led灯无法点亮而且会报错是什么原因

发布于 2020-06-05 22:50:13 浏览：2447 订阅该版

22:43:09 **** Incremental Build of configuration Debug for project test ****
make -j8 all 
arm-none-eabi-gcc "../applications/main.c"
../applications/main.c: In function 'main':
../applications/main.c:20:18: warning: implicit declaration of function 'GET_PIN' [-Wimplicit-function-declaration]
 #define LED0_PIN GET_PIN(E,3)
                  ^
../applications/main.c:25:17: note: in expansion of macro 'LED0_PIN'
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
                 ^
../applications/main.c:20:26: error: 'E' undeclared (first use in this function)
 #define LED0_PIN GET_PIN(E,3)
                          ^
../applications/main.c:25:17: note: in expansion of macro 'LED0_PIN'
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
                 ^
../applications/main.c:20:26: note: each undeclared identifier is reported only once for each function it appears in
 #define LED0_PIN GET_PIN(E,3)
                          ^
../applications/main.c:25:17: note: in expansion of macro 'LED0_PIN'
     rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
                 ^
make: *** [applications/subdir.mk:18: applications/main.o] Error 1
"make -j8 all" terminated with exit code 2. Build might be incomplete.

22:43:10 Build Failed. 2 errors, 1 warnings. (took 843ms)