How to Enable SDO2 PIC18F26K22

[buntger]

Hello,

I am using this code to enable SDO2 (PORTB.3) pin.24 (PIC 18F26K22) , but does not work.
For SPI Display.

Something is missing or something is wrong with the code.

Code Active SPI (SDO2)

  SSP2CON1=         %00000001          ' Clock FOSC/16 '%
  Symbol SSP2EN     = SSP2CON1.5     ' SSP Enable bit
  Symbol CKP2       = SSP2CON1.4     ' Clock Polarity Select
  Symbol SMP2       = SSP2STAT.7     ' Data input sample bit
  Symbol CKE2       = SSP2STAT.6     ' Clock Edge Select bit
  Symbol BF2        = SSP2STAT.0     ' buffer full status bit 1 = buffer full
  Symbol SSP2IF     = PIR3.7         ' Synchronous Serial Port Interrupt Flag Bit
  OSCCON=   %01110000                      ' HFINTOSC – (16 MHz)'%

THX

[Karamel]

Are you able to send any code from spi2 to outside? Could you check it with any logic analyzer? if it is okay, your lcd configurations or anything has a problem. if it is not okay, you must solve opening spi2 unit correctly.

Best Regards,
Karamel

[kantirici]

it must be digital I/O. Did you make it ?

[buntger]

Hello,

My question is that if the code is good for the open MSSP2 Pic 18F26K22 PortB.
For now, it does not work.

New Code: (does not work.)

  SSP2CON1=         %00100001          ' Clock FOSC/16 '%
  Symbol SSP2EN     = SSP2CON1.5     ' SSP Enable bit
  Symbol CKP2       = SSP2CON1.4     ' Clock Polarity Select
  Symbol SMP2       = SSP2STAT.7     ' Data input sample bit
  Symbol CKE2       = SSP2STAT.6     ' Clock Edge Select bit
  Symbol BF2        = SSP2STAT.0     ' buffer full status bit 1 = buffer full
  Symbol SSP2IF     = PIR3.7         ' Synchronous Serial Port Interrupt Flag Bit
  OSCCON=   %01110000                      ' HFINTOSC – (16 MHz)'%
 TRISB=   %00000000                 'All PortB Outs

THX.

[Karamel]

Nope. kantirici mentor has said that you must define digital i-o these pins of port. Actually, i have worked with picmicrocontrollers for very short times but i can remember that these family must be had a ADCON e.t registers. Thus, you must arrange this register for digital io selections.

You can also ask your questions which are about pic basic pro or pic microcontrollers to @Maxim mentor

Good luck.

[buntger]

Hi Karamel,

The PortB already enabled I / O digital.

THX.

[buntger]

Hi,

(But Code does not work)...

The "Amicus18_SPI.inc" there as two parts for SPI1 and SPI2.
with "OpenSI2()" Selecting the DSO2 (SPI2).

I have also tried all the pSyncMode, pBusMode, pSmpPhase... Nothing..!!

I have included this:

Include "Amicus18_SPI.inc"
OpenSPI2 (SMPEND, MODE_00, SPI_FOSC_16)

Code OpenSPI2 (only):

$ifndef __SPI_INC_
$define __SPI_INC_
'
' SPI peripheral library for Amicus18
'
$define SMPEND        %10000000          ' Input data sample at end of data out
$define SMPMID        %00000000          ' Input data sample at middle of data out


$define MODE_00       %00000000          ' Setting for SPI bus Mode 0,0
$define MODE_01       %00000001          ' Setting for SPI bus Mode 0,1
$define MODE_10       %00000010          ' Setting for SPI bus Mode 1,0
$define MODE_11       %00000011          ' Setting for SPI bus Mode 1,1


' SSPCON1 Register
$define SSPENB        %00100000          ' Enable serial port and configures SCK, SDO, SDI


$define SPI_FOSC_4    %00000000          ' SPI Master mode, clock = Fosc/4
$define SPI_FOSC_16   %00000001          ' SPI Master mode, clock = Fosc/16
$define SPI_FOSC_64   %00000010          ' SPI Master mode, clock = Fosc/64
$define SPI_FOSC_TMR2 %00000011          ' SPI Master mode, clock = TMR2 output/2
$define SLV_SSON      %00000100          ' SPI Slave mode, /SS pin control enabled
$define SLV_SSOFF     %00000101          ' SPI Slave mode, /SS pin control disabled




'***************************************************************
' Amicus18 Revision 2
'***************************************************************
$if (_device = _18F26K22)


'-----------------------------------------------------------------------------------
' CloseSPI2


$define CloseSPI2() SSP2CON1 = SSP2CON1 & $DF


'-----------------------------------------------------------------------------------
' DataReadySPI2: Test if SSP2BUF register is full


