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What's effect will it be if my memory map show some gap?

Hello , dear friends:

Could someone tell me if my memory map has some gaps, does it all right?

 
            * * * * * * *   D A T A   M E M O R Y   * * * * * * *
            REG     0000H     0008H     ABSOLUTE     "REG BANK 0"
            DATA    0008H     0011H     UNIT         ?DT?IIC212
            DATA    0019H     0007H     UNIT         ?DT?FAN
            DATA    0020H     0003H     UNIT         ?DT?MAIN
            DATA    0023H     0001H     UNIT         ?DT?DELAY
            BIT     0024H.0   0000H.5   UNIT         _BIT_GROUP_
            BIT     0024H.5   0000H.2   UNIT         ?BI?I2C
            BIT     0024H.7   0000H.1   UNIT         ?BI?TIMER
            DATA    0025H     003BH     UNIT         _DATA_GROUP_
            DATA    0060H     0010H     UNIT         ?DT?I2C
            DATA    0070H     0005H     UNIT         ?DT?TIMER
            DATA    0075H     0004H     ABSOLUTE     
            DATA    0079H     0001H     UNIT         ?DT?EEPROM
                    007AH     0006H                  *** GAP ***
            IDATA   0080H     0010H     ABSOLUTE     
            IDATA   0090H     0001H     UNIT         ?ID?MAIN
                    0091H     0002H                  *** GAP ***
            IDATA   0093H     0001H     ABSOLUTE     
            IDATA   0094H     0001H     ABSOLUTE     
            IDATA   0095H     0001H     ABSOLUTE     
            IDATA   0096H     0001H     ABSOLUTE     
            IDATA   0097H     0001H     ABSOLUTE 

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  • Dear Eric, thanks for your suggestion for me. You mean , I should specify the idata address at 0x7F ? If I don't put it after the data, what's the effect will it be?
    With Keil defaults, IDATA will start at the end of DATA. Since all 256 bytes are accessible as IDATA, this is the best way to do it for max mem space

    Erik

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  • Dear Eric, thanks for your suggestion for me. You mean , I should specify the idata address at 0x7F ? If I don't put it after the data, what's the effect will it be?
    With Keil defaults, IDATA will start at the end of DATA. Since all 256 bytes are accessible as IDATA, this is the best way to do it for max mem space

    Erik

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