longway630 发表于 2016-12-8 13:26 问题解决了，自己写的有问题，iic接收确实好多数据，时间长了点。也要看看spi搞下了 ... 我也是读了0xff 能不能教教我
refer to hid spec 8.3*/ Table 12: Keyboard/Keypad Page Usage ID (Dec) Usage ID (Hex) Usage Name Ref: Typical AT-101 Position PC-AT Mac UNI X Boot 0 00 Reserved (no event indicated)9 N/A √ √ √ 4/101/104 1 01 Keyboard ErrorRollOver9 N/A √ √ √ 4/101/104 2 02 Keyboard POSTFail9 N/A √ √ √ 4/101/104 3 03 Keyboard ErrorUndefined9 N/A √ √ √ 4/101/104 4 04 Keyboard a and A4 31 √ √ √ 4/101/104 5 05 Keyboard b and B 50 √ √ √ 4/101/104 6 06 Keyboard c and C4 48 √ √ √ 4/101/104 7 07 Keyboard d and D 33 √ √ √ 4/101/104 8 08 Keyboard e and E 19 √ √ √ 4/101/104 9 09 Keyboard f and F 34 √ √ √ 4/101/104 10 0A Keyboard g and G 35 √ √ √ 4/101/104 11 0B Keyboard h and H 36 √ √ √ 4/101/104 12 0C Keyboard i and I 24 √ √ √ 4/101/104 13 0D Keyboard j and J 37 √ √ √ 4/101/104 14 0E Keyboard k and K 38 √ √ √ 4/101/104 15 0F Keyboard l and L 39 √ √ √ 4/101/104 16 10 Keyboard m and M4 52 √ √ √ 4/101/104 17 11 Keyboard n and N 51 √ √ √ 4/101/104 18 12 Keyboard o and O4 25 √ √ √ 4/101/104 19 13 Keyboard p and P4 26 √ √ √ 4/101/104 20 14 Keyboard q and Q4 17 √ √ √ 4/101/104 21 15 Keyboard r and R 20 √ √ √ 4/101/104 22 16 Keyboard s and S4 32 √ √ √ 4/101/104 23 17 Keyboard t and T 21 √ √ √ 4/101/104 24 18 Keyboard u and U 23 √ √ √ 4/101/104 25 19 Keyboard v and V 49 √ √ √ 4/101/104 26 1A Keyboard w and W4 18 √ √ √ 4/101/104 27 1B Keyboard x and X4 47 √ √ √ 4/101/104 28 1C Keyboard y and Y4 22 √ √ √ 4/101/104 29 1D Keyboard z and Z4 46 √ √ √ 4/101/104 30 1E Keyboard 1 and !4 2 √ √ √ 4/101/104 31 1F Keyboard 2 and @4 3 √ √ √ 4/101/104 32 20 Keyboard 3 and #4 4 √ √ √ 4/101/104 33 21 Keyboard 4 and $4 5 √ √ √ 4/101/104 34 22 Keyboard 5 and %4 6 √ √ √ 4/101/104 35 23 Keyboard 6 and ^4 7 √ √ √ 4/101/104 36 24 Keyboard 7 and &4 8 √ √ √ 4/101/104 37 25 Keyboard 8 and *4 9 √ √ √ 4/101/104 38 26 Keyboard 9 and (4 10 √ √ √ 4/101/104 39 27 Keyboard 0 and )4 11 √ √ √ 4/101/104 40 28 Keyboard Return (ENTER)5 43 √ √ √ 4/101/104 41 29 Keyboard ESCAPE 110 √ √ √ 4/101/104 42 2A Keyboard DELETE (Backspace)13 15 √ √ √ 4/101/104 43 2B Keyboard Tab 16 √ √ √ 4/101/104 44 2C Keyboard Spacebar 61 √ √ √ 4/101/104 45 2D Keyboard - and (underscore)4 12 √ √ √ 4/101/104 46 2E Keyboard = and +4 13 √ √ √ 4/101/104 47 2F Keyboard [ and {4 27 √ √ √ 4/101/104 48 30 Keyboard ] and }4 28 √ √ √ 4/101/104 49 31 Keyboard \ and | 29 √ √ √ 4/101/104 50 32 Keyboard Non-US # and ~2 42 √ √ √ 4/101/104 51 33 Keyboard ; and :4 40 √ √ √ 4/101/104 52 34 Keyboard ‘ and “4 41 √ √ √ 4/101/104 53 35 Keyboard Grave Accent and Tilde4 1 √ √ √ 4/101/104 54 36 Keyboard, and <4 53 √ √ √ 4/101/104 55 37 Keyboard . and >4 54 √ √ √ 4/101/104 56 38 Keyboard / and ?4 55 √ √ √ 4/101/104 57 39 Keyboard Caps Lock11 30 √ √ √ 4/101/104 58 3A Keyboard F1 112 √ √ √ 4/101/104 59 3B Keyboard F2 113 √ √ √ 4/101/104 60 3C Keyboard F3 114 √ √ √ 4/101/104 61 3D Keyboard F4 115 √ √ √ 4/101/104 62 3E Keyboard F5 116 √ √ √ 4/101/104 63 3F Keyboard F6 117 √ √ √ 4/101/104 64 40 Keyboard F7 118 √ √ √ 4/101/104 65 41 Keyboard F8 119 √ √ √ 4/101/104 66 42 Keyboard F9 120 √ √ √ 4/101/104 67 43 Keyboard F10 121 √ √ √ 4/101/104 68 44 Keyboard F11 122 √ √ √ 101/104 69 45 Keyboard F12 123 √ √ √ 101/104 70 46 Keyboard PrintScreen1 124 √ √ √ 101/104 71 47 Keyboard Scroll Lock11 125 √ √ √ 4/101/104 72 48 Keyboard Pause1 126 √ √ √ 101/104 73 49 Keyboard Insert1 75 √ √ √ 101/104 74 4A Keyboard Home1 80 √ √ √ 101/104 75 4B Keyboard PageUp1 85 √ √ √ 101/104 76 4C Keyboard Delete Forward1;14 76 √ √ √ 101/104 77 4D Keyboard End1 81 √ √ √ 101/104 78 4E Keyboard PageDown1 86 √ √ √ 101/104 79 4F Keyboard RightArrow1 89 √ √ √ 101/104 80 50 Keyboard LeftArrow1 79 √ √ √ 101/104 81 51 Keyboard DownArrow1 84 √ √ √ 101/104 82 52 Keyboard UpArrow1 83 √ √ √ 101/104 83 53 Keypad Num Lock and Clear11 90 √ √ √ 101/104 84 54 Keypad /1 95 √ √ √ 101/104 85 55 Keypad * 100 √ √ √ 4/101/104 86 56 Keypad - 105 √ √ √ 4/101/104 87 57 Keypad + 106 √ √ √ 4/101/104 88 58 Keypad ENTER5 108 √ √ √ 101/104 89 59 Keypad 1 and End 93 √ √ √ 4/101/104 90 5A Keypad 2 and Down Arrow 98 √ √ √ 4/101/104 91 5B Keypad 3 and PageDn 103 √ √ √ 4/101/104 92 5C Keypad 4 and Left Arrow 92 √ √ √ 4/101/104 93 5D Keypad 5 97 √ √ √ 4/101/104 94 5E Keypad 6 and Right Arrow 102 √ √ √ 4/101/104 95 5F Keypad 7 and Home 91 √ √ √ 4/101/104 96 60 Keypad 8 and Up Arrow 96 √ √ √ 4/101/104 97 61 Keypad 9 and PageUp 101 √ √ √ 4/101/104 98 62 Keypad 0 and Insert 99 √ √ √ 4/101/104 99 63 Keypad . and Delete 104 √ √ √ 4/101/104 100 64 Keyboard Non-US \ and |3;6 45 √ √ √ 4/101/104 101 65 Keyboard Application10 129 √ √ 104 102 66 Keyboard Power9 √ √ 103 67 Keypad = √ 104 68 Keyboard F13 √ 105 69 Keyboard F14 √ 106 6A Keyboard F15 √ 107 6B Keyboard F16 108 6C Keyboard F17 109 6D Keyboard F18 110 6E Keyboard F19 111 6F Keyboard F20 112 70 Keyboard F21 113 71 Keyboard F22 114 72 Keyboard F23 115 73 Keyboard F24 116 74 Keyboard Execute √ 117 75 Keyboard Help √ 118 76 Keyboard Menu √ 119 77 Keyboard Select √ 120 78 Keyboard Stop √ 121 79 Keyboard Again √ 122 7A Keyboard