usbdown.err

s3c24a0固件测试代码 ? ? ? ? ?啊

"src\usbdown.c", line 126: Warning: C2206W: Undefined macro 'USBDMA' in #if - treated as 0
"src\usbdown.c", line 194: Warning: C2206W: Undefined macro 'USBDMA' in #if - treated as 0
"src\usbdown.c", line 225: Warning: C2206W: Undefined macro 'USBDMA' in #if - treated as 0
"src\usbdown.c", line 274: Warning: C2870W: variable 'key' declared but not used
"src\usbdown.c", line 274: Warning: C2870W: variable 'first' declared but not used
"src\usbdown.c", line 274: Warning: C2870W: variable 'temp' declared but not used
"src\usbdown.c", line 274: Warning: C2870W: variable 'cs' declared but not used
"src\usbdown.c", line 274: Warning: C2870W: variable 'i' declared but not used
"src\usbdown.c", line 318: Warning: C2206W: Undefined macro 'USBDMA' in #if - treated as 0
"src\usbdown.c", line 386: Warning: C2206W: Undefined macro 'USBDMA' in #if - treated as 0
"src\usbdown.c", line 417: Warning: C2206W: Undefined macro 'USBDMA' in #if - treated as 0
"src\usbdown.c", line 466: Warning: C2870W: variable 'key' declared but not used
"src\usbdown.c", line 466: Warning: C2870W: variable 'first' declared but not used
"src\usbdown.c", line 466: Warning: C2870W: variable 'temp' declared but not used
"src\usbdown.c", line 466: Warning: C2870W: variable 'cs' declared but not used
"src\usbdown.c", line 466: Warning: C2870W: variable 'i' declared but not used
"src\usbdown.c", line 491: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\usbdown.c", line 492: Warning: C2917W: no side effect in void context: 'unary *<expr>'
src\usbdown.c: 18 warnings, 0 errors, 0 serious errors