Introduction to Embedded Systems

Design a device that will work as scanner/printer machine. If the switch is on, the device will read a sentence of 10 characters from a scanner which is connected serially. The sentence is saved in external RAM memory. When the switch is off, the device will print 20 characters from internal ROM serially. The user of the device should turn the switch on or off. Initially the switch is ON. Write all your assumptions clearly. Use the 8051 for your design and use 1,200 baud rate. 3. Write a code that read characters from a device called line generator connected to the serial port of 8051 and convert the uppercase characters to lowercase. Use baud rate 19,200. 4. Design a device using 8051 to let the user choose between 9,600 or 19,200 baud rates. The user will print serially the information received to it through a device called MINE connected to port 1. The printer is connected to the serial port of the 8051. Force the user first to choose the baud rate, then allow the device to read MINE and print it serially. State all your assumptions.