Undo √ 123 7B Keyboard Cut √ 124 7C Keyboard Copy √ 125 7D Keyboard Paste √ 126 7E Keyboard Find √ 127 7F Keyboard Mute √ 128 80 Keyboard Volume Up √ 129 81 Keyboard Volume Down √ 130 82 Keyboard Locking Caps Lock12 √ 131 83 Keyboard Locking Num Lock12 √ 132 84 Keyboard Locking Scroll Lock12 √ 133 85 Keypad Comma27 107 134 86 Keypad Equal Sign29 135 87 Keyboard International115,28 56 136 88 Keyboard International216 137 89 Keyboard International317 138 8A Keyboard International418 139 8B Keyboard International519 140 8C Keyboard International620 141 8D Keyboard International721 142 8E Keyboard International822 143 8F Keyboard International922 144 90 Keyboard LANG125 145 91 Keyboard LANG226 146 92 Keyboard LANG330 147 93 Keyboard LANG431 148 94 Keyboard LANG532 149 95 Keyboard LANG68 150 96 Keyboard LANG78 151 97 Keyboard LANG88 152 98 Keyboard LANG98 153 99 Keyboard Alternate Erase7 154 9A Keyboard SysReq/Attention1 155 9B Keyboard Cancel 156 9C Keyboard Clear 157 9D Keyboard Prior 158 9E Keyboard Return 159 9F Keyboard Separator 160 A0 Keyboard Out 161 A1 Keyboard Oper 162 A2 Keyboard Clear/Again 163 A3 Keyboard CrSel/Props 164 A4 Keyboard ExSel 165-175 A5-CF Reserved 176 B0 Keypad 00 177 B1 Keypad 000 178 B2 Thousands Separator 33 179 B3 Decimal Separator 33 180 B4 Currency Unit 34 181 B5 Currency Sub-unit 34 182 B6 Keypad ( 183 B7 Keypad ) 184 B8 Keypad { 185 B9 Keypad } 186 BA Keypad Tab 187 BB Keypad Backspace 188 BC Keypad A 189 BD Keypad B 190 BE Keypad C 191 BF Keypad D 192 C0 Keypad E 193 C1 Keypad F 194 C2 Keypad XOR 195 C3 Keypad ^ 196 C4 Keypad % 197 C5 Keypad < 198 C6 Keypad > 199 C7 Keypad & 200 C8 Keypad && 201 C9 Keypad | 202 CA Keypad || 203 CB Keypad : 204 CC Keypad # 205 CD Keypad Space 206 CE Keypad @ 207 CF Keypad ! 208 D0 Keypad Memory Store 209 D1 Keypad Memory Recall 210 D2 Keypad Memory Clear 211 D3 Keypad Memory Add 212 D4 Keypad Memory Subtract 213 D5 Keypad Memory Multiply 214 D6 Keypad Memory Divide 215 D7 Keypad +/- 216 D8 Keypad Clear 217 D9 Keypad Clear Entry 218 DA Keypad Binary 219 DB Keypad Octal 220 DC Keypad Decimal 221 DD Keypad Hexadecimal 222-223 DE-DF Reserved 224 E0 Keyboard LeftControl 58 √ √ √ 4/101/104 225 E1 Keyboard LeftShift 44 √ √ √ 4/101/104 226 E2 Keyboard LeftAlt 60 √ √ √ 4/101/104 227 E3 Keyboard Left GUI10;23 127 √ √ √ 104 228 E4 Keyboard RightControl 64 √ √ √ 101/104 229 E5 Keyboard RightShift 57 √ √ √ 4/101/104 230 E6 Keyboard RightAlt 62 √ √ √ 101/104 231 E7 Keyboard Right GUI10;24 128 √ √ √ 104 232-65535 E8-FFFF Reserved
