Manuali utente per Cypress CY4672

Sommario

• CY4672 Reference Design Guide

  1
• Contents

  3
• 1. Introduction

  9
  • 1.1 Scope

    9
  • 1.2 Chapter Overviews

    9
  • 1.3 Support

    9
  • 1.4 Conventions

    10
    • 1.4.1 Definitions

      10
    • 1.4.2 Acronyms

      10
• 2. WirelessUSB™ Protocol 2.2

  13
  • 2.1 General Overview

    13
    • 2.1.1 Radio Channel Management

      13
    • 2.1.2 Pseudo Noise Codes

      13
    • 2.1.3 Chip Error Correction

      14
    • 2.1.4 Automatic Acknowledgment (AutoACK)

      14
    • 2.1.5 Network ID

      14
    • 2.1.6 Manufacturing ID

      14
    • 2.1.7 Channel Selection Algorithm

      15
  • 2.2 Protocol Modes

    15
    • 2.2.1 Ping Mode (Bridge Only)

      16
    • 2.2.2 Idle Mode (HID only)

      17
    • 2.2.3 Reconnect Mode (HID only)

      17
    • 2.2.4 Button Bind Mode

      17
    • 2.2.5 Enhanced KISSBind™

      18
    • 2.2.6 Unbind

      20
    • 2.2.7 Data Mode

      20
    • 2.2.8 Back Channel Data Support

      20
    • 2.2.9 Dynamic Data Rate and Dynamic PA

      22
  • 2.3 Packet Structures

    23
    • 2.3.1 Bind/KISSBind Request Packet (HID)

      23
    • 2.3.2 Bind Response Packet (Bridge)

      24
    • 2.3.3 Connect Request (HID)

      24
    • 2.3.4 Connect Response Packet (Bridge)

      24
    • 2.3.5 Ping Packet (Bridge)

      25
    • 2.3.6 Data Packet/Back Channel Data Packet (Bridge and HID)

