Communication Protocols — question 5 of 10
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You're configuring a UART for 115200 baud off a 16 MHz system clock through an integer baud-rate divider. The closest achievable divider actually yields 117647 baud instead of exactly 115200. For an 8-N-1 frame (1 start bit, 8 data bits, 1 stop bit -- 10 bit times total), calculate the percent baud error between transmitter and receiver. Then tell me: given that a receiver typically needs to stay within about half a bit-time of accumulated drift by the last bit of the frame to sample it correctly, is this link going to work reliably?
This one resolves to a number. Give the value in the field below and your reasoning in the box — the number is checked exactly, by arithmetic.