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6 CY4672 Reference Design Guide, Document # 001-16968 Revision **
Contents
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
4.3.10 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
5.3.4.2 Flash................................................................................................83
5.3.4.3 Timer ...............................................................................................83
5.3.4.4 Radio Driver.....................................................................................83
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