CN114281752A - An autonomous controllable computer module and motherboard based on Loongson 2H - Google Patents
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Abstract
The invention discloses an autonomous controllable computer module and a mainboard based on Loongson 2H, and the technical scheme is as follows: the device comprises a Loongson 2H processor, a connector, a PHY chip, a DVO-to-LVDS chip, a power conversion chip, an SDRAM memory chip and a NAND flash memory; the Loongson 2H processor is connected with the DVO-to-LVDS chip, the connector is connected with the DVO-to-LVDS chip, the DVO-to-LVDS chip is used for converting a DVO signal into an LVDS signal, the Loongson 2H processor is connected with the PHY chip, the PHY chip is connected with the connector, and a signal led out by the Loongson 2H processor is connected with a corresponding port of the connector; the pin of the SDRAM memory chip is connected with the pin of the Loongson 2H processor, and the NAND flash memory is connected with the interface of the Loongson 2H processor; the power conversion chip is used for converting the voltage input by the connector into the working voltage required by each chip. The invention can meet the requirements of most control systems and information systems, and has the advantages of strong expansibility, compact structure, low power consumption and autonomous control.
Description
Technical Field
The invention relates to the field of computer modules, in particular to an autonomous controllable computer module and a mainboard based on Loongson 2H.
Background
Most of the existing domestic computers are developed following projects, the difference between the hardware performance and the function required by each project is very small, and the difference between the required interfaces and the required sizes is large. Thus, following the development of the project, each project needs to repeat the work of circuit diagram design, device model selection, PCB design, production, debugging and the like, and a great amount of time, manpower and material resources are wasted.
Therefore, how to design a universal domestic computer module according to the COM Express compact standard and following the Type6 pin specification is a technical problem which needs to be solved at present.
Disclosure of Invention
In view of the above defects or improvement requirements of the prior art, the present invention aims to provide an autonomous controllable computer module and a motherboard based on a Loongson 2H, wherein a Loongson 2H processor is adopted to design a general computer module according to the COM Express compact standard and following the Type6 pin specification, and the two modules can be combined to meet the requirements of most domestic control systems and information systems only by designing a support plate of the module along with the project.
The technical purpose of the invention is realized by the following technical scheme:
in a first aspect, an autonomous controllable computer module based on Loongson 2H is provided, which comprises a Loongson 2H processor, a connector, a PHY chip, a DVO-to-LVDS chip, a power conversion chip, an SDRAM (synchronous dynamic random access memory) memory chip and an NAND flash memory;
the Loongson 2H processor is connected with a DVO-to-LVDS chip, the connector is connected with the DVO-to-LVDS chip, the DVO-to-LVDS chip is used for converting a DVO signal into an LVDS signal, the Loongson 2H processor is connected with a PHY chip, the PHY chip is connected with the connector, and a signal externally led out by the Loongson 2H processor is connected with a corresponding port of the connector;
the pin of the SDRAM memory chip is connected with the pin of the Loongson 2H processor, and the NAND flash memory is connected with the interface of the Loongson 2H processor;
the power conversion chip is used for converting the voltage input by the connector into the voltage required by the operation of the Loongson 2H processor, the PHY chip, the DVO-to-LVDS chip, the SDRAM memory chip and the NAND flash memory.
The invention adopts a Loongson 2H processor, conforms to the specification of Type6 pins according to the COM Express compact standard. Carrying an SDRAM memory chip and an NAND flash memory on board; the LVDS video signal output is realized by converting DVO into an LVDS chip; 6 paths of USB interfaces and 2 paths of SATA hard disk interfaces can be provided externally through the connector; the 1-path gigabit Ethernet can be expanded through the PHY chip, and the adaptive 10/100/1000Mbps can be realized; the system RTC function is provided; the working temperature is-40 ℃ to 70 ℃, and the storage temperature is-45 ℃ to 85 ℃. The requirement of most of control system and information system can be satisfied, but possess expansibility strong, compact structure, the low power dissipation, independently controllable function.
Further, the signals externally led out by the loongson 2H processor include Ethernet signals, Audio signals, LPC signals, I2C signals, GPIO signals, SATA signals, USB signals, PCIE signals, VGA signals, SPI signals, and DVO signals;
the ports of the connector comprise an Ethernet interface, an Audio interface, an LPC interface, an I2C bus interface, a GPIO interface, an SATA interface, a USB interface, a PCIE interface, a VGA interface, an SPI interface and an LVDS interface;
the DVO signal is connected with a DVO-to-LVDS chip, the DVO-to-LVDS chip is connected with the LVDS interface, and a pin of a GMAC controller of the Loongson 2H processor is connected with the PHY chip.
