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| Search found 18 matches |
| Author | Message |
|---|---|
 Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
 Forum: General CCS C Discussion Posted: Tue Feb 24, 2009 12:45 pm Subject: Problems with DS1307 |
| I'm using a test board which I bought some years ago.. i think i might don't have the schematic...
I'll try another method.. I'll build a brand new board without all the test equipment... stay tu ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Tue Feb 24, 2009 12:29 pm Subject: Problems with DS1307 |
| yes 4K7 pullups on both lines... | |
| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Tue Feb 24, 2009 11:28 am Subject: Problems with DS1307 |
| today i tested my new ds1307 and it's doing the same as before.... now when i try to set date time it returns 45:85:85.. when i read the seconds i get:
:00 :01 :01 :00 :03 :45 i really don't ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Wed Feb 18, 2009 4:18 pm Subject: Problems with DS1307 |
| Well.. now i think it's my IC that is damaged or faulty.. with or without the crystal it returns the same values and now it isn't detected by the test routine...
I ordered another ic.. I'll let you ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Wed Feb 18, 2009 4:09 pm Subject: Problems with DS1307 |
| Now i'm starting to think that the RTC is faulty.. now it isn't detected by the test program you posted before...
:( I'll try some others hardware configurations |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Wed Feb 18, 2009 3:51 pm Subject: Problems with DS1307 |
| I bought the rtc and the crystals on ebay .. the auction said 32.768Khz watch crystals.. i have this code printed on it: KDS7B ..
i tried also disconnecting the other device on i2c bus.. The volt ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Wed Feb 18, 2009 3:28 pm Subject: Problems with DS1307 |
| The code i posted is an adaptation for my lcd.. i have a 1x6 characters lcd so for a simple test i was printing the time without the colons
these are my includes: #include "lcd_new.h" // ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Wed Feb 18, 2009 1:58 pm Subject: Problems with DS1307 |
| I ran that code and the RTC is correctly detected at address D0 ... I have 2 i2c devices and both are detected correctly...
Now I'm getting another behaviour: I read the time every second, and now ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Wed Feb 18, 2009 5:55 am Subject: Problems with DS1307 |
| I have another question.. do you think that i've damaged the rtc by connecting the vbat to +5v?
I noticed another thing: I tried to call the "get_time" function with the rtc disconnected ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Fri Feb 13, 2009 6:14 pm Subject: Problems with DS1307 |
| I tried to enable the swqe , I have a 1k pullup on swout pin and a led wired with a resistor from the sqout pin to gnd... the led is still off..
I think the problem is with the crystal... but even ... |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Fri Feb 13, 2009 5:47 pm Subject: Problems with DS1307 |
| The voltage on Vbat pin is 3.45V set by 2 resistors because i don't have a battery...
I checked every thing and it doesn't work.. :( |
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| Topic: Problems with DS1307 |
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| simons Replies: 19 Views: 30234 |
Forum: General CCS C Discussion Posted: Thu Feb 12, 2009 4:24 pm Subject: Problems with DS1307 |
| Hello to all I have 2 devices on a i2c bus, one pcf8574 to drive a lcd and a ds1307 ..
I'm using this driver I found on this forum: ///////////////////////////////////////////////////////////////// ... |
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| Topic: Having troubles with 16F876A and RS232 |
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| simons Replies: 10 Views: 14260 |
Forum: General CCS C Discussion Posted: Sat Jan 17, 2009 4:44 am Subject: Having troubles with 16F876A and RS232 |
| OMG!! Now it works reeeeally well!!!
Thanks a lot man!!! This is very much appreciated!!!  |
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| Topic: Having troubles with 16F876A and RS232 |
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| simons Replies: 10 Views: 14260 |
Forum: General CCS C Discussion Posted: Fri Jan 16, 2009 5:57 pm Subject: Having troubles with 16F876A and RS232 |
| The board where the pic is installed is a demo board, I didn't build it... It has it's own DC Adapter and a rs232 port.
I checked and everything seems fine.. no floating points or non-properly groun ... |
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| Topic: Having troubles with 16F876A and RS232 |
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| simons Replies: 10 Views: 14260 |
Forum: General CCS C Discussion Posted: Fri Jan 16, 2009 9:45 am Subject: Having troubles with 16F876A and RS232 |
| Ok here's the complete code, I made a little change but basically it's the same code.
PIN_B4 is check led PIN_C3 is TX led PIN_C4 is RX led all leds are active low. #include <16F876A.h ... |
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