The function of the controller system of the automatic fiber laser cutting machine
The main processor is the core part of the controller system of the automatic fiber laser cutting machine. The function of the main processor is realized by the circuit. Therefore, the main processor circuit design is very important for the control system of the automatic fiber laser cutting machine. The main processor circuit of the automatic fiber laser cutting machine control system is mainly divided into three types: storage circuit, power supply circuit and reset circuit. Because SDRAM has the characteristics of high data transmission rate and high integration, it has become the most commonly used main memory in embedded systems. SDRAM usually selects two HY57V561620 chips as the main memory of the system.
The circuit of the SDRAM memory adopts a 3.3V power supply. When two SDRAM and ARM are connected in an expansion mode, they are introduced to the LDATA000 LDATA031 32-bit data bus. Due to the address of each part of the SDRAM chip row and column address lines The pins (A8~A0) are multiplexed. The row address of the response processed position is 9, and the column address is 13. Therefore, the total number of bits of the address signal is 22 bits, and the controller system's
The main memory capacity is 4Mxl6bitx4 pieces×2 piecesu003d64Mb42 NAND Flash storage circuit. In the embedded automatic fiber laser cutting machine control system, there is a large amount of information. This information is not allowed to be lost, so it is necessary to use non-volatile memory to store information . At present, non-volatile storage devices mainly include NAND flash memory and NOR flash memory. Therefore, the design of a NAND flash memory chip K9F12o8UOM is selected as a non-volatile memory with a capacity of 64m. The ARM processor K9F1208UM chip uses a 3,3V power supply. The bit data bus is connected and can be used to send address and control information. The symbols for other functions of the chip are: prepare/output R/NB(O), control command latch CLE(D, the type of input signal in parentheses, O represents the type of output signal, and I represents the type of input signal.
The design of the controller system requires a variety of power sources, of which the main processor circuit requires 12VDC, 5VDC, 3.3VDC and 1.8VDC. In addition, an emergency backup battery is required. When an unexpected power failure occurs, the battery power is sufficient to support For real-time clock operation, the LCD backlight power supply requires a 12VDC power supply, and the other parts of the circuit require three kinds of power supplies: ten SVDC, +3.3VDC and +1.8VDC. In order to avoid the trouble of multiple power input, the power input of the main processor circuit part is only ten +12VDC and Ten SDC2 types, other power sources are obtained by stepping down ten SDC. The power required for most of the devices in the main processor circuit is 3.3VDC, and the ten SvDC is stepped down through several AMSl17-3.3 chips and supplied to different Module circuit.
The reset circuit design is an important part of the ARM system circuit. When using the ARM system, it often needs to enter the reset state. The RC reset circuit is the simplest ARM system reset circuit. After the system is powered on, The low-voltage capacitor is at both ends, and nRESET is low after passing through 2 inverters; the capacitor is charged by 8304, and after the capacitor rises, it gradually approaches the voltage at both ends. When the input threshold voltage of the inverter U302A is not met, the system In the reset state: when the voltage across the capacitor after the U302A threshold voltage is reached, nRESET is high, and the system enters the normal operating state.
The embedded automatic fiber laser cutting machine is a combination of laser technology and The product of the combination of computer automation technology is a new type of fully automatic fiber laser cutting machine with embedded technology, laser technology and EDA technology as the core technology. The embedded fully automatic fiber laser cutting machine is mainly composed of laser system control system, power supply system, and scanning The galvanometer system and transmission mechanism, etc. This article focuses on the overall design of the embedded automatic fiber laser cutting machine controller and its component composition. The embedded automatic fiber laser cutting machine has fast marking speed, convenient carrying and integration High price, low price, high marking quality, etc., so it has become the mainstream direction of the development of automatic fiber laser cutting machine technology