Furthermore, pins of the SDRAM memory chip are connected to memory channels of the loongson 2H processor, the SDRAM memory chip includes four DDR3 memory chips, and the four DDR3 memory chips are connected to the four memory channels.
Further, the connector also comprises 12V and 5V power supply interfaces, and the power conversion chip comprises an LTM4644 chip, an LTM4633 chip and four RT9018A chips; the LTM4644 chip is connected with a 12V power supply interface of the connector and provides 5V, 1.8V, 2.5V and 1.5V power supplies to the outside; the LTM4633 chip is connected with a 12V power supply interface of the connector and provides 1.15V, 1.2V and 3.3V power supplies to the outside; the RT9018A chip is connected with the 5V power supply interface of the connector and provides 2.5V, 3.3V and 1.15V power supply to the outside.
Further, the Loongson 2H processor further comprises a NAND controller, the NAND flash memory is connected with pins of the NAND controller, and the capacity of the NAND flash memory is 1 GB.
Further, the USB signal provides 6 channels of the USB2.0 interface.
Furthermore, the SATA signal provides 2 SATA2.0 hard disk interfaces for transmitting data to a hard disk to realize data storage.
Further, the PCIE signal provides 1 PCIE X4 interface to the outside, and the PCIE X4 interface is configured to configure 4 PCIE X1 interfaces.
Further, the 1.15V power supply and the 1.1V power supply of the LTM4633 chip to the Loongson 2H processor are combined into a power supply.
In a second aspect, a computer motherboard is provided, which includes the loongson 2H-based autonomous controllable computer module described in the first aspect.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts a Loongson 2H processor, conforms to the specification of Type6 pins according to the COM Express compact standard. 2GB DDR3 memory on board, 1GB NAND storage; the LVDS + VGA video signal output is supported; providing 6 paths of USB 2.0; 2 paths of SATA2.0 hard disk interfaces; 1 path of gigabit Ethernet is extended, and the adaptive 10/100/1000Mbps can be realized; the system RTC function is provided; the working temperature can be-40-70 ℃, and the storage temperature can be-45-85 ℃, so that the requirements of most control systems and information systems can be met, the expansibility is strong, the power consumption is low, and the autonomous control is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a block diagram of a computer module according to an embodiment of the present invention;
fig. 2 is a topology structure diagram of a 5V power supply according to an embodiment of the invention;
fig. 3 is a 12V power supply topology structure diagram according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example (b):
as shown in fig. 1, an embodiment of the present application provides an autonomous controllable computer module based on a loongson 2H, which includes a loongson 2H processor, a connector, a PHY chip, a DVO-to-LVDS chip, a power conversion chip, an SDRAM memory chip, and a NAND flash memory;
the loongson 2H processor is connected with the DVO-to-LVDS chip, the connector is connected with the DVO-to-LVDS chip, the DVO-to-LVDS chip is used for converting a DVO signal into an LVDS signal, the loongson 2H processor is connected with the PHY chip, the PHY chip is connected with the connector, and a signal led out by the loongson 2H processor is connected with a corresponding port of the connector;
the pin of the SDRAM memory chip is connected with the pin of the Loongson 2H processor, and the NAND flash memory is connected with the interface of the Loongson 2H processor;
the power conversion chip is used for converting the voltage input by the connector into the voltage required by the operation of the loongson 2H processor, the PHY chip, the DVO-to-LVDS chip, the SDRAM chip and the NAND flash memory.
Specifically, the computer module follows the specification of a Type6 pin according to the COM Express compact standard, the size is 95mm multiplied by 95mm, the dominant frequency of the Loongson 2H processor is 1GHz, the computer module is realized by adopting a 65nm process, and a fixed-point processor, a floating-point processor, a streaming media processing and graphic image processing function, a south bridge, a north bridge and other matched chipset functions are integrated on the chip, and the main technical indexes are as follows: the MIPS 64R 2 system structure is compatible, comprises 2 full-flow 64-bit double-precision floating point multiply-add units, 64KB data Cache, 64KB instruction Cache and 512K secondary Cache, and has industrial-grade working devices from minus 40 ℃ to plus 85 ℃. The Ethernet signal output of the Loongson 2H processor is realized through the PHY chip, the computer module is supplied with power by 12V and 5V from the input of the connector, and the voltage required by the work of each chip is generated through the power conversion chip.
