RU208803U1 - CPU MODULE - Google Patents

Abstract

The central processing unit (CPU) module contains a multilayer printed circuit board, on the upper and lower sides of which flat conductors are made in the form of sections of a metallized coating, placed on a dielectric base and providing interconnection of electrical circuit elements asymmetrically mounted on the board, by a bus controller designed for data exchange via the bus between the CPU module and the input and/or output modules of the industrial controller, and the microcontroller, while it is equipped with a heatsink for natural convection, installed parallel to the board from the top side and made with ribs formed by parallel oriented channels blown by atmospheric air and directed to opposite side of the board. On the top side of the board, along one edge, there is a test interface and a switching voltage regulator, and a hard disk is installed above the temperature sensor, a clock generator is installed below the test interface above the central processor, which is installed above the RAM between the hard disk and the reset button located between the controller power supplies and a power detector. On the bottom side of the board, along one of its edges, DDR3 RAM and a PCIe to PCI converter are installed, and along the other two, perpendicularly located edges, ETX connectors are installed in pairs, and a switch is installed on one of these edges between the connectors, and a COM3 connector is installed near the screw . Through the use of the claimed technical solution, the implementation of the expansion of the arsenal of CPU modules is carried out by creating an alternative design, with the expansion of functionality, high reliability, ease of use and high maintainability.

Description

The utility model relates to the field of computer technology, in particular to the architecture of the central processor module (hereinafter referred to as the CPU module) of an industrial controller with programmable logic (hereinafter referred to as the PLC). PLC is a computing and control unit in automated process control systems (APCS). The expanding field of application and production volume of process control systems require the expansion of the arsenal and the improvement of technical means suitable for use as a CPU module with programmable logic. The CPU module is designed to build highly reliable embedded energy-efficient systems with small overall dimensions.

A device is known that consists of a backplane with the possibility of installing a processor module and expansion cards, in which the processor module and at least four expansion cards are installed directly into the mezzanine connectors of the backplane in one plane parallel to the backplane, which reduces the spatial volume and improves the reliability of computing nodes based on this backplane. The backplane contains a mezzanine connector for installing a processor module, interface connectors, a voltage converter, a power connector, a bus signal conditioner, a group of mezzanine connectors for installing expansion cards (RU 165470).

Known device containing:

- half-width chassis;

- one or more circuit board assemblies attached to a half-width chassis, generally oriented horizontally;

one or more processors mounted on at least one of the printed circuit board assemblies;

- heatsinks mounted on processors;

one or more stacks of two 3.5-inch hard drives attached to a chassis in which the half-width computing device is greater than 1U and no greater than 1.5U, the half-width computing device being rack-mountable containing a plurality of standard slots such that at least a portion of the width of one of the standard slots partially occupied by the half-width computing device is available for installation of at least a portion of an additional device; wherein the half-width computing device has a width equal to or less than half the width of a standard 19-inch slot. The height of the computing device is about 1.5U. At least one stack of two 3.5-inch hard drives is mounted on a half-width chassis behind at least one processor (RU 2610445).

Known CPU module industrial controller with programmable logic, containing:

- a central microprocessor designed to perform the task of the application program, as a result of which the input data from the sensors are processed, and the result of the processing of which is the output data intended for controlling the actuators;

- an additional microprocessor with a different core architecture from the core architecture of the central microprocessor and designed to perform exactly the same task with exactly the same sensor inputs as in the central microprocessor, it additionally contains a programmable logic integrated circuit with a bus controller designed to data exchange on the bus between the CPU module and the input and / or output modules of the industrial controller, and the microcontroller The central microprocessor (CM) is designed to perform the task of the application program;

- an additional microprocessor (DM), designed to perform exactly the same task with the same input data from the sensors as the CM;

- bus controller (CS), formed in the FPGA, is designed to exchange data over the bus;

- security microcontroller (MB) to control the operation of its functional core, contains a control core and a comparison module, which is designed to compare the results of calculations from parallel operating functional and control cores, the MB allows KSh to transfer output data to the bus if the condition for equality of results is met processing from the CM and DM, and the execution time of the task of the CM and DM is in a given time interval, and the results of the calculations of the functional and controlling cores are equal (RU 2703681, prototype).

