Hi Vincent,
see SET_TRIS_B() in the manual (available as a PDF). Also disable A/D or any
other peripheral that shares the pins.
CCS is an interesting compiler, but you might consider the Hi-Tech or PICC
compilers too (some free demos).
I prefer to code the setup or initialization my self.
TRISA = 0B11111111; /* EMFD, EMF3, FLOW, EMFR, NA, QUES, TRGR, TRGD, TRG3 in
*/
TRISB = 0B00110011; /* IRI, KEY, IROD, FLSH, HALL, HALLT, D2, D3 */
ADCON0 = 0; /* A/D off */
ADCON1 = 6; /* all digital inputs */
CVRCON = 0; /* turn off compare modules */
CMCON = 7; /* 7 is power on reset, 0 kills PORTA */
Alan KM6VV
Vincent wrote:
> Thank for this but that's not exactly what I
need !
>
> I have no problem with the '628. I do anything I need in asm.
> My problem is not with the internal register and the way to use them...
> My problem is more related to CCS it self...
>
> How do you configure Inputs/Outputs ports in CCS ???
>
> Actually, I am trying to translate my asm code in C... But it's a fail
for
> the moment because of IO malfuntions !!!
>
> If anyone has a snipet of code as a starting exemple, that would be
> sufficient !!
>
> Thanks for any helping hand !!
>
> Vincent
>
>
> -----Original Message-----
> From: piclist@picl... [mailto:piclist@picl...] On Behalf Of
> rtstofer
> Sent: mercredi 31 ao 2005 06:10
> To: piclist@picl...
> Subject: [piclist] Re: how do you make port a and B in or output in CCS ?
> --- In piclist@picl..., "Vincent" <vincent.clerc@i...>
wrote:
>
>>Hi all,
>>
>>working on a PIC16F628, I try to configure its I/O with pull-ups
>
> on B port
>
>>and set Input or output direction on port A and B...
>>
>>output_float(pin_A1);
>>output_float(pin_A2);
>>output_float(pin_A3);
>>output_float(pin_A5);
>>output_float(pin_A6);
>>output_float(pin_A7);
>>output_float(pin_B0);
>>output_float(pin_B6);
>>output_float(pin_B7);
>>
>>gives nothing...
>>
>>No mre than :
>>#use fixed_io(a_outputs=PIN_A4)
>>#use fixed_io(b_outputs=PIN_B1,PIN_B2,PIN_B3,PIN_B4,PIN_B5)
>>
>>
>>#USE STANDARD_IO(B)
>>#USE STANDARD_IO(A)
>>with
>> SET_TRIS_A( 0x10 ); // PORTA RA7-RA0 = Out Out Out In Out Out
>
> Out Out
>
>> SET_TRIS_B( 0xC1 ); // PORTB RB7-RB0 = In In Out Out Out Out Out
>
> In
>
>>
>>Can anyone help to clearly define what needs to be done ????
>>
>>By the way, any pointers to good documentation or tuts for CCS
>
> would be
>
>>great !!
>>The Help files is rather poor even if many exemples do well !!
>>
>>Thank a lot !
>>
>>Vince
> One of the things that will bite you with the '628 is CMCON. By
> default, PORTA is analog.
>
> You should get the datasheet for the device and the Mid-Range MPU
> manual.
>
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