PEEK

Action

Returns the content of a register.

 

 

Syntax

var = PEEK( address )

 

 

Remarks

Var	Numeric variable that is assigned with the content of the memory location address
Address	Numeric variable or constant with the address location.(0-31)

 

Peek() will read the content of a register.

Inp() can read any memory location

 

 

See also

POKE , CPEEK , INP , OUT , SETREG, GETREG

 

 

Example

'-----------------------------------------------------------------------------------------
'name : peek.bas
'copyright : (c) 1995-2005, MCS Electronics
'purpose : demonstrates PEEk, POKE, CPEEK, INP and OUT
'micro : Mega48
'suited for demo : yes
'commercial addon needed : no
'-----------------------------------------------------------------------------------------
 
$regfile = "m162def.dat" ' specify the used micro
$crystal = 4000000 ' used crystal frequency
$baud = 19200 ' use baud rate
$hwstack = 32 ' default use 32 for the hardware stack
$swstack = 10 ' default use 10 for the SW stack
$framesize = 40 ' default use 40 for the frame space
 
Dim I As Integer , B1 As Byte
'dump internal memory
For I = 0 To 31 'only 32 registers in AVR
B1 = Peek(i) 'get byte from internal memory
Print Hex(b1) ; " ";
'Poke I , 1 'write a value into memory
Next
Print 'new line
'be careful when writing into internal memory !!
 
'now dump a part ofthe code-memory(program)
For I = 0 To 255
B1 = Cpeek(i) 'get byte from internal memory
Print Hex(b1) ; " ";
Next
'note that you can not write into codememory!!
 
Out &H8000 , 1 'write 1 into XRAM at address 8000
B1 = Inp(&H8000) 'return value from XRAM
Print B1
End

Languages	English • Deutsch