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  Topic: Stepper Motor with 16F877A
ntc

Replies: 7
Views: 23377

PostForum: General CCS C Discussion   Posted: Sun Feb 21, 2016 9:13 pm   Subject: Controlling step motor
Hi everybody!
Today I buy 2 motor 48BYJ-5V and driver with ULN280c IC, like as a link to make a clock ( 1 motor drive a second, and another drive a minutues with a mechanics structural have before, ...
  Topic: MCP23S17 interfacing with SPI with controller PIC18F8722
ntc

Replies: 22
Views: 49283

PostForum: General CCS C Discussion   Posted: Mon Jan 11, 2016 7:20 pm   Subject: Slew rate control
Hi.
I tried to write a program to test with your instructions.
Also I used 23S17 driver of CCSC compiler to control. Everthing is OK.
But I have an amazing with slew rate control of this IC. Is it ...
  Topic: MCP23S17 interfacing with SPI with controller PIC18F8722
ntc

Replies: 22
Views: 49283

PostForum: General CCS C Discussion   Posted: Fri Jan 08, 2016 8:55 pm   Subject: MCP23S17 interfacing with SPI with controller PIC18F8722
OK. That makes sense. No need for 'at the same time', and good reason to want to be able to read the signal.

One question though. Could you limit the current involved?.
Add a series resistor to th ...
  Topic: MCP23S17 interfacing with SPI with controller PIC18F8722
ntc

Replies: 22
Views: 49283

PostForum: General CCS C Discussion   Posted: Thu Jan 07, 2016 7:12 pm   Subject: Output Connection of 23S17
Thanks for your advice!
In my project, I want to check the connection of wire bus ( check short of copper wires) so that I want to use any pins of 23S17 to control input or output.
I get an example, ...
  Topic: MCP23S17 interfacing with SPI with controller PIC18F8722
ntc

Replies: 22
Views: 49283

PostForum: General CCS C Discussion   Posted: Sun Jan 03, 2016 8:31 pm   Subject: MCP23S17 interfacing with SPI with controller PIC18F8722
Hi everybody
I've a problem when connect with MCP23S17.
Can I configure a MCP23S17 output and input at the same time?
Example, I make an output on GPA0 and read the input on GPA1 (GPA0 and GPA1 con ...
  Topic: Save eeprom before WDT restart
ntc

Replies: 8
Views: 13444

PostForum: General CCS C Discussion   Posted: Fri Mar 20, 2015 12:42 am   Subject: Save eeprom before WDT restart

But, I then have to ask 'why bother'. When the chip restarts with a watchdog, the registers are saved (not lost), so you can test the 'restart_cause', and then write the EEPROM.
Thanks you, serious ...
  Topic: Save eeprom before WDT restart
ntc

Replies: 8
Views: 13444

PostForum: General CCS C Discussion   Posted: Thu Mar 19, 2015 11:42 pm   Subject: Save eeprom before WDT restart
Thanks all.
In my program, i'm using WDT to reset the chip when it hanging. So, I think can't using an WDT ISR to save data to EEPPROM.
I'm using PIC18F4680, and wanted to save about <20 byte. In ...
  Topic: Save eeprom before WDT restart
ntc

Replies: 8
Views: 13444

PostForum: General CCS C Discussion   Posted: Wed Mar 18, 2015 10:31 pm   Subject: Save eeprom before WDT restart
If I want to save a data to EEPROM before WDT restart, can I have do ?
I think have an wdt interrupt to process this work ?
Thanks
 
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