有关单片机中英文翻译论文

有关单片机中英文翻译论文内容摘要：

spirator, the various analyzers, monitors, ultrasound diagnostic equipment and hospital beds, etc. call system. 6. In a variety of major appliances in the modular applications Designed to achieve some special single specific function to be modular in a variety of circuit applications, without requiring the use of personnel to understand its internal structure. If music integrated single chip, seemingly simple function, miniature electronic chip in the (the principle is different from the tape machine), you need a puter similar to the principle of the plex. Such as: music signal to digital form stored in memory (like ROM), read by the microcontroller, analog music into electrical signals (similar to the sound card). In large circuits, modular applications that greatly reduce the volume, simplifies the circuit and reduce the damage, error rate, but also easy to replace. 7. Microcontroller in the application field of automotive equipment SCM in automotive electronics is widely used, such as a vehicle engine controller, CAN busbased Intelligent Electronic Control Engine, GPS navigation system, abs antilock braking system, brake system, etc.. In addition, the MCU in business, finance, research, education, national defense, aerospace and other fields has a very wide range of applications. Application of six important part of learning MCU learning an important part of the six applications 1, Bus: We know that a circuit is always made by the devices connected by wires, in analog circuits, the connection does not bee a problem because the device is a serial relationship between the general, the device is not much connection between the , but the puter is not the same circuit, it is a microprocessor core, the device must be connected with the microprocessor, the device must be coordination between, so they need to connect on a lot, as if still analog circuit like the microprocessor and devices in the connection between the individual, the number of lines will be a little more surprising, therefore the introduction of the microprocessor bus Chong Each device Gong tong access connections, all devices 8 Shuju line all received eight public online, that is the equivalent of all devices together in parallel, but only this does not work, if there are two devices send data at the same time, a 0, a 1, then, whether the receiver received what is it? This situation is not allowed, so to be controlled by controlling the line, timesharing the device to work at any time only one device to send data (which can have multiple devices to receive both). Device39。 s data connection is known as the data bus, the device is called line of control all the control bus. Internal or external memory in the microcontroller and other devices have memory cells, the memory cell to be assigned addresses, you can use, distribution, of course, to address given in the form of electrical signals, and as more memory cells, so, for the address allocation The line is also more of these lines is called the address bus. 2, data, address, mand: The reason why these three together because of the nature of these three are the same the number, or are a string of 39。 0 39。 and 39。 139。 form the sequence. In other words, addresses, instructions are also data. Instruction: from single chip designer provides a number of monly used instructions with mnemonic we have a strict correspondence between the developer cannot be changed by the MCU. Address: the search for MCU internal, external storage units, input and output port based on the address of the internal unit value provided by the chip designer is good, cannot be changed, the external unit can be single chip developers to decide, but there are a number of address units is a must (see procedures for the implementation of the process). 3, P0 port, P2 and P3 of the second function I use: Beginners often on the P0 port, P2 and P3 port I use the second function puzzled that the second function and have a switch between the original function of the process, or have a directive, in fact, the port the second feature is automatic, do not need instructions to convert. Such as , respectively WR, RD signal, when the microchip processing machines external RAM or external I/O port, they are used as a second function, not as a generalpurpose I/O port used, so long as a microprocessor implementation of the MOVX instruction, there will be a corresponding signal sent from the or , no prior use of mands. In fact 39。 not as a generalpurpose I/O port use39。 is also not a 39。 no39。 but (user) 39。 not39。 as a generalpurpose I/O port to use. You can arrange the order of a SETB 39。 s instructions, and when the MCU execution to the instruction, the also make into a high, but users will not do so because this is usually will cause the system to collapse. 4, the program39。 s implementation: Reduction in power after the 8051 microcontroller within the program counter (PC) in the value of 0000 39。 , the process is always from the 000039。 units started, that is: the system must exist in ROM 0000 39。 this unit, and in 0000 39。 unit must be stored in a single instruction. 5, the stack: Stack is a region, is used to store data, there is no special about the region itself is a part of internal RAM, special access to its data storage and the way that the socalled 39。 advanced post out backward first out 39。 , and the stack has a special data transmission instructions that39。 PUSH 39。 and39。 POP 39。 , has a special expertise in its services unit, that is, the stack pointer SP, whenever a PUSH instruction execution, SP on (in the Based on the original value) automatically add 1, whenever the implementation of a POP instruction, SP will (on the basis of the original value) automatically by 1. As the SP values can be changed with the instructions, so long as the beginning of。