The disadvantages of the known technical solutions are the narrowness of functionality, which is determined by the non-optimal placement of devices on the board, a significant amount of unused space and the lack of reliable heat removal from them, connections with the layout of its components that do not take into account the possibility of noise and local mutual heating of equipment that excite interference due to mutual influence of devices.

The technical problem solved by this utility model is the creation of an energy-efficient compact CPU module with programmable logic and the expansion of the arsenal of CPU modules.

The technical result, which provides a solution to this problem, is achieved by expanding the arsenal of CPU modules by creating an alternative design for the specified purpose, with an increase in functionality, high reliability, ease of use, and high maintainability.

The essence of the utility model lies in the fact that the central processing unit (CPU) module contains a multilayer printed circuit board on the upper and lower sides of which flat conductors are made in the form of sections of a metallized coating placed on a dielectric base and providing interconnection of electrical circuit elements asymmetrically mounted on the board, a bus controller designed to exchange data via the bus between the central processor module and the input and / or output modules of the industrial controller, and the microcontroller, while it is equipped with a natural convection heatsink installed parallel to the board from the top side and made with ribs formed by parallel oriented channels , purged with atmospheric air and directed in the opposite direction from the board, on the first side of the board there are:

- Central processing unit VX86DX3, with built-in graphics coprocessor;

- temperature sensor;

- SATA hard disk;

- RAM power management scheme; - pulse voltage regulator;

- double synchronous step-down voltage regulator;

- power supply controller;

- DDR3 RAM;

- generator of clock signals;

- power supply detector (supervisor);

- JTAG connector for testing and debugging;

- Reset button;

- LEDs.

and on the underside of the board:

- DDR3 RAM;

- PCIe to PCI converter, which is an input and output bus for external peripherals;

- switch;

- a group of ETX connectors for 100 pins;

- COM3 connector is a bidirectional serial interface.

Preferably, the test interface and switching voltage regulator are mounted on the top side of the board along one edge of the board, and the SATA hard drive is mounted above the temperature sensor, the clock driver is mounted below the test interface above the CPU, which is mounted above the RAM between the SATA hard drive and the reset button located between the power supply controller and the power detector.

Preferably, DDR3 RAM and a PCIe to PCI converter are installed on the bottom side of the board along one of its edges, and ETX connectors are installed in pairs along the other two, perpendicularly located edges, and a switch is installed on one of these edges between the connectors, and a switch is installed near the screw. COM3 connector.

Preferably, the heatsink is made with an area equal to that of the board.

Preferably, the heatsink is made of aluminum alloy and is screwed into the corners of the board.

Preferably, 2GB DDR3 Flash SSD chips are soldered onto the board.

Preferably, the real time clock is built into a processor having a clock frequency of 800 MHz.

Preferably a 8 GB SATA hard drive

Preferably, the reset button (RESET) is configured to restart the module at any time and is provided with additional LEDs installed next to it.

Preferably, the module is configured to connect/disconnect external devices and expansion cards to it in the off state.

In the drawing of FIG. 1 shows a general view of the CPU module at an angle from above, with the heatsink removed; in the drawing of Fig. 2 shows a general view of the CPU module at an angle from above, with a heatsink installed; in fig. 3 - location of the elements of the CPU module on the front side of the board; in fig. 4 the location of the elements of the CPU module on the bottom side of the board; figure 5 is a functional diagram of the CPU module.

The CPU module contains a multilayer printed circuit board, on both sides of which flat conductors are made in the form of sections of a metallized coating, placed on a dielectric base and providing interconnection of electrical circuit elements asymmetrically mounted on the board, and a bus controller designed for data exchange via the bus between the CPU module and input and/or output modules of an industrial controller, and a microcontroller.

The module is equipped with a heatsink for natural convection, installed parallel to the board on the upper side and made with ribbing formed by parallel oriented channels blown through with atmospheric air and directed in the opposite direction from the board. The product has the following main functional devices:

Vortex86DX3 processor with low power consumption and power dissipation;

2 GB DDR3-800 SDRAM soldered on the board.

Operating mode - single-channel, 32-bit;

FLASH disk with a capacity of 8 GB;

HDD port* supporting two UltraDMA/100 devices;

CompactFlash* port (shared with HDD port);

Serial ports:

COM1*: RS-232, 9 wires (full); maximum speed of exchange - up to 115.2 kbps, with the possibility of console input / output;

COM2*: RS-232, 9 wires (full); maximum exchange rate up to 115.2 kbps, with the possibility of console input / output;

COM3: 3 wires; maximum exchange rate - up to 115.2 kbps, with the possibility of console input / output.

