SPRUIR8B april   2020  – july 2023

 

  1.   1
  2.   CLB Tool
  3.   Trademarks
  4. 1Introduction
    1. 1.1 CLB Tool Outline
    2. 1.2 Overview of the CLB Configuration Process
  5. 2Getting Started
    1. 2.1 CLB Related Collateral
    2. 2.2 Introduction
    3. 2.3 Installation
      1. 2.3.1 Installation to Compile SystemC
      2. 2.3.2 Install the Simulation Viewer
  6. 3Using the CLB Tool
    1. 3.1 Import the Empty CLB Project
    2. 3.2 Updating Variable Paths
    3. 3.3 Configuring a CLB Tile
    4. 3.4 Creating the CLB Diagram
    5. 3.5 Using the Simulator
      1. 3.5.1 The Statics Panel
      2. 3.5.2 Creating the Input Stimulus
      3. 3.5.3 Running the Simulation
      4. 3.5.4 Trace Signal Descriptions
  7. 4Examples
    1. 4.1 Foundational Examples
      1. 4.1.1  CLB Empty Project
      2. 4.1.2  Example 3 – PWM Generation
      3. 4.1.3  Example 7 – State Machine
      4. 4.1.4  Example 13 – PUSH-PULL Interface
      5. 4.1.5  Example 14 – Multi-Tile
      6. 4.1.6  Example 15 – Tile to Tile Delay
      7. 4.1.7  Example 16 - Glue Logic
      8. 4.1.8  Exampe 18 - AOC
      9. 4.1.9  Example 19 - AOC Release Control
      10. 4.1.10 Example 20 - CLB XBARs
    2. 4.2 Getting Started Examples
      1. 4.2.1  Example 1 – Combinatorial Logic
      2. 4.2.2  Example 2 – GPIO Input Filter
      3. 4.2.3  Example 4 – PWM Protection
      4. 4.2.4  Example 5 – Event Window
      5. 4.2.5  Example 6 – Signal Generation and Check
      6. 4.2.6  Example 8 – External AND Gate
      7. 4.2.7  Example 9 – Timer
      8. 4.2.8  Example 10 – Timer With Two States
      9. 4.2.9  Example 11 – Interrupt Tag
      10. 4.2.10 Example 12 – Output Intersect
      11. 4.2.11 Example 17 – One-Shot PWM Generation
      12. 4.2.12 Example 21 - Clock Prescaler and NMI
      13. 4.2.13 Example 22 - Serializer
      14. 4.2.14 Example 23 - LFSR
      15. 4.2.15 Example 24 - Lock Output Mask
      16. 4.2.16 Example 25 - Input Pipeline Mode
      17. 4.2.17 Example 26 - Clocking Pipeline Mode
    3. 4.3 Expert Examples
      1. 4.3.1 Example 27 - SPI Data Export
      2. 4.3.2 Example 28 - SPI Data Export DMA
      3. 4.3.3 Example 29 - Timestamp
      4. 4.3.4 Example 30 - Cyclic Redundancy Check
      5. 4.3.5 CLB TDM Serial Port
      6. 4.3.6 CLB LED Driver
      7. 4.3.7 FPGA/CPLD to C2000 Examples
  8. 5Enabling CLB Tool in Existing DriverLib Projects
  9. 6Frequently Asked Questions (FAQs)
  10. 7Revision History

4.3.6 CLB LED Driver

FILE: clb_ex32_led_driver.c

For the detailed description of this example, please refer to: How to Implement Custom Serial Interfaces Using the Configurable Logic Block (CLB) Application Note (SPRAD62).

In this example two CLB tiles are used to communicate with an LP5891-Q1 LED driver. One CCSI bus is used to transmit data using the CCSI bus protocol, while a second tile is used to receive data from the CCSI bus. The C28x CPU communicates with the CLB logic through a hardware-abstraction layer (HAL). This example also utilizes a PWM to generate the required CCSI clocks, and a timer to generate periodic sync events to the LED driver.

This example is only available on C2000 MCU devices with CLB types 2 and up.

External Connections
CCSI Input Signal GPIO pin LED Driver CLB_SIN_1 GPIO17 SOUT

CCSI Output Signal GPIO pin LED Driver CLB_SOUT_1 GPIO08 SIN CLB_SCLK_1 GPIO01 SCLK