In a further embodiment of the present application, the signals externally led out by the loongson 2H processor include Ethernet signals, Audio signals, LPC signals, I2C signals, GPIO signals, SATA signals, USB signals, PCIE signals, VGA signals, SPI signals, and DVO signals;
the port of the connector comprises an Ethernet interface, an Audio interface, an LPC interface, an I2C bus interface, a GPIO interface, an SATA interface, a USB interface, a PCIE interface, a VGA interface, an SPI interface and an LVDS interface;
the DVO signal is connected with a DVO-to-LVDS chip, the DVO-to-LVDS chip is connected with an LVDS interface, and a pin of a GMAC controller of the Loongson 2H processor is connected with the PHY chip.
Specifically, a plurality of signals are externally led out from the loongson 2H processor, so that the connector needs to be provided with a signal interface corresponding to the connector for realizing signal transmission, the connector is also applied to internal connection of chip packaging, and pins are connected with the PCB. The connector comprises Ethernet, Audio, LPC, I2C, GPIO, SATA, USB, PCIE, VGA, SPI and LVDS signal interfaces and also comprises 12V and 5V power supply interfaces, and the 12V and 5V power supply interfaces are used for supplying voltage required by the operation of each chip of the computer module. The Loongson 2H processor provides a two-way GMAC controller, the embodiment only uses a GMAC0 controller, the pins of the GMAC0 controller are connected with the pins of the PHY chip, and the MDI signal generated by the PHY chip is directly led to the connector. The PHY chip of this embodiment adopts a KSZ9021 chip, and has the following main technical indexes: the core working voltage is 1.2V, the I/O interface working voltage is 3.3V, the transceiver working voltage is 3.3V, the size of the KSZ9021 chip is 7 multiplied by 7mm, and the working temperature range is-40 ℃ to 85 ℃. The display controller of the loongson 2H processor can provide a DVO interface, the DVO signal is converted into an LVDS signal to be output to expand the LVDS function, and a control pin of the LVDS is realized by adopting a CPIO and PWM multiplexing pin. The model SN65LVDS93A is adopted in the DVO-to-LVDS chip, and the main technical indexes are as follows: the working voltage is 3.3V, the maximum transmission speed is 3780Mbps, the size is 14 multiplied by 6.1mm, and the working temperature range is-40 ℃ to 85 ℃.
In a further embodiment of the present application, the pin of the SDRAM memory chip is connected to the memory channel of the loongson 2H processor, the SDRAM memory chip includes four DDR3 memory chips, and the four DDR3 memory chips are connected to the four memory channels.
Specifically, the SDRAM memory comprises 4 DDR3 memory chips, the model IS IS43TR16256A-125KBLI, and the total capacity IS 2 GB. Pins of the SDRAM memory chip are connected with pins of a DDR2 or 3 controller of the Loongson 2H processor, the Loongson 2H chip supports DDR2/DDR3 memory, and considering that the performance of an inner-layer chip of the DDR3 IS better and the power consumption IS lower, therefore, DDR3-SDRAM particles are adopted to achieve the memory function in the embodiment, and DDR3 memory chips are chips of models IS43TR16256A-125 KBLI. The main technical indexes of the IS43TR16256A-125KBLI chip are as follows: the storage capacity is 4Gbit, the nominal power supply voltage is 1.5V, the maximum working frequency is 800MHz, the size is 13 multiplied by 9 multiplied by 1.2mm, and the working temperature range is-40 ℃ to 95 ℃.
In a further embodiment of the present application, the connector further includes 12V and 5V power supply interfaces, and the power conversion chip includes an LTM4644 chip, an LTM4633 chip and four RT9018A chips; the LTM4644 chip is connected with a 12V power supply interface of the connector and provides 5V, 1.8V, 2.5V and 1.5V power supply outwards; the LTM4633 chip is connected with a 12V power supply interface of the connector and supplies power of 1.15V, 1.2V and 3.3V to the outside; the RT9018A chip is connected with a 5V power supply interface of the connector and provides 2.5V, 3.3V and 1.15V power supply to the outside.