One channel Ethernetl0/100 Mbps;

Four USB 2.0 channels*;

Expansion buses ISA and PCI*:

16-bit ISA bus and

32-bit PCI bus

Watchdog;

CMOS+FRAM for configuration storage;

FlashBIOS 2 MB built into the processor;

Real time clock;

PS/2 keyboard and mouse port*;

Video controller:

2D accelerator;

video memory - up to 64 MB (allocated from the system);

the ability to connect an RGB monitor* with a resolution of up to 1920x1440 (60 Hz).

On the top side of the board are placed, in particular, the following active elements:

- VX86DX3 CPU (800 MHz) with integrated graphics coprocessor

- temperature sensor;

- 8 GB SSD flash drive;

- RAM power management scheme;

- pulse voltage regulator (voltage stabilizer);

- double synchronous step-down voltage regulator;

- power supply controller;

- DDR3 RAM;

- generator of clock signals;

- power supply detector (supervisor);

- JTAG connector for testing and debugging (service connector for programming);

- Reset button.

On the top side of the board, along one edge, there is a test connector and a switching voltage regulator, and a flash drive is mounted above the temperature sensor, a clock generator is installed below the test connector above the CPU chip, which is installed above the RAM chip between the flash drive and the reset button, located between the power supply controller and the power detector.

On the bottom side of the board are placed, in particular, the following active elements:

- DDR3 RAM;

- PCIe to PCI interface converter;

- a group of ETX connectors (port) for 100 pins;

- COM3 serial interface connector.

On the bottom side of the board, along one of its edges, DDR3 RAM and a PCIe to PCI controller/converter are installed, and along the other two, perpendicularly located edges, ETX connectors are installed in pairs, and a COM3 connector is installed near the screw.

The radiator is made with an area almost equal to the area of the board. The heatsink is made of aluminum alloy and fixed with screws at the corners of the board.

A multilayer printed circuit board has outer layers and through holes for installing components, and power and interconnect polygons are located in the inner layers. It is possible to apply a moisture-proof coating to ensure the operation of the product in conditions of high humidity.

DDR3 RAM chips with a total capacity of 2 GB are soldered onto the board. The real-time clock is built into the processor, which has a clock frequency of 800 MHz. The SSD flash drive is made with a capacity of 8 GB. The reset button (RESET) is configured to restart the module at any time. The module is configured to connect/disconnect external devices and expansion cards to it in the off state.

Since the module is intended primarily for use in specialized products for transport, it does not use (absent) interfaces: SATA, LPT, Audio, LVDS.

In the drawing of FIG. 1 marked:

1 - Multilayer printed circuit board;

2 - Central processor VX86DX3 (clock frequency 800 MHz) with integrated graphics coprocessor;

5 - 8 GB SSD flash drive;

10 - RAM DDR3 memory (RAM);

21 - Mounting hole.

In the drawing of Fig.2. marked: 1 - Multilayer printed circuit board; 14 - Reset button.

22 - Radiator for heat removal of the central processor (cooling radiator);

23 - Fixing screw;

In the drawing of FIG. 3. marked:

1 - Multilayer printed circuit board;

2 - Central processor VX86DX3 (clock frequency 800 MHz) with integrated graphics coprocessor;

3 - RS-232 interface transceiver;

4 - digital temperature sensor;

5 - 8 GB SSD flash drive;

6 - FRAM memory chip, non-volatile random access memory;

7 - Shaper reference voltage for RAM;

9 - Inductors in power circuits;

9 - Controllers of power supplies (management of turning on power supplies);

10 - RAM DDR3 memory (RAM);

11 - Voltage stabilizer (DC voltage regulator) 1V;

12 - Power Supervisor (3V microprocessor supply voltage control circuit);

13 - JTAG connector for testing and debugging (service connector for programming);

14 - Reset button;

15 - Protective diode in power circuits against polarity reversal;

16 - Voltage stabilizer (DC voltage regulator) 3.3V and 1.8V;

17 - Voltage stabilizer (DC voltage regulator) 1.2V;

18 - Voltage stabilizer (DC voltage regulator) of the processor core 0.95 V;

19 - Voltage stabilizer (DC voltage regulator) 3.3V;

20 - PCIe clock generator (Clock Generators PCIe).

