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| Search found 12 matches |
| Author | Message |
|---|---|
 Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
 Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 10:47 am Subject: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
| Someone can tell me how to try:
a. Send from the slave two bytes together; b. Send from the slave half_byte; Let me explain: If the analog values are: // Each analog port //AN0,AN1,AN2,A ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 10:19 am Subject: I'm using this driver |
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//////////////////////////////////////////////////////////////////////////////// /// DS1307.C /// /// Driver for ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 10:16 am Subject: Ttelmah |
| Work with one or two analog values works fine.
Either if i set the analogs to 0 or ie i put the lm35dz temp sensor in all ports they works fine too! the problem shows up when there's no sensors in th ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 10:15 am Subject: temtronic |
| Work with one or two analog values works fine.
Either if i set the analogs to 0 or ie i put the lm35dz temp sensor in all ports they works fine too! the problem shows up when there's no sensors in th ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 9:46 am Subject: Ttelmah |
| Trying disable INT_SSP...
NOPE.... Same way!!! |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 9:41 am Subject: Thanks Ttelmah |
| I'm trying right now the code without INT_RDA, and about the battery, i'm using CR2032 LITHIUM 3V.
Ops.: Same problem again! the output is: 30/10/03 04 14:17:12 //and the right analog val ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 9:18 am Subject: temtronic |
| the whole system never crashs, the ds1307 just keep changing values!!! | |
| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 9:17 am Subject: temtronic |
| doesn't matter if i put one or two slaves the results are the same.
even if i try long delays before each call ex. //call all analog data + digital input from slaveA delay_ms(500); sl ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sun Jan 08, 2012 8:44 am Subject: Ttelmah |
| Thanks for yours replays guys, in fact when i run 18f4550 and ds1307 alone there is no such problem.
Even when i use stressing the bus without no delays for testing, there's no problem. Everyt ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sat Jan 07, 2012 9:45 pm Subject: NOPE |
Same problem here!!! The output is: 20/17/32 01 08:06:60 and the analog datas 124-24-91-120-50-79-87-76-255 (here is ok) from the slave I'm thinking that maybe, because the anal ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sat Jan 07, 2012 8:16 pm Subject: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
| Of course!!!
I've already tested the 18f4550 and ds1307 togheter and works fine!!! I send you my code. Master: #include <18F4550.h> // Definicao dos registros do Microcontrolador #use ... |
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| Topic: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
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| andretrilegal Replies: 19 Views: 26785 |
Forum: General CCS C Discussion Posted: Sat Jan 07, 2012 1:37 pm Subject: I2C + 18F4550 + 2 slave 16F877A + DS1307 changing date,time. |
| Hi guys!
I have a very strange problem!!! I'm working with one 18f4550 and two slaves 16f877a and works as a charm!!!! The master (18f4550), asks all analog port values from both, and works o ... |
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