Xilinx ML403 - page 18

Using ChipScope with OPB IIC

XAPP979 (v1.0) February 26, 2007 www.xilinx.com 18

Using

ChipScope with

OPB IIC

Tofacilitate the use of ChipScope to analyze OPB IIC hardware, the iic.cdc ﬁle is included in

the ml403_ppc_opb_iic/chipscope directory. The iic.cdc is used to insert a

ChipScope ILA core into the opb_iic core. The following steps are used to insert a core and

analyze OPB IIC problems with ChipScope.

1. Invoke XPS.Run Hardware → Generate Netlist.

2. In the iic.cdc ﬁle, change the path <design_directory> name to the directory in which

the design ﬁles are installed. Three paths need to be changed.

3. Run Start →Programs →ChipScope Pro →ChipScope Inserter

4. From ChipScope Inserter,r un File →Open Projectii.cdc.Figure 22 shows the ChipScope

Inserter setup GUI.

Figure 22: ChipScope Inserter Setup

X979_22_012907

Contents

Main Summary Included Systems Required Hardware/Tools Reference System: OPB IIC Using the ML403 Evaluation Platform Introduction IIC Primer Page Reference System Specics Reference System Specics ML403 XC4VFX12 Address Map Tab le 3 provides a description of the OPB IIC control register. OPB IIC Registers Tab le 2 provides the register map for the OPB IIC core. Table 1: ML403 XC4VSX12 System Address Map Page Page Conguring the OPB IIC Core Microchip 24LC04 ML403 Board Information Page ML403 Board Information Figure 13: Expansion Header TotalPhase Aardvark Adapter Interfacing to the OPB IIC on the ML403 Board to the Aardvark Adapter Executing the Reference System using the Pre-Built Bitstream and the Compiled Software Applications Executing the Reference System from EDK Verifying the Reference Design with Xilinx Microprocessor Debugger Software Projects Projects interfacing to Microchip 24LC04 Projects interfacing to Aardvark Adapter Running the Applications Page Page Page Page Linux Kernel Page Page Simulation In most cases, after data is transmitted, the test waits for an interrupt from the OPB IIC. Internal signal names used in the OPB IIC core are provided in Tab le 6. Figure 28: OPB IIC Simulation Table 6: Internal Signals in OPB IIC Page Page Page Page XAPP979 (v1.0) February 26, 2007 www.xilinx.com 30 Figure 33: Test code with iic_AA as Master Page Figure 35 provides the test code for simulation with IIC_AA as master. Figure 35: Test Code for Simulation with iic_20 as Master