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Peripherals
UART
UART Interview Questions
11 questions in
Peripherals
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0
What is UART and how does it differ from SPI and I2C?
UART
Basics and Frame Format
foundational
0
Describe the UART frame structure and calculate its efficiency.
UART
Basics and Frame Format
foundational
0
What happens if the baud rates of two UART devices do not match?
UART
Basics and Frame Format
foundational
#4
0
What error conditions can UART hardware detect, and how should firmware handle them?
UART
Error Detection and Handling
foundational
#5
0
Explain hardware flow control (RTS/CTS) and when it is necessary.
UART
Flow Control
foundational
#6
0
How does the UART baud rate generator work, and how do you calculate the divisor from the peripheral clock?
UART
Baud Rate Generation
foundational
#7
0
Why is DMA preferred over interrupt-driven UART reception, and how do you set it up?
UART
DMA and Ring Buffers
foundational
#8
0
What is the ring buffer pattern for UART, and why is it essential?
UART
DMA and Ring Buffers
foundational
#9
0
What is UART idle line detection and why is it important for packet-based protocols?
UART
Idle Line Detection
foundational
#10
0
What is the difference between UART, RS-232, and RS-485? When would you choose RS-485?
UART
UART vs RS-485
foundational
#11
0
What is the difference between UART and USART, and when would you use synchronous mode?
UART
UART vs USART
foundational
