UART

  同时使用STM32三个串口的接收与发送，串口1使用printf(),串口2使用u2_printf(),串口3使用u3_printf().接受采用定时器中断超时，5ms未接收到数据认为本次接收结束，置位相应的标志位，主程序检测并处理接收数据。(STM32 simultaneously receive and send three serial, serial port 1 to use printf (), 2 serial ports use u2_printf (), 3 serial ports use u3_printf (). Accepting timer interruption timeout, 5ms does not receive data that the receiving end of this, set the appropriate flag, the main program to detect and process the received data.)

UART
....\CORE
....\....\core_cm3.c,17273,2010-06-07
....\....\core_cm3.h,85714,2011-02-09
....\....\startup_stm32f10x_hd.s,15503,2011-03-10
....\....\startup_stm32f10x_md.s,12765,2011-03-10
....\HARDWARE
....\........\timers
....\........\......\timer.c,2461,2015-05-31
....\........\......\timer.h,166,2015-05-31
....\........\USART2
....\........\......\usart2.c,5400,2015-08-30
....\........\......\usart2.h,1935,2015-05-09
....\........\USART3
....\........\......\usart.h,1041,2015-06-24
....\........\......\usart3.c,3690,2015-08-30
....\........\......\usart3.h,802,2015-08-30
....\keilkilll.bat,399,2011-04-23
....\OBJ
....\...\core_cm3.crf,3579,2015-08-30
....\...\core_cm3.d,102,2015-08-30
....\...\core_cm3.o,10540,2015-08-30
....\...\delay.crf,349455,2015-08-30
....\...\delay.d,1667,2015-08-30
....\...\delay.o,381440,2015-08-30
....\...\flash.d,0,2015-08-30
....\...\flash.__i,577,2015-08-30
....\...\main.crf,358141,2015-08-30
....\...\main.d,2026,2015-08-30
....\...\main.o,392200,2015-08-30
....\...\misc.crf,348528,2015-08-30
....\...\misc.d,1611,2015-08-30
....\...\misc.o,379080,2015-08-30
....\...\startup_stm32f10x_hd.d,63,2015-08-30
....\...\startup_stm32f10x_hd.o,6724,2015-08-30
....\...\stm32f10x_adc.crf,355697,2015-08-30
....\...\stm32f10x_adc.d,1908,2015-08-30
....\...\stm32f10x_adc.o,393056,2015-08-30
....\...\stm32f10x_bkp.crf,349468,2015-08-30
....\...\stm32f10x_bkp.d,1908,2015-08-30
....\...\stm32f10x_bkp.o,381492,2015-08-30
....\...\stm32f10x_can.crf,357310,2015-08-30
....\...\stm32f10x_can.d,1908,2015-08-30
....\...\stm32f10x_can.o,390224,2015-08-30
....\...\stm32f10x_cec.crf,350021,2015-08-30
....\...\stm32f10x_cec.d,1908,2015-08-30
....\...\stm32f10x_cec.o,381924,2015-08-30
....\...\stm32f10x_crc.crf,348081,2015-08-30
....\...\stm32f10x_crc.d,1908,2015-08-30
....\...\stm32f10x_crc.o,378972,2015-08-30
....\...\stm32f10x_dac.crf,350154,2015-08-30
....\...\stm32f10x_dac.d,1908,2015-08-30
....\...\stm32f10x_dac.o,382068,2015-08-30
....\...\stm32f10x_dbgmcu.crf,347871,2015-08-30
....\...\stm32f10x_dbgmcu.d,2007,2015-08-30
....\...\stm32f10x_dbgmcu.o,378216,2015-08-30
....\...\stm32f10x_dma.crf,351636,2015-08-30
....\...\stm32f10x_dma.d,1908,2015-08-30
....\...\stm32f10x_dma.o,382684,2015-08-30
....\...\stm32f10x_exti.crf,349087,2015-08-30
....\...\stm32f10x_exti.d,1941,2015-08-30
....\...\stm32f10x_exti.o,379924,2015-08-30
....\...\stm32f10x_flash.crf,355538,2015-08-30
....\...\stm32f10x_flash.d,1974,2015-08-30
....\...\stm32f10x_flash.o,389504,2015-08-30
....\...\stm32f10x_fsmc.crf,354043,2015-08-30
....\...\stm32f10x_fsmc.d,1941,2015-08-30
....\...\stm32f10x_fsmc.o,385568,2015-08-30
....\...\stm32f10x_gpio.crf,352026,2015-08-30
....\...\stm32f10x_gpio.d,1941,2015-08-30
....\...\stm32f10x_gpio.o,385420,2015-08-30
....\...\stm32f10x_i2c.crf,354457,2015-08-30
....\...\stm32f10x_i2c.d,1908,2015-08-30
....\...\stm32f10x_i2c.o,390660,2015-08-30
....\...\stm32f10x_it.crf,359376,2015-08-30
....\...\stm32f10x_it.d,2370,2015-08-30
....\...\stm32f10x_it.o,396180,2015-08-30
....\...\stm32f10x_iwdg.crf,348182,2015-08-30
....\...\stm32f10x_iwdg.d,1941,2015-08-30
....\...\stm32f10x_iwdg.o,378884,2015-08-30
....\...\stm32f10x_pwr.crf,349375,2015-08-30
....\...\stm32f10x_pwr.d,1908,2015-08-30
....\...\stm32f10x_pwr.o,380464,2015-08-30
....\...\stm32f10x_rcc.crf,355601,2015-08-30
....\...\stm32f10x_rcc.d,1908,2015-08-30
....\...\stm32f10x_rcc.o,389844,2015-08-30
....\...\stm32f10x_rtc.crf,349375,2015-08-30
....\...\stm32f10x_rtc.d,1908,2015-08-30
....\...\stm32f10x_rtc.o,381364,2015-08-30
....\...\stm32f10x_sdio.crf,352637,2015-08-30
....\...\stm32f10x_sdio.d,1941,2015-08-30
....\...\stm32f10x_sdio.o,387020,2015-08-30
....\...\stm32f10x_spi.crf,352501,2015-08-30
....\...\stm32f10x_spi.d,1908,2015-08-30
....\...\stm32f10x_spi.o,386752,2015-08-30
....\...\stm32f10x_tim.crf,370614,2015-08-30
....\...\stm32f10x_tim.d,1908,2015-08-30
....\...\stm32f10x_tim.o,413560,2015-08-30
....\...\stm32f10x_usart.crf,354139,2015-08-30
....\...\stm32f10x_usart.d,1974,2015-08-30