Quick Start Guide for CCL - Basic

In this use case, the LUT0 and LUT1 input source is configured as I/O pin.

The LUT0 and LUT1 pair is connected to internal sequential logic, which is configured as D flip flop mode.

Setup

Prerequisites

There are no special setup requirements for this use-case.

Code

Copy-paste the following setup code to your user application:

void configure_ccl(void)
{
    struct ccl_config conf;

    ccl_get_config_defaults(&conf);

    ccl_init(&conf);
}

void configure_ccl_lut0(void)
{
    struct ccl_lut_config conf;

    ccl_lut_get_config_defaults(&conf);

    conf.truth_table_value = 0x02;
    conf.input0_src_sel = CCL_LUT_INPUT_SRC_IO;
    conf.input1_src_sel = CCL_LUT_INPUT_SRC_IO;
    conf.input2_src_sel = CCL_LUT_INPUT_SRC_IO;
    conf.filter_sel = CCL_LUTCTRL_FILTSEL_FILTER;

    struct system_pinmux_config lut0_input_pin0_conf, lut0_input_pin1_conf, lut0_input_pin2_conf;
    system_pinmux_get_config_defaults(&lut0_input_pin0_conf);
    system_pinmux_get_config_defaults(&lut0_input_pin1_conf);
    system_pinmux_get_config_defaults(&lut0_input_pin2_conf);
    lut0_input_pin0_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
    lut0_input_pin0_conf.mux_position = CCL_LUT0_IN0_MUX;
    lut0_input_pin1_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
    lut0_input_pin1_conf.mux_position = CCL_LUT0_IN1_MUX;
    lut0_input_pin2_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
    lut0_input_pin2_conf.mux_position = CCL_LUT0_IN2_MUX;
    system_pinmux_pin_set_config(CCL_LUT0_IN0_PIN, &lut0_input_pin0_conf);
    system_pinmux_pin_set_config(CCL_LUT0_IN1_PIN, &lut0_input_pin1_conf);
    system_pinmux_pin_set_config(CCL_LUT0_IN2_PIN, &lut0_input_pin2_conf);
    struct system_pinmux_config lut0_out_pin_conf;
    system_pinmux_get_config_defaults(&lut0_out_pin_conf);
    lut0_out_pin_conf.direction    = SYSTEM_PINMUX_PIN_DIR_OUTPUT;
    lut0_out_pin_conf.mux_position = CCL_LUT0_OUT_MUX;
    system_pinmux_pin_set_config(CCL_LUT0_OUT_PIN, &lut0_out_pin_conf);

    ccl_lut_set_config(CCL_LUT_0, &conf);
}

void configure_ccl_lut1(void)
{
    struct ccl_lut_config conf;

    ccl_lut_get_config_defaults(&conf);

    conf.truth_table_value = 0x02;
    conf.input0_src_sel = CCL_LUT_INPUT_SRC_IO;
    conf.input1_src_sel = CCL_LUT_INPUT_SRC_IO;
    conf.input2_src_sel = CCL_LUT_INPUT_SRC_IO;
    conf.filter_sel = CCL_LUTCTRL_FILTSEL_FILTER;

    struct system_pinmux_config lut1_input_pin0_conf, lut1_input_pin1_conf, lut1_input_pin2_conf;
    system_pinmux_get_config_defaults(&lut1_input_pin0_conf);
    system_pinmux_get_config_defaults(&lut1_input_pin1_conf);
    system_pinmux_get_config_defaults(&lut1_input_pin2_conf);
    lut1_input_pin0_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
    lut1_input_pin0_conf.mux_position = CCL_LUT1_IN0_MUX;
    lut1_input_pin1_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
    lut1_input_pin1_conf.mux_position = CCL_LUT1_IN1_MUX;
    lut1_input_pin2_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
    lut1_input_pin2_conf.mux_position = CCL_LUT1_IN2_MUX;
    system_pinmux_pin_set_config(CCL_LUT1_IN0_PIN, &lut1_input_pin0_conf);
    system_pinmux_pin_set_config(CCL_LUT1_IN1_PIN, &lut1_input_pin1_conf);
    system_pinmux_pin_set_config(CCL_LUT1_IN2_MUX, &lut1_input_pin2_conf);
    struct system_pinmux_config lut1_out_pin_conf;
    system_pinmux_get_config_defaults(&lut1_out_pin_conf);
    lut1_out_pin_conf.direction    = SYSTEM_PINMUX_PIN_DIR_OUTPUT;
    lut1_out_pin_conf.mux_position = CCL_LUT1_OUT_MUX;
    system_pinmux_pin_set_config(CCL_LUT1_OUT_PIN, &lut1_out_pin_conf);

    ccl_lut_set_config(CCL_LUT_1, &conf);
}

Add to user application initialization (typically the start of main()):

    configure_ccl();
    configure_ccl_lut0();
    configure_ccl_lut1();
    ccl_seq_config(CCL_SEQ_0, CCL_SEQ_D_FLIP_FLOP);

    ccl_lut_enable(CCL_LUT_0);
    ccl_lut_enable(CCL_LUT_1);
    ccl_module_enable();

Workflow

1. Creates a CCL configuration struct, which can be filled out to adjust the configuration of CCL.

       struct ccl_config conf;

