CN201307286Y

CN201307286Y - Single board

Info

Publication number: CN201307286Y
Application number: CNU200820175280XU
Authority: CN
Inventors: 代文俊
Original assignee: Fujian Star Net Communication Co Ltd
Current assignee: Fujian Star Net Communication Co Ltd
Priority date: 2008-11-17
Filing date: 2008-11-17
Publication date: 2009-09-09
Anticipated expiration: 2018-11-17

Abstract

The utility model discloses a single board which is used for reducing the complexity of a software part in a single board and increasing the velocity of a detecting module. The single board comprises an electrical level access terminal used for receiving an electrical level signal, a module interface used for receiving a module, and an element which comprises a pin and is used for being connected with the electrical level access corresponding to the type of the module through the pin.

Description

A kind of veneer

Technical field

The utility model relates to electronic technology field, particularly relates to veneer.

Background technology

Integrated circuit technique and technology are in develop rapidly.Present veneer comprises controller, is used for the module interface of link block, is used to connector that connects by other veneer etc.Wherein, between controller and the module interface, between controller and the connector, all be to connect by bus.

Prior art is carried out module to module and is detected, and realizes by software mode.The baud rate that different modules is corresponding different.Controller adopts the mode of poll baud rate to send characteristic commands with different baud rates, module when detecting with baud rate that self conforms to the controller echo reply.Referring to Figure 1A, the implementation procedure of controller poll baud rate and determination module type is as follows, and following flow process is that example describes with two kinds of baud rates:

Step 11: controller sends characteristic commands to module with first baud rate (baud rate is as 9600).

Step 12: controller starts timer, and zone bit is added 1, and the zone bit of this moment is 1.

Step 13: controller shows that then this module is the pairing module of first baud rate, process ends if receive the data that module is returned in default time range.

Step 14: controller is not if receive the data that module is returned in default time range, then whether controller judgement symbol position is 2, if, process ends then, representation module detects makes mistakes, otherwise continues step 15.

Step 15: controller sends characteristic commands to module with second baud rate (baud rate is as 115200).

Step 16: controller restarts timer, and zone bit is added 1, and the zone bit of this moment is 2.

Step 17: controller shows that then this module is the pairing module of second baud rate, process ends if receive the data that module is returned in default time range.

Step 18: controller is not if receive the data that module is returned in default time range, then whether controller judgement symbol position is 2, if, process ends then, representation module detects makes mistakes, otherwise following a kind of baud rate sends characteristic commands, continues step 15.

By above-mentioned flow process as can be known, the module testing process needs processes such as a comparatively complicated poll, judgement, timing, detection zone bit, not only take more module detection time, also need more module trace routine size of code, promptly take more controller resource and storage space.Especially under the situation that module constantly develops, module detection time and module trace routine size of code may be along with the kind growths at double of module.

The utility model content

The utility model embodiment provides a kind of veneer, the speed that is used for reducing the complexity of veneer software section and improves detection module.

A kind of veneer comprises:

The level incoming end is used for the incoming level signal;

Module interface is used for link block;

The device that comprises pin is used for connecting the level incoming end corresponding with type of module by pin.

The utility model embodiment is connected pin with the level incoming end, by pin to controller transmission level signal, the module that a kind of level signal is corresponding a type, controller comes the type of determination module by the level signal of receiving.No longer need software program through processes such as overpolling, judgement, timing, detection zone bits, saved the storage space of storing software program, and directly pass through the type of the condition judgment module of level, make that the speed of determination module type is faster.

Description of drawings

Figure 1A is the process flow diagram of module testing process in the prior art;

Figure 1B is the primary structure figure of veneer among the utility model embodiment;

Fig. 2 is the structural drawing of veneer when device 102 is for controller among the utility model embodiment;

Fig. 3 is the structural drawing of veneer when device 102 is for controller among the utility model embodiment;

Fig. 4 is the structural drawing of veneer during a plurality of pin among the utility model embodiment;

Fig. 5 is for comprising the structural drawing of the veneer of two-way switch among the utility model embodiment.

Embodiment

The utility model embodiment adopts hardware mode to carry out the initialization procedure of module, to replace software program, determines corresponding module type by different level signals.

Referring to Figure 1B, the veneer in the present embodiment comprises module interface 101, device 102 and level incoming end 103.

Level incoming end 103 is used for the incoming level signal.Level incoming end 103 comprises high level incoming end and/or low level incoming end etc. in the present embodiment.The level incoming end 103 that different module types is corresponding different.

Module interface 101 is used for link block, and this module can be CDMA module or GPRS module etc.

Device 102 comprises pin 104, is used for connecting the level incoming end 103 corresponding with type of module by pin 104.

Veneer in the present embodiment can be specially subcard, and then veneer also comprises the connector that is used to connect backboard.

Device 102 in the present embodiment can be controller, also can be a kind of chip that comprises pin, and then two kinds of structures of the inner existence of veneer are introduced respectively these two kinds of structures below.

Referring to Fig. 2, device 102 is under the situation of controller, and veneer comprises controller 201, module interface 101 and level incoming end 103.

