Quiz No. 2 - Arduino Fundamentals

What happens when a sketch is compiled?

• A binary file indexes a collection of object files that the linker can use to fill in gaps and generate a complete program

• The sketch, any necessary libraries, and runtime code are compiled at the same time and linked into a single binary executable image.

• The sketch is loaded when the application is started and linking occurs at that time.

• The sketch, any necessary libraries and runtime code are uploaded to the board where they are then complied.

Which of the following is true about AVR microcontrollers?

• The AVR microcontroller is a modified Harvard architecture RISC controller.

• Programs and modifiable data (variables) share the same memory space.

• Both statements are true. The AVR microcontroller is a modified Harvard Architecture RISC. Programs and modifiable data share the same memory space.

• Both are true: The AVR microcontroller is a modified Harvard architecture RISC Code and modifiable data are stored in separate memory space

• Code and modifiable data are stored in separate memory space.

The AVR MCU memory core consists of Flash, SRAM, EEPROM, and fuses. Which of the folowing statements is true?

• Program code is stored in the flash memory, SRAM holds transient data such as program variables, fuses can be reset by the bootloader, and EEPROM will lost data if the AVR is powered off.

• The Flash and EEPROM both retain their content when the AVR is powered off. SRAM will lose its content if the AVR is turned off.

• Program code is stored in flash memory, EEPROM can hold data that needs to persist between power cycles, and SRAM is used to store modifiable data (variables).

• Program code and modifiable data are stored in flash memory, EEPROM and SRAM will lose their content if the AVR is powered off.

• None of the statement is true.

ATMega 2560 has twice the amount of flash memory as the ATMega 1280, otherwise they are basically the same chip.

• TRUE

• FALSE

Once the compiler converts the source code to object code, it is immediately executable using the firmware in bootloader.

• TRUE

• FALSE

The AVR MCU uses a __________ to fetch, decode and execute instructions from the flash memory.

• Subroutine

• Status Register

• Single-level Pipeline

• Static Routine

What does delay(10000) result in?

• 10000 seconds

• 10 seconds

• 100 seconds

• 10 minutes

Source code is converted to __________ using the _________ compiler, and it must be converted to __________ before it is uploaded to the bootloader using the ________ utility.

• Object Code, AVR-Dude, Intel Hex Format, AVR-GCC

• C++, AVR-Dude, Object Code, AVR-GCC

• Simple C, AVR-GCC, Intel Hex Format, AVR-Dude

• Object Code, AVR-GCC, IntelHex Format, AVR -Dude

Analog(write) is used for true analog signals on ATMega based Arduino Boards.

• True

• False

It can be used to implement an RS-232 or RS-485 interface, or without external interface logic for chip to chip communication.

• I2C

• UART

• PWM

• SPI