在studio中使用drv_rtc报错，为什么类型找不到？

发布于 2021-11-23 10:00:42 浏览：1762 订阅该版

```
make -j4 all 
arm-none-eabi-gcc "../drivers/drv_rtc.c"
../drivers/drv_rtc.c:39:8: error: unknown type name 'time_t'
 static time_t get_rtc_timestamp(void)
        ^
../drivers/drv_rtc.c: In function 'get_rtc_timestamp':
../drivers/drv_rtc.c:43:15: error: storage size of 'tm_new' isn't known
     struct tm tm_new;
               ^
../drivers/drv_rtc.c:56:12: warning: implicit declaration of function 'mktime' [-Wimplicit-function-declaration]
     return mktime(&tm_new);
            ^
../drivers/drv_rtc.c:43:15: warning: unused variable 'tm_new' [-Wunused-variable]
     struct tm tm_new;
               ^
../drivers/drv_rtc.c: At top level:
../drivers/drv_rtc.c:59:36: error: unknown type name 'time_t'
 static rt_err_t set_rtc_time_stamp(time_t time_stamp)
                                    ^
../drivers/drv_rtc.c: In function 'rt_rtc_control':
../drivers/drv_rtc.c:188:13: warning: implicit declaration of function 'set_rtc_time_stamp' [-Wimplicit-function-declaration]
         if (set_rtc_time_stamp(*(rt_uint32_t *)args))
             ^
../drivers/drv_rtc.c: At top level:
../drivers/drv_rtc.c:211:17: error: conflicting types for 'rt_hw_rtc_register'
 static rt_err_t rt_hw_rtc_register(rt_device_t device, const char *name, rt_uint32_t flag)
                 ^
In file included from D:\DATA\git\QT5.0\rt_studio\QT5L431test\rt-thread\components\drivers\include/rtdevice.h:33:0,
                 from ../drivers/drv_rtc.c:13:
D:\DATA\git\QT5.0\rt_studio\QT5L431test\rt-thread\components\drivers\include/drivers/rtc.h:42:10: note: previous declaration of 'rt_hw_rtc_register' was here
 rt_err_t rt_hw_rtc_register(rt_rtc_dev_t  *rtc,
          ^
../drivers/drv_rtc.c: In function 'get_rtc_timestamp':
../drivers/drv_rtc.c:57:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
make: *** [drivers/subdir.mk:69: drivers/drv_rtc.o] Error 1
"make -j4 all" terminated with exit code 2. Build might be incomplete.

09:50:47 Build Failed. 5 errors, 4 warnings. (took 8s.255ms)
```

RT-Thread Studio
版本: 2.1.3

RT-Thread v4.0.4
基于芯片创建工程，芯片型号：STM32L431RCTX

初步怀疑是系统未包含C库，但是在工程中已经使能了libc
不知道是什么原因，请给予帮助
![1637632613.jpg](https://oss-club.rt-thread.org/uploads/20211123/a7772b3b9da1a2861e52edb41d75500f.jpg)

![image.png](https://oss-club.rt-thread.org/uploads/20211123/a8dee67e33d200960fbfa5286e89ca04.png)

![image.png](https://oss-club.rt-thread.org/uploads/20211123/81a77dfabefee55fbe35d16f0494d946.png)

出出啊 2021-11-23

恃人不如自恃，人之为己者不如己之自为也

Ray 2021-11-23

企鹅

在drv_rtc.c中包含sys\time.h后，会提示冲突
```
make -j4 all 
arm-none-eabi-gcc "../drivers/board.c"
arm-none-eabi-gcc "../drivers/drv_adc.c"
arm-none-eabi-gcc "../drivers/drv_clk.c"
arm-none-eabi-gcc "../drivers/drv_common.c"
../drivers/drv_common.c:17:13: warning: 'reboot' defined but not used [-Wunused-function]
 static void reboot(uint8_t argc, char **argv)
             ^
arm-none-eabi-gcc "../drivers/drv_eth.c"
arm-none-eabi-gcc "../drivers/drv_flash_l4.c"
arm-none-eabi-gcc "../drivers/drv_gpio.c"
arm-none-eabi-gcc "../drivers/drv_hwtimer.c"
arm-none-eabi-gcc "../drivers/drv_pwm.c"
arm-none-eabi-gcc "../drivers/drv_qspi.c"
arm-none-eabi-gcc "../drivers/drv_rtc.c"
arm-none-eabi-gcc "../drivers/drv_sdio.c"
../drivers/drv_rtc.c:212:17: error: conflicting types for 'rt_hw_rtc_register'
 static rt_err_t rt_hw_rtc_register(rt_device_t device, const char *name, rt_uint32_t flag)
                 ^
In file included from D:\DATA\git\QT5.0\rt_studio\QT5L431test\rt-thread\components\drivers\include/rtdevice.h:33:0,
                 from ../drivers/drv_rtc.c:13:
D:\DATA\git\QT5.0\rt_studio\QT5L431test\rt-thread\components\drivers\include/drivers/rtc.h:42:10: note: previous declaration of 'rt_hw_rtc_register' was here
 rt_err_t rt_hw_rtc_register(rt_rtc_dev_t  *rtc,
          ^
arm-none-eabi-gcc "../drivers/drv_soft_i2c.c"
arm-none-eabi-gcc "../drivers/drv_spi.c"
make: *** [drivers/subdir.mk:69: drivers/drv_rtc.o] Error 1
make: *** Waiting for unfinished jobs....
"make -j4 all" terminated with exit code 2. Build might be incomplete.

10:16:46 Build Failed. 3 errors, 1 warnings. (took 11s.567ms)
```