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<br> You can see that RS232 have some lag between transmisions. This caused mainly by kernel process management. UART peripheral is controlled by Linux and It isn't a real time operation system. This program have three I/O functions that connect to UART driver via ioctl (read(), write() and select()), but only select() and write() and put program in sleep mode, the proceess awake when I/O task is completed. Select functions is used to prevent that readswas blocked when there aren't data avaliable.
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<br> '''Under Construction'''
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