K230 SDK API Reference

• K230 Intercore Communication API Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
      • 1.1.1 Internuclear communication implementation principle
      • 1.1.2 Memory Space Usage
    • 1.2 Function Description
      • 1.2.1 IPCMSG
      • 1.2.2 DATAFIFO
  • 2. API Reference
    • 2.1 IPCMSG
      • 2.1.1 kd_ipcmsg_add_service
      • 2.1.2 kd_ipcmsg_del_service
      • 2.1.3 kd_ipcmsg_try_connect
      • 2.1.4 kd_ipcmsg_connect
      • 2.1.5 kd_ipcmsg_disconnect
      • 2.1.6 kd_ipcmsg_is_connect
      • 2.1.7 kd_ipcmsg_send_only
      • 2.1.8 kd_ipcmsg_send_async
      • 2.1.9 kd_ipcmsg_send_sync
      • 2.1.10 kd_ipcmsg_run
      • 2.1.11 kd_ipcmsg_create_message
      • 2.1.12 kd_ipcmsg_create_resp_message
      • 2.1.13 kd_ipcmsg_destroy_message
    • 2.2 DATAFIFO
      • 2.2.1 kd_datafifo_open
      • 2.2.2 kd_datafifo_open_by_addr
      • 2.2.3 kd_datafifo_close
      • 2.2.4 kd_datafifo_read
      • 2.2.5 kd_datafifo_write
      • 2.2.6 kd_datafifo_cmd
  • 3. Data Type
    • 3.1 IPCMSG
      • 3.1.1 K_IPCMSG_MAX_CONTENT_LEN
      • 3.1.2 K_IPCMSG_PRIVDATA_NUM
      • 3.1.3 K_IPCMSG_INVALID_MSGID
      • 3.1.4 k_ipcmsg_connect_s
      • 3.1.5 k_ipcmsg_messsage_s
      • 3.1.6 k_ipcmsg_handle_fn_ptr
    • 3.2 DATAFIFO
      • 3.2.1 k_datafifo_handle
      • 3.2.2 K_DATAFIFO_INVALID_HANDLE
      • 3.2.3 K_DATAFIFO_RELEASESTREAM_FN_PTR
      • 3.2.4 K_DATAFIFO_OPEN_MODE_E
      • 3.2.5 k_datafifo_params_s
      • 3.2.6 k_datafifo_cmd_e
  • 4. Error codes
    • 4.1 IPCMSG
    • 4.2 DATAFIFO
  • 5. Debugging information
    • 5.1 ipcm
• K230 System Control MAPI Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Function Description
  • 2. API Reference
    • 2.1 kd_mapi_sys_init
    • 2.2 kd_mapi_sys_deinit
    • 2.3 kd_mapi_media_init
    • 2.4 kd_mapi_media_deinit
    • 2.5 kd_mapi_alloc_buffer
    • 2.6 kd_mapi_free_buffer
    • 2.7 kd_mapi_sys_get_vb_block
    • 2.8 kd_mapi_sys_release_vb_block
  • 3. Data Type
    • 3.1 k_mapi_mod_id_e
    • 3.2 k_mapi_media_config_t
    • 3.3 k_mapi_media_attr_t
  • 4. Error codes
• K230 MultimediaMiddleware API Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • Preface
    • Overview
    • Intended Audience
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Module Description
      • 1.2.1 Video intercom
      • 1.2.2 Player
      • 1.2.3 Audio Mixer
      • 1.2.4 fMP4(Mp4) muxer and demuxer
  • 2. API Reference
    • 2.1 Video intercom Server
      • 2.1.1 KdRtspServer::Init
      • 2.1.2 KdRtspServer::DeInit
      • 2.1.3 KdRtspServer::CreateSession
      • 2.1.4 KdRtspServer::DestroySession
      • 2.1.5 KdRtspServer::Start
      • 2.1.6 KdRtspServer::Stop
      • 2.1.7 KdRtspServer::SendVideoData
      • 2.1.8 KdRtspServer::SendAudioData
    • 2.2 Video intercom Client
      • 2.2.1 KdRtspClient::Init
      • 2.2.2 KdRtspClient::Deinit
      • 2.2.3 KdRtspClient::Open
      • 2.2.4 KdRtspClient::Close
      • 2.2.5 KdRtspClient::SendAudioData
    • 2.3 Player
      • 2.3.1 kd_player_init
      • 2.3.2 kd_player_deinit
      • 2.3.3 kd_player_setdatasource
      • 2.3.4 kd_player_regcallback
      • 2.3.5 kd_player_start
      • 2.3.6 kd_player_stop
    • 2.4 Audio Mixer
      • 2.4.1 kd_mix_g711a_audio
      • 2.4.2 kd_mix_g711u_audio
    • 2.5 MP4 Muxer and Demuxer
      • 2.5.1 kd_mp4_create
      • 2.5.2 kd_mp4_destroy
      • 2.5.3 kd_mp4_create_track
      • 2.5.4 kd_mp4_destroy_tracks
      • 2.5.5 kd_mp4_write_frame
      • 2.5.6 kd_mp4_get_file_info
      • 2.5.7 kd_mp4_get_track_by_index
      • 2.5.8 kd_mp4_get_frame
• K230 DMA API reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Function Description
      • 1.2.1 gdma
      • 1.2.2 SDMA
  • 2. API Reference
    • 2.1 DMA Use
      • 2.1.1 kd_mpi_dma_set_dev_attr
      • 2.1.2 kd_mpi_dma_get_dev_attr
      • 2.1.3 kd_mpi_dma_start_dev
      • 2.1.4 kd_mpi_dma_stop_dev
      • 2.1.5 kd_mpi_dma_set_chn_attr
      • 2.1.6 kd_mpi_dma_get_chn_attr
      • 2.1.7 kd_mpi_dma_start_chn
      • 2.1.8 kd_mpi_dma_stop_chn
      • 2.1.9 kd_mpi_dma_send_frame
      • 2.1.10 kd_mpi_dma_get_frame
      • 2.1.11 kd_mpi_dma_release_frame
  • 3 Data type
    • 3.1 Common Data Types
      • 3.1.1 DMA_MAX_DEV_NUMS
      • 3.1.2 DMA_MAX_CHN_NUMS
      • 3.1.3 k_dma_mode_e
      • 3.1.4 k_dma_dev_attr_t
      • 3.1.5 k_dma_chn_attr_u
