keil c khi bien dịch ra file hẽ nó có cảnh báo sau là thế nào nhỉ. minh có code dài lắm mà khi biên dịch chỉ được vài dòng thôi
Build target 'Target 1'
assembling STARTUP.A51...
linking...
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL
SYMBOL: ?C_START
MODULE: STARTUP.obj (?C_STARTUP)
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL
SYMBOL: ?C_START
MODULE: STARTUP.obj (?C_STARTUP)
ADDRESS: 000DH
Program Size: data=9.0 xdata=0 code=15
creating hex file from "thang"...
"thang" - 0 Error(s), 2 Warning(s).
Build target 'Target 1'
assembling STARTUP.A51...
linking...
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL
SYMBOL: ?C_START
MODULE: STARTUP.obj (?C_STARTUP)
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL
SYMBOL: ?C_START
MODULE: STARTUP.obj (?C_STARTUP)
ADDRESS: 000DH
Program Size: data=9.0 xdata=0 code=15
creating hex file from "thang"...
"thang" - 0 Error(s), 2 Warning(s).
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