PCI Example. User Guide. 02/2014 Capital Microelectronics, Inc. China

Transcription

1 PCI Example User Guide 02/2014 Capital Microelectronics, Inc. China

2 Contents Contents Introduction PCI Target IP Core Overview PCI Target IP Core Diagram Overview PCI Device PCI driver and application Parameter of PCI Target IP Core PCI Target IP Generation Summary Revision History

3 1 Introduction This document mainly describes the example user guide of PCI Target IP core. This example is to write data to the RAMs, Which are connected with the local interface of PCI Target IP and read it back, then check it. This example runs in the Windows XP with WinDriver10.10 environment. The example supports the following features: Fully compliant with PCI v2.2 specification 32bit data and address buses Up to 6 Targets channels Support 32 Interrupt Requests Device family support: CME-M5, CME-M7 3

4 2 PCI Target IP Core Overview 2.1 PCI Target IP Core Diagram Overview PCI Device PCI Target IP Configuration register BAR0 Local RAM0 PC With Windriver PCI Bus PCI Interface BAR1 BAR2 Local RAM1 Local RAM2 BAR3 Local RAM3 BAR4 Local RAM4 BAR5 Local RAM5 Figure 2-1 PCI Target IP Core diagram The figure 2-1 illustrates the diagram of PCI example design with the PCI Target IP Core. The PCI device contains the PCI Target IP and the local RAM, which are implemented in the M5 or M7. The PCI device driver and test application used to test the PCI device are designed by the WinDriver and support the Windows XP and Windows PCI Device The PCI device contains the PCI Target IP Core and the local RAMs. The PCI Target IP Core is responsible to communicate PC by PCI Bus and implements the function of PCI protocol. The local RAM receive the data form the PC, and keep it. 4

5 Configuration register BAR0 Local RAM0 BAR1 Local RAM1 PCI Interface BAR2 Local RAM2 BAR3 Local RAM3 BAR4 Local RAM4 BAR5 Local RAM5 Figure 2-2 PCI Device 1 PCI Interface This PCI Interface is a part of PCI Target IP Core, It is used to connect the PCI Bus of PC and deal with the PCI protocol. 2 BAR0-BAR5 Bar0 - Bar5 are optional, the user can implement any bar of bar0 to bar5, it deals with the data transfer between the local and computer. 3 Local RAMs This Local RAMs correspond the Bar0 - Bar5, they receive and keep the data from the computer PCI driver and application This PCI driver design is based on the WinDriver, the application is used to write data to the PCI device, and read data from the PCI device, then check the write data and the read data. 2.2 Parameter of PCI Target IP Core BAR0_EXSIT: PCI Bar0 exists. BAR1_EXSIT: PCI Bar1 exists. BAR2_EXSIT: PCI Bar2 exists. BAR3_EXSIT: PCI Bar3 exists. BAR4_EXSIT: PCI Bar4 exists. BAR5_EXSIT: PCI Bar5 exists. 5

6 BAR0_TYPE: 0: IO; 1: Memory BAR1_TYPE: 0: IO; 1:Memory BAR2_TYPE: 0:IO; 1:Memory BAR3_TYPE: 0:IO;1:Memory BAR4_TYPE: 0:IO;1:Memory BAR5_TYPE 0:IO;1:Memory BAR0_SIZE: Size of BAR0, the value is the power of 2. BAR1_SIZE: Size of BAR1, the value is the power of 2. BAR2_SIZE; Size of BAR2, the value is the power of 2. BAR3_SIZE; Size of BAR3, the value is the power of 2. BAR4_SIZE; Size of BAR4, the value is the power of 2. BAR5_SIZE Size of BAR5, the value is the power of 2. VENDOR_ID Manufacturer identifier of the device. DEVICE_ID Identifier of device. REVISION_ID Revision identifier of device. SUB_VENDOR_ID Sub Manufacturer identifier of the device. SUB_DEVICE_ID Sub Identifier of device. BASE_CLASS Function type of device. SUB_CLASS Function type of device. INTERFACE Register-Level programming interface. MAX_LATENCY The value of Max latency. MIN_GRANT The time of burst transfer. 6

7 3 PCI Target IP Generation Step1: Open the Wizard Manager and choose the PCI. Step2: Define the name of PCI Target IP. Figure 3-1 PCI Target IP Generate Step1 Step3: Configuration Information Setting Figure 3-2 PCI Target IP Generate Step2 7

8 Step4: Address and Type Setting. Figure 3-3 PCI Target IP Generate Step3 Step5: Clock select Figure 3-4 PCI Target IP Generate Step4 8

9 Figure 3-5 PCI Target IP Generate Step5 9

10 4 Summary This design provides an example usage of PCI Target IP. Users can take the RTL code as reference to build your own design. The PCI Target IP parameters can be changed through IP wizard or directly can be changed by changing the parameter setting in RTL code. 10

11 5 Revision History Revision Date Comments Initial release 11