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Additional memory

George Mylonas

Hi there

I've added some extra 64Kb of RAM on my KC167CR development board. This memory sould be \CS2 selectable at a starting address of 0x50000.

I got problems in selecting that RAM chip. The \CS2 is not going low is it should.

In C166 the memory settings are:

RAM1 (0x0000 to 0x10000) and
RAM2 (0x50000 to 0x60000)

In the monitor CONFIG.INC file the settings are:
%DEFINE (ADDRESS1) (0000H); Set CS1# Start Address 
%DEFINE (RANGE1)  (64K)       
.
.
%DEFINE (ADDRESS2) (50000H); Set CS2# Start Address
%DEFINE (RANGE2)   (64K)

But I cannot select the memory with \CS2.

Any ideas?
Thanks
George

Parents
  • 0 in reply to George Mylonas

    I am using RXtiny small
    External Memory settings:
    start size
    #1 ROM 0x0 0x10000
    #2 RAM 0x10000 0x40000


    Monitor settings for Phytec MM167 Board

    You need under Options - L166 Misc RESERVE:
    8H-0BH, 0ACH-0AFH

    For correct using the Monitor with a Phytec
    developent board:
    connect the PC COM port to P1 connector

    Jumper Settings of the development board:

    XX = jumper O = free pin

    O X X O O O X X O X X O O O O O O O X O O O X O O X X O O X O O O
    O O O O X X X X X X O O O O O O O O X O O O X O O O X X O X O X X
    JP20

    JP9 = open
    JP1 = closed between 1+2

    Simultaneously press the Reset (S1) and Boot (S2) switches on the
    Development Board, first releasing the Reset (S1) and then, two or
    three seconds later, release the Boot (S2) switch.
    This sequence of pressing and releasing the Reset (S1) and Boot (S2)
    switches renders the miniMODUL-167 into the Bootstrap mode.


    BOOTSTRAP MODE
    ==============

    Memory map:
    00:0000h - 00:EFFFh free RAM
    00:F000h - 00:FFFFh internal RAM and SFR's
    01:0000h - 0F:E9FFh free RAM (optional)
    0F:EA00h - 0F:EBFFh RAM used by Monitor (Data Area)
    0F:EC00h - 0F:FFFFh RAM used by Monitor (Code Area)
    10:0000h - 1F:FFFFh optinal free RAM (optional)
    20:0000h - 23:FFFFh Flash ROM
    24:0000h - .... Flash ROM (optional)


Reply
  • 0 in reply to George Mylonas

    I am using RXtiny small
    External Memory settings:
    start size
    #1 ROM 0x0 0x10000
    #2 RAM 0x10000 0x40000


    Monitor settings for Phytec MM167 Board

    You need under Options - L166 Misc RESERVE:
    8H-0BH, 0ACH-0AFH

    For correct using the Monitor with a Phytec
    developent board:
    connect the PC COM port to P1 connector

    Jumper Settings of the development board:

    XX = jumper O = free pin

    O X X O O O X X O X X O O O O O O O X O O O X O O X X O O X O O O
    O O O O X X X X X X O O O O O O O O X O O O X O O O X X O X O X X
    JP20

    JP9 = open
    JP1 = closed between 1+2

    Simultaneously press the Reset (S1) and Boot (S2) switches on the
    Development Board, first releasing the Reset (S1) and then, two or
    three seconds later, release the Boot (S2) switch.
    This sequence of pressing and releasing the Reset (S1) and Boot (S2)
    switches renders the miniMODUL-167 into the Bootstrap mode.


    BOOTSTRAP MODE
    ==============

    Memory map:
    00:0000h - 00:EFFFh free RAM
    00:F000h - 00:FFFFh internal RAM and SFR's
    01:0000h - 0F:E9FFh free RAM (optional)
    0F:EA00h - 0F:EBFFh RAM used by Monitor (Data Area)
    0F:EC00h - 0F:FFFFh RAM used by Monitor (Code Area)
    10:0000h - 1F:FFFFh optinal free RAM (optional)
    20:0000h - 23:FFFFh Flash ROM
    24:0000h - .... Flash ROM (optional)


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