      • 3.1.6 k_video_frame_info
      • 3.1.7 k_video_frame
    • 3.2 GDMA channel data type
      • 3.2.1 GDMA_MAX_CHN_NUMS
      • 3.2.2 k_gdma_rotation_e
      • 3.2.3 k_pixel_format_dma_e
      • 3.2.4 k_gdma_chn_attr_t
    • 3.3 SDMA channel data type
      • 3.3.1 SDMA_MAX_CHN_NUMS
      • 3.3.2 k_sdma_data_mode_e
      • 3.3.3 k_sdma_chn_attr_t
  • 4. Error codes
    • 4.1 DMA error code
  • 5. Debugging information
    • 5.1 Overview
    • 5.2 System Binding
      • 5.2.1 System binding debugging information
  • 6. Demo description
    • 6.1 Unbound mode demo
    • 6.2 Binding mode demo
• K230 DPU API reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Function Description
      • 1.2.1 Binding mode invokes the process
      • 1.2.2 Invoke the process in unbound mode
  • 2. API Reference
    • 2.1 DPU usage
      • 2.1.1 kd_mpi_dpu_init
      • 2.1.2 kd_mpi_dpu_delete
      • 2.1.3 kd_mpi_dpu_parse_file
      • 2.1.4 kd_mpi_dpu_set_dev_attr
      • 2.1.5 kd_mpi_dpu_get_dev_attr
      • 2.1.6 kd_mpi_dpu_set_ref_image
      • 2.1.7 kd_mpi_dpu_set_processed_ref_image
      • 2.1.8 kd_mpi_dpu_set_template_image
      • 2.1.9 kd_mpi_dpu_start_dev
      • 2.1.10 kd_mpi_dpu_set_chn_attr
      • 2.1.11 kd_mpi_dpu_get_chn_attr
      • 2.1.12 kd_mpi_dpu_start_chn
      • 2.1.13 kd_mpi_dpu_stop_chn
      • 2.1.14 kd_mpi_dpu_send_frame
      • 2.1.15 kd_mpi_dpu_get_frame
      • 2.1.16 kd_mpi_dpu_release_frame
  • 3. Data Type
    • 3.1 Common Data Types
      • 3.1.1 k_dpu_init_t
      • 3.1.2 k_dpu_dev_param_t
      • 3.1.3 k_dpu_lcn_param_t
      • 3.1.4 k_dpu_ir_param_t
      • 3.1.5 k_dpu_user_space_t
      • 3.1.6 k_dpu_dev_attr_t
      • 3.1.7 k_dpu_chn_lcn_attr_t
      • 3.1.8 k_dpu_chn_ir_attr_t
      • 3.1.9 k_dpu_chn_result_u
      • 3.1.10 k_dpu_chn_lcn_result_t
      • 3.1.11 k_dpu_chn_ir_result_t
      • 3.1.12 k_dpu_disp_out_t
      • 3.1.13 k_dpu_depth_out_t
      • 3.1.14 k_dpu_ir_out_t
      • 3.1.15 k_dpu_qlt_out_t
    • 3.2 Long and short period parameter types
      • 3.2.1 k_dpu_long_parameter_t
      • 3.2.2 k_dpu_short_parameter_t
  • 4. Error codes
    • 4.1 dpu error code
  • 5. Debugging information
    • 5.1 Overview
    • 5.2 Debugging Information
  • 6. Demo description
    • 6.1 Introduction to dpu demo
    • 6.2 Feature 说明
      • 6.2.1 Unbound Mode
      • 6.2.2 Binding Mode
      • 6.2.3 Compilation and Execution
• K230 FFT API Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Introduction to the K230 FFT
  • 2. API Reference
    • 2.1 kd_mpi_fft_or_ifft
    • 2.2 kd_mpi_fft_args_init
    • 2.3 kd_mpi_fft_args_2_array
    • 2.4 kd_mpi_fft
    • 2.5 kd_mpi_ifft
  • 3. Data structure
    • 3.1 k_fft_args_st
    • 3.2 k_fft_mode_e
    • 3.3 k_fft_input_mode_e
    • 3.4 k_fft_out_mode_e
• K230 GPU API reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader
    • Definition of acronyms
    • Revision history
  • 1. Function introduction
  • 2. Data flow
  • 3. Software Interface
    • 3.1 Main Types and Definitions
      • 3.1.1 Parameter types
      • 3.1.2 Error Type vg_lite_error_t
      • 3.1.3 Feature Enumeration
    • 3.2 GPU control
      • 3.2.1 Context initialization and control functions
        • 3.2.1.1 vg_lite_set_command_buffer_size
        • 3.2.1.2 vg_lite_init
        • 3.2.1.3 vg_lite_close
        • 3.2.1.4 vg_lite_finish
        • 3.2.1.5 vg_lite_flush
      • 3.2.2 Pixel buffers
        • 3.2.2.1 Memory alignment requirements
          • 3.2.2.1.1 Source image alignment requirements
          • 3.2.2.1.2 Render target buffer alignment requirements
        • 3.2.2.2 Pixel caching
      • 3.2.3 Enumeration Types
        • 3.2.3.1 vg_lite_buffer_format_t
        • 3.2.3.2 vg_lite_buffer_image_mode_t
        • 3.2.3.3 vg_lite_buffer_layout_t
        • 3.2.3.4 vg_lite_buffer_transparency_mode_t
      • 3.2.4 Structures
        • 3.2.4.1 vg_lite_buffer_t
      • 3.2.5 Functions
        • 3.2.5.1 vg_lite_allocate
        • 3.2.5.2 vg_lite_free
        • 3.2.5.3 vg_lite_buffer_upload
        • 3.2.5.4 vg_lite_map
        • 3.2.5.5 vg_lite_unmap
        • 3.2.5.6 vg_lite_set_CLUT
    • 3.3 Matrix
      • 3.3.1 Structs
        • 3.3.1.1 vg_lite_matrix_t
      • 3.3.2 Functions
        • 3.3.2.1 vg_lite_identity
        • 3.3.2.2 vg_lite_perspective
        • 3.3.2.3 vg_lite_rotate
