uart.err

ARM 44b0x培训教程完整源代码下载

"uart.c", line 119: Warning: signed constant overflow: '<<'
"uart.c", line 135: Warning: no side effect in void context: 'unary *<expr>'
"uart.c", line 228: Warning: signed constant overflow: '<<'
"uart.c", line 322: Warning: signed constant overflow: '<<'
"uart.c", line 338: Warning: no side effect in void context: 'unary *<expr>'
"uart.c", line 456: Warning: signed constant overflow: '<<'
"uart.c", line 721: Warning: signed constant overflow: '<<'
"uart.c", line 722: Warning: signed constant overflow: '<<'
uart.c: 8 warnings, 0 errors, 0 serious errors