Specifically, the power domains required by the computer module include: (1) the SOC domain, the RSM domain, the CPU domain and the power supply of the HT PHY CORE of the Loongson 2H processor are 1.15V; (2) a power supply of a PCIE signal and SATA signal sending end and a power supply of a receiving end of the Loongson 2H processor are 1.2V; (3) the power supply of the DDR memory interface of the Loongson 2H processor is 1.5V; (4) the power supply of the Loongson 2H processor HT PHY IO is 1.8V; (5) RSM domain IO of the Loongson 2H processor, USB signals and power supply of VGA signals are 2.5V; (6) RSM field IO of Loongson 2H treater, USB signal, SOC field, the power 3.3V of IO.
In this embodiment, the LTM4644 and LTM4633 power conversion chips are used to convert 12V and 5V power supplies into different operating voltages of the power domains, referring to fig. 2 and 3, the main technical indexes of the LTM4644 are as follows: the input voltage range is 4-14V, the output voltage range is 0.6-5.5V, the maximum power is 5.5W, the size is 9 multiplied by 15 multiplied by 5mm, and the working temperature range is-40 ℃ to 125 ℃. The main technical indexes of LTM4633 are as follows: the input voltage range is 4.7-16V, the output voltage range is 0.8-5.5V, the maximum power is 5.5W, the size is 15 multiplied by 5mm, and the working temperature range is-55 ℃ to 125 ℃. The main technical indexes of RT9018A are as follows: the size is 4.8 multiplied by 5.8 multiplied by 1.3mm, and the working temperature range is-55 ℃ to 125 ℃.
In a further embodiment of the present application, the loongson 2H processor further includes a NAND controller, the NAND flash memory is connected to a pin of the NAND controller, and the capacity of the NAND flash memory is 1 GB.
Specifically, the NAND flash memory adopts a flash memory with the model number MT29F1G08 ABADAAWPIT-NC, and the total capacity is 1 GB. The NAND controller interface of the Loongson 2H processor is connected with a 1GB NAND flash memory, and the main technical indexes of MT29F1G08 ABADAAWPIT-NC are as follows: the storage capacity is 1GB, the working voltage is 3.3V, the size is 18.4 multiplied by 12 multiplied by 1.2mm, the working temperature range is-40 ℃ to 70 DEG C
In a further embodiment of the present application, the USB signal provides 6 external interfaces of the USB 2.0.
Specifically, because each chip of the computer module can be integrated on the mainboard, the USB signal provided by the loongson 2H chip is provided to the outside for 6-way USB2.0 interface, which is used to connect the storage device, such as data line, USB disk, etc.
In a further embodiment of the present application, the SATA signal provides 2 SATA2.0 hard disk interfaces for transmitting data to a hard disk to realize data storage.
In particular, SATA is an abbreviation for Serial ATA, Serial ATA. The SATA bus is a computer bus and mainly has the functions of data transmission between a mainboard and a large number of storage devices (such as hard disks and optical disk drives), the SATA bus uses embedded clock signals and has stronger error correction capability, compared with the prior art, the SATA bus has the greatest difference that transmission instructions (not only data) can be checked, if errors are found, the data can be automatically corrected, the reliability of data transmission is improved to a great extent, and the serial interface also has the advantages of simple structure and hot plug support.
In a further embodiment of the present application, the PCIE signal provides 1 PCIE X4 interface to the outside, and the PCIE X4 interface is configured to configure 4 PCIE X1 interfaces.
Specifically, the PCIE interface may support high-order power management, hot plug, synchronous data transmission, and bandwidth optimization for preferentially transmitting data.
In a further embodiment of the present application, the 1.15V and 1.1V power supplies of the LTM4633 chip to the loongson 2H processor are combined into a single power supply.
Specifically, referring to fig. 3, 1.15V _2H _ SOC, VDD _ CPU, and 1.1V are combined into one power supply, which can reduce the layout difficulty of the PCB board and reduce the number of components, so the computer module of the present application further has the characteristic of compact structure, and it should be noted that the 1.1V voltage includes the 1.1V power supply and other 1.1V power supplies supplied to the loongson 2H chip phase-locked loop.
The embodiment also provides a computer mainboard which comprises the autonomous controllable computer module based on the Loongson 2H.
