Board Details

VCK190/VMK180 Board Evaluation and Management (BEAM) Tool User Guide (UG1573)

Document ID
UG1573
Release Date
2023-02-22
Revision
1.0 English
When accessing the ACAP Cockpit console, the tool internally connects to the evaluation board by means of JTAG and when finished, returns JTAG control. Board details can be observed by selecting the connected user name displayed on the top right corner of the screen. The ACAP Cockpit provides a notification about the board's Ref clock.
Important: By default, the Ref clock is set to 33.33 MHz as this is the default value used on the VCK190 and VMK180 boards. If the Ref clock on the board is set to any other value, you need to update this in the ACAP Cockpit.

The ACAP Cockpit reads memory locations using the mrd command. By default, accesses to reserved and invalid address ranges are blocked. In order to overwrite access protection it uses the -force option. With the force memory read option enabled (mrd -force <address>), accessing a memory location which is not part of the design programming results in a "DAP error" and JTAG is closed. You then must power cycle the board and design programming again. With the force memory read option disabled (mrd <address>), accessing a memory location which is not part of the design programming returns a "Memory read error" and you can continue using JTAG. The force memory read option is enabled by default.

The ACAP Cockpit provides a pop-up window displaying the board's Ref clock and a switch to configure the force memory read option. This is accessed by clicking on the connected user name displayed on the top right corner of the screen and selecting "Board Details". You can choose the read/write the registers with or without the -force option by toggling the "Force Memory Read" switch. Additional details are available using the XSDB mrd command.
Figure 1. Board Details Pop-up Window
When the force memory read option is enabled, the following command is executed on the XSDB:
config force-mem-accesses 1
This forces reading of the registers (equivalent to the mrd -force command on the XSDB).
Figure 2. Module Summary
When the force memory read option is disabled, the following command is executed on the XSDB:
config force-mem-accesses 0
This does not force reading of the registers (equivalent to the mrd command on the XSDB).