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The STM32F4DISCOVERY Discovery kit leverages the capabilities of the STM32F407 high-performance microcontrollers, to allow users to develop audio applications easily. It includes an ST-LINK/V2-A embedded debug tool, one ST-MEMS digital accelerometer, one digital microphone, one audio DAC with integrated class D speaker driver, LEDs, push-buttons, and a USB OTG Micro-AB connector.

FEATURES

• STM32F407VGT6 microcontroller featuring 32-bit Arm^® Cortex^®-M4 with FPU core, 1-Mbyte Flash memory and 192-Kbyte RAM in an LQFP100 package
• USB OTG FS
• ST MEMS 3-axis accelerometer
• ST-MEMS audio sensor omni-directional digital microphone
• Audio DAC with integrated class D speaker driver
• User and reset push-buttons
• Eight LEDs:
  • LD1 (red/green) for USB communication
  • LD2 (red) for 3.3 V power on
  • Four user LEDs, LD3 (orange), LD4 (green), LD5 (red) and LD6 (blue)
  • Two USB OTG LEDs, LD7 (green) V_BUS and LD8 (red) over-current
• Board connectors:
  • USB with Micro-AB
  • Stereo headphone output jack
  • 2.54 mm pitch extension header for all LQFP100 I/Os for quick connection to prototyping board and easy probing
• Flexible power-supply options: ST-LINK, USB V_BUS, or external sources
• External application power supply: 3 V and 5 V
• Comprehensive free software including a variety of examples, part of STM32CubeF4 MCU Package, or STSW-STM32068 for using legacy standard libraries
• On-board ST-LINK/V2-A debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port
• Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded Workbench^®, MDK-ARM, and STM32CubeIDE

APPLICATIONS

• Analog and digital sensors in mixed-signal edge nodes and single-chip applications
• Lighting
• Motor control
• Medical
• Home automation
• Automotive
• Internet of Things (IoT)

Microchip Technology PIC18-Q71 28/40/44/48-Pin Microcontrollers are designed for high bandwidth mixed-signal and sensor applications. The PIC18-Q71 MCUs are an ideal solution for lighting, motor control, and medical market segments.
The analog-focused Microchip PIC18-Q71 MCUs incorporate a 12-bit differential ADC with computation and context switching, two operational amplifiers, a 10-bit Digital-to-Analog Converter (DAC), and two 8-bit DAC modules with buffered outputs and internal connections to other peripherals, and two advanced high-speed analog comparators. Additionally, the devices feature the Analog Peripheral Manager to manage analog peripherals for optimizing power consumption.

The PIC18-Q71 microcontrollers offer the 8-bit virtual port module to interconnect digital peripherals without utilizing external pins.

FEATURES

• C Compiler-optimized RISC architecture
• 128-level deep hardware stack
• Four Direct Memory Access (DMA) controllers:
  • Data transfers to SFR/GPR spaces from either the Program Flash Memory, Data EEPROM, or SFR/GPR spaces
  • User-programmable source and destination sizes
  • Hardware and software-triggered data transfers
• Vectored interrupt capability:
  • Selectable high/low priority
  • Fixed interrupt latency of three instruction cycles
  • Programmable vector table base address
  • Backward compatible with previous interrupt capabilities

• Operating speed:
  • DC to 64MHz clock input
  • 62.5ns minimum instruction cycle
• Low-current Power-on Reset (POR)
• Configurable Power-up Timer (PWRT)
• Brown-out Reset (BOR)
• Low-Power BOR (LPBOR) option
• Windowed Watchdog Timer (WWDT):
  • Watchdog Reset on too long or too short intervals between watchdog clear events
  • Variable prescaler selection
  • Variable window size selection

APPLICATIONS

• Analog and digital sensors in mixed-signal edge nodes and single-chip applications
• Lighting
• Motor control

• Medical
• Home automation
• Automotive
• Internet of Things (IoT)

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