Hello all, My target is based on micro T89C51RD2 (with 64K flash, 1K RAM and 2K EEPROM), also in my target 32K SRAM and 8K EEPROM. I need that some values of some parameters will not bee initialized to zero after reset (not power down). I reed and implemented what was written in post http://www.keil.com/support/docs/826.htm, but it still not working. In the STARTUP.A51 I changed the XDATASTART and XDATALEN as follow: XDATASTART EQU 1C20H XDATALEN EQU 10000H In my program I locate the variable in addr 0x0000: volatile rcvMSG xdata stRxBuff[NUM][LEN] _at_ 0x1000; Am I missing something? Please help, Ruven
Hi Erik, Thanks for your respond. I tried to change XDATALEN from 10000H to E3E0H (10000H-1C20H), now I receive assembling error: STARTUP.A51(30): error A45: UNDEFINED SYMBOL (PASS-2) When I double click this message uVision points on XDATALEN. P.S. I don't think it's relevant to this case but I'm using the RTX-Full OS. Regards, Roberto