Method for designing a circuit for programmable microcontrollers

• US 7,010,773 B1
• Filed: 11/19/2001
• Issued: 03/07/2006
• Est. Priority Date: 11/19/2001
• Status: Expired due to Term

• Current Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Original Assignee: Cypress Semiconductor Corporation (Infineon Technologies AG)
• Inventors: Pleis, Matthew A., Anderson, Douglas H., Bartz, Manfred, Zhaksilikov, Marat, Roe, Steve, Ogami, Kenneth Y.
• Primary Examiner(s): Smith, Matthew
• Assistant Examiner(s): Dimyan, Magid Y.
• Application Number:
  US09/989,571
• Time in Patent Office: 1,569 Days
• Field of Search: 716 1- 5, 716 7- 14, 716/16, 716/17
• US Class Current: 716/121
• CPC Class Codes: G06F 30/327 Logic synthesis; Behaviour synthesis, e.g. mapping logic, HDL to netlist, high-level language to RTL or netlist
• CPC Class Codes: G06F 30/34 for reconfigurable circuits, e.g. field programmable gate arrays [FPGA] or programmable logic devices [PLD]
• CPC Class Codes: G06F 30/347 Physical level, e.g. placement or routing
• CPC Class Codes: G06F 30/36 Circuit design at the analogue level

Abstract

A method to program a microcontroller using a software program. First a user selects a module from a catalog of available modules. The module may be for implementing an amplifier, timer, pulse width modulator, etc. This causes information related to the selected module to be displayed. For example, a schematic and data sheet for the selected module may be displayed. Next, the user requests a position and places the selected module in a graphical user interface, which represents the resources available to implement the available modules. For example, the resources may be programmable system blocks. Additional user modules may then be selected and placed. The user then configures the circuit by selecting circuit parameters for the user modules (e.g., amplifier gain), pin configurations, and interconnections between programmable system blocks. The user may then edit source code used to cause the user modules to perform their functions.

Claims

1. A method of designing a circuit for a programmable device, said method comprising:

a) a user selecting a first module of a plurality of modules;

b) said user placing said first module in a graphical user interface, wherein said graphical user interface comprises a plurality of resource images representing a layout of resources in said programmable device in which to implement said modules, and wherein said placement is an allowable position overlaying at least one of said resource images and is based on characteristics of said first module and characteristics of said layout of resources;

c) said user repeating a) and b) to place multiple modules overlaying additional resource images in said graphical user interface, wherein said circuit comprises said placed modules; and

d) said user selecting parameters for at least one of said placed modules.

2. The method of claim 1, further comprising:

e) selecting a new position for said first module in said graphical user interface by causing said first module to be moved from a first resource image in said graphical user interface to a second resource image in said graphical user interface.

3. The method of claim 1, further comprising:

e) selecting pin configurations for said placed modules by;

e1) causing a window to be displayed by selecting a region of a graphical user interface representing a target device in which to implement said circuit, said window providing selections for configuring a pin; and

e2) selecting a pin configuration provided in said window, wherein said pin is configured; and

e3) repeating e1) and e2) for additional pins.

4. The method of claim 1, further comprising:

e) configuring the interconnectivity between resource images in said graphical user interface, wherein interconnections are made between said placed modules.

5. The method of claim 1, further comprising:

e) creating a source code program using an application program interface (API), wherein said API is for calling a routine to cause said first module to perform a predetermined function.

6. A method of designing a circuit for a programmable device, said method comprising:

selecting a module from a plurality of predefined modules to be used in said circuit;

requesting a valid placement for said module in a graphical user interface comprising resource images representing programmable resources in said programmable device, said valid placement specifying at least one of said resource images; and

selecting said valid placement to place said module in said graphical user interface.

7. A method as recited in claim 6, wherein said resource images comprise images corresponding to programmable analog blocks in said programmable device.

8. A method as recited in claim 6, wherein said resource images comprise images corresponding to programmable digital blocks in said programmable device.

9. The method of claim 6, further comprising:

requesting another valid position for said module in said graphical user interface.

10. The method of claim 6, further comprising:

selecting additional modules to be used in said circuit; and

requesting valid placements for said additional modules in said graphical user interface, said valid placements for said additional modules specifying at least one unique resource image for each additional module.

11. The method of claim 6, further comprising:

configuring interconnectivity between resource images in said graphical user interface to configure interconnectivity of said programmable resources.

12. The method of claim 6, further comprising:

selecting pin configurations for said module by;

causing a window to be displayed, said window providing selections for configuring an input/output pin; and

selecting a configuration provided in said window, wherein said input/output pin is configured.

13. The method of claim 6, further comprising:

selecting a parameter for said module by;

causing a window to be displayed for said module, said window providing selections for setting said parameters; and

selecting a parameter from said window, wherein said parameter is selected for said module.

14. The method of claim 6, further comprising:

creating a source code program using an application program interface (API), wherein said API is for calling a routine to cause said module to perform a predetermined function.

15. A method of using a graphical user interface to facilitate implementing a design in a programmable device, said method comprising:

selecting a module from a plurality of predefined modules for placement in said graphical user interface comprising resource images representing programmable resources of said programmable device;

requesting valid placements for said module in said graphical user interface, each of said valid placements specifying at least one of said resource images;

receiving respective indications of valid placements for said module in said graphical user interface; and

selecting one of said valid placements to place said module in said graphical user interface.

16. A method as recited in claim 15 wherein said programmable resources comprise programmable analog blocks.

17. A method as recited in claim 15 wherein said programmable resources comprise programmable digital blocks.

18. A method as recited in claim 15 further comprising configuring parameters for said module using said graphical user interface.

19. A method as recited in claim 18 wherein said selecting one of said valid placements causes said parameters to be mapped to a register address of said programmable device.

20. A method as recited in claim 15 further comprising configuring pin inputs/outputs for said design using said graphical user interface.

21. A method as recited in claim 15 further comprising configuring interconnectivity of said programmable resources using said graphical user interface.