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| Search found 9 matches |
| Author | Message |
|---|---|
 Topic: PS/2 keyboard driver/decoder, interrupt driven, 16F and up |
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| Dimlow Replies: 14 Views: 135729 |
 Forum: Code Library Posted: Tue Sep 30, 2008 10:44 am Subject: Parity bit |
| I think the parity bit in the send byte is wrong. Your Sending and even parity, not and odd parity!!! Probably why it don't work on all keyboards
output_bit(DATA, p&0x01); should read ... |
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| Topic: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
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| Dimlow Replies: 17 Views: 153262 |
Forum: Code Library Posted: Wed Jan 09, 2008 1:24 pm Subject: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
| No Comments ?
Gary |
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| Topic: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
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| Dimlow Replies: 17 Views: 153262 |
Forum: Code Library Posted: Wed Jan 02, 2008 1:29 pm Subject: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
| Just wanted to add that if you look close at the READ FROM PORT and WRITE TO PORT line in these figures it explains it all. Also the note on the bottom of figure 12 Transfer of data can be stopped at ... | |
| Topic: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
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| Dimlow Replies: 17 Views: 153262 |
Forum: Code Library Posted: Wed Jan 02, 2008 1:17 pm Subject: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
| I interpreted from figure 11(Write) that data 1 is valid after the Acknowledge from the slave and is valid until the data2 acknowledge after this data2 is valid.
As for figure 12 (Read) this tells ... |
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| Topic: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
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| Dimlow Replies: 17 Views: 153262 |
Forum: Code Library Posted: Tue Jan 01, 2008 7:13 pm Subject: i2c routines for dallas ds1624, philips pcf8574, and 24cXX |
| In this section of code, can you explain why you read and write the data twice
i understand the io_field=i2c_read(0); but why the io_field=i2c_read(); ??? int i2c_pcf8574_get_io(int de ... |
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| Topic: Output assumption |
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| Dimlow Replies: 4 Views: 4905 |
Forum: General CCS C Discussion Posted: Sun Nov 25, 2007 3:29 pm Subject: Output assumption |
| because the compiler set the tris for you automatically see #use standard_io in the manual.
Gary |
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| Topic: USB and I2C Wont work at that same time. |
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| Dimlow Replies: 16 Views: 14919 |
Forum: General CCS C Discussion Posted: Sun Nov 25, 2007 3:24 pm Subject: USB and I2C Wont work at that same time. |
| Just thought id give a little update and some info for people that may get stuck with this them self's.
In my main code, not the test code i was still having trouble with the usb, where on some com ... |
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| Topic: Question about glcd_text57 routine |
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| Dimlow Replies: 11 Views: 20194 |
Forum: General CCS C Discussion Posted: Sat Nov 24, 2007 7:05 am Subject: Question about glcd_text57 routine |
| Yep will do, i was assuming you would reuse the text variable for other texts.
Gary |
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| Topic: Question about glcd_text57 routine |
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| Dimlow Replies: 11 Views: 20194 |
Forum: General CCS C Discussion Posted: Sat Nov 24, 2007 4:13 am Subject: Question about glcd_text57 routine |
| try something like this
adc_value=read_adc(); volts=(float)(adc_value*5)/1023.0; sprintf(text,"%04.3fv %4LU Value",old_volts,old_adc ... |
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