thank you very much，Is "lnk430fr6972.xcl" the linker's map file ? I found the code is following, the 4400h-FF7Fh is protected ,So I couldn't write the address could it? // --------------------------- // Memory Protection Unit (MPU) border // -Z(CONST)MPU_B1 // --------------------------- // Constant data // -Z(CONST)DATA16_C,DATA16_ID,TLS16_ID,DIFUNCT,CHECKSUM=4400-FF7F // --------------------------- // Memory Protection Unit (MPU) border // -Z(CONST)MPU_B2 // --------------------------- // Intellectual Property Encapsulation (IPE) // -Z(CONST)IPE_B1=4400-FF7F -Z(CODE)IPECODE16 -Z(CONST)IPEDATA16_C,IPE_B2 // ---------------------------
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