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| Search found 5 matches |
| Author | Message |
|---|---|
 Topic: If I use I2C my PIC sometimes stops work |
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| darkmagic Replies: 10 Views: 18836 |
 Forum: General CCS C Discussion Posted: Thu Jun 16, 2011 2:02 am Subject: If I use I2C my PIC sometimes stops work |
| SCL is being intermittently held low by the old EEPROM.
Sounds as if the chip is faulty, and cannot always complete an operation.... Best Wishes If I use PicKit to read or to write to this EEPR ... |
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| Topic: If I use I2C my PIC sometimes stops work |
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| darkmagic Replies: 10 Views: 18836 |
Forum: General CCS C Discussion Posted: Wed Jun 15, 2011 11:27 am Subject: If I use I2C my PIC sometimes stops work |
| I got rid capacitors.
I changed value of pull-up resistors - now 1320 ohm. PIC, PCA drivers, EEPROM and pull-up resistors are connect to the same 3V3 net. Before each device is switch and I can tu ... |
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| Topic: If I use I2C my PIC sometimes stops work |
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| darkmagic Replies: 10 Views: 18836 |
Forum: General CCS C Discussion Posted: Wed Jun 15, 2011 3:21 am Subject: If I use I2C my PIC sometimes stops work |
| asmallri: If I measure resistors between PIC (SDA, SCL) and 3V3 net, I'll get 2170R.
Ttelmah: 1. I use capacitors because I see it in some circuit and it works perfect. I know that capacitance is ... |
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| Topic: If I use I2C my PIC sometimes stops work |
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| darkmagic Replies: 10 Views: 18836 |
Forum: General CCS C Discussion Posted: Wed Jun 15, 2011 2:32 am Subject: If I use I2C my PIC sometimes stops work |
| Both pull-up resistors are 2k2 to 3V3 and to GND there are 100p capacitors (software I2C is nothing with PIR1 register.
edit1: 1. I compile my project without force_hw and it runs good. 2. I put ... |
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| Topic: If I use I2C my PIC sometimes stops work |
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| darkmagic Replies: 10 Views: 18836 |
Forum: General CCS C Discussion Posted: Tue Jun 14, 2011 4:40 pm Subject: If I use I2C my PIC sometimes stops work |
| Hi, I'm using PIC 18F67J50 (void main(void) runs.
main.c: #include <18F67J50.h> #DEVICE ADC=10 #fuses HS,NOWDT,NOPROTECT, PLL1, NOSTVREN, NOFCMEN #use delay(clock=24000000) #USE ... |
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