      25
  • 2.4 Bind and Reconnect Timing

    26
  • 2.5 Signature Byte

    28
  • 2.6 Encryption

    29
    • 2.6.1 TEA Encryption

      29
      • 2.6.1.1 TEA Key Management over WirelessUSB

        29
    • 2.6.2 AES Encryption

      30
      • 2.6.2.1 AES Key Management

        31
    • 2.6.3 Encryption and Power Consumption Trade Off

      31
• 3. Mouse

  33
  • 3.1 Introduction

    33
    • 3.1.1 Design Features

      33
  • 3.2 Hardware Overview

    33
    • 3.2.1 RDK Mouse Assembly

      33
    • 3.2.2 Hardware Block Diagram

      35
    • 3.2.3 Schematics

      35
    • 3.2.4 Hardware Considerations

      36
  • 3.3 Firmware Architecture

    36
    • 3.3.1 ROM/RAM Usage

      36
    • 3.3.2 PRoC LP Device Configuration

      36
      • 3.3.2.1 Global Configuration

        38
        • 3.3.2.1.1 CPU Clock

          38
        • 3.3.2.1.2 CPU Clock / N

          38
        • 3.3.2.1.3 Timer Clock

          38
        • 3.3.2.1.4 Timer Clock /N

          38
        • 3.3.2.1.5 FreeRun Timer

          38
        • 3.3.2.1.6 FreeRun Timer /N

          38
        • 3.3.2.1.7 Capture Edge

          38
        • 3.3.2.1.8 8 Bit Capture Prescaler

          38
        • 3.3.2.1.9 CLKOUT Source

          38
        • 3.3.2.1.10 Low V Detect

          38
        • 3.3.2.1.11 V Reset

          38
        • 3.3.2.1.12 Watchdog Enable

          38
      • 3.3.2.2 SPI Master User Module

        38
      • 3.3.2.3 Programmable Interval Timer User Module

        39
      • 3.3.2.4 Flash Security

        39
    • 3.3.3 Model

      39
    • 3.3.4 Common Code

      40
      • 3.3.4.1 Generated Library Code

        40
        • 3.3.4.1.1 Timer Interrupt Module

          40
      • 3.3.4.2 Debounce Module

        40
      • 3.3.4.3 SPI Module

        40
      • 3.3.4.4 Radio Driver

        41
      • 3.3.4.5 Protocol Module

        41
      • 3.3.4.6 Flash Module

        41
      • 3.3.4.7 Port Module

        41
      • 3.3.4.8 Poll Module

        41
      • 3.3.4.9 Timer Module

        41
      • 3.3.4.10 ISR Module

        42
    • 3.3.5 Application Code

      42
      • 3.3.5.1 Mouse Module

        42
      • 3.3.5.2 Optical Module

        43
      • 3.3.5.3 Testmode Module

        43
      • 3.3.5.4 Buttons Module

        44
      • 3.3.5.5 Mfgtest Module

        44
      • 3.3.5.6 Wheel Module

        44
      • 3.3.5.7 Battery Module

        45
    • 3.3.6 Configuration Options

      45
      • 3.3.6.1 MOUSE_REPORT_IN_MS

        45
      • 3.3.6.2 MOUSE_ACTIVE_MS

        45
      • 3.3.6.3 MOUSE_DISCONNECTED_POLL_MS

        45
      • 3.3.6.4 MOUSE_TX_TIMEOUT_MS

        45
      • 3.3.6.5 MOUSE_CONNECT_ATTEMPT_TIMES

        46
      • 3.3.6.6 PLATFORM_H

        46
      • 3.3.6.7 MOUSE_800_NOT_400_CPI

        46
      • 3.3.6.8 MOUSE_BATTERY_STATUS

        46
      • 3.3.6.9 MOUSE_TEST_MODE

        46
      • 3.3.6.10 MFG_TEST_CODE

        46
      • 3.3.6.11 MFG_TX_MODES

        46
      • 3.3.6.12 MASTER_PROTOCOL

        46
      • 3.3.6.13 PAYLOAD_LENGTH

        46
      • 3.3.6.14 KISS_BIND

        47
      • 3.3.6.15 RSSI_QUALIFY

        47
      • 3.3.6.16 AUTO_CONNECT

        47
    • 3.3.7 Platform and Architecture Portability

      47
    • 3.3.8 Initialization

      47
    • 3.3.9 Wireless Protocol Data Payload

      47
      • 3.3.9.1 Packet Format 1

        48
      • 3.3.9.2 Packet Format 2

        48
      • 3.3.9.3 Packet Format 3

        48
    • 3.3.10 Interrupt usage and timing

      48
    • 3.3.11 Code Performance Analysis

      49
  • 3.4 Development Environment

    49
    • 3.4.1 Tools

      49
    • 3.4.2 Tips and Tricks

      50
      • 3.4.2.1 M8C Sleep

        50
      • 3.4.2.2 Watchdog Timer

        50
    • 3.4.3 Critical Test Points

      50
• 4. Keyboard

  51
  • 4.1 Introduction

    51
    • 4.1.1 Design Features

      51
  • 4.2 Hardware Overview

    51
    • 4.2.1 RDK Keyboard Assembly

      52
    • 4.2.2 Schematic

      54
    • 4.2.3 Keyboard Matrix

      55
    • 4.2.4 Hardware Considerations