        • 3.3.2.4 vg_lite_scale
        • 3.3.2.5 vg_lite_translate
    • 3.4 BLITs for synthesis and mixing
      • 3.4.1 Enumeration Types
        • 3.4.1.1 vg_lite_blend_t
        • 3.4.1.2 vg_lite_filter_t
        • 3.4.1.3 vg_lite_global_alpha_t
      • 3.4.2 Structures
        • 3.4.2.1 vg_lite_rectangle_t
        • 3.4.2.2 vg_lite_point_t
        • 3.4.2.3 vg_lite_point4_t
      • 3.4.3 Functions
        • 3.4.3.1 vg_lite_blit
        • 3.4.3.2 vg_lite_blit_rect
        • 3.4.3.3 vg_lite_get_transform_matrix
        • 3.4.3.4 vg_lite_clear
      • 3.4.4 Global Alpha Function
        • 3.4.4.1 vg_lite_set_image_global_alpha
        • 3.4.4.2 vg_lite_set_dest_global_alpha
    • 3.5 Vector Path Control
      • 3.5.1 Enumeration Types
        • 3.5.1.1 vg_lite_quality_t
      • 3.5.2 Structs
        • 3.5.2.1 vg_lite_hw_memory
        • 3.5.2.2 vg_lite_path_t
          • 3.5.2.2.1 Special description of path objects
      • 3.5.3 Functions
        • 3.5.3.1 vg_lite_path_calc_length
        • 3.5.3.2 vg_lite_path_append
        • 3.5.3.3 vg_lite_init_path
        • 3.5.3.4 vg_lite_init_arc_path
        • 3.5.3.5 vg_lite_upload_path
        • 3.5.3.6 vg_lite_clear_path
      • 3.5.4 Vector Path Opcodes
    • 3.6 Vector-based drawing operations
      • 3.6.1 Enumeration Types
        • 3.6.1.1 vg_lite_fill_t
        • 3.6.1.2 vg_lite_pattern_mode_t
      • 3.6.2 Structures
        • v3.6.2.1 g_lite_color_ramp_t
        • 3.6.2.2 vg_lite_linear_gradient_t
      • 3.6.3 Functions
        • 3.6.3.1 vg_lite_draw
        • 3.6.3.2 vg_lite_draw_gradient
        • 3.6.3.3 vg_lite_draw_pattern
      • 3.6.4 Linear gradient initialization and control functions
        • 3.6.4.1 vg_lite_init_grad
        • 3.6.4.2 vg_lite_set_grad
        • 3.6.4.3 vg_lite_update_grad
        • 3.6.4.4 vg_lite_get_grad_matrix
        • 3.6.4.5 vg_lite_clear_grad
  • 4. Constraints
  • 5. Performance recommendations and best practices
    • 5.1 Cache vs Non-cache
    • 5.2 Memory Usage
    • 5.3 Drawing Process
  • 6. Examples
    • 6.1 tiger
    • 6.2 linear degrees
    • 6.3 imgIndex
    • 6.4 vglite_drm
    • 6.5 vglite_cube
• K230 SHA256 API Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • Preface
    • Overview
    • Reader Object
    • Definition of Acronyms
    • Revision History
  • 1. Function Introduction
  • 2. API Reference
    • 2.1 kd_mpi_cipher_sha256
  • 3. Debugging and Printing Information
• K230 VICAP API Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Function Description
      • 1.2.1 VICAP
      • 1.2.2 Sensor
  • 2. API Reference
    • 2.1 VICAP
      • 2.1.1 kd_mpi_vicap_get_sensor_info
      • 2.1.2 kd_mpi_vicap_set_dev_attr
      • 2.1.3 kd_mpi_vicap_get_dev_attr
      • 2.1.4 kd_mpi_vicap_set_chn_attr
      • 2.1.5 kd_mpi_vicap_get_chn_attr
      • 2.1.6 kd_mpi_vicap_init
      • 2.1.7 kd_mpi_vicap_deinit
      • 2.1.8 kd_mpi_vicap_start_stream
      • 2.1.9 kd_mpi_vicap_stop_stream
      • 2.1.10 kd_mpi_vicap_dump_frame
      • 2.1.11 kd_mpi_vicap_dump_release
    • 2.2 Sensor
      • 2.2.1 kd_mpi_sensor_open
      • 2.2.2 kd_mpi_sensor_close
      • 2.2.3 kd_mpi_sensor_power_set
      • 2.2.4 kd_mpi_sensor_id_get
      • 2.2.5 kd_mpi_sensor_init
      • 2.2.6 kd_mpi_sensor_reg_read
      • 2.2.7 kd_mpi_sensor_reg_write
      • 2.2.8 kd_mpi_sensor_mode_get
      • 2.2.9 kd_mpi_sensor_mode_set
      • 2.2.10 kd_mpi_sensor_stream_enable
      • 2.2.11 kd_mpi_sensor_again_set
      • 2.2.12 kd_mpi_sensor_again_get
      • 2.2.13 kd_mpi_sensor_dgain_set
      • 2.2.14 kd_mpi_sensor_dgain_get
      • 2.2.15 kd_mpi_sensor_intg_time_set
      • 2.2.16 kd_mpi_sensor_intg_time_get
  • 3. Data Type
    • 3.1 VICAP
      • 3.1.1 k_vicap_sensor_type
      • 3.1.2 k_vicap_dev
      • 3.1.3 k_vicap_chn
      • 3.1.4 k_vicap_csi_num
      • 3.1.5 k_vicap_mipi_lanes
      • 3.1.6 k_vicap_csi_data_type
      • 3.1.7 k_vicap_data_source
      • 3.1.8 k_vicap_vi_dvp_port
      • 3.1.9 k_vicap_vi_flash_mode
      • 3.1.10 k_vicap_img_window
      • 3.1.11 k_vicap_work_mode
      • 3.1.12 k_vicap_sensor_info
      • 3.1.13 k_vicap_dump_format
      • 3.1.14 k_vicap_dev_attr
      • 3.1.15 k_vicap_chn_attr
    • 3.2 Sensor
      • 3.2.1 k_sensor_bayer_pattern
      • 3.2.2 k_sensor_exp_frame_type
      • 3.2.3 k_sensor_exposure_param
      • 3.2.4 k_sensor_intg_time
