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| Search found 36 matches |
| Author | Message |
|---|---|
 Topic: Level Translator |
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| runtime Replies: 3 Views: 6555 |
 Forum: General CCS C Discussion Posted: Wed Mar 22, 2006 11:03 am Subject: Level Translator |
| Hello All,
I'm using a PIC18F252 at 5V and I need to interface it to a device running at 3.6V, level signals are different so I need a level translator like MAX3390E but in a PDIP package for testi ... |
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| Topic: is this signal level ok? Please help |
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| runtime Replies: 5 Views: 7920 |
Forum: General CCS C Discussion Posted: Fri Aug 26, 2005 10:58 am Subject: is this signal level ok? Please help |
| Yes, the Schmitt trigger input pins' characteristics are:
Input Low Voltage: Vss to 0.2 V Unput High Voltage: 0.8 to Vdd any ideas? |
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| Topic: is this signal level ok? Please help |
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| runtime Replies: 5 Views: 7920 |
Forum: General CCS C Discussion Posted: Fri Aug 26, 2005 9:32 am Subject: is this signal level ok? Please help |
| Hello All,
I want to detect the DCD signal from a modem module. The DCD Output from the module has the following voltage specs: Output Low Voltage: 0 to 0.6 V Output High Voltage: 2.2 to 2.75 ... |
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| Topic: level shifting between 3.3V and 3.6V |
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| runtime Replies: 2 Views: 4649 |
Forum: General CCS C Discussion Posted: Wed Aug 17, 2005 10:50 am Subject: level shifting between 3.3V and 3.6V |
| Hello All,
I would like your help on the following: I have to connect a 3.6V device to a PIC(PIC18F252) at 3.3V, the manual for the 3.6V device says I can use a diode/resistor level shifting for ... |
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| Topic: has someone used a Sony Ericsson GT47/GT48? please help |
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| runtime Replies: 4 Views: 9165 |
Forum: General CCS C Discussion Posted: Thu Apr 14, 2005 3:49 pm Subject: has someone used a Sony Ericsson GT47/GT48? please help |
| Hello,
Do I need a MAX232 to interface the GT48 to my PC? Can I use just TX, RX and GND signals to talk to the GT48? Thank you in advance Peter |
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| Topic: what should I modify to kbd.c to use port C? |
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| runtime Replies: 6 Views: 16873 |
Forum: General CCS C Discussion Posted: Tue Feb 15, 2005 5:03 pm Subject: Thank you! |
| I just wanted to say thank you. It worked perfectly!
Best Regards |
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| Topic: what should I modify to kbd.c to use port C? |
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| runtime Replies: 6 Views: 16873 |
Forum: General CCS C Discussion Posted: Tue Feb 15, 2005 2:43 pm Subject: keypad info |
| www.storm-keypads.com
Graphic Series 12 KEY PAD Part No: GS120203 Contact Connections ('o' are pins, as viewed from rear of keypad): o o o o o o o o 8 7 6 5 4 3 2 1 Key Location: ('o' ar ... |
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| Topic: what should I modify to kbd.c to use port C? |
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| runtime Replies: 6 Views: 16873 |
Forum: General CCS C Discussion Posted: Tue Feb 15, 2005 12:31 pm Subject: keypad connection? |
| Hello PCM programmer,
I've already modified the 2 lines to: #byte kbd = 0xF82 // This puts the entire structure #define set_tris_kbd(x) set_tris_c(x) would you please explain to me how to c ... |
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| Topic: what should I modify to kbd.c to use port C? |
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| runtime Replies: 6 Views: 16873 |
Forum: General CCS C Discussion Posted: Mon Feb 14, 2005 6:43 pm Subject: what should I modify to kbd.c to use port C? |
| Hello All,
Would someone please tell me what should be modified in kbd.c to use port C? (PIC18F252). Thank you in advance Peter // Un-comment the following define to use port B // #define ... |
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| Topic: timed getc() at 115200 baud? |
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| runtime Replies: 6 Views: 9055 |
Forum: General CCS C Discussion Posted: Wed Feb 02, 2005 3:50 pm Subject: timed getc() at 115200 baud? |
| The code I posted earlier is from the CCS Manual, it says that the delay should be less than a tenth of a bit time, so for 115200 I will get:
(1/115200)/10 = 8.68e-7 = 0.000000868 = 0.868us !! S ... |
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| Topic: timed getc() at 115200 baud? |
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| runtime Replies: 6 Views: 9055 |
Forum: General CCS C Discussion Posted: Wed Feb 02, 2005 12:12 pm Subject: timed getc() at 115200 baud? |
| Hello,
I'm using the following code to receive a character at 4800 baud: // --------------------- // Function GetModemChar // --------------------- int GetModemChar(void) { ... |
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| Topic: Kaypad (12 Keys) on port C? |
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| runtime Replies: 2 Views: 6873 |
Forum: General CCS C Discussion Posted: Wed Jan 26, 2005 4:03 pm Subject: Kaypad (12 Keys) on port C? |
| Hello,
I would like to know if I can connect a 12 keys keypad to Port C on a PIC18F252, all examples uses port B... (I need port B for other things). Thank you Peter |
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| Topic: need to find a miniature numeric keypad? |
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| runtime Replies: 1 Views: 7839 |
Forum: General CCS C Discussion Posted: Mon Jan 24, 2005 2:43 pm Subject: need to find a miniature numeric keypad? |
| Hello all,
Does anyone know where can I buy a mini keypad, just numbers and maybe # and * keys? Thank you in advance Peter |
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| Topic: RS232 communications question |
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| runtime Replies: 3 Views: 11590 |
Forum: General CCS C Discussion Posted: Thu Nov 11, 2004 9:28 am Subject: Wavecom modems |
| bdavis,
Sorry I didn't answer earlier. The Wavecom modems are great, they only manufacture the GSM module, please take a look at www.Multitech.com part # MTSMC-G-F2, that's the one I'm using, its ... |
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| Topic: RS232 communications question |
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| runtime Replies: 3 Views: 11590 |
Forum: General CCS C Discussion Posted: Thu Sep 23, 2004 10:05 am Subject: RS232 communications question |
| Hello all,
I have a PIC18F252 attached to a Wavecom modem, the Wavecom modem has the following I/O Electrical Characteristics: Digital Inputs: DTR,TXD,RTS,RESET: Input High = Min 3,675V, Input ... |
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