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| Search found 9 matches |
| Author | Message |
|---|---|
 Topic: Software RS232 that is not disturbed by Interrupt |
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| chaertl1 Replies: 12 Views: 9171 |
 Forum: General CCS C Discussion Posted: Mon Aug 24, 2009 1:27 pm Subject: Software RS232 that is not disturbed by Interrupt |
| Got it working with 2400baud using fast io | |
| Topic: Software RS232 that is not disturbed by Interrupt |
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| chaertl1 Replies: 12 Views: 9171 |
Forum: General CCS C Discussion Posted: Mon Aug 24, 2009 12:45 pm Subject: Software RS232 that is not disturbed by Interrupt |
| I've tested it with the real hardware and it works very good. | |
| Topic: Software RS232 that is not disturbed by Interrupt |
|
| chaertl1 Replies: 12 Views: 9171 |
Forum: General CCS C Discussion Posted: Mon Aug 24, 2009 12:10 pm Subject: Software RS232 that is not disturbed by Interrupt |
| OK,
thanks, I got it working with 1200 baud in my simulator. At 2400 baud I had a problem with the length of the interrupt routine. I missed 3 us to get in sync. Maybe I can optimize the ... |
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| Topic: Software RS232 that is not disturbed by Interrupt |
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| chaertl1 Replies: 12 Views: 9171 |
Forum: General CCS C Discussion Posted: Mon Aug 24, 2009 1:36 am Subject: Software RS232 that is not disturbed by Interrupt |
| Did anybody try this on a 12F629.
i tried to do this with the #int_global bt then i'm out of rom |
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| Topic: Software RS232 that is not disturbed by Interrupt |
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| chaertl1 Replies: 12 Views: 9171 |
Forum: General CCS C Discussion Posted: Fri Aug 21, 2009 2:05 am Subject: Software RS232 that is not disturbed by Interrupt |
| I'm using a 12F629.
The 16F877 is just my debug device. and the desired clock for the 12f629 is the internal 4mhz. No HW UART. My code contains some german comments: The "accurateinte ... |
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| Topic: Software RS232 that is not disturbed by Interrupt |
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| chaertl1 Replies: 12 Views: 9171 |
Forum: General CCS C Discussion Posted: Fri Aug 21, 2009 1:30 am Subject: Software RS232 that is not disturbed by Interrupt |
| Hi,
Does anyone have an example for using software RS232 where an interrupt does not affect the getchar() function. CLOCK = 8Mhz My TIMER0 interrupt fires at 6400 Hz for pwm generation. every ( ... |
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| Topic: Accurate timer interrupt programming |
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| chaertl1 Replies: 8 Views: 12195 |
Forum: General CCS C Discussion Posted: Tue Aug 18, 2009 10:55 pm Subject: Accurate timer interrupt programming |
| Is it possible to prevent the compiler to implement its own interrupt code. | |
| Topic: Accurate timer interrupt programming |
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| chaertl1 Replies: 8 Views: 12195 |
Forum: General CCS C Discussion Posted: Mon Aug 17, 2009 12:08 pm Subject: Accurate timer interrupt programming |
| @ckielstra
the set_timer_x(get_timer_X + Y) is only possible if you are not to close to the rollover point (256). |
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| Topic: Accurate timer interrupt programming |
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| chaertl1 Replies: 8 Views: 12195 |
Forum: General CCS C Discussion Posted: Mon Aug 17, 2009 6:15 am Subject: Accurate timer interrupt programming |
| HI,
I discovered a problem, nobody explained in this forum. If you need an interrupt frequency of 6400Hz at 4Mhz clock frequency, someone might get in trouble with the accuracy of the interru ... |
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