Question: (a) The n-bit R/2R digital-to-analog converter (DAC) has a reference of 16V and the analog output for the input code 1 is 15.625mV. Find the

(a) The n-bit R/2R digital-to-analog converter (DAC) has a reference of

(a) The n-bit R/2R digital-to-analog converter (DAC) has a reference of 16V and the analog output for the input code 1 is 15.625mV. Find the digital input value for the output 9.140625V [7 Marks] (b) Write an assembly language program to send a string "Critical Alarm" to a PC through serial communication of the 8051 microcontrollers. Use 4800bps,8 data bits, one start bit, one stop bit and no parity bits for the communication. (Assume that the PC will receive data without any error.) [8 Marks]

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