I get false answers from the controller back - always $FF and nothing meaningfull !I will attach the source code here but can also pm it on request !
Any help is highly appreciated !!!!!!!!!!
Thanks !
Tony
Code: Select all
'///////////////////////////////////////////////////
'// Playstation 2 Controller Interface //
'// Created by: Tony Knors //
'// December 1, 2007 //
'// //
'// ATMEGA16 on EASYAVR5 //
'// Programming Language: MikroBasic AVR //
'// //
'// Summary: //
'// This program reads the ID, Status a Values //
'// of a Playstation2 controller //
'// and outputs the status vgia RS232 To terminal //
'// //
'// //
'// Pin Out for ATMEGA16: //
'// PortA.6 -> psxATT //
'// PortA.4 -> psxDAT //
'// PortA.5 -> psxCMD //
'// PortA.7 -> psxCLK //
'// //
'// Uses Pullup Resistor on Port A.4 //
'// //
'///////////////////////////////////////////////////
program TESTPSX
'---------------------------------------------------
' Define ports
'---------------------------------------------------
symbol psxCLK = PortA.7
symbol psxCMD = PortA.5
symbol psxDAT = PortA.4
symbol psxATT = PortA.6
'---------------------------------------------------
' Variables
'---------------------------------------------------
dim psxOut as byte
dim psxIn as byte
dim psxID as byte
dim i as byte
dim psxStatus as byte
dim psxLeftB as byte
dim psxRightB as byte
dim psxRJoyX as byte
dim psxRJoyY as byte
dim psxLJoyX as byte
dim psxLJoyY as byte
dim text as string[7]
'---------------------------------------------------
' Sub Procedures
'////////////////////////////////////
'---------------------------------------------------
' Send and Receive data simultaneously
'---------------------------------------------------
sub procedure psxTxRx(dim byref byteOut, byteIn as byte)
byteIn=0 'Reset Receive byte
for i = 0 to 7 'Read data bits LSB to MSB
psxCMD=testbit(byteOut,i) 'Prepare first bit to send
psxCLK=0 'Generate clock pulse
delay_us(25) 'Used to regulate communication speed
if psxDAT = 0 then
Setbit(byteIn,i) 'Low Data line indicates set bit
end if
psxCLK=1 'End clock pulse
Delay_us(25) 'Regulate speed 25
next i
end sub
'---------------------------------------------------
' Program Start
'---------------------------------------------------
main:
Soft_Uart_Init(PORTD, 0,1,9600,0)
DDRA=%11101111 'All ports Output except P4 (DAT)
PortA.7=1 'Set Clock High
PortA.6=1 'Set ATT High
PortA.5=0 'All Others Low
PortA.4=0
PortA.3=0
PortA.2=0
PortA.1=0
PortA.0=0 ' For Test Only
Delay_ms(200) ' Wait a bit
'---------------------------------------------------
' main Loop
'---------------------------------------------------
loop:
psxATT=0 'psxAtt low, Activates Controller
Delay_us(50)
'-------------------------------------------------------------------
psxOut=0x01 'Start Signal
psxTxRx(psxOut,psxIn) ' Send and get answer from controller
Soft_Uart_Write_Text("Start Byte Sent:") ' Write to RS2323 wat was sent
WordToStr(PsxOut,text)
Soft_Uart_Write_Text(text)
Soft_Uart_Write($0D)
Soft_Uart_Write($0A)
'-------------------------------------------------------------------
WordToStr(PsxIn,text)
Soft_Uart_Write_Text("Result Received:") ' Wrire to RS232 Wat was received
Soft_Uart_Write_Text(text)
Soft_Uart_Write($0D)
Soft_Uart_Write($0A)
'-------------------------------------------------------------------
psxOut=0x42 'Request Status
psxTxRx(psxOut,psxIn)
Soft_Uart_Write_Text("Status Requested:")
WordToStr(PsxOut,text)
Soft_Uart_Write_Text(text)
Soft_Uart_Write($0D)
Soft_Uart_Write($0A)
'-------------------------------------------------------------------
psxID=psxIn
Soft_Uart_Write_Text("ID Received:") 'Simultaneously receive controller ID
WordToStr(psxid,text)
Soft_Uart_Write_Text(text)
Soft_Uart_Write($0D)
Soft_Uart_Write($0A)
'-------------------------------------------------------------------
psxOut=0 'Clear psxOut
psxTxRx(psxOut,psxIn) 'Get psxStatus
psxStatus=psxIn
Soft_Uart_Write_Text("Status:") 'Simultaneously receive controller ID
WordToStr(psxin,text)
Soft_Uart_Write_Text(text)
'---------------------------------------------------
PsxATT = 1
Goto loop
'---------------------------------------------------
' Future development
'---------------------------------------------------
'psxTxRx(psxOut,psxIn) 'Get Left side buttons
'psxLeftB=psxIn
'psxTxRx(psxOut,psxIn) 'Get Right side buttons
'psxRightB=psxIn
'psxTxRx(psxOut,psxIn) 'Get Right joystick X-axis byte
'psxRJoyX=psxIn
'WordToStr(psxrjoyx,text)
'Soft_Uart_write_Text("JoyRX:")
'Soft_Uart_write_Text(text)
'psxTxRx(psxOut,psxIn) 'Get Right joystick Y-axis byte
'psxRJoyY=psxIn
'psxTxRx(psxOut,psxIn) 'Get Left joystick X-axis byte
'psxLJoyX=psxIn
'psxTxRx(psxOut,psxIn) 'Get Left joystick Y-axis byte
'psxLJoyY=psxIn
'Delay_us(50)
'psxATT=1 'Release controller by setting psxATT high
'PortA.0=psxRightB.6 'RA0 equals status of "X" Button
'PortA.1=psxRightB.5 'RA1 equals status of "O" Button
'Delay_ms(10)
'---------------------------------------------------
end.