STM32F405VGT6TR vs LM3S3748-IQC50-A0T
| Part Number |
|
|
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers |
| Manufacturer | STMicroelectronics | Texas Instruments |
| Description | IC MCU 32BIT 1MB FLASH 100LQFP | IC MCU 32BIT 128KB FLASH 100LQFP |
| Package | Tray | Tray |
| Series | STM32F4 | Stellaris® ARM® Cortex®-M3S 3000 |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 100-LQFP | 100-LQFP |
| Supplier Device Package | 100-LQFP (14x14) | 100-LQFP (14x14) |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V | 2.25V ~ 2.75V |
| Speed | 168MHz | 50MHz |
| Number of I/O | 82 | 61 |
| EEPROM Size | - | - |
| Core Processor | ARM® Cortex®-M4 | ARM® Cortex®-M3 |
| RAM Size | 192K x 8 | 64K x 8 |
| Core Size | 32-Bit | 32-Bit |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG | I²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Program Memory Size | 1MB (1M x 8) | 128KB (128K x 8) |
| Program Memory Type | FLASH | FLASH |
| Data Converters | A/D 16x12b; D/A 2x12b | A/D 8x10b |
| Oscillator Type | Internal | Internal |
-
1. Is Arduino an embedded microcontroller?
Arduino is an embedded microcontroller platform based on open source hardware and software. It contains a microcontroller (MCU) and related modules that can interact with the external environment through hardware and software. The core board of Arduino consists of a microcontroller and related modules, with basic input and output connections and multiple communication interfaces, including serial ports, SPI and TWI, etc., which can communicate and transfer data with other devices.
Features of Arduino include:
Development environment: Arduino comes with a software development environment that can be programmed in C and C++ languages.
Libraries and functions: It has a rich hardware library and functions for rapid development.
Low cost: It is suitable for hardware development such as sensors, simple robots, thermostats and motion detectors, with low cost and simple operation.
Wide application: It is commonly used in projects such as IoT products, automation control and robots.
Compared with other microcontroller platforms, the advantage of Arduino is its simple and easy-to-use hardware and software tools, which enable electronic enthusiasts and general users to quickly realize various application projects. -
2. What is an embedded system controller?
An embedded system controller is a microcomputer system designed specifically for a specific purpose. It integrates key components such as processors, memory, input and output interfaces, etc. to achieve real-time control and data processing of embedded systems. It is widely used in electronic products, automobiles, industrial automation and other fields, and is an important foundation for modern intelligent production.
Embedded system controllers have the following characteristics:
High performance: Embedded system controllers usually have high-performance processing capabilities and can handle complex computing tasks.
Low power consumption: Compared with personal computers or servers, embedded system controllers usually have lower power consumption and are suitable for long-term operation scenarios.
High reliability: Due to the particularity of the application scenario, the embedded system controller needs to have high reliability and be able to work stably in harsh environments.
Rich peripheral interfaces: In order to adapt to different application requirements, embedded system controllers usually provide rich peripheral interfaces to facilitate communication and data exchange with other devices.
The application fields of embedded system controllers are very wide, including:
Electronic products: such as smart watches, smart home devices, etc.
Automotive electronics: such as in-car entertainment systems, intelligent driving assistance systems, etc.
Industrial automation: such as industrial control systems, automated production lines, etc.
Medical equipment: such as medical imaging equipment, monitoring instruments, etc.
Communication equipment: such as base station equipment, wireless communication terminals, etc.
What is the difference between embedded microcontrollers and external microcontrollers?
The main difference between embedded microcontrollers and external microcontrollers lies in their application scenarios and integration. Embedded microcontrollers are computer systems designed specifically for embedding into object systems. They usually integrate necessary components such as microprocessor cores, memory, and peripheral interfaces, and are mainly used to control and execute specific tasks. External microcontrollers usually refer to independent microcontroller units. Although they also have similar components, they are mainly used for more complex computing and processing tasks.
Embedded microcontrollers are often used in embedded systems, which are usually composed of a series of electronic components and have specific functions. As the core component of the system, embedded microcontrollers are responsible for controlling, monitoring or assisting the operation of equipment, machines and workshops. They are widely used in various fields such as home appliances, automobiles, industrial control, medical equipment, etc., with the characteristics of low power consumption and high performance.
External microcontrollers are usually used in scenarios that require higher computing power and more complex processing. They can exist independently of embedded systems and perform a variety of tasks such as data processing and communication. External microcontrollers are widely used in personal computers, servers, industrial automation and other fields, and can handle more complex data and tasks. -
3. Is Raspberry Pi an embedded system?
Raspberry Pi is an embedded system. Raspberry Pi is a single-board computer based on ARM architecture with rich input and output interfaces and powerful computing power. It can run the Linux operating system and support multiple programming languages such as Python and C++. Due to its compact size and powerful functions, Raspberry Pi is widely used in various embedded systems and robotics projects.
Features of Raspberry Pi include:
Based on ARM architecture: Raspberry Pi adopts ARM architecture, which is an architecture widely used in embedded systems with low power consumption and high efficiency.
Rich interfaces: It has USB interface, Fast Ethernet interface, SD slot, HDMI output interface, etc., and can connect a variety of peripherals.
Open source software support: It supports multiple programming languages and a large number of open source software libraries, which is convenient for development and expansion.
Wide application: It is often used to build routers, smart cars, smart homes, servers and other applications.
Disadvantages of Raspberry Pi include:
Single 5V power supply: The power supply design is simple, which may cause unstable operation of peripherals.
Bandwidth limitation: The USB interface has limited bandwidth and may encounter performance bottlenecks when transmitting large amounts of data. -
4. What language is used for embedded microcontroller programming?
The main languages used for embedded microcontroller programming include C, C++, assembly language, Python and Rust. These languages have their own characteristics and are suitable for different development needs and scenarios.
C is one of the most commonly used languages in embedded development. It has the advantages of high efficiency, flexibility, and strong portability. It can directly operate hardware and is suitable for low-level driver development, kernel programming, etc. C++ is used in complex embedded systems and adds object-oriented features, which is suitable for the development of large applications. Although assembly language is difficult to learn and write, it is indispensable in scenarios that require high optimization and direct control of hardware. Python is easy to learn and use, and is often used in data processing, prototype development, and rapid testing. Rust is gradually gaining attention in the embedded field due to its memory safety and high performance, especially in applications with high security requirements.