$define DataReadySPI2() SSP2STATbits_BF


'-----------------------------------------------------------------------------------
' Macro Name    : OpenSPI2
' Return Value  : None
' Parameters    : SSP2 peripheral setup values
' Notes         : Sets up the SSP2 module for master or slave operation
'
' Syntax OpenSPI2 pSyncMode , pBusMode , pSmpPhase
'
$define OpenSPI2(pSyncMode,pBusMode,pSmpPhase) _OpenSPI2 pSyncMode, pBusMode, pSmpPhase


_OpenSPI2 Macro- pSyncMode, pBusMode, pSmpPhase
    SSP2STAT = SSP2STAT & $3F       ' Power on state
    SSP2CON1 = $00                  ' Power on state
    #if(pSyncMode != 0)
        Movlw (pSyncMode)
        Iorwf SSP2CON1,f            ' Select serial mode
    #endif
    #if(pSmpPhase != 0)
        Movlw (pSmpPhase)
        Iorwf SSP2STAT,f            ' Select data input sample phase
    #endif


    #if(pBusMode == 0)              ' SPI bus mode 0,0
        SSP2STATbits_CKE = 1        ' Data transmitted on rising edge
    #endif
    #if(pBusMode == 2)              ' SPI bus mode 1,0
        SSP2STATbits_CKE = 1        ' Data transmitted on falling edge
        SSP2CON1bits_CKP = 1        ' Clock idle state high
    #endif
    #if(pBusMode == 3)              ' SPI bus mode 1,1
        SSP2CON1bits_CKP = 1        ' Clock idle state high
    #endif


    #if(pSyncMode == 4)             ' Slave mode with /SS enable
      TRISB.1 = 1                   ' Define clock pin as input
      TRISB.0 = 1                   ' Define /SS2 pin as input
    #endif


    #if(pSyncMode == 5)             ' Slave mode without /SS enable
      TRISB.1 = 1                ' Define clock pin as input
    #else                           ' Master mode, define clock pin as output
      TRISB.1 = 0                   ' Define clock pin as output
    #endif


    TRISB.2 = 1                     ' Define SDI pin as input
    TRISB.3 = 0                     ' Define SDO pin as output


    SSP2CON1.5 = 1                  ' Enable synchronous serial port
Endm
'-----------------------------------------------------------------------------------
' Macro Name     : WriteSPI2
' Return Value   : Input data can be picked up by reading SSP2BUF straight after the WriteSPI2 macro
' Parameter      : Single 8-bit variable for SPI2 bus.
' Description    : Write a single byte (8-bits) to the SPI2 bus.
'
$define WriteSPI2(pDataOut) '
    WREG = pDataOut '
    _WriteSPI2


_WriteSPI2 Macro-
    GoSub __WriteSPI2
Endm


#ifMacro- _WriteSPI2
__WriteSPI2:
    SSP2STATbits_BF = 0             ' Empty the SSP2BUF buffer flags
    PIR3bits_SSP2IF = 0             ' Clear the interrupt flag
    SSP2BUF = WREG                  ' Place the data to send into SSP2BUF
    Btfss PIR3bits_SSP2IF           ' \
    Bra $ - 2                       ' / Wait until cycle complete
    WREG = SSP2BUF                  ' Read SSP2BUF into WREG
    Return
#endIfMacro-


'-----------------------------------------------------------------------------------
' Macro Name    : ReadSPI2
' Return Value  : Contents of SSP2BUF register
' Parameters    : None
' Description   : Read byte\s from the SPI2 bus.
'
$define ReadSPI2() _ReadSPI2


_ReadSPI2 Macro- '\Byte
    GoSub __ReadSPI2
    Return_Wreg
Endm


#ifMacro- _ReadSPI2
__ReadSPI2:
    WREG = SSP2BUF                  ' Empty the SSP2BUF buffer and clear flags
    PIR3bits_SSP2IF = 0             ' Clear interrupt flag
    SSP2BUF = $FF                   ' Initiate bus cycle
    Btfss PIR3bits_SSP2IF           ' \
    Bra $ - 2                       ' / Wait until cycle complete
    WREG = SSPBUF                   ' Read SSP2BUF into WREG
    Return
#endIfMacro-


$define SPI2_Write(pDataOut) WriteSPI2(pDataOut)
$define SPI2_Read() ReadSPI2()
$define SPI2_Open(pSyncMode,pBusMode,pSmpPhase) OpenSPI2(pSyncMode,pBusMode,pSmpPhase)
$define SPI2_DataReady() SSP2STATbits_BF
$define SPI2_Close() SSP2CON1 = SSP2CON1 & $DF


$endif
'---------------------------------------------------------
_SPI_MAIN_:


$endif

THX.