Specifically, all chips of the computer module in the embodiment of the application are integrated on the mainboard, the mainboard matched with the computer module is designed for what mainboard required by a project, and the requirements of most domestic control systems and information systems can be met by combining the mainboard and the modules. It is also feasible to apply the computer motherboard to a computer device, and the computer device can naturally meet the requirements of the control system and the information system.
In conclusion, the computer module provided by the invention adopts the autonomous controllable Loongson 2H processor, and can meet the requirements of most domestic control systems and information systems based on the design concept of modularization and generalization.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An autonomous controllable computer module based on Loongson 2H is characterized by comprising a Loongson 2H processor, a connector, a PHY chip, a DVO-to-LVDS chip, a power conversion chip, an SDRAM memory chip and an NAND flash memory;
the Loongson 2H processor is connected with a DVO-to-LVDS chip, the connector is connected with the DVO-to-LVDS chip, the DVO-to-LVDS chip is used for converting a DVO signal into an LVDS signal, the Loongson 2H processor is connected with a PHY chip, the PHY chip is connected with the connector, and a signal externally led out by the Loongson 2H processor is connected with a corresponding port of the connector;
the pin of the SDRAM memory chip is connected with the pin of the Loongson 2H processor, and the NAND flash memory is connected with the interface of the Loongson 2H processor;
the power conversion chip is used for converting the voltage input by the connector into the voltage required by the operation of the Loongson 2H processor, the PHY chip, the DVO-to-LVDS chip, the SDRAM memory chip and the NAND flash memory.
2. The Loongson 2H-based autonomous controllable computer module according to claim 1, wherein the signals externally led out by the Loongson 2H processor include Ethernet signals, Audio signals, LPC signals, I2C signals, GPIO signals, SATA signals, USB signals, PCIE signals, VGA signals, SPI signals and DVO signals;
the ports of the connector comprise an Ethernet interface, an Audio interface, an LPC interface, an I2C bus interface, a GPIO interface, an SATA interface, a USB interface, a PCIE interface, a VGA interface, an SPI interface and an LVDS interface;
the DVO signal is connected with a DVO-to-LVDS chip, the DVO-to-LVDS chip is connected with the LVDS interface, and a pin of a GMAC controller of the Loongson 2H processor is connected with the PHY chip.
3. The loongson 2H-based autonomous controllable computer module as recited in claim 1, characterized in that pins of said SDRAM memory chip are connected to memory channels of said loongson 2H processor, said SDRAM memory chip comprises four DDR3 memory chips, and four DDR3 memory chips are connected to four said memory channels.
4. The loongson 2H-based autonomous controllable computer module as claimed in claim 1, wherein said connector further comprises 12V and 5V power supply interfaces, and said power conversion chip comprises LTM4644 chip, LTM4633 chip and four RT9018A chips; the LTM4644 chip is connected with a 12V power supply interface of the connector and provides 5V, 1.8V, 2.5V and 1.5V power supplies to the outside; the LTM4633 chip is connected with a 12V power supply interface of the connector and provides 1.15V, 1.2V and 3.3V power supplies to the outside; the RT9018A chip is connected with the 5V power supply interface of the connector and provides 2.5V, 3.3V and 1.15V power supply to the outside.
5. The Loongson 2H-based autonomous controllable computer module according to claim 1, wherein the Loongson 2H processor further comprises a NAND controller, the NAND flash memory is connected with a pin of the NAND controller, and the capacity of the NAND flash memory is 1 GB.
6. The Loongson 2H-based autonomously controllable computer module as claimed in claim 2, wherein said USB signal provides 6 external interfaces of said USB 2.0.
7. The Loongson 2H-based autonomous controllable computer module as claimed in claim 2, wherein the SATA signal provides 2 paths of SATA2.0 hard disk interfaces for transmitting data to a hard disk to realize data storage.
8. The Loongson 2H-based autonomous controllable computer module of claim 2, wherein the PCIE signals provide 1 PCIE X4 interface outwards, and the PCIE X4 interface is used for configuring 4 PCIE X1 interfaces.
9. The Loongson 2H-based autonomous controllable computer module as claimed in claim 4, wherein the 1.15V and 1.1V power supplies of the LTM4633 chip to the Loongson 2H processor are combined into one power supply.
10. A computer motherboard comprising an autonomous controllable computer module based on loongson 2H as claimed in any one of claims 1 to 9.
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