to PIC18F452 |
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| Andrew Replies: 14 Views: 26051 |
Forum: General CCS C Discussion Posted: Thu Aug 12, 2004 3:05 pm Subject: DS1307 to PIC18F452 |
| Mark:
The DS1307 (along with everything else) is being run at 5V. Following your post, I grounded the Vbat pin just to be sure the DS1307 wasn't switching over to battery power and disallowing acces ... |
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| Topic: DS1307 to PIC18F452 |
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| Andrew Replies: 14 Views: 26051 |
Forum: General CCS C Discussion Posted: Thu Aug 12, 2004 2:43 pm Subject: DS1307 to PIC18F452 |
| I've decided to keep the EEPROM out of its socket for now and focus solely on getting the RTC to interface correctly. The EEPROM did, however, function as expected (with or without the DS1307 on the ... | |
| Topic: DS1307 to PIC18F452 |
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| Andrew Replies: 14 Views: 26051 |
Forum: General CCS C Discussion Posted: Thu Aug 12, 2004 2:08 pm Subject: DS1307 to PIC18F452 |
| Hello
I'm going to be using a real-time clock in a project and the DS1307 RTC looked to be the best one. I can't seem to read from or write to it very reliably though. My test program is set up t ... |
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