Hi everyone, I am using the Keil to compiler my tiny program which copy more than 64KB from SRAM to Flash. the CPU is Dallas DS80C400. according the CPU the DPTR should be 24-bit. after I use mov dps, #1 mov dptr, #400000 the dptr register ahows 0x4000 only 16-bit not 24-bit. Is there some configure I missed. Please help me. Thanks. Dezhong
You need to put the device into the Contigious Mode. See the example: C:\Keil\c51\Examples\Dallas 390\C Reinhard