CN101135999A - Method for realizing communications between double processors serial controller terminal port and serial peripheral interface - Google Patents
Method for realizing communications between double processors serial controller terminal port and serial peripheral interface Download PDFInfo
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- CN101135999A CN101135999A CNA2006101069438A CN200610106943A CN101135999A CN 101135999 A CN101135999 A CN 101135999A CN A2006101069438 A CNA2006101069438 A CN A2006101069438A CN 200610106943 A CN200610106943 A CN 200610106943A CN 101135999 A CN101135999 A CN 101135999A
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- microprocessor
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Abstract
The invention comprises a micro processor. The method thereof comprises: using the micro processor to read out media data from file or network; using the serial controller port SCP of the micro processor to connect to the SPI interface of the digital multimedia signal processor; sending the media data to the digital multimedia processor to make decode and display.
Description
Technical field
The present invention relates to a kind of stream media technology, especially relate to a kind of dual processor serialization controller port implementation method of communicating by letter with Serial Peripheral Interface (SPI).
Background technology
At present, existing stream media technology is to adopt microprocessor and digital signal processor to adopt the connected mode of coprocessor, and this mode connects complexity, and a variety of microprocessor is not supported this mode.Also have the mode that adopts the twoport internal memory to realize communication between microprocessor and the digital signal processor in addition, this mode not only connects complexity, and has increased hardware cost.
Summary of the invention
Purpose of the present invention just is to provide a kind of dual processor serialization controller port simple, with low cost implementation method of communicating by letter with Serial Peripheral Interface (SPI) that connects.
Purpose of the present invention can realize by following measure:
The inventive method is as follows, read media data with microprocessor from file or network, utilize the serialization controller port SCP and the multimedia digital signal processor SPI interface of microprocessor to achieve a butt joint again, deliver to the multimedia digital processor then and decode and play.
Adopting the multimedia digital signal processor model in the method for the present invention is BF533 or TMS320DM642., and the microprocessor model is STB02500.Certainly, also can adopt other suitable model.
The present invention is owing to adopt said method, makes it to have to connect advantages such as simple, with low cost, and supported that by many microprocessors use is extensive, and is stable and reliable for performance.
Description of drawings
Accompanying drawing is the realization schematic diagram of method among the present invention;
Embodiment
The present invention does with detailed description below in conjunction with drawings and Examples:
Embodiment 1
As shown in the figure, the present invention includes microprocessor, its method is as follows, read media data with microprocessor from file or network, utilize the serialization controller port SCP and the multimedia digital signal processor SPI interface of microprocessor to achieve a butt joint again, deliver to the multimedia digital processor then and decode and play.
Embodiment 2
As shown in the figure, the present invention includes microprocessor, its method is as follows, read media data with microprocessor from file or network, utilize the serialization controller port SCP and the multimedia digital signal processor SPI interface of microprocessor to achieve a butt joint again, deliver to the multimedia digital processor then and decode and play.Adopting the multimedia digital signal processor model in this method is BF533 or TMS320DM642., and the microprocessor model is STB02500, certainly, also can adopt other suitable model.
Claims (2)
1. dual processor serialization controller port implementation method of communicating by letter with Serial Peripheral Interface (SPI), it comprises microprocessor, it is characterized in that: its method is as follows, read media data with microprocessor from file or network, utilize the serialization controller port SCP and the multimedia digital signal processor SPI interface of microprocessor to achieve a butt joint again, deliver to the multimedia digital processor then and decode and play.
2. the dual processor serialization controller port according to claim 1 implementation method of communicating by letter with Serial Peripheral Interface (SPI), it is characterized in that: adopting the multimedia digital signal processor model in the described method is BF533 or TMS320DM642., and the microprocessor model is STB02500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101069438A CN101135999A (en) | 2006-08-29 | 2006-08-29 | Method for realizing communications between double processors serial controller terminal port and serial peripheral interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101069438A CN101135999A (en) | 2006-08-29 | 2006-08-29 | Method for realizing communications between double processors serial controller terminal port and serial peripheral interface |
Publications (1)
| Publication Number | Publication Date |
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| CN101135999A true CN101135999A (en) | 2008-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101069438A Pending CN101135999A (en) | 2006-08-29 | 2006-08-29 | Method for realizing communications between double processors serial controller terminal port and serial peripheral interface |
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| CN (1) | CN101135999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788973B (en) * | 2010-01-12 | 2012-03-21 | 深圳市同洲电子股份有限公司 | Method for communication between dual processors |
-
2006
- 2006-08-29 CN CNA2006101069438A patent/CN101135999A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788973B (en) * | 2010-01-12 | 2012-03-21 | 深圳市同洲电子股份有限公司 | Method for communication between dual processors |
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Open date: 20080305 |