      55
  • 4.3 Firmware Architecture

    56
    • 4.3.1 ROM/RAM usage

      56
    • 4.3.2 enCoRe II Device Configuration

      56
      • 4.3.2.1 Global Configuration

        58
      • 4.3.2.2 SPI Master User Module

        59
      • 4.3.2.3 Programmable Interval Timer User Module

        59
      • 4.3.2.4 Flash Security

        59
    • 4.3.3 Model

      60
    • 4.3.4 Common Code

      60
      • 4.3.4.1 Generated Library Code

        60
      • 4.3.4.2 Radio Driver

        60
      • 4.3.4.3 Protocol Module

        61
      • 4.3.4.4 Flash Module

        61
      • 4.3.4.5 ISR Module

        61
      • 4.3.4.6 Timer Module

        61
    • 4.3.5 Application Code

      61
      • 4.3.5.1 Keyboard Module

        61
      • 4.3.5.2 Mfgtest Module

        62
      • 4.3.5.3 Battery Module

        62
      • 4.3.5.4 Test Module

        62
      • 4.3.5.5 Encrypt Module

        63
    • 4.3.6 Configuration Options

      63
      • 4.3.6.1 KEYBOARD_KEEP_ALIVE_TIMEOUT

        63
      • 4.3.6.2 KEY_DOWN_DELAY_SAMPLE_PERIOD

        63
      • 4.3.6.3 KEYBOARD_DEBOUNCE_COUNT

        63
      • 4.3.6.4 KEYBOARD_MULTIMEDIA_SUPPORT

        63
      • 4.3.6.5 KEYBOARD_TEST_MODES

        64
      • 4.3.6.6 KEYBOARD_TEST_MODE_PERIOD

        64
      • 4.3.6.7 PANGRAM_TEST_MODE

        64
      • 4.3.6.8 KEYBOARD_BATTERY_VOLTAGE_SUPPORT

        64
      • 4.3.6.9 LP_RDK_KEYBOARD_MATRIX

        64
      • 4.3.6.10 KEYBOARD_TX_TIMEOUT

        64
      • 4.3.6.11 TIMER_CAL

        64
      • 4.3.6.12 ENCRYPT_TEA

        64
      • 4.3.6.13 ENCRYPT_AES

        64
      • 4.3.6.14 MFG_TEST_CODE

        64
      • 4.3.6.15 MFG_ENTER_BY_PIN

        64
      • 4.3.6.16 MFG_TX_MODES

        65
      • 4.3.6.17 MOUSE_EMULATION_MODE

        65
      • 4.3.6.18 BACK_CHANNEL_SUPPORT

        65
      • 4.3.6.19 MASTER_PROTOCOL

        65
      • 4.3.6.20 PAYLOAD_LENGTH

        65
      • 4.3.6.21 KISS_BIND

        65
      • 4.3.6.22 RSSI_QUALIFY

        65
      • 4.3.6.23 PLATFORM_H

        65
    • 4.3.7 Platform and Architecture Portability

      65
    • 4.3.8 Initialization

      66
    • 4.3.9 Wireless Protocol Data Payload

      66
      • 4.3.9.1 Keyboard Application Report Formats

        66
        • 4.3.9.1.1 Standard 101 Keys Report

          66
        • 4.3.9.1.2 Multimedia Keys (Hot keys) Report

          68
        • 4.3.9.1.3 Power Keys (Suspend/Sleep) Report

          68
        • 4.3.9.1.4 Keep Alive Report

          69
        • 4.3.9.1.5 Battery Voltage Level Report

          69
    • 4.3.10 Ghost Key Detection

      70
    • 4.3.11 Interrupt Usage / Timing

      70
    • 4.3.12 Code Performance Analysis

      71
  • 4.4 Modifying the Keyboard Matrix or Adding New Keys

    72
    • 4.4.1 Modifying the Keyboard Matrix

      72
    • 4.4.2 Adding New Keys

      72
  • 4.5 Development Environment

    73
    • 4.5.1 Tools

      73
    • 4.5.2 Tips and Tricks

      73
      • 4.5.2.1 M8C Sleep

        73
      • 4.5.2.2 Watchdog Timer

        73
    • 4.5.3 Critical Test Points

      74
• 5. Bridge

  75
  • 5.1 Introduction

    75
    • 5.1.1 Design Features

      75
  • 5.2 Hardware Overview

    75
    • 5.2.1 Bridge Photographs

      76
    • 5.2.2 In-System Programming

      76
    • 5.2.3 Schematics

      77
    • 5.2.4 LED Usage

      77
  • 5.3 Firmware Architecture

    78
    • 5.3.1 ROM/RAM Usage

      78
    • 5.3.2 PRoC LP Device Configuration

      78
      • 5.3.2.1 Global Configuration

        80
      • 5.3.2.2 SPI Master User Module

        81
      • 5.3.2.3 USB Device User Module

        81
      • 5.3.2.4 1 Millisecond Interval Timer User Module

        81
      • 5.3.2.5 Flash Security

        81
    • 5.3.3 Model

      82
    • 5.3.4 Common Code

      82
      • 5.3.4.1 PSoC Generated Library Code

        82
        • 5.3.4.1.1 USB include (USB_1.inc)

          82
        • 5.3.4.1.2 USB HID Class Module (USB_1_cls_hid.asm)

          83
        • 5.3.4.1.3 1 Millisecond Interval Timer Interrupt Module (MSTIMER.asm)