      • 3.2.5 k_sensor_gain
      • 3.2.6 k_sensor_size
      • 3.2.7 k_sensor_ae_info
      • 3.2.8 k_sensor_mode
  • 4. Error codes
  • 5. Debugging information
• K230 System Control API Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Function Description
      • 1.2.1 VB Pool
      • 1.2.2 System binding
  • 2. API Reference
    • 2.1 Multimedia memory management
      • 2.1.1 kd_mpi_sys_mmz_alloc
      • 2.1.2 kd_mpi_sys_mmz_alloc_cached
      • 2.1.3 kd_mpi_sys_mmap
      • 2.1.4 kd_mpi_sys_mmap_cached
      • 2.1.5 kd_mpi_sys_munmap
      • 2.1.6 kd_mpi_sys_mmz_flush_cache
      • 2.1.7 kd_mpi_sys_mmz_free
      • 2.1.8 kd_mpi_sys_get_virmem_info
      • 2.1.9 kd_mpi_vb_set_config
      • 2.1.10 kd_mpi_vb_get_config
      • 2.1.11 kd_mpi_vb_init
      • 2.1.12 kd_mpi_vb_exit
      • 2.1.13 kd_mpi_vb_create_pool
      • 2.1.14 kd_mpi_vb_destory_pool
      • 2.1.15 kd_mpi_vb_get_block
      • 2.1.16 kd_mpi_vb_release_block
      • 2.1.17 kd_mpi_vb_phyaddr_to_handle
      • 2.1.18 kd_mpi_vb_handle_to_phyaddr
      • 2.1.19 kd_mpi_vb_handle_to_pool_id
      • 2.1.20 kd_mpi_vb_inquire_user_cnt
      • 2.1.21 kd_mpi_vb_get_supplement_attr
      • 2.1.22 kd_mpi_vb_set_supplement_config
      • 2.1.23 kd_mpi_vb_get_supplement_config
      • 2.1.24 kd_mpi_vb_set_mod_pool_config
      • 2.1.25 kd_mpi_vb_get_mod_pool_config
      • 2.1.26 kd_mpi_vb_init_mod_common_pool
      • 2.1.27 kd_mpi_vb_exit_mod_common_pool
    • 2.2 System Binding
      • 2.2.1 kd_mpi_sys_bind
      • 2.2.2 kd_mpi_sys_unbind
      • 2.2.3 kd_mpi_sys_get_bind_by_dest
    • 2.3 Log Management
      • 2.3.1 kd_mpi_log_set_level_conf
      • 2.3.2 kd_mpi_log_get_level_conf
      • 2.3.3 kd_mpi_log_set_wait_flag
      • 2.3.4 kd_mpi_log_read
      • 2.3.5 kd_mpi_log_close
      • 2.3.6 kd_mpi_log_set_console
      • 2.3.7 kd_mpi_log_get_console
  • 3. Data Type
    • 3.1 Common Data Types
      • 3.1.1 k_mod_id
      • 3.1.2 k_mpp_chn
    • 3.2 Multimedia memory management
      • 3.2.1 VB_MAX_POOLS
      • 3.2.2 k_vb_uid
      • 3.2.3 k_vb_config
      • 3.2.4 k_vb_pool_config
      • 3.2.5 k_vb_remap_mode
      • 3.2.6 k_vb_supplement_config
    • 3.3 Video Common Data Types
      • 3.3.1 k_video_frame_info
      • 3.3.2 k_video_frame
      • 3.3.3 k_video_supplement
      • 3.3.4 k_isp_frame_info
      • 3.3.5 k_jpeg_dcf
      • 3.3.6 k_isp_dcf_info
      • 3.3.7 k_isp_dcf_update_info
      • 3.3.8 k_isp_dcf_const_info
      • 3.3.9 k_compress_mode
      • 3.3.10 k_color_gamut
      • 3.3.11 k_dynamic_range
      • 3.3.12 k_video_format
      • 3.3.13 k_video_filed
      • 3.3.14 k_pixel_format
    • 3.4 Multimedia Log Management
      • 3.4.1 k_log_level_conf
  • 4. Error codes
    • 4.1 Multimedia memory management error codes
      • 4.1.1 Video buffer pool error code
      • 4.1.2 Multimedia memory zone error codes
    • 4.2 System binding error codes
    • 4.3 Log management error codes
  • 5. Debugging information
    • 5.1 Overview
    • 5.2 Multimedia memory management
      • 5.2.1 VB Pool Debugging Information
    • 5.2.2 Multimedia memory zone debugging information
    • 5.3 System Binding
      • 5.3.1 System binding debugging information
• K230 video codec API reference
  • Disclaimer
  • Trademark Notice
  • contents
  • Preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Function Description
      • 1.2.1 Video Coding
        • 1.2.1.1 Encoded channels
        • 1.2.1.2 Bitrate control
          • 1.2.1.2.1 CBR
          • 1.2.1.2.2 VBR
          • 1.2.1.2.3 FIXQP
        • 1.2.1.3 GOP structure
        • 1.2.1.4 2D operations
          • 1.2.1.4.1 Calculation of 2D conversion coefficients
          • 1.2.1.4.2 Configuration of 2D conversion coefficients
        • 1.2.1.5 Restrictions
        • 1.2.1.6 Examples of coding application
      • 1.2.2 Video decoding
        • 1.2.2.1 Examples of decoding applications
  • 2. API Reference
    • 2.1 Video Coding
      • 2.1.1 kd_mpi_venc_create_chn
      • 2.1.2 kd_mpi_venc_destory_chn
      • 2.1.3 kd_mpi_venc_start_chn
      • 2.1.4 kd_mpi_venc_stop_chn
      • 2.1.5 kd_mpi_venc_query_status
      • 2.1.6 kd_mpi_venc_get_stream
      • 2.1.7 kd_mpi_venc_release_stream
      • 2.1.8 kd_mpi_venc_send_frame
      • 2.1.9 kd_mpi_venc_set_rotaion
      • 2.1.10 kd_mpi_venc_get_rotaion
      • 2.1.11 kd_mpi_venc_set_mirror
