ARM Microcontroller Course

Transcription

1 February 15, 2017

2 Please dowload the software available on

3 Table of ontents 1 Introduction 2 Data types Operators Events 3

4 The ourse Five Wednesday evenings of pure fun

5 Introduction The ourse Five Wednesday evenings of pure fun Nucleo-F466RE board

6 Introduction The ourse Five Wednesday evenings of pure fun Nucleo-F466RE board Programming in

7 Introduction The ourse Five Wednesday evenings of pure fun Nucleo-F466RE board Programming in Manual and Datasheet

8 Introduction The ourse Five Wednesday evenings of pure fun Nucleo-F466RE board Programming in Manual and Datasheet Build a voice recorder

9 We would like to thank: STMicroelectronics Eurocircuits Molex irrus Logic

10 What is a? Processor

11 What is a? Processor Memory

12 What is a? Processor Memory Program Memory

13 What is a? Processor Memory Program Memory RAM

14 What is a? Processor Memory Program Memory RAM Peripherals

15 What is a? Processor Memory Program Memory RAM Peripherals lock Generator

16 What is a? Processor Memory Program Memory RAM Peripherals lock Generator Digital General Purpose I/O

17 What is a? Processor Memory Program Memory RAM Peripherals lock Generator Digital General Purpose I/O Analog I/O (eg. AD, omparator)

18 What is a? Processor Memory Program Memory RAM Peripherals lock Generator Digital General Purpose I/O Analog I/O (eg. AD, omparator) Timers

19 What is a? Processor Memory Program Memory RAM Peripherals lock Generator Digital General Purpose I/O Analog I/O (eg. AD, omparator) Timers Hardware Serial ommunication (eg. UART, SPI, I 2 )

20 Data types Operators Events Table of ontents 1 Introduction 2 Data types Operators Events 3

21 Data types Operators Events Data types Integer types (uint8_t,uint16_t,int32_t,..)

22 Data types Operators Events Data types Integer types (uint8_t,uint16_t,int32_t,..) Float types (float,double,..)

23 Data types Operators Events Data types Integer types (uint8_t,uint16_t,int32_t,..) Float types (float,double,..) Enumerated types (enum)

24 Data types Operators Events Data types Integer types (uint8_t,uint16_t,int32_t,..) Float types (float,double,..) Enumerated types (enum) Void (void)

25 Data types Operators Events Data types Integer types (uint8_t,uint16_t,int32_t,..) Float types (float,double,..) Enumerated types (enum) Void (void) Derived types (pointers, arrays, structs, unions, function types,..)

26 Data types Operators Events Operators Arithmetic + Adds two operands Subtracts second operand from first Multiplies both operands / Divides numerator by de-numerator ++ Increases integer by 1 Decreases integer by 1

27 Data types Operators Events Operators Logical && Logical AND. Returns True when both operands are non-zero Logical OR. Returns True when any of the operands is non-zero! Logical NOT. Reverses the logical state of the operand.

28 Data types Operators Events Operators Bitwise & Bitwise AND. opies bit when it exists in both operands. Bitwise OR. opies bit when it exists in either operand. ˆ Bitwise XOR. opies the bit if set in one operand, but not both. Flips the bits. << Binary Left Shift. Left operands value is moved left by right number of bits. >> Binary Right Shift. Left operands value is moved right by right number of bits.

29 Data types Operators Events Operators Example uint8_t A = 0 xee ; // equal to 0 b uint8_t B = 5; // equal to 0 b uint8_t ; // declare = A + B; // = 0 b = A && B; // = True = 0 b = A << 2; // = 0 b = A & B; // = 0 b

30 Data types Operators Events Polling and Interrupts Two approaches to checking a state Polling heck a value If changed, perform some action

31 Data types Operators Events Polling and Interrupts Two approaches to checking a state Polling heck a value If changed, perform some action Interrupt When a change of a value happens, go immediately to ISR Perform Interrupt Service Routine (ISR) Resume code

32 Table of ontents 1 Introduction 2 Data types Operators Events 3

33 Memory Register

34 Memory Register Memory Space

35 Memory Register Memory Space Memory Mapped Peripherals

36 Memory Register Memory Space Memory Mapped Peripherals Register Name Description 0x Flash Memory Start Address 0x SRAM Start Address 0x GPIOB MODER GPIO Port B Mode register 0x GPIOA PUPDR GPIO Port A Pullup register 0x SPI1 DR SPI Data register

37 Programming in Eclipse The procedure: 1 Read the manual

38 Programming in Eclipse The procedure: 1 Read the manual 2 Start a project in Eclipse

39 Programming in Eclipse The procedure: 1 Read the manual 2 Start a project in Eclipse 3 Write your code

40 Programming in Eclipse The procedure: 1 Read the manual 2 Start a project in Eclipse 3 Write your code 4 ompile the code

41 Programming in Eclipse The procedure: 1 Read the manual 2 Start a project in Eclipse 3 Write your code 4 ompile the code 5 Debug your code

42 Planning Today: Read the manual 1 1 Yes I know, that was on the previous slide as well. Do it! :-)

43 Planning Today: Read the manual Get used to Eclipse

44 Planning Today: Read the manual Get used to Eclipse Turn an LED on/off

45 Planning Today: Read the manual Get used to Eclipse Turn an LED on/off Toggle the LED with a button

46 Planning Today: Read the manual Get used to Eclipse Turn an LED on/off Toggle the LED with a button

47 Planning Today: Read the manual Get used to Eclipse Turn an LED on/off Toggle the LED with a button What s yet to come: AD - hange the color of the LED with a potmeter SPI - Talk to the codec I2S - Record audio SD ard - Save the audio and play back

48 Material You can find all material on Make sure you download: The Manual The Datasheets of the F446RE

49 Troubleshooting Good luck! If there are any problems you encounter, please ask or send an to