          83
      • 5.3.4.2 Flash

        83
      • 5.3.4.3 Timer

        83
      • 5.3.4.4 Radio Driver

        83
      • 5.3.4.5 Master Protocol

        83
    • 5.3.5 Application Code

      83
      • 5.3.5.1 Bridge Module

        83
        • 5.3.5.1.1 Check the USB Idle Timer

          83
        • 5.3.5.1.2 Check the Received Packet

          84
        • 5.3.5.1.3 Check the Bind Button

          84
        • 5.3.5.1.4 Check the USB Suspend

          84
      • 5.3.5.2 USB Module

        84
      • 5.3.5.3 Mfgtest Module

        84
      • 5.3.5.4 Encrypt Module

        84
    • 5.3.6 Configuration Options

      85
      • 5.3.6.1 MFG_TEST_CODE

        85
      • 5.3.6.2 MFG_TX_MODES

        85
      • 5.3.6.3 MFG_ENTER_BY_PIN

        85
      • 5.3.6.4 MFG_ENTER_BY_BUTTON

        85
      • 5.3.6.5 MFG_ENTER_BY_USBSE1

        85
      • 5.3.6.6 ENCRYPT_TEA

        85
      • 5.3.6.7 ENCRYPT_AES

        85
      • 5.3.6.8 GREEN_LED_ON_TIME

        85
      • 5.3.6.9 DOWNKEY_TIME_OUT

        85
      • 5.3.6.10 BACK_CHANNEL_SUPPORT

        86
      • 5.3.6.11 MASTER_PROTOCOL

        86
      • 5.3.6.12 PAYLOAD_LENGTH

        86
      • 5.3.6.13 POWER_BIND

        86
      • 5.3.6.14 KISS_BIND

        86
      • 5.3.6.15 RSSI_QUALIFY

        86
      • 5.3.6.16 PROMISCUOUS_MODE

        86
      • 5.3.6.17 DAL_ENABLE

        86
    • 5.3.7 Platform and Architecture Portability

      87
    • 5.3.8 Initialization

      87
    • 5.3.9 Wireless Protocol Data Payload

      87
    • 5.3.10 Suspend and Remote Wakeup

      87
    • 5.3.11 Interrupt Usage/Timing

      87
    • 5.3.12 Code Performance Analysis

      88
  • 5.4 USB Interface

    88
    • 5.4.1 USB Descriptors

      88
      • 5.4.1.1 Device/Config Descriptors

        89
      • 5.4.1.2 Keyboard HID Report Descriptor

        89
      • 5.4.1.3 Mouse/Keyboard HID Report Descriptor

        90
    • 5.4.2 Keyboard Report Format

      93
    • 5.4.3 Mouse Report Format

      95
    • 5.4.4 Battery Level and Link Quality Reports

      95
      • 5.4.4.1 Requesting a New Battery Reading

        96
      • 5.4.4.2 Obtaining the RadioParams Report

        96
    • 5.4.5 Example USB Bus Analyzer (CATC) Traces

      97
  • 5.5 Development and Debug Environment

    100
    • 5.5.1 Tools

      100
    • 5.5.2 Tips and Tricks

      100
• 6. Manufacturing Test Support, MTK

  101
  • 6.1 Introduction

    101
  • 6.2 MTK Block Diagram

    101
  • 6.3 MTK Serial Protocol

    101
  • 6.4 MTK RF Protocol

    103
  • 6.5 MTK DUT Source Code Porting

    103
  • 6.6 Accessing MTK in the DUT

    103
• 7. Regulatory Testing Results

  105
  • 7.1 Introduction

    105
• 8. Power Considerations

  107
  • 8.1 RDK Keyboard

    107
    • 8.1.1 Usage Model

      107
    • 8.1.2 Current Measurements

      107
    • 8.1.3 Battery Life Calculations

      108
  • 8.2 RDK Mouse

    108
    • 8.2.1 Usage Model

      108
    • 8.2.2 Current Measurements

      109
    • 8.2.3 Battery Life Calculations

      109
• 9. Software Guide

  111
  • 9.1 Introduction

    111
  • 9.2 Software Code Modules

    111
    • 9.2.1 USB HID API module

      111
      • 9.2.1.1 CHidDevice Class Methods

        112
      • 9.2.1.2 CHidManager Class Methods

        113
    • 9.2.2 System Tray Module

      114
      • 9.2.2.1 CCySysTray Class Methods

        114
    • 9.2.3 WirelessUSB System Tray Application Module

      115
      • 9.2.3.1 CWirelessUSBTrayApp Class Methods

        115
      • 9.2.3.2 CMainFrame Class Methods

        116
      • 9.2.3.3 CWirelessUSBStatusPropertyPage Class Methods

        117
      • 9.2.3.4 CWirelessUSBStatusPropertySheet Class Methods

        117
      • 9.2.3.5 CHidTrayDevice Class Methods

        118
      • 9.2.3.6 CHidTrayManager Class Methods

        118
  • 9.3 Development Environment

    118
• Appendix A. References

  119
• Index

  121
• Revision History

  125