      • 2.1.12 kd_mpi_venc_get_mirror
      • 2.1.13 kd_mpi_venc_enable_idr
      • 2.1.14 kd_mpi_venc_set_2d_mode
      • 2.1.15 kd_mpi_venc_get_2d_mode
      • 2.1.16 kd_mpi_venc_set_2d_osd_param
      • 2.1.17 kd_mpi_venc_get_2d_osd_param
      • 2.1.18 kd_mpi_venc_set_2d_border_param
      • 2.1.19 kd_mpi_venc_get_2d_border_param
      • 2.1.20 kd_mpi_venc_set_2d_custom_coef
      • 2.1.21 kd_mpi_venc_get_2d_custom_coef
      • 2.1.22 kd_mpi_venc_set_2d_color_gamut
      • 2.1.23 kd_mpi_venc_get_2d_color_gamut
      • 2.1.24 kd_mpi_venc_attach_2d
      • 2.1.25 kd_mpi_venc_detach_2d
      • 2.1.26 kd_mpi_venc_send_2d_frame
      • 2.1.27 kd_mpi_venc_get_2d_frame
      • 2.1.28 kd_mpi_venc_start_2d_chn
      • 2.1.29 kd_mpi_venc_stop_2d_chn
      • 2.1.30 kd_mpi_venc_request_idr
      • 2.1.31 kd_mpi_venc_set_h265_sao
      • 2.1.32 kd_mpi_venc_get_h265_sao
      • 2.1.33 kd_mpi_venc_set_dblk
      • 2.1.34 kd_mpi_venc_get_dblk
      • 2.1.35 kd_mpi_venc_set_roi_attr
      • 2.1.36 kd_mpi_venc_get_roi_attr
      • 2.1.37 kd_mpi_venc_set_h264_entropy
      • 2.1.38 kd_mpi_venc_get_h264_entropy
      • 2.1.39 kd_mpi_venc_set_h265_entropy
      • 2.1.40 kd_mpi_venc_get_h265_entropy
    • 2.2 Video Decoding
      • 2.2.1 kd_mpi_vdec_create_chn
      • 2.2.2 kd_mpi_vdec_destroy_chn
      • 2.2.3 kd_mpi_vdec_start_chn
      • 2.2.4 kd_mpi_vdec_stop_chn
      • 2.2.5 kd_mpi_vdec_query_status
      • 2.2.6 kd_mpi_vdec_send_stream
      • 2.2.7 kd_mpi_vdec_get_frame
      • 2.2.8 kd_mpi_vdec_release_frame
      • 2.2.9 kd_mpi_vdec_set_downscale
      • 2.2.10 kd_mpi_vdec_set_rotation
  • 3. Data Type
    • 3.1 Video Coding
      • 3.1.1 VENC_MAX_CHN_NUM
      • 3.1.2 K_VENC_MAX_2D_OSD_REGION_NUM
      • 3.1.3 K_VENC_MAX_2D_BORDER_NUM
      • 3.1.4 K_VENC_2D_COFF_NUM
      • 3.1.5 K_VENC_2D_MAX_CHN_NUM
      • 3.1.6 k_venc_rc_mode
      • 3.1.7 k_venc_pack_type
      • 3.1.8 k_venc_2d_calc_mode
      • 3.1.9 k_venc_2d_src_dst_fmt
      • 3.1.10 k_venc_2d_osd_fmt
      • 3.1.11 k_venc_2d_add_order
      • 3.1.12 k_rotation
      • 3.1.13 k_venc_mirror
      • 3.1.14 k_venc_2d_color_gamut
      • 3.1.15 k_venc_chn_attr
      • 3.1.16 k_venc_attr
      • 3.1.17 k_venc_rc_attr
      • 3.1.18 k_venc_cbr
      • 3.1.19 k_venc_vbr
      • 3.1.20 k_venc_fixqp
      • 3.1.21 k_venc_mjpeg_fixqp
      • 3.1.22 k_venc_chn_status
      • 3.1.23 k_venc_stream
      • 3.1.24 k_venc_pack
      • 3.1.25 k_venc_2d_osd_attr
      • 3.1.26 k_venc_2d_border_attr
      • 3.1.27 k_venc_h265_sao
      • 3.1.28 k_venc_rect
      • 3.1.29 k_venc_roi_attr
      • 3.1.30 k_venc_h264_entropy
      • 3.1.31 k_venc_h265_entropy
    • 3.2 Video Decoding
      • 3.2.1 K_VDEC_MAX_CHN_NUM
      • 3.2.2 k_vdec_send_mode
      • 3.2.3 k_vdec_chn_attr
      • 3.2.4 k_vdec_chn_status
      • 3.2.5 k_vdec_dec_err
      • 3.2.6 k_vdec_stream
      • 3.2.7 k_vdec_supplement_info
      • 3.2.8 k_vdec_dsl_mode
      • 3.2.9 k_vdec_dsl_size
      • 3.2.10 k_vdec_dsl_ratio
      • 3.2.11 k_vdec_downscale
  • 4. MAPI
    • 4.1 Video Coding
      • 4.1.1 Overview
      • 4.1.2 Encoded data flow diagram
      • 4.1.3 API
        • 4.1.3.1 kd_mapi_venc_init
        • 4.1.3.2 kd_mapi_venc_deinit
        • 4.1.3.3 kd_mapi_venc_registercallback
        • 4.1.3.4 kd_mapi_venc_unregistercallback
        • 4.1.3.5 kd_mapi_venc_start
        • 4.1.3.6 kd_mapi_venc_stop
        • 4.1.3.7 kd_mapi_venc_bind_vi
        • 4.1.3.8 kd_mapi_venc_unbind_vi
        • 4.1.3.9 kd_mapi_venc_request_idr
        • 4.1.3.10 kd_mapi_venc_enable_idr
      • 4.1.4 Data Types
        • 4.1.4.1 kd_venc_callback_s
        • 4.1.4.2 pfn_venc_dataproc
        • 4.1.4.3 kd_venc_data_s
        • 4.1.4.4 k_venc_data_pack_s
        • 4.1.4.5 KD_VENC_MAX_FRAME_PACKCOUNT
        • 4.1.4.6 KD_VENC_LIMITLESS_FRAME_COUNT
    • 4.2 Video Decoding
      • 4.2.1 API
        • 4.2.1.1 kd_mapi_vdec_init
        • 4.2.1.2 kd_mapi_vdec_deinit
        • 4.2.1.3 kd_mapi_vdec_start
        • 4.2.1.4 kd_mapi_vdec_stop
        • 4.2.1.5 kd_mapi_vdec_bind_vo
        • 4.2.1.6 kd_mapi_vdec_unbind_vo
        • 4.2.1.7 kd_mapi_vdec_send_stream
        • 4.2.1.8 kd_mapi_vdec_query_status
  • 5. error codes
  • 6. Debugging information
• K230 Video Output API Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • Preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Hardware Description