In the drawing of FIG. 4. marked:

10 - RAM memory (random access memory);

13 - JTAG connector for testing and debugging (service connector for programming);

24 - PCI interface controller/converter (PCIe-to-PCI Bridge);

25 - Connector (port) of the serial interface COM3;

26 - High-density connectors (ports) of the ETX standard (ETX Connector).

Main technical characteristics of the product.

CPU:

- Vortex86DX3, 2 cores;

- Clock frequency 800 MHz;

- 32-bit x86 kernel;

- 32 bit memory bus;

- Cache-memory of the 1st level (64 KB);

- Cache-memory of the 2nd level (512 KB);

- Extensions MMX, SSE.

RAM:

- soldered DDR3-800 SDRAM 2 GB;

- bus frequency 400 MHz.

Integrated graphics coprocessor:

- 2D accelerator;

- the amount of video memory allocated from the main up to 64 MB.

Встроенная энергонезависимая память:

Built-in non-volatile memory:

- 8 KB FRAM for configuration storage;

- in the absence of a battery, the CMOS settings are stored in the FRAM memory.

FLASH BIOS:

FLASH BIOS:

- 2 MB, with the possibility of modification in the system.

FLASH disk:

- 8 GB soldered disk, disk controller connected to SATA interface;

- used memory type - NANDFlash (SLC).

I/O ports:

- XP1: 32-bit PCI bus, frequency 33 MHz;

- XP1: connect up to four USB 1.1/2.0 devices, support booting from USB devices;

- XP1: stereo line input/output, microphone input (mono);

- XP2: 16-bit ISA8/16 MHz bus;

- XP3: RGB monitor port up to 1920×1440 @ 60Hz;

- XP3: serial ports COM1/COM2 (complete set of signals), compatible with model 16C550, baud rate up to 3 Mbaud;

- XP3: PS/2 keyboard and mouse port;

- XP4: HDD connection port, 1 channel Primary, connection up to two devices, support for Ultra-DMAIOO;

- XP4: LAN port 10/100 Mbps;

- XP4: I2C port, 100/400Kbps;

- XP4: SMB port;

- XP4: "SpeakerOut" port for connecting a buzzer;

- XP4: "RTCbattery" port for connecting battery power.

Real time clock (battery powered by carrier board);

Console ports:

- COM1/COM2/COM3.

Digital Temperature Sensor:

- temperature measurement from minus 55°С to plus 125°С;

- resolution 12 bits + sign;

- unit price of the least significant digit 0.0625°С;

- conversion time up to 1000 ms.

Watchdog:

- Programmable response interval from 100 µs to 3 min.

OS Software Compatibility:

- FreeDOS;

- Linux Debian8;

- Microsoft™ Windows 7 Embedded.

Supply voltage:

- from plus 4.75 to plus 5.25 V;

- from plus 2.5 to plus 3.3 V (battery supply voltage, used to operate the real time clock when the main supply voltage is off).

Power Consumption: 6W (5V @ 1.2A);

Working temperature range - from minus 40°С to plus 85°С;

Humidity: up to 80% non-condensing;

Shock/vibration resistance: 50g/5g;

Time Between Failures (MTBF): not less than 50,000 hours;

Overall dimensions of the product: 114.0 × 95.0 × 14.0 mm;

Product weight: no more than 100 g.

CPU Unit Hardware Special Features (Product):

The microprocessor CPU Vortex86DX3 is designed with low power consumption and power dissipation, the clock frequency is 800 MHz.

DDR3-800 SDRAM chips with a total capacity of 2 GB are soldered onto the board. Operating mode - single-channel, 32-bit.

To store the main (working) copy of the BIOS, a 2 MB SPI-Flash built into the processor chip is used.

