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USB mouse connections 18F
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Date: 2006/07/19 09:18
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By: Chib
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Status: Visitor
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Hello everybody!!
I just want to know were I must plug the axis X and Y of the mouse to my PIC in the example of microchip for a PIC 18F series.
thanks a lot !
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Re:USB mouse connections 18F
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Date: 2006/07/19 09:44
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By: Mat
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Status: Admin
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Karma: 7
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| Posts: 211 |  |
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If your talking about the mouse in a circle example, you do not need to connect a mouse to the PIC. The pic simulates a mouse (moving in a circle) for you and transmits the appropiate data back to the pc.
Mat
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Re:USB mouse connections 18F
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Date: 2006/07/19 10:02
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By: chib
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Status: Visitor
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Yes I am talkin about that !
Hum okay so how can i changed the code to use really that ?
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Re:USB mouse connections 18F
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Date: 2006/07/19 10:05
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By: Mat
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Status: Admin
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Karma: 7
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| Posts: 211 | |
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What are you trying to do, convert a PS2 mouse into a usb one?
Mat
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Re:USB mouse connections 18F
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Date: 2006/07/19 10:09
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By: chib
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Status: Visitor
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Not exactly, i am trying to make a joystick with to axis and one button fot USB
i wanted to made that with the example of the mouse, because the axis X and Y are on the same working
have you some advices ?
(i think I must do an CAN fot that what are you thinking about ?)
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Re:USB mouse connections 18F
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Date: 2006/07/19 10:17
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By: Mat
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Status: Admin
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Karma: 7
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| Posts: 211 | |
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You may want to have a look at this thread
Hope that helps,
Mat
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Re:USB mouse connections 18F
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Date: 2006/07/20 06:24
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By: chib
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Status: Visitor
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Yes I know this thread I have already posted something but nobody is answering me ....
Do you know where I could find a convertor A/D 8bit software for my PIC please ?
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Re:USB mouse connections 18F
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Date: 2006/07/20 13:09
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By: dariog
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Status: User
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Karma: 6
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| Posts: 107 |  |
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Hi, you don't need any software, if you're working in C (as i suppose).
Just include
#include <adc.h>
at the beginning, then
OpenADC(ADC_FOSC_32 & ADC_RIGHT_JUST & ADC_0_TAD,
ADC_CH0 & ADC_INT_OFF & ADC_VREFPLUS_VDD & ADC_VREFMINUS_VSS,
ADC_4ANA & 0xf /*patch di g.dar*/);
(4 ana input, RA0-RA3)
and then
SetChanADC(ADC_CH0);
Delay_uS(5);
ConvertADC();
while(BusyADC());
ClrWdt();
YVel=ReadADC();
in YVel you get the converted value from Channel 0 (usually RA0)
Then , you just have to exapnd on this  )
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Re:USB mouse connections 18F
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Date: 2006/07/20 13:42
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By: chib
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Status: Visitor
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Hello,
Thanks a lot ! that's very helpful !!
yes I am working in C
I have just only 2 analog input so I suppose I must put : ADC_2ANA & 0xf
If I plug the analog input in RA0 and RA1 (because RA2 and 3 are the Vref + and - on my PIC) to have my two values converted should I put :
SetChanADC(ADC_CH0);
Delay_uS(5);
ConvertADC();
while(BusyADC());
ClrWdt();
YVel=ReadADC();
SetChanADC(ADC_CH1);
Delay_uS(5);
ConvertADC();
while(BusyADC());
ClrWdt();
XVel=ReadADC();
my values will be YVel and XVel ?
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Re:USB mouse connections 18F
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Date: 2006/07/20 13:44
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By: chib
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Status: Visitor
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I missed something ...
Your code is for 8 or 10 bits ?
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Re:USB mouse connections 18F
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Date: 2006/07/24 12:07
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By: chib
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Status: Visitor
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hello , how do you build Delay_uS(5); ? (5 ms ?) because the compilator don't find this function.
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