| ////////////////////////////////////////////////////////////////////////////// |
| // SPDX-FileCopyrightText: 2021 , Dinesh Annayya |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // SPDX-License-Identifier: Apache-2.0 |
| // SPDX-FileContributor: Created by Dinesh Annayya <dinesh.annayya@gmail.com> |
| // |
| ////////////////////////////////////////////////////////////////////// |
| module pwm_core ( |
| |
| input logic h_reset_n , |
| input logic mclk , |
| |
| // Reg Bus Interface Signal |
| input logic reg_cs , |
| input logic reg_wr , |
| input logic [1:0] reg_addr , |
| input logic [31:0] reg_wdata , |
| input logic [3:0] reg_be , |
| |
| // Outputs |
| output logic [31:0] reg_rdata , |
| output logic reg_ack , |
| |
| input logic cfg_pwm_enb , // pwm operation enable |
| input logic cfg_pwm_run , // pwm operation Run |
| input logic cfg_pwm_dupdate , // Disable Config update |
| input logic [7:0] pad_gpio , |
| output logic pwm_wfm_o , |
| output logic pwm_os_done , |
| output logic pwm_ovflow , |
| output logic gpio_tgr |
| |
| |
| |
| ); |
| |
| logic [3:0] cfg_pwm_scale ; // pwm clock scaling |
| logic cfg_pwm_oneshot ; // pwm OneShot mode |
| logic cfg_pwm_frun ; // pwm is free running |
| logic cfg_pwm_gpio_enb ; // pwm gpio based trigger |
| logic cfg_pwm_gpio_edge ; // pwm gpio based trigger edge |
| logic [2:0] cfg_pwm_gpio_sel ; // gpio Selection |
| logic cfg_pwm_hold ; // Hold data pwm data During pwm Disable |
| logic cfg_pwm_inv ; // invert output |
| logic cfg_pwm_zeropd ; // Reset on pmw_cnt match to period |
| logic [1:0] cfg_pwm_mode ; // pwm Pulse Generation mode |
| logic cfg_comp0_center ; // Compare cnt at comp0 center |
| logic cfg_comp1_center ; // Compare cnt at comp1 center |
| logic cfg_comp2_center ; // Compare cnt at comp2 center |
| logic cfg_comp3_center ; // Compare cnt at comp3 center |
| logic [15:0] cfg_pwm_period ; // pwm period |
| logic [15:0] cfg_pwm_comp0 ; // compare0 |
| logic [15:0] cfg_pwm_comp1 ; // compare1 |
| logic [15:0] cfg_pwm_comp2 ; // compare2 |
| logic [15:0] cfg_pwm_comp3 ; // compare3 |
| |
| |
| |
| |
| pwm_blk_reg u_reg ( |
| .mclk (mclk ), |
| .h_reset_n (h_reset_n ), |
| |
| .reg_cs (reg_cs ), |
| .reg_wr (reg_wr ), |
| .reg_addr (reg_addr ), |
| .reg_wdata (reg_wdata ), |
| .reg_be (reg_be ), |
| |
| .reg_rdata (reg_rdata ), |
| .reg_ack (reg_ack ), |
| |
| .cfg_pwm_enb (cfg_pwm_enb ), // PWM operation enable |
| .cfg_pwm_dupdate (cfg_pwm_dupdate ), // Disable Config update |
| .pwm_cfg_update (pwm_ovflow ), // Update the pwm config on roll-over or completion |
| |
| .cfg_pwm_scale (cfg_pwm_scale ), // clock scaling |
| .cfg_pwm_oneshot (cfg_pwm_oneshot ), // PWM OneShot mode |
| .cfg_pwm_frun (cfg_pwm_frun ), // PWM is free running |
| .cfg_pwm_gpio_enb (cfg_pwm_gpio_enb ), // PWM GPIO based trigger enable |
| .cfg_pwm_gpio_edge (cfg_pwm_gpio_edge ), // PWM GPIO based trigger edge |
| .cfg_pwm_gpio_sel (cfg_pwm_gpio_sel ), // GPIO Selection |
| .cfg_pwm_hold (cfg_pwm_hold ), // Hold data PWM data During PWM Disable |
| .cfg_pwm_inv (cfg_pwm_inv ), // invert output |
| .cfg_pwm_zeropd (cfg_pwm_zeropd ), // Reset on pmw_cnt match to period |
| .cfg_pwm_mode (cfg_pwm_mode ), // PWM Pulse Generation mode |
| .cfg_comp0_center (cfg_comp0_center ), // Compare cnt at comp0 center |
| .cfg_comp1_center (cfg_comp1_center ), // Compare cnt at comp1 center |
| .cfg_comp2_center (cfg_comp2_center ), // Compare cnt at comp2 center |
| .cfg_comp3_center (cfg_comp3_center ), // Compare cnt at comp3 center |
| .cfg_pwm_period (cfg_pwm_period ), // PWM period |
| .cfg_pwm_comp0 (cfg_pwm_comp0 ), // compare0 |
| .cfg_pwm_comp1 (cfg_pwm_comp1 ), // compare1 |
| .cfg_pwm_comp2 (cfg_pwm_comp2 ), // compare2 |
| .cfg_pwm_comp3 (cfg_pwm_comp3 ) // compare3 |
| |
| ); |
| |
| |
| |
| pwm u_pwm ( |
| .h_reset_n (h_reset_n ), |
| .mclk (mclk ), |
| |
| .pwm_wfm_o (pwm_wfm_o ), |
| .pwm_os_done (pwm_os_done ), |
| .pwm_ovflow_pe (pwm_ovflow ), |
| .gpio_tgr (gpio_tgr ), |
| |
| .pad_gpio (pad_gpio ), |
| |
| .cfg_pwm_enb (cfg_pwm_enb ), |
| .cfg_pwm_run (cfg_pwm_run ), |
| .cfg_pwm_scale (cfg_pwm_scale ), |
| .cfg_pwm_oneshot (cfg_pwm_oneshot ), |
| .cfg_pwm_frun (cfg_pwm_frun ), |
| .cfg_pwm_gpio_enb (cfg_pwm_gpio_enb ), |
| .cfg_pwm_gpio_edge (cfg_pwm_gpio_edge ), |
| .cfg_pwm_gpio_sel (cfg_pwm_gpio_sel ), |
| .cfg_pwm_hold (cfg_pwm_hold ), |
| .cfg_pwm_inv (cfg_pwm_inv ), |
| .cfg_pwm_zeropd (cfg_pwm_zeropd ), |
| .cfg_pwm_mode (cfg_pwm_mode ), |
| .cfg_comp0_center (cfg_comp0_center ), |
| .cfg_comp1_center (cfg_comp1_center ), |
| .cfg_comp2_center (cfg_comp2_center ), |
| .cfg_comp3_center (cfg_comp3_center ), |
| .cfg_pwm_period (cfg_pwm_period ), |
| .cfg_pwm_comp0 (cfg_pwm_comp0 ), |
| .cfg_pwm_comp1 (cfg_pwm_comp1 ), |
| .cfg_pwm_comp2 (cfg_pwm_comp2 ), |
| .cfg_pwm_comp3 (cfg_pwm_comp3 ) |
| ); |
| |
| endmodule |