      • 1.1.1 MIPI interface
      • 1.1.2 Physical drawings
    • 1.2 Software Description
      • 1.2.1 PHY configuration process
        • 1.2.1.1 Calculate the PLL of PHY
        • 1.2.1.2 Configure VOC for PHY
        • 1.2.1.3 Configure FreQ
      • 1.2.2 Configuration of DSI
        • 1.2.2.1 Configure the timing of the display
        • 1.2.2.2 DSI send command
        • 1.2.2.3 DSI’s self-test mode
      • 1.2.3 Configuration of VO
        • 1.2.3.1 VO timing configuration
        • 1.2.3.2 Layer configuration for VO
        • 1.2.3.3 Configuration of the write-back function of VO
      • 1.2.4 Debugging method of VO module
        • 1.2.4.1 Test method for screens
        • 1.2.4.2 Test methods for DSI
        • 1.2.4.3 Test methods for VO
  • 2. API Reference
    • 2.1 TXPHY
      • 2.1.1 kd_mpi_set_mipi_phy_attr
    • 2.2 CIO
      • 2.2.1 kd_mpi_dsi_set_attr
      • 2.2.2 kd_mpi_dsi_enable
      • 2.2.3 kd_mpi_dsi_send_cmd
      • 2.2.4 kd_mpi_dsi_read_pkg
      • 2.2.5 kd_mpi_dsi_set_test_pattern
      • 2.2.6 kd_mpi_dsi_set_lp_mode_send_cmd
    • 2.3 VO
      • 2.3.1 kd_mpi_vo_init
      • 2.3.2 kd_mpi_vo_set_dev_param
      • 2.3.3 kd_mpi_vo_enable_video_layer
      • 2.3.4 kd_mpi_vo_disable_video_layer
      • 2.3.5 kd_mpi_vo_enable
      • 2.3.6 kd_mpi_vo_chn_insert_frame
      • 2.3.7 kd_mpi_vo_chn_dump_frame
      • 2.3.8 kd_mpi_vo_chn_dump_release
      • 2.3.9 kd_mpi_vo_osd_enable
      • 2.3.10 kd_mpi_vo_osd_disable
      • 2.3.11 kd_mpi_vo_set_video_osd_attr
      • 2.3.12 kd_mpi_vo_set_wbc_attr
      • 2.3.13 kd_mpi_vo_enable_wbc
      • 2.3.14 kd_mpi_vo_disable_wbc
      • 2.3.15 kd_display_reset
      • 2.3.16 kd_display_set_backlight
      • 2.3.17 kd_mpi_vo_set_user_sync_info
      • 2.3.18 kd_mpi_vo_draw_frame
      • 2.3.19 kd_mpi_get_connector_info
      • 2.3.20 kd_mpi_connector_open
      • 2.3.21 kd_mpi_connector_power_set
      • 2.3.22 kd_mpi_connector_init
  • 3. Data Type
    • 3.1 VO
      • 3.1.1 k_vo_intf_sync
      • 3.1.2 k_vo_intf_type
      • 3.1.3 k_pixel_format
      • 3.1.4 k_vo_osd
      • 3.1.5 k_vo_layer
      • 3.1.6 k_vo_rotation
      • 3.1.7 k_vo_mirror_mode
      • 3.1.8 k_vo_user_sync_info
      • 3.1.9 k_vo_point
      • 3.1.10 k_vo_size
      • 3.1.11 k_vo_video_layer_attr
      • 3.1.12 k_vo_wbc_attr
      • 3.1.13 k_vo_pub_attr
      • 3.1.14 k_vo_scaler_attr
      • 3.1.15 k_vo_draw_frame
      • 3.1.16 k_vo_display_resolution
      • 3.1.17 k_vo_mipi_phy_attr
      • 3.1.18 k_vo_video_osd_attr
      • 3.1.19 k_video_frame_info
      • 3.1.20 k_connector_type
      • 3.1.21 k_dsi_lan_num
      • 3.1.22 k_dsi_work_mode
      • 3.1.23 k_vo_dsi_cmd_mode
      • 3.1.24 k_connectori_phy_attr
      • 3.1.25 k_connector_info
  • 4. Error codes
• K230 Audio API reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Overview
    • 1.1 Overview
    • 1.2 Function Description
      • 1.2.1 Audio input
      • 1.2.2 Audio output
      • 1.2.3 Audio Link
      • 1.2.4 Sound Quality Enhancement
  • 2. API Reference
    • 2.1 Audio input
      • 2.1.1 kd_mpi_ai_set_pub_attr
      • 2.1.2 kd_mpi_ai_get_pub_attr
      • 2.1.3 kd_mpi_ai_enable
      • 2.1.4 kd_mpi_ai_disable
      • 2.1.5 kd_mpi_ai_enable_chn
      • 2.1.6 kd_mpi_ai_disable_chn
      • 2.1.7 kd_mpi_ai_get_frame
      • 2.1.8 kd_mpi_ai_release_frame
      • 2.1.9 kd_mpi_ai_set_vqe_attr
      • 2.1.10 kd_mpi_ai_get_vqe_attr
    • 2.2 Audio output
      • 2.2.1 kd_mpi_ao_set_pub_attr
      • 2.2.2 kd_mpi_ao_get_pub_attr
      • 2.2.3 kd_mpi_ao_enable
      • 2.2.4 kd_mpi_ao_disable
      • 2.2.5 kd_mpi_ao_enable_chn
      • 2.2.6 kd_mpi_ao_disable_chn
      • 2.2.7 kd_mpi_ao_send_frame
    • 2.3 Audio Coding
      • 2.3.1 kd_mpi_aenc_register_encoder
      • 2.3.2 kd_mpi_aenc_unregister_encoder
      • 2.3.3 kd_mpi_aenc_create_chn
      • 2.3.4 kd_mpi_aenc_destroy_chn
      • 2.3.5 kd_mpi_aenc_send_frame
      • 2.3.6 kd_mpi_aenc_get_stream
      • 2.3.7 kd_mpi_aenc_release_stream
    • 2.4 Audio Decoding
      • 2.4.1 kd_mpi_adec_register_decoder
      • 2.4.2 kd_mpi_adec_unregister_decoder
      • 2.4.3 kd_mpi_adec_create_chn
      • 2.4.4 kd_mpi_adec_destroy_chn
      • 2.4.5 kd_mpi_adec_send_stream
      • 2.4.6 kd_mpi_adec_clr_chn_buf
      • 2.4.7 kd_mpi_adec_get_frame
      • 2.4.8 kd_mpi_adec_release_frame