Level incoming end 103 is used for the incoming level signal.Module interface 101 is used for link block.Controller 201 is electrically connected with level incoming end 103 by self-contained pin 104, and pin 104 can be electrically connected with level incoming end 103 by resistance 202, with holding circuit.Controller 201 can be connected with module interface 101 by bus mode, with the transmission data.If veneer also comprises the connector that is used to connect backboard, then controller 201 also can be connected with connector by bus mode.

The process (this testing process can occur in during the initialization veneer, also can occur in after the initialization veneer) of controller 201 beginning detection modules is according to the type of the level signal determination module of receiving by pin 104.Controller 201 can detect the level signal that pin 104 is received in the process of beginning detection module; Perhaps before the beginning detection module, detect level signal and the record that pin 104 is received, in the process of beginning detection module, write down to determine the level signal that pin 104 is received by inquiring about this.For example, controller 201 is received the high level signal of pin 104 transmission, and then determination module belongs to first module type, if controller 201 is received the low level signal of pin 104 transmission, then determination module belongs to second module type.High level signal can be provided by power supply VCC, and low level signal can be provided by ground GND.Wherein, controller 201 is the process of start detection module voluntarily, and perhaps controller 201 comes the process of start detection module according to the order of the transmission of the master controller on the backboard.

Referring to Fig. 3, device 102 is under the situation of chip, and veneer comprises chip 301, controller 201, module interface 101 and level incoming end 103.

Level incoming end 103 is used for the incoming level signal.Module interface 101 is used for link block.Chip 301 is electrically connected with level incoming end 103 by self-contained pin 104, and pin 104 can be electrically connected with level incoming end 103 by resistance 202, with holding circuit.Chip 301 can be connected with controller 201 by bus mode.Controller 201 can be connected with module interface 101 by bus mode, with the transmission data.If veneer also comprises the connector that is used to connect backboard, then controller 201 also can be connected with connector by bus mode.

Chip 301 comprises special IC (Application Specific Integrated Circuit, ASIC), CPLD (Complex Programmable Logic Device, CPLD), field programmable gate array (Field-Programmable Gate Array, FPGA) etc.

The level signal that chip 301 is received pin 104 is transferred to controller 201, and this process can occur in the process of detection module, also can occur in before the detection module.Chip 301 can be initiatively to controller 201 transmission level signals, also can be according to the indication of controller 201 to controller 201 transmission level signals.Controller 201 is in the process of detection module, according to the type of the level signal determination module of pin 104 transmission.

In Fig. 2 and embodiment shown in Figure 3,104 of pins are electrically connected with a level incoming end 103, when if polytype module is arranged, the corresponding a kind of level signal of module type, then a module type needs corresponding pin 104, referring to shown in Figure 4, controller 201 needs to determine the level signal of each pin 104 transmission.For example, two pins 104 are arranged, then high-low level has four kinds of array modes, and promptly 00,01,10 and 11, the corresponding a kind of module type of a kind of array mode.Similarly, three pins 104 have eight kinds of array modes, can corresponding eight kinds of module types.Present veneer has only a module interface 101 usually, it is the type of module difference of insert module interface 101, if the module that the insertion that veneer is fixed is a type then relatively is fit to adopt structure shown in Figure 4, this technical scheme relatively is fit to production firm.

For module interface 101 in the past inserts polytype module flexibly, then a pin 104 needs to connect a plurality of level incoming ends 103.Referring to shown in Figure 5, pin 104 can connect in a plurality of level incoming ends 103 by multi-direction switch 501 (as single-pole double-throw switch (SPDT) etc.), selects by toggle switch.Adopt technical scheme shown in Figure 5, a module interface 101 can insert polytype module, can plug each generic module flexibly, and this technical scheme relatively is fit to domestic consumer.

The utility model embodiment is connected pin with the level incoming end, by pin to controller transmission level signal, the module that a kind of level signal is corresponding a type, controller comes the type of determination module by the level signal of receiving.No longer need software program through processes such as overpolling, judgement, timing, detection zone bits, saved the storage space of storing software program, and directly pass through the type of the condition judgment module of level, make that the speed of determination module type is faster.And, the utility model embodiment also provides in module to be had under polytype situation, the technical scheme of determination module type, and by adopting two-way switch, make pin connect a plurality of level incoming ends flexibly, so that under the situation that does not change single plate structure, determine different module types.

Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims

1, a kind of veneer is characterized in that, comprising:

The level incoming end is used for the incoming level signal;

Module interface is used for link block;

2, veneer as claimed in claim 1 is characterized in that, device is a controller; Perhaps

Device is a chip, is connected with controller, and the signal that is used for the level incoming end is transferred to pin passes to controller.

3, veneer as claimed in claim 1 is characterized in that, the level incoming end comprises high level incoming end and/or low level incoming end.

4, veneer as claimed in claim 3 is characterized in that, the high level incoming end is a power access end; The low level incoming end is an earth terminal.

5, veneer as claimed in claim 1 is characterized in that, a pin connects a level incoming end; Perhaps

A pin connects two level incoming ends by multi-direction switch.