EFM32LG232F128-QFP64T

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The EFM32LG232F128-QFP64T is a highly integrated Arm Cortex-M3 based microcontroller with many features including an analog-to-digital converter, direct memory access (DMA) controller, and an LCD controller. It is ideal for embedded applications such as smart homes, Internet of Things (IoT) devices, wearables, and point-of-sale (POS) systems. The EFM32LG232F128-QFP64T is part of the Arduino IDE framework and is compatible with many development boards.

Application Field

The EFM32LG232F128-QFP64T is a robust and power efficient 32-bit microcontroller that combines an ARM Cortex-M3 core, up to 128Kbytes of Flash, and up to 32Kbytes of SRAM. This is the perfect solution for embedded applications requiring significant processing power and peripheral capabilities. EnduranceTM is a built-in feature that ensures reliable operation even after the power is cycled off and on. The EFM32LG232F128-QFP64T has the following applications:

• Home Automation: The EFM32LG232F128-QFP64T is a perfect choice for applications requiring reliable and efficient control of home systems such as lights, cameras, locks, and security systems. With built-in support for ZigBee, Z-Wave, Bluetooth, USB, and other communication protocols, developing a home automation system with the EFM32LG232F128-QFP64T is fast and easy.
• Internet of Things (IoT): By adding the EFM32LG232F128-QFP64T to your IoT project, you can build a powerful system with low power consumption. The combination of Endurance and low-power operating modes makes it ideal for connected, battery-powered devices. The EFM32LG232F128-QFP64T also supports common security protocols, allowing you to secure communications between devices even in hostile environments.
• Wearables: The EFM32LG232F128-QFP64T is small and light enough, yet powerful enough to be used in wearables such as fitness trackers and smartwatches. It can handle computation-intensive tasks such as image recognition, fitness tracking, and speech recognition, while using very little power. This allows you to develop wearable devices that are always on and always connected.
• Point-of-Sale (POS) Systems: The EFM32LG232F128-QFP64T is an ideal choice for many POS applications. It is capable of running POS software, providing secure processing of credit card and other payments, and communicating with peripherals such as printers, scanners, and cash drawers. It also supports multiple communication protocols, including NFC, Bluetooth, and Wi-Fi, making it easy to integrate with existing POS systems.

Working Principle

The EFM32LG232F128-QFP64T is a 32-bit microcontroller based on the ARM Cortex-M3 core. It contains an integrated set of hardware and software components that allow it to be used in many embedded applications. The ARM Cortex-M3 core is a low-power, high-performance 32-bit processor that is capable of executing instructions at up to 72 MHz. The internal memory consists of 128 Kbytes of Flash and 32 Kbytes of SRAM. It also includes a DMA controller, an analog-to-digital converter, and a LCD controller. In addition, the EFM32LG232F128-QFP64T includes a range of communication peripherals such as USB, UART, SPI, and I2C.

The EFM32LG232F128-QFP64T is programmed in C language and operates according to an interrupt-driven model. An interrupt is an event that temporarily stops the microcontroller’s execution and jumps to a specific address in the program memory where the interrupt-handling routines are stored. The EFM32LG232F128-QFP64T supports two interrupt sources: the processor core and external devices. The processor core can generate a range of interrupts, such as a timer interrupt or a software interrupt. External devices can generate an interrupt when a certain condition is met, such as a button press, or when data has been received by the UART. Interrupts can also be triggered by the on-chip peripherals, such as the analog-to-digital converter.

The EFM32LG232F128-QFP64T also supports direct memory access (DMA). The DMA controller is hardware that moves data between memory and peripherals, such as the LCD controller or the audio codec, without having to involve the processor core. This allows the processor core to be free to execute other tasks while the data is being transferred. In addition, the EFM32LG232F128-QFP64T includes an Endurance feature that ensures the data stored in Flash memory is not corrupted when the power is cycled off and on.

The EFM32LG232F128-QFP64T is the perfect choice for any embedded application requiring processing power, peripheral capability, and a low power draw. With its combination of features, the EFM32LG232F128-QFP64T can be used in a variety of embedded applications such as wearables, home automation, IoT, and POS systems.

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