2. Settings and fill the CCL configuration struct with the default settings.

       ccl_get_config_defaults(&conf);

3. Initializes CCL module.

       ccl_init(&conf);

4. Creates a LUT configuration struct, which can be filled out to adjust the configuration of LUT0.

       struct ccl_lut_config conf;

   1. Fill the LUT0 configuration struct with the default settings.

          ccl_lut_get_config_defaults(&conf);

5. Adjust the LUT0 configuration struct.

       conf.truth_table_value = 0x02;
       conf.input0_src_sel = CCL_LUT_INPUT_SRC_IO;
       conf.input1_src_sel = CCL_LUT_INPUT_SRC_IO;
       conf.input2_src_sel = CCL_LUT_INPUT_SRC_IO;
       conf.filter_sel = CCL_LUTCTRL_FILTSEL_FILTER;

6. Set up LUT0 input and output pin.

       struct system_pinmux_config lut0_input_pin0_conf, lut0_input_pin1_conf, lut0_input_pin2_conf;
       system_pinmux_get_config_defaults(&lut0_input_pin0_conf);
       system_pinmux_get_config_defaults(&lut0_input_pin1_conf);
       system_pinmux_get_config_defaults(&lut0_input_pin2_conf);
       lut0_input_pin0_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
       lut0_input_pin0_conf.mux_position = CCL_LUT0_IN0_MUX;
       lut0_input_pin1_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
       lut0_input_pin1_conf.mux_position = CCL_LUT0_IN1_MUX;
       lut0_input_pin2_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
       lut0_input_pin2_conf.mux_position = CCL_LUT0_IN2_MUX;
       system_pinmux_pin_set_config(CCL_LUT0_IN0_PIN, &lut0_input_pin0_conf);
       system_pinmux_pin_set_config(CCL_LUT0_IN1_PIN, &lut0_input_pin1_conf);
       system_pinmux_pin_set_config(CCL_LUT0_IN2_PIN, &lut0_input_pin2_conf);
       struct system_pinmux_config lut0_out_pin_conf;
       system_pinmux_get_config_defaults(&lut0_out_pin_conf);
       lut0_out_pin_conf.direction    = SYSTEM_PINMUX_PIN_DIR_OUTPUT;
       lut0_out_pin_conf.mux_position = CCL_LUT0_OUT_MUX;
       system_pinmux_pin_set_config(CCL_LUT0_OUT_PIN, &lut0_out_pin_conf);

7. Writes LUT0 configuration to the hardware module.

       ccl_lut_set_config(CCL_LUT_0, &conf);

8. Creates a LUT configuration struct, which can be filled out to adjust the configuration of LUT1.

       struct ccl_lut_config conf;

   1. Fill the LUT1 configuration struct with the default settings.

          ccl_lut_get_config_defaults(&conf);

9. Adjust the LUT1 configuration struct.

       conf.truth_table_value = 0x02;
       conf.input0_src_sel = CCL_LUT_INPUT_SRC_IO;
       conf.input1_src_sel = CCL_LUT_INPUT_SRC_IO;
       conf.input2_src_sel = CCL_LUT_INPUT_SRC_IO;
       conf.filter_sel = CCL_LUTCTRL_FILTSEL_FILTER;

10. Set up LUT1 input and output pin.

        struct system_pinmux_config lut1_input_pin0_conf, lut1_input_pin1_conf, lut1_input_pin2_conf;
        system_pinmux_get_config_defaults(&lut1_input_pin0_conf);
        system_pinmux_get_config_defaults(&lut1_input_pin1_conf);
        system_pinmux_get_config_defaults(&lut1_input_pin2_conf);
        lut1_input_pin0_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
        lut1_input_pin0_conf.mux_position = CCL_LUT1_IN0_MUX;
        lut1_input_pin1_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
        lut1_input_pin1_conf.mux_position = CCL_LUT1_IN1_MUX;
        lut1_input_pin2_conf.direction    = SYSTEM_PINMUX_PIN_DIR_INPUT;
        lut1_input_pin2_conf.mux_position = CCL_LUT1_IN2_MUX;
        system_pinmux_pin_set_config(CCL_LUT1_IN0_PIN, &lut1_input_pin0_conf);
        system_pinmux_pin_set_config(CCL_LUT1_IN1_PIN, &lut1_input_pin1_conf);
        system_pinmux_pin_set_config(CCL_LUT1_IN2_MUX, &lut1_input_pin2_conf);
        struct system_pinmux_config lut1_out_pin_conf;
        system_pinmux_get_config_defaults(&lut1_out_pin_conf);
        lut1_out_pin_conf.direction    = SYSTEM_PINMUX_PIN_DIR_OUTPUT;
        lut1_out_pin_conf.mux_position = CCL_LUT1_OUT_MUX;
        system_pinmux_pin_set_config(CCL_LUT1_OUT_PIN, &lut1_out_pin_conf);

11. Writes LUT1 configuration to the hardware module.

        ccl_lut_set_config(CCL_LUT_1, &conf);

12. Configure the sequential logic with the D flip flop mode.

        ccl_seq_config(CCL_SEQ_0, CCL_SEQ_D_FLIP_FLOP);

Use Case

Code

Copy-paste the following code to your user application:

    while (true) {
        /* Do nothing */
    }