Write a program in the IAR environment to achieve the following functions: 1, in the first group of digital number displayed on the task of running 2, call the hook function OSTimeTickHook () in the second set of digital tube display system clock interrupt did not occur during the 500 , the task scheduler for scheduling times.

Stm32_ucos_2-1
..............\Stm32_ucos_2-1
..............\..............\project
..............\..............\.......\Debug
..............\..............\.......\.....\Exe
..............\..............\.......\.....\...\gprs.bin
..............\..............\.......\.....\...\gprs.out
..............\..............\.......\.....\List
..............\..............\.......\.....\Obj
..............\..............\.......\.....\...\BoardInit.o
..............\..............\.......\.....\...\cortexm3_macro.o
..............\..............\.......\.....\...\gprs.o
..............\..............\.......\.....\...\gprs.pbd
..............\..............\.......\.....\...\gprs.pbi
..............\..............\.......\.....\...\Hex.o
..............\..............\.......\.....\...\I2C.o
..............\..............\.......\.....\...\led.o
..............\..............\.......\.....\...\main.o
..............\..............\.......\.....\...\pdu.o
..............\..............\.......\.....\...\pdu.pbi
..............\..............\.......\.....\...\stm32f10x_it.o
..............\..............\.......\.....\...\stm32f10x_vector.o
..............\..............\.......\.....\...\stm32_equip.o
..............\..............\.......\gprs.dep
..............\..............\.......\gprs.ewd
..............\..............\.......\gprs.ewp
..............\..............\.......\gprs.eww
..............\..............\.......\settings
..............\..............\.......\........\gprs.cspy.bat
..............\..............\.......\........\gprs.dbgdt
..............\..............\.......\........\gprs.dni
..............\..............\.......\........\gprs.wsdt
..............\..............\.......\........\gprs_Debug.jlink
..............\..............\STM32_LIB
..............\..............\.........\config
..............\..............\.........\......\stm32f10x_conf.h
..............\..............\.........\inc
..............\..............\.........\...\cortexm3_macro.h
..............\..............\.........\...\stm32f10x_adc.h
..............\..............\.........\...\stm32f10x_bkp.h
..............\..............\.........\...\stm32f10x_can.h
..............\..............\.........\...\stm32f10x_crc.h
..............\..............\.........\...\stm32f10x_dac.h
..............\..............\.........\...\stm32f10x_dbgmcu.h
..............\..............\.........\...\stm32f10x_dma.h
..............\..............\.........\...\stm32f10x_exti.h
..............\..............\.........\...\stm32f10x_flash.h
..............\..............\.........\...\stm32f10x_fsmc.h
..............\..............\.........\...\stm32f10x_gpio.h
..............\..............\.........\...\stm32f10x_i2c.h
..............\..............\.........\...\stm32f10x_iwdg.h
..............\..............\.........\...\stm32f10x_lib.h
..............\..............\.........\...\stm32f10x_map.h
..............\..............\.........\...\stm32f10x_nvic.h
..............\..............\.........\...\stm32f10x_pwr.h
..............\..............\.........\...\stm32f10x_rcc.h
..............\..............\.........\...\stm32f10x_rtc.h
..............\..............\.........\...\stm32f10x_sdio.h
..............\..............\.........\...\stm32f10x_spi.h
..............\..............\.........\...\stm32f10x_systick.h
..............\..............\.........\...\stm32f10x_tim.h
..............\..............\.........\...\stm32f10x_type.h
..............\..............\.........\...\stm32f10x_usart.h
..............\..............\.........\...\stm32f10x_wwdg.h
..............\..............\.........\lib
..............\..............\.........\...\stm32_2.0.3_lib.a
..............\..............\.........\startup
..............\..............\.........\.......\cortexm3_macro.s
..............\..............\.........\.......\stm32f10x_vector.c
..............\..............\.........\version.txt
..............\..............\UCOS
..............\..............\....\inc
..............\..............\....\...\os_cfg.h
..............\..............\....\...\os_cpu.h
..............\........

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