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As shown in 5-39?. boundary scan Interface system control Interface Local Flash storage Target FPGA Interface ACE MPM System XCV50E Configuration controller AMD Flash storage PROM From string

or SelectMAP Figure System ACE MPM 5-39 interface circuit schematic diagram ACE MPM System is the first Xilinx Inc to support the bit stream compression configuration program to support a variety of configuration mode, while up to 8 FPGA chain from the string configuration mode and up to 4 Select MAP FPGA configuration mode, the maximum configuration rate of 152Mbps, while the most

To reduce the circuit board space and connection to a large extent. Typical ACE MPM System configuration circuit as shown in figure 5-40. In short, ACE System Technology It simplifies the configuration of large FPGA system, so that developers will focus on improving the performance of the system and shorten the development time. Sixty-seven

FPGA development Raiders - innovative design engineers collection on the basics Figure System ACE MPM 5-40 configuration circuit schematic 5.6 debugging experience in large scale design In the large-scale design of debugging should be in accordance with the design philosophy in the opposite order, from the bottom of the test, mainly rely on Pro ChipScope tools. Below This paper mainly introduces the methods of using Pro FPGA and Editor ChipScope components. ChipScope Pro 5.6.1 component application examples In the Xilinx software design tools, ISE tools and all program integrated Xilinx Inc. Pro ChipScope is no exception, in the ISE As a class of source files, and HDL source files, Core IP as well as the status of embedded systems is the same. This section is in Spartan3E-D Xilinx Development board to achieve a counter module, based on the module in detail on how to ChipScope in the new ISE application and observation, analysis of data Detailed operation. Example 5.6.1: in ISE to achieve a 8 bit counter, using ChipScope analysis of its logic output. (1) the new user project, add the mycounter.v source file, the contents of which are listed as follows: Mycounter module (CLK, reset, dout); CLK input; Reset input; [7:0] dout output; [7:0] dout reg; Always @ (CLK posedge) begin If (reset = 0)

Dout < = 0; Sixty-eight

FPGA development Raiders - innovative design engineers collection on the basics Else Dout < = dout + 1; End Endmodule And then according to the circuit connection, add the corresponding pin constraint. (2) comprehensive project, and then in the ISE project management area, right click, select "New Source Add" command, in the pop-up dialog box Select the "Definition and Connection File ChipScope" type, and enter the name of the ChipScope design in the "Name File" column Mychipscope, as shown in figure 5-41. Figure 5-41 add ChipScope design schematic Figure 5-42 test module selection interface Click "Next" button, enter the analysis file selection interface, here will be the folder where all the HDL design, schematic design are listed out To (including the top-level module and all the underlying module), for the user to select, click the mouse can be selected, this case choose mycounter, as shown in figure 5-42. Click "Next" button to enter the summary page, click "Finish" button to complete the add. (3) double click the sub module mychipscope.cdc under the project area mycounter.v, can automatically open the Pro Core Insterser Chipscope software, Add the trigger unit and the trigger bit. The trigger type is Basic, width is 8 bits; setting the sampling depth of 4096, each step as shown in figure 5-43. Sixty-nine

FPGA development Raiders - innovative design engineers collection on the basics To map 5-46 is shown. Figure 5-43 debug configuration interface diagram ICON 5-44 core configuration interface Figure 5-45 trigger signal configuration interface diagram 5-46 acquisition depth configuration interface (4) click "Next" to enter the network table connected to display the page, as shown in Fig. 5-47 is shown. Where the user defines the trigger and the clock signal lines are not connected Then, the words "UNIT", "CLOCKPORT", "" and "TRIGGERPORTS" are displayed in red in the picture. Turn black. Figure 5-46 network table connection prompt interface Seventy

FPGA development Raiders - innovative design engineers collection on the basics Click on the "Connection Modify" button in figure 5-47 to enter the connection page, the clock and data connection as shown in figure 5-48, figure 5-49 Show. It should be noted that Pro FPGA can only analyze the internal signal of ChipScope design, and therefore can not be directly connected to the input signal of the network table, the All of the input signal network table


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