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The single-chip microcomputer generally plays the role of a controller in the electronic design, and can control the operation of the system according to the program in the microcontroller (written by the microcontroller developer according to the control requirements).
The single-chip microcomputer can complete general operations and operate various peripheral devices. It can also directly operate the level of the IO port of the microcontroller. Therefore, to use single-chip microcomputer, you must have a certain knowledge of digital electronics and computer programming.
MSP430 is an industrial control microcomputer, characterized by low power consumption, used more in the instrument, and the product can be used for several years with battery power.
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Generally, single-chip microcomputers have all the functions.
The MSP430G2553 is a 16-bit MCU with a supply voltage as low as the one shown in the figure below, and a variety of low-power modes for developers to use flexibly.
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The single-chip microcomputer is an integrated chip and also becomes the MCU is the microprocessor, which is roughly divided into two aspects, one is the aspect of industrial control, and the other is the CPU of the computer application, which integrates the analog circuit and digital circuit of the Sun search key to deal with the execution of program instructions, communication and interrupts, and the simple 8-bit single-chip microcomputer is used to do intelligent instrumentation, and the more advanced 16-bit one has to do the embedded system, like the CPU in the mobile phone, it happens to be the A4 chip of the iPhone 4, which is actually a single-chip microcomputer. This MSP430 you mentioned, it's a mixed-signal processor with low power consumption. The more advanced models apply flash memory and JTAG technology.
It can be programmed, the development is relatively simple, easy to use, and it is relatively cheap. If you don't know the single-chip microcomputer, it is recommended that you learn the 89C51 series single-chip microcomputer, which is the simplest and the most typical single-chip microcomputer leakage. Understand the principle, what model of single-chip microcomputer is the command symbol is different, the programming ideas are similar, I hope it can help you.
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This is a question that is asked so professionally ...
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a.Powerful processing power:
MSP430 series microcontroller is a 16-bit microcontroller, using reduced instruction set (RISC) structure, with rich addressing methods (7 source operand addressing, 4 destination operand addressing), concise 27 kernel instructions and a large number of analog instructions; A large number of registers as well as on-chip data memory can participate in a variety of calculations; There are also efficient lookup and processing instructions; It has a high processing speed of 125 ns with an instruction cycle time of 125 ns driven by an 8MHz crystal. These features ensure that efficient source programs can be programmed.
b.In terms of computing speed, the MSP430 series microcontroller can achieve an instruction cycle of 125ns driven by an 8MHz crystal. The combination of a 16-bit data width, a 125ns instruction cycle, and a multi-functional hardware multiplier (which enables multiplication and addition) can implement certain algorithms for digital signal processing (such as FFT, etc.).
c.MSP430 series microcontrollers have many interrupt sources, and can be nested arbitrarily, which is flexible and convenient to use. When the system is in power-saving standby state, it only takes 6us to wake it up with an interrupt request.
d.Ultra-low power consumption The MSP430 microcontroller has ultra-low power consumption because it has its unique features in reducing the power supply voltage of the chip and flexible and controllable operating clock.
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1. MSP430: It is a mixed-signal microcontroller.
2. MSP430 series: characterized by ultra-low power microcontrollers featuring multiple devices and different sets of peripheral devices for various applications.
3. The architecture, combined with 5 low-power modes, is optimized to achieve portable measurement applications with extended battery life. 4. Powerful 16-bit RISC CPU, 16-bit register and attribute constant generator to maximize encoding efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power mode to active mode in less than 6 microseconds.
There are a lot of registers, if you want to learn, you can't ask others like this, because others are not good for you, if you want to study, take a look at this book first, the general book, will introduce its register, has been used. For example, timera has a lot of song registers, tactl, tacctl, tamctl, etc., which are used to configure clock sources, frequency divisions and other configuration information. There are also AD12 registers, door openers, I/O registers, and so on. >>>More
The serial port of 51 machine is below the low level, the high level is below 5V, the serial port of the PC is low level -12V, the high level is +12V, and the serial port communication between the 51 machine and the PC machine should add the level conversion IC >>>More
A byte is 8 binary bits.
89C51 is an 8-bit single-chip microcomputer, so most of the memory units are single-byte (that is, 8 bits), but there are also 16-bit, such as program counter PC and data pointer dptr (in fact, DPTR is composed of two single bytes of DPL and DPH, which can be operated separately, such as MOV DPL, 80h, or directly operated with 16 bits, such as inc dptr and MOV DPTR, 3000h, while PC is 16-bit, and cannot be operated with instructions such as MOV, because it can't be addressed). >>>More
This depends on your functional needs, the single-chip microcomputer is suitable for control, the main control of the acquisition system, and Android tends to deal with complex tasks, interfaces, etc. Of course, there are also cost considerations.
I feel like what you said is weird.,What the general I-O port of the single-chip microcomputer is talking about is the general I.O.,Can output high and low levels,Peripheral functions? General external devices, such as cameras or printers, they specifically implement certain functions (taking pictures or printing documents), single-chip microcomputer to control these external devices, generally speaking, the IO port of the single-chip microcomputer is connected to the pins of these peripherals, and the control of external devices is realized through the IO pins, so that they can complete the functions we require.