The real time clock is built into the processor. The operation of the clock when the power is off is provided through the "RTCbattery" port from the carrier board. The CMOS settings are stored in non-volatile FRAM. SATA Flash Disk - one 8GB SSDFlashDisk PP15A423-32G6 from Phison is installed on the board. Distinctive features: SLC memory, ECC support, extended temperature range (from minus 40°С to plus 85°С). FBGA 16x20mm package. Serial ports COM1, COM2 and COM3

The COM1 and COM2 ports operate as a full 9-wire RS-232 interface. The COM3 port operates in the mode of an incomplete 3-wire RS-232 interface and is routed to the XP5 connector (IDC with a pitch of 2.54 mm) (Fig. 2.3). The XP5 connector is located on the product board. The pin numbering starts from the XP5 marking.

RESET button (SW1) The product has a RESET button to restart at any time. The button is located next to the LEDs.

The product fully complies with the modern ETX 3.0 specification (motherboard form factor), in terms of characteristics: the overall dimensions of the module and the location of the connecting connectors X1, X2, X3, X4.

The CPU Unit (Product) works as follows.

The product is used primarily as part of electronic equipment installed in vehicles and unattended equipment operated in a temporary mode 24x7.

The CPU module is powered by an external DC source with a fixed voltage value of plus 5V±5%.

When the product is installed in the carrier board, the supply voltage to the product is supplied through the contacts of the XP1…XP4 connectors. For stable operation of the product (excluding additional external devices), an external power source must provide a current of at least 2.0 A.

Connection (disconnection) to an external source (from an external source) of direct current, as well as external devices and expansion boards of functionality to the product (from the product) in the switched on state is not allowed.

Permissible operating conditions operating temperature range - from minus 40°С to plus 85°С; relative air humidity - up to 80% (without moisture condensation);

Permissible mechanical effects: sinusoidal vibration, acceleration amplitude - 5 g; resistance to single impacts, peak acceleration - 100 g; resistance to multiple impacts, peak acceleration - 50 g.

During operation, the power supply controllers perform power-on control. After the power is supplied and stabilized by the power supply system, the JTAG connector tests and debugs the module. The PCIe bus clock generator is activated. The module is programmed from a personal computer PC (not shown). The software is loaded into the FRAM chip of non-volatile random access memory and the module starts monitoring external interfaces or sending data stored in the DDR3 RAM chip or memory card through these interfaces.

When a processor module is connected to a PC, the processor module receives signals containing data and instructions (interface interrogation, request for data from memory, request for calculations on data) and outputs signals with processed data back to the PC via the corresponding bus.

In the general case, the execution of the program consists in reading input/output data from external controlled and controlled devices, subsequent data processing according to the algorithm specified by the program and issuing the resulting control data to data input/output modules and external controlled and controlled devices. data input-output modules are processed cyclically, with a specified period of time.

A detailed algorithm for interaction with a PC is configured using the software installed on the processor module. When network modules are connected to the connectors and there is a network connection to the network interface chips, protocols are automatically selected according to the settings to achieve the specified or most efficient network operation. Upon completion of the settings, data is exchanged with one or two external network nodes. At the same time, discrete signals can be received and output through the connectors. If necessary, external USB devices can be connected via the Micro USB port. If an error in the checksum of the BIOS parameters is detected during the reset of the calculator, then the BIOS parameters are loaded from the FRAM memory chip. This improves the reliability of the module during long-term maintenance-free operation.

Data received by the VX86DX3 processor from a PC can be transferred directly to the appropriate I / O means, and also perceived as a task or commands for execution by the VX86DX3 processor, in accordance with the program embedded in the read-only memory device (RAM DDR3, RAM).

During the operation of the product, its equipment performs, in particular, the following:

The SSD flash drive serves as a computer non-volatile non-mechanical storage device based on memory chips. In addition to memory chips, it contains a control controller.

RAM implements the purpose of dynamic memory modules containing semiconductor integrated circuits organized according to the principle of random access devices. Dynamic type memory has a higher density, which allows more memory cells to be placed on the same area of \u200b\u200bthe silicon crystal.

The RS-232 interface transceiver is used to coordinate electrical parameters, process and transmit information using serial data channels.

The FRAM (Random Access Memory) memory chip uses a ferroelectric layer to provide non-volatility.

The reference voltage driver for the RAM maintains a highly stable constant voltage at its output to set the output voltage of the stabilized power supply of analog-to-digital converters, the operating modes of analog and digital integrated circuits and systems, and as a voltage standard.

Power supply controllers provide the issuance of control actions and control of the output parameters of power supplies.