    • 2.5 built-in Audio Codec
      • 2.5.1 k_acodec_set_gain_micl
      • 2.5.2 k_acodec_set_gain_micr
      • 2.5.3 k_acodec_set_adcl_volume
      • 2.5.4 k_acodec_set_adcr_volume
      • 2.5.5 k_acodec_set_alc_gain_micl
      • 2.5.6 k_acodec_set_alc_gain_micr
      • 2.5.7 k_acodec_set_gain_hpoutl
      • 2.5.8 k_acodec_set_gain_hpoutr
      • 2.5.9 k_acodec_set_dacl_volume
      • 2.5.10 k_acodec_set_dacr_volume
      • 2.5.11 k_acodec_set_micl_mute
      • 2.5.12 k_acodec_set_micr_mute
      • 2.5.13 k_acodec_set_dacl_mute
      • 2.5.14 k_acodec_set_dacr_mute
      • 2.5.15 k_acodec_get_gain_micl
      • 2.5.16 k_acodec_get_gain_micr
      • 2.5.18 k_acodec_get_adcl_volume
      • 2.5.19 k_acodec_get_adcr_volume
      • 2.5.5 k_acodec_get_alc_gain_micl
      • 2.5.6 k_acodec_get_alc_gain_micr
      • 2.5.7 k_acodec_get_gain_hpoutl
      • 2.5.8 k_acodec_get_gain_hpoutr
      • 2.5.9 k_acodec_get_dacl_volume
      • 2.5.10 k_acodec_get_dacr_volume
      • 2.5.10 k_acodec_reset
    • 2.6 Audio coding MAPI
      • 2.6.1 kd_mapi_aenc_init
      • 2.6.2 kd_mapi_aenc_deinit
      • 2.6.3 kd_mapi_aenc_start
      • 2.6.4 kd_mapi_aenc_stop
      • 2.6.5 kd_mapi_aenc_registercallback
      • 2.6.6 kd_mapi_aenc_unregistercallback
      • 2.6.7 kd_mapi_aenc_bind_ai
      • 2.6.8 kd_mapi_aenc_unbind_ai
      • 2.6.9 kd_mapi_register_ext_audio_encoder
      • 2.6.10 kd_mapi_unregister_ext_audio_encoder
      • 2.6.11 kd_mapi_aenc_send_frame
    • 2.7 Audio Decoding MAPI
      • 2.7.1 kd_mapi_adec_init
      • 2.7.2 kd_mapi_adec_deinit
      • 2.7.3 kd_mapi_adec_start
      • 2.7.4 kd_mapi_adec_stop
      • 2.7.5 kd_mapi_adec_registercallback
      • 2.7.6 kd_mapi_adec_unregistercallback
      • 2.7.7 kd_mapi_adec_bind_ao
      • 2.7.8 kd_mapi_adec_unbind_ao
      • 2.7.9 kd_mapi_register_ext_audio_decoder
      • 2.7.10 kd_mapi_unregister_ext_audio_decoder
      • 2.7.11 kd_mapi_adec_send_stream
  • 3. Data Type
    • 3.1 Audio input and output
      • 3.1.1 k_audio_type
      • 3.1.2 k_audio_dev
      • 3.1.3 k_ai_chn
      • 3.1.4 k_ao_chn
      • 3.1.5 K_MAX_AUDIO_FRAME_NUM
      • 3.1.6 k_audio_bit_width
      • 3.1.7 k_audio_snd_mode
      • 3.1.8 k_audio_pdm_oversample
      • 3.1.9 k_audio_pdm_attr
      • 3.1.10 k_audio_i2s_attr
      • 3.1.11 k_i2s_work_mode
      • 3.1.12 k_aio_dev_attr
      • 3.1.13 k_aio_i2s_type
      • 3.1.14 k_audio_frame
      • 3.1.15 k_audio_anr_cfg
      • 3.1.16 k_audio_agc_cfg
      • 3.1.17 k_ai_vqe_cfg
    • 3.2 Audio codec
      • 3.2.1 k_payload_type
      • 3.2.2 k_aenc_encoder
      • 3.2.3 k_aenc_chn_attr
      • 3.2.4 AENC_MAX_CHN_NUMS
      • 3.2.5 K_MAX_ENCODER_NAME_LEN
      • 3.2.6 k_aenc_chn
      • 3.2.7 k_audio_stream
      • 3.2.8 k_adec_chn_attr
      • 3.2.9 k_adec_decoder
      • 3.2.10 K_MAX_DECODER_NAME_LEN
      • 3.2.11 ADEC_MAX_CHN_NUMS
      • 3.2.12 k_adec_chn
    • 3.3 MAPI
      • 3.3.1 k_handle
  • 4. Error codes
    • 4.1 Audio Input API Error Code
    • 4.2 Audio Output API error codes
• K230_DRM_API_Reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1. Introduction to DRM
    • 1.1 DRM architecture features
    • 1.2 DRM architecture composition
  • 2. ModeTest instructions
    • 2.1 Query K230 DRM details
    • The 2.2 video layer outputs smpte color bars with NV12 color space
    • 2.3 The OSD layer outputs tiles color bars, and the color space is AR24(ARGB8888)
    • 2.4 OSD layer outputs tiles color bars with a color space of RG16(RGB565)
  • 3. Introduction to DRM API
    • 3.1 Turn on the DRM device
    • 3.2 Retrieving DRM resources
    • 3.3 Enable or disable DRM-related features
    • 3.4 Retrieving layer resources
    • 3.5 Obtaining Connectors
    • 3.6 Apply for DRM DUMB buffer
    • 3.7 Submit DRM Requests
  • 4. Precautions
• K230 Big core low-speed driver API reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1 Overview
    • 1.1 Overview
    • 1.2 Function Description
    • 1.3 Driver API usage
      • 1.3.1 UART
        • Kernel-state programs use uart
      • 1.3.2 I2C
        • Kernel-state programs use I2C
      • 1.3.3 GPIO
        • Kernel-state programs use GPIO
        • User-mode programs use GPIO (read-write only)
      • 1.3.4 Hard-lock
        • The kernel state uses hard-lock
      • 1.3.5 ADC
        • 1.3.5.1 User-mode MSH uses ADC
