[FAQ] Configurable Logic Block (CLB) - How do I get started?

Lori Heustess

Guru* 89875 points

Other Parts Discussed in Thread: C2000WARE

Question: How do I get started using the C2000 Configurable Logic Block?

+1 Lori Heustess over 3 years ago

C2000 Academy: https://dev.ti.com/tirex/explore/node?node=AOpze8ebskysmgASY3VKSA__jEBbtmC__LATEST
- Module 13 is the CLB content.
CLB for C2000 Training (videos) https://training.ti.com/clb-training-c2000-mcus?context=1137766-1138740
- 3 Parts - Introduction, CLB Architecture, CLB programming tool

Software examples in C2000Ware along with the CLB Tool User’s Guide
- CLB Tool User’s guide: http://www.ti.com/lit/pdf/SPRUIR8
- Note: the numbering of the examples is confusing. The guide mentions this but it is easy to miss.
  - Basic examples are 7 – 15. Start with these.
  - More involved examples are 1-6.
- These C2000Ware examples cover specific concepts to help you understand integrating the CLB into your application:
  - Example 7 – Has a companion application note - Designing With the C2000 Configurable Logic Block http://www.ti.com/lit/pdf/SPRACL3 .
  - Example 8 – routing to and from the CLB and GPIOs
  - Example 12 – Shows how the CLB can override a peripheral output (in this case PWM) with another functionality
  - Example 13 – Shows the push/pull FIFO buffer for the HLC. This is how the C28x and HLC can share information.
  - Example 1 – Shows how PWM signals can be routed through the CLB for modification
How to Migrate Custom Logic From an FPGA/CPLD to C2000 Microcontrollers http://www.ti.com/lit/spraco2 Even when not moving from FPGA there is some very good content here. It discusses some of the SW examples in detail. I highly recommend reading through this even if no FPGA porting is involved.
In the PTO library – The Abs2Qep example – The CLB design is documented in detail so it is good example to look at. It includes the K-maps for the logic. https://www.ti.com/lit/sprac77

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