STM Architecture

What are the 3 types of registers?

• Control registers

• Status registers

• Data registers

What does a control register do?

What does a status register do?

What does a data register do?

Explain line 7

• Creates uint8_t pointer variable called p

• Assigns the value of p a memory address

• The memory address it assigns is the first element of the array arr

The system above shows two different sections of memory - data (SPAM) and code (flash), There is a blank block indicating a third region of memory. In the context of the STM32F051 microcontroller, what is this third block of memory. What is it used for?

• Peripheral Region

• Peripheral Registers located in this region

• Reading from / writing to peripheral registers lets us control peripherals

The STM32F051 uses a more complex bus structure than the system shown above. Explain how the CPU communicates with different memory regions in the STM32F051, making reference to the role of the bus matrix.

• STM32 consists of multiple busses

• CPU communicates to bus matrix through single bus

• Bus matrix routes communication along correct bus

• Creates macro called GPIOA

• Expands to a pointer to a GPIO struct

• Points to GPIOA peripheral's base memory address

• Allows us to access GPIOA peripherals by dereferencing struct pointer

How to run code on microcontroller

Explain two section of this basic computer structure

Draw a Harvard architecture

Draw a Von Neuman architecture

What are the instruction to execute code

What are the instruction executions for x = x +1?

Draw what is inbetween CPU and the microcontroller pins

Explain the GPIO input mode

Explain the GPIO output mode

Explain the GPIO alternative function mode

Explain the GPIO analogue mode