Embedded-Drivrers

Embedded Systems Drivers for ATmega32 & ATmega32L

Atmega32 is an 8-bit AVR microcontroller with 32K bytes In-System Programmable Flash

Contents

1. Drivers

   • Analog to Digital Converter (ADC)
   • General Purpose Input/Output (GPIO) (DIO)
   • Pluse Width Modulation (PWM)
   • Input Capture Unit (ICU)
   • Liquid Crytsal Display (LCD)
   • Temperature Sensor LM35
   • Ultrasonic HCSR04
   • DC Motor

2. Atmega32 Features

Atmega32 Features:

• High-performance, Low-power AVR® 8-bit Microcontroller

• Advanced RISC Architecture

  • 131 Powerful Instructions – Most Single-clock Cycle Execution
  • 32 x 8 General Purpose Working Registers
  • Fully Static Operation
  • Up to 16 MIPS Throughput at 16 MHz
  • On-chip 2-cycle Multiplier

• Nonvolatile Program and Data Memories

  • 32K Bytes of In-System Self-Programmable Flash

    Endurance: 10,000 Write/Erase Cycles

  • Optional Boot Code Section with Independent Lock Bits

    In-System Programming by On-chip Boot Program True Read-While-Write Operation

  • 1024 Bytes EEPROM

    Endurance: 100,000 Write/Erase Cycles

  • 2K Byte Internal SRAM

  • Programming Lock for Software Security

• JTAG (IEEE std. 1149.1 Compliant) Interface

  • Boundary-scan Capabilities According to the JTAG Standard
  • Extensive On-chip Debug Support
  • Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface

• Peripheral Features

  • Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
  • One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
  • Real Time Counter with Separate Oscillator
  • Four PWM Channels
  • 8-channel, 10-bit ADC
  • 8 Single-ended Channels
  • 7 Differential Channels in TQFP Package Only
  • 2 Differential Channels with Programmable Gain at 1x, 10x, or 200x
  • Byte-oriented Two-wire Serial Interface
  • Programmable Serial USART
  • Master/Slave SPI Serial Interface
  • Programmable Watchdog Timer with Separate On-chip Oscillator
  • On-chip Analog Comparator

• Special Microcontroller Features

  • Power-on Reset and Programmable Brown-out Detection
  • Internal Calibrated RC Oscillator
  • External and Internal Interrupt Sources
  • Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby

• I/O and Packages

  • 32 Programmable I/O Lines
  • 40-pin PDIP, 44-lead TQFP, and 44-pad MLF

• Operating Voltages

  • 4.5 - 5.5V for ATmega32
  • 2.7 - 5.5V for ATmega32L

• Speed Grades

  • 0 - 8 MHz for ATmega32L
  • 0 - 16 MHz for ATmega32

• Power Consumption at 1 MHz, 3V, 25°C for ATmega32L

  • Active: 1.1 mA
  • Idle Mode: 0.35 mA
  • Power-down Mode: < 1 μA