DDR3 RAM (Random Access Memory) implements Double Data Rate Synchronous Dynamic Random Access Memory functions

The voltage stabilizer implements the maintenance of the output voltage within narrow limits, with a significant change in the input voltage and output load current.

The power supervisor ensures that the controller is held in a reset state until the supply voltage reaches a set value and stabilizes, or the controller resets when the supply voltage drops below a critical level or during a sudden voltage drop. The protective diode serves to protect against breakdown.

The clock pulse generator (clock frequency generator) is designed to synchronize ongoing processes.

Switching voltage regulators are used to regulate the DC voltage, at which the DC source is periodically switched on with a certain frequency.

The reset button (RESET) is used, if necessary, to restart the module at any time.

During operation, the radiator serves to dissipate the heat generated by the equipment in the air.

At the same time, the optimal layout of functional elements and their placement on both sides of the board make it possible to meet the following design requirements:

- layout density, determined by the ratio of the number of active elements to the area of the board, that is, the maximum filling of the structural space allocated to the elements on the board surface is realized;

- the arrangement of the elements in such a way as to dissipate approximately the same power in order to avoid local overheating on the board.

The functional completeness of the CPU module allows:

- automate assembly and installation processes;

- ensure maintainability with minimal labor costs in case of failure of any of the active elements;

- increase the reliability of the connections of each of the active elements and the module as a whole.

- to be used for building a wide range of automatic and automated control and process control systems.

Thus, through the use of the claimed technical solution, the implementation of the expansion of the arsenal of CPU modules is carried out by creating an alternative design, with the expansion of functionality, high reliability, ease of use, and high maintainability.

Claims (29)

1. A central processor module containing a multilayer printed circuit board, on the upper and lower sides of which flat conductors are made in the form of sections of a metallized coating, placed on a dielectric base and providing interconnection of electrical circuit elements asymmetrically mounted on the board, by a bus controller designed for data exchange via a bus between the central processor unit and input and/or output modules of an industrial controller, and a microcontroller, characterized in that it is equipped with a heatsink for natural convection, installed parallel to the board on the upper side and made with ribs formed by parallel oriented channels blown by atmospheric air and directed in the opposite direction from the board, on the first side of the board there are: - VX86DX3 CPU with built-in graphics coprocessor; - temperature sensor; - SATA hard drive - RAM power management scheme; - pulse voltage regulator; - double synchronous step-down voltage regulator; - power supply controller; - DDR3 RAM; - generator of clock signals; - power supply detector (supervisor); - JTAG connector for testing and debugging; - Reset button; - LEDs, and on the underside of the board: - DDR3 RAM; - PCIe to PCI converter, which is an input and output bus for external peripherals; - switch; - a group of ETX connectors for 100 pins; - COM3 connector, which is a bidirectional serial interface. 2. The module according to claim 1, characterized in that on the upper side of the board along one of its edges, a testing interface and a switching voltage regulator are installed, and a SATA hard drive is installed above the temperature sensor, a clock generator is installed below the testing interface above the central processor, which is installed above the RAM between the hard drive and the reset button located between the power supply controller and the power detector. 3. The module according to any one of claims 1, 2, characterized in that DDR3 RAM and a PCIe to PCI converter are installed on the bottom side of the board along one of its edges, and ETX connectors are installed in pairs along the other two perpendicular edges, and on one of these edges, a switch is installed between the connectors, and a COM3 connector is installed near the screw. 4. The module according to any one of claims 1, 2, characterized in that the heatsink is made with an area equal to the area of the board. 5. A module according to any one of claims 1, 2, characterized in that the heatsink is made of aluminum alloy and is fixed with screws at the corners of the board. 6. A module according to any one of claims 1, 2, characterized in that Flash SSD chips of DDR3 RAM with a total volume of 2 GB are soldered onto the board. 7. The module according to any one of claims 1, 2, characterized in that the real time clock is additionally built into the central processor. 8. The module according to any one of claims 1, 2, characterized in that the SATA hard drive has a capacity of 8 GB. 9. The module according to any one of claims 1, 2, characterized in that the "reset" (RESET) button is configured to restart the module at an arbitrary time and is additionally equipped with LEDs installed next to it. 10. The module according to any one of claims 1, 2, characterized in that it is configured to connect/disconnect external devices and expansion cards to it in the off state.

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