In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Rsadeika wrote:

Below is a short snippet of the code where I made the changes. In the variables area I now get a comiler error 3, variable exceed available ram. The cmdCode_MSB var Byte, is high lighted in yellow. I thought the SX52 had over 200 bytes of ram available, I do not think that I have over two hundred variables in the code. 

 

' -------------------------------------------------------------------------
' Device Settings
' -------------------------------------------------------------------------

DEVICE          SX52, OSCHS2, BOR42
FREQ            50_000_000
ID              "MyBot"


' -------------------------------------------------------------------------
' IO Pins
' -------------------------------------------------------------------------

RX              PIN     Rd.7 INPUT
TX              PIN     Rd.6 OUTPUT

IR              PIN     RB.0 INPUT


' -------------------------------------------------------------------------
' Constants
' -------------------------------------------------------------------------

' Dividers for ISR UART
' -- values set for 4.34 uS interrupt rate

Baud2400        CON     96
Baud4800        CON     48
Baud9600        CON     24
Baud19K2        CON     12
Baud38K4        CON     6
Baud57K6        CON     4

Baud1x0         CON     Baud57K6                ' 1 bit period (ISR counts)
Baud1x5         CON     Baud1x0 * 3 / 2         ' 1.5 bit periods


Yes             CON     1
No              CON     0


' -------------------------------------------------------------------------
' Variables
' -------------------------------------------------------------------------

flags           VAR     Byte
rxReady         VAR     flags.0                 ' serial byte avialable
rxCmd           VAR     flags.1                 ' receiving IR command
rxBit           VAR     flags.2                 ' measuring bit width?
hasKey          VAR     flags.3                 ' IR cmd code available

idx             VAR     Byte

tix             VAR     Word                    ' (ISR) for DELAY_MS

'serial          VAR     Byte (16)               ' bank for serial vars
'txCount         VAR     serial(0)
'txDivide        VAR     serial(1)
'txLo            VAR     serial(2)
'txHi            VAR     serial(3)
'rxCount         VAR     serial(4)
'rxDivide        VAR     serial(5)
'rxByte          VAR     serial(6)
txCount  var Byte
txDivide  var Byte
txLO  var Byte
txHi  var Byte
rxCount var Byte
rxDivide var Byte
rxByte var Byte

'sircs           VAR     Byte (16)               ' bank for SIRCS vars
'sircsTix        VAR     sircs(0)                ' ISR divider
'cmdWork_LSB     VAR     sircs(1)                ' work space for cmd
'cmdWork_MSB     VAR     sircs(2)
'bitCount        VAR     sircs(3)                ' track bits received
'bitWidth        VAR     sircs(4)                ' measure bit width
'cmdCode_LSB     VAR     sircs(5)                ' key code
'cmdCode_MSB     VAR     sircs(6)                ' device code
'keyCode         VAR     sircs(5)
'devCode         VAR     sircs(6)
sircsTix  var Byte
cmdWork_LSB  var Byte
cmdWork_MSB var Byte
bitCount var Byte
bitWidth var Byte
cmdCode_LSB var Byte
cmdCode_MSB var Byte
keyCode var Byte
devCode var Byte

tmpB1           VAR     Byte                    ' work vars
tmpW1           VAR     Word

---------- End of Message ----------


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