        • 1.3.5.2 User-mode programs use ADC
        • 1.3.5.3 Kernel-state programs use ADC
      • 1.3.6 WDT
        • 1.3.6.1 User-mode programs use WDT
        • 1.3.6.2 Kernel-state programs use WDT
      • 1.3.7 OTP
        • 1.3.7.1 User-mode programs use OTP
        • 1.3.7.2 Kernel-state programs use OTP
        • 1.3.7.3 Precautions
      • 1.3.8 TS
        • 1.3.8.1 User-mode programs use TS
        • 1.3.8.2 Kernel-state programs use TS
        • 1.3.8.3 Precautions
      • 1.3.9 PWM
        • 1.3.9.1 Kernel-state programs use PWM
        • 1.3.9.2 The FinSH command uses PWM
        • 1.3.9.3 Precautions
      • 1.3.10 RTC
        • 1.3.10.1 Kernel mode uses RTC
        • 1.3.10.2 Precautions
      • 1.3.11 TIMER
        • 1.3.11.1 The kernel state uses TIMER
        • 1.3.11.2 Precautions
  • 2. API Reference
    • 2.1 Kernel-mode API
      • 2.1.1 UART
        • 2.1.1.1 rt_serial_init
        • 2.1.1.2 rt_serial_open
        • 2.1.1.3 rt_serial_close
        • 2.1.1.4 rt_serial_read
        • 2.1.1.5 rt_serial_write
        • 2.1.1.6 rt_serial_control
      • 2.1.2 I2C
        • 2.1.2.1 rt_i2c_bus_device_find
        • 2.1.2.2 rt_i2c_master_send
        • 2.1.2.3 rt_i2c_master_recv
        • 2.1.2.4 rt_i2c_transfer
      • 2.1.3 GPIO
        • 2.1.3.1 kd_pin_mode
        • 2.1.3.2 kd_pin_write
        • 2.1.3.3 kd_pin_read
        • 2.1.3.4 kd_pin_attach_irq
        • 2.1.3.5 kd_pin_detach_irq
        • 2.1.3.6 kd_pin_irq_enable
        • 2.1.3.7 gpio_device_ioctl
      • 2.1.4 Hard-lock
        • 2.1.4.1 kd_request_lock
        • 2.1.4.2 kd_hardlock_lock
        • 2.1.4.3 kd_hardlock_unlock
      • 2.1.5 ADC
        • 2.1.5.1 rt_device_find
        • 2.1.5.2 rt_adc_enable
        • 2.1.5.3 rt_adc_read
        • 2.1.5.4 rt_adc_disable
      • 2.1.6 WDT
        • 2.1.6.1 rt_device_find
        • 2.1.6.2 rt_device_init
        • 2.1.6.3 rt_device_control
      • 2.1.7 OTP
        • 2.1.7.1 otp_device_read
        • 2.1.7.2 otp_device_write
      • 2.1.8 TS
        • 2.1.8.1 ts_device_read
      • 2.1.9 PWM
        • 2.1.9.1 rt_pwm_set
        • 2.1.9.2 rt_pwm_enable
        • 2.1.9.3 rt_pwm_disable
      • 2.1.10 RTC
        • 2.1.10.1 set_date
        • 2.1.10.2 set_time
      • 2.1.11 TIMER
        • 2.1.11.1 rt_device_set_rx_indicate
    • 2.2 User-mode API
      • 2.2.1 ADC
        • 2.2.1.1 rt_device_find
        • 2.2.1.2 rt_device_open
        • 2.2.1.3 rt_device_control
        • 2.2.1.4 rt_device_read
      • 2.2.2 WDT
        • 2.2.2.1 open
        • 2.2.2.2 ioctl
      • 2.2.3 OTP
        • 2.2.3.1 rt_device_find
        • 2.2.3.2 rt_device_open
        • 2.2.3.3 rt_device_read
        • 2.2.3.4 rt_device_write
        • 2.2.3.5 rt_device_close
      • 2.2.4 TS
  • 3. Data Type
    • 3.1 struct rt_device_gpio
    • 3.2 device_hardlock
    • 3.3 struct kd_alarm_setup
  • 4. Error codes
  • 5. Calculation formula
    • 5.1 ADC calculation formula
    • 5.2 WDT timeout calculation formula
• K230 little core Linux driver API reference
  • Disclaimer
  • Trademark Notice
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • 1 Overview
    • 1.1 Overview
    • 1.2 Function Description
      • 1.2.1 UART module
      • 1.2.2 I2C module
      • 1.2.3 GPIO module
      • 1.2.4 Hard-lock module
      • 1.2.5 WDT module
      • 1.2.6 OTP module
      • 1.2.7 TS module
      • 1.2.8 TRNG module
      • 1.2.9 ADC Module
      • 1.2.10 PWM module
      • 1.2.11 FBTFT module
  • 2 Usage reference
    • 2.1 UART Usage Reference
    • 2.2 I2C Usage Reference
    • 2.3 GPIO Usage Reference
      • 2.3.1 sysfs operates GPIO
      • 2.3.2 Using gpio via ioctl
    • 2.4 Hardlock usage reference
    • 2.5 Watchdog usage reference
      • 2.5.1 Using Watchdog via IOCTL
      • 2.5.2 Using watchdog via file system
    • 2.6 OTP Usage Reference
      • 2.6.1 Sysfs file system
      • 2.6.2 User-mode access to OTP
      • 2.6.3 OTP space defaults
    • 2.7 TS Usage Reference
      • 2.7.1 sysfs file system
      • 2.7.2 User-mode access TS
    • 2.8 TRNG Usage Reference
      • 2.8.1 sysfs file system
      • 2.8.2 User access to TRNG
    • 2.9 ADC Usage Reference
      • 2.9.1 sysfs access ADC
      • 2.9.2 User-mode access ADC
    • 2.10 PWM usage reference
      • 2.10.1 sysfs access PWM
      • 2.10.2 User-mode access PWM
    • 2.11 FBTFT Configuration Reference