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ispLEVER Classic Software

ispLEVER Classic is the design environment for Lattice CPLDs and mature programmable products. It can be used to take a Lattice device design completely through the design process, from concept to device JEDEC or Bitstream programming file output.

FAQ

ispLever Classic 2.1: Is ispLever Classic 2.1 supported on Windows 11?

ispLever Classic 2.1 is not officially supported for Windows 11. This was tested and a service pack was provided on Windows 10 to apply compatibility. There is no roadmap for Windows 11 support for the software, as most of the devices used for ispLever Classic are already mature and/or…

FAQ

ispLever Classic 2.1: Why is the "PULL" option of ispLever Classic not editable for designs using ispMACH 4000V/B/C/Z device?

When creating a design in ispLever Classic using ispMACH 4000V/B/C/Z devices, the "PULL" constraint option cannot be edited individually for each I/O and is greyed out.For the ispMACH 4000V/B/C/Z devices, the "PULL" constraint can only be edited on a global basis and cannot be set for individual…

FAQ

ispLever Classic 2.1: How to resolve the issue when the text editor in ispLever Classic appears in the taskbar but the window cannot be opened?

Workaround 1: Press and hold the Shift key, then right-click the stuck text editor icon in the taskbar then click Maximize Workaround 2: You can change the text editor to your own desired text editor as a workaround. To do this: 1. Open ispLever Classic then click Options > Environment 2. Under…

FAQ

ispLever Classic: Is ispLever classic supported on Linux or Mac OS X platforms?

Lattice ispLever classic is not supported in Linux or Mac OS X platforms. Please refer to the System Requirements section in the ispLever Classic 1.8 Installation Notice document for the list of operating systems supported by ispLever Classic.

FAQ

How to get license for Lattice ispLEVER Classic Software?

We have evaluated our costs for continuing to support our legacy devices on ispLEVER Classic. In this regard, we are implementing a change to the pricing of our software.Please see our Online Store or contact your nearest distributor, click here- Sales LocatorTo get a 60-day license extension,…

FAQ

ispLever Classic 2.1 and below: Why does the D Flip-Flop in the post-fit equation of ispLever Classic contain 2 D inputs (D.X1 & D.X2)?

Description: The ABEL engine can extract XOR (exclusive OR) gates wherever possible, it generally gives better Fmax for most designs, so it is the default setting. Compared to the AND-OR logic gate, the XOR logic gate reduces the product term, and then routing complexity/time decreases and Fmax…

FAQ

ispLEVER Classic / Installation: What to do if error pops out when starting ispLEVER Classic "Can't read the ini file."?

Description:At start up, ispLEVER looks for an initialization file that is normally located under the lsc_env file (which normally sits directly under the C: drive). If ispLEVER cannot find this file (e.g. C:\lsc_env\lsc_1_4.ini), then the user will get this error. This error may also occur due to…

FAQ

ispLEVER Classic v1.8: Does the software support Mixed Verilog/VHDL as described in the ispLEVER Classic Installation Guide?

Solution: Classic does not support a mixed language project. Note that when you create a project, you have to choose a project type. Mixed language is not one of these. ispLEVER and Diamond do support mixed language but not Classic.The workaround is to open the sources in Synplify Pro and create an…

FAQ

ispLEVER Classic v1.7: Where do I find the IPexpress in the software?

Solution:One can generate the IP using Module-IP Manager that comes along with the ispLEVER Classic 1.7 Installation. The Module-IP Manager can be invoked as follows.Select Windows > All Programs > Lattice ispLEVER Classic 1.7 > Module- IP Manager

FAQ

ispLEVER Classic: What is the meaning of the ispLEVER Classic warning "P38088: Balanced partitioning turned off"?

This warning indicates that the balanced partitioning strategy of the fitter is turned off in order to find a successful fit for the design. Balanced partitioning is a method to keep the CPLD utilization uniform across the device. Therefore, if the fitter successfully fits the design, the user can…

FAQ

ispLEVER Classic / Installation: How to run ispLEVER tools on Windows 7 32-bit versions?

Solution:ispLEVER is not supported to run on Windows 7 operating system. Based on our initial tests, we were able to run ispLEVER in the command line mode without any or minimal issues. ispLEVER is not fully compatible with Windows 7 when running in Graphical User Interface. If you are running on…

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ispLEVER Downloads

Download archived ispLEVER versions here. The software available on this page is not our most current tools. We recommend that customers use the latest software available on our website.

FAQ

ispLEVER Classic / Licensing: How to get rid of the License error thrown out by the Aldec Simulator?

Description:The Aldec license file is usually combined with the ispLEVER license and which will be set in the Environment Variable by setting the LM_LICENSE_FILE to the location of the license file. However, on certain occasions, the tool may still not be able to be invoked and in-turn will generate…

FAQ

ispLEVER Classic / Installation: Does the tool can be installed in 64-bit Windows 7 or 64-bit Windows Vista?

Solution:No, it does not. The ispLEVER is not supported for 64-bit Windows 7 or 64-bit Windows Vista. This FAQ is intended to help facilitate running ispLever on one of these two operating systems. ispLEVER is fully supported in 32-bit Windows XP and 32-bit Windows Vista. It is necessary to run one…

FAQ

ispLEVER Classic / Installation: What causes the "ERROR: Can not read design entry type from Context" ?

Solution:The ispLEVER error message: "ERROR: Can not read design entry type from Context", is usually due to a permissions error in Windows Vista. Please make sure that you have Administrator privileges when the software is installed. Also make sure that the Vista UAC (User Access Control) is turned…

FAQ

Diamond and ispLEVER Classic Schematic Editor: How can signals be prevented from being optimized away or pruned?

Lattice Diamond design software and ispLEVER Classic designtools extend their HDL attributes option in Schematic Editor.To preserve a signal, click on the signal and right-click onit. The object properties window will open up. Select your desired wire, andyou will observe several attributes…

FAQ

How can I fit Picopower Demo Source of ispMACH 4000ZE Pico Development Kit in ispLEVER Classic 1.6 ?

The source on the website was fitted in previous ispLEVER Classic version 1.4. Because of the changes in ispLEVER Classic, the source cannot be directly fitted in latest ispLEVER Classic 1.6. To fit the design in this software, you can adjust constraints as follows:In Project Navigator, select any…

Board

ispMACH 4000ZE Evaluation Board

No longer available - for reference only. For evaluation and prototyping with the ispMach4064ZE CPLD + On-board USB programming + LCD panel (2 x 7-segment),...

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Lattice Diamond Programmer and Deployment Tool

For programming all Lattice FPGA, CPLD, Mixed Signal devices (included with Lattice Diamond also)