有时候我们需要在MDK中忽略掉某一个具体的warnning,怎么做呢？
只需在Misc Control中添加 “--diag_suppress=<num>” 就可以了， num就是Keil中的警告代码，，比如在工程中需要忽略........srcdriversgpiogpio.h(169): warning: #61-D: integer operation result is out of range 这个警告，只需添加 --diag_suppress=61，如下图所示：
我自己的截图：
..BspDAC8562dac8562.c(307): warning: #177-D: variable "cmd" was declared but never referenced
..Appglobalglobal.c(102): warning: #69-D: integer conversion resulted in truncation——这里没有屏蔽
testValue = 0xaacc;
..Appglobalglobal.c(73): warning: #550-D: variable "addr" was set but never used
uint32_t addr = 0;
..BspIO_driverIO_driver.c(1699): warning: #188-D: enumerated type mixed with another type
