Learning about Microcontrollers in Automotive Systems (E0009E)

This repository is made up of different branches that reflect the use of different peripherals on a STM32L476RG microcontroller

You can find additional material and information at:

• STM32 MCU Wiki
• Online Training
• STM32 Cube IDE Introduction Wiki

Branch order

To make the most of this repository, the student might want to study each branch (mostly main.c) in the following order:

• GPIO
  • blinky, which flash an LED
  • dualBlinky. which flashes two LEDs out of synch
  • blueBotton, which uses the blue button to turn on the onboard green LED
  • blockingLED, where a flashing LED blocks the turning on or off of a second LED
  • nonblockingLED, or the use of External Interrupts for real time response
• UART
  • helloWorld, which displays Automotive Systems 2 on the hosting computer with Putty
  • blockingEcho, which waits and returns what is sent (or typed)
  • nonBlockingEcho, which uses an Internal Interrupt to inform that a new character has been received on UART
  • buttonMemu, which simulates the gear selection of an automatic car using a button.
  • keyMenu lets you select the desired gear by typing it on the keyboard and pressing "Enter"
• ADC
  • adc transform the analog signal from A0 to a 12 bit number
• I2C
  • tmp102 reads the temperature of a TMP102 sensor over the I2C bus
  • imuI2cXaccel obtains the accelerometer value from an IMU in the X direction
  • i2Cslave
  • i2cLcd displays "Automotive Systems 2" on the qwiic 128x32 OLED display
• SPI
  • imuSpiXaccel obtains the accelerometer value from an IMU in the X direction
  • SPIslave
• Timer/Counters
  • breathingLED the green LED gets brighter and dimmer cyclicly
  • pwmServo controls the position of an RC steering servo
  • inputCapture measures the time between events (rising edges)
  • rpm555
• RTC
  • rtc demonstrate the use of the chip's real time clock
• CAN
  • CANloopback teaches how to transmit frames and filter incoming messages
  • CANvel display in a terminal window the vehicle speed (over the diagnostic port)
• Error handling
• Real Time Operating System (RTOS)
  • rtos has two threads that toggle the board's LED at different rates