ceri clatworthy
ADC Niose test Connect four analog signals to your MBED. and then run the Windows app. The four traces are displayed on an oscilloscope like display. I have used a USB HID DEVICE link, so connections to D+, D- are required. The MBED code is otherwise quite basic, So you can modify it to your own test needs. Additionaly, there is a 16 bit count value, in my MBED code Mainly to test if MSB & LSB are correct.
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USBKeyboard.cpp
00001 // USBKeyboard.c 00002 // USB device example: Standard keyboard 00003 // Copyright (c) 2011 ARM Limited. All rights reserved. 00004 00005 #include "stdint.h" 00006 00007 #include "USBKeyboard.h" 00008 00009 #define REPORT_ID_KEYBOARD 1 00010 #define REPORT_ID_VOLUME 3 00011 00012 /* Modifiers */ 00013 enum MODIFIER_KEY 00014 { 00015 KEY_CTRL = 1, 00016 KEY_SHIFT = 2, 00017 KEY_ALT = 4, 00018 }; 00019 00020 typedef struct { 00021 unsigned char usage; 00022 unsigned char modifier; 00023 } KEYMAP; 00024 00025 #ifdef US_KEYBOARD 00026 /* US keyboard (as HID standard) */ 00027 #define KEYMAP_SIZE (145) 00028 const KEYMAP keymap[KEYMAP_SIZE] = { 00029 {0, 0}, /* NUL */ 00030 {0, 0}, /* SOH */ 00031 {0, 0}, /* STX */ 00032 {0, 0}, /* ETX */ 00033 {0, 0}, /* EOT */ 00034 {0, 0}, /* ENQ */ 00035 {0, 0}, /* ACK */ 00036 {0, 0}, /* BEL */ 00037 {0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */ 00038 {0x2b, 0}, /* TAB */ /* Keyboard Tab */ 00039 {0x28, 0}, /* LF */ /* Keyboard Return (Enter) */ 00040 {0, 0}, /* VT */ 00041 {0, 0}, /* FF */ 00042 {0, 0}, /* CR */ 00043 {0, 0}, /* SO */ 00044 {0, 0}, /* SI */ 00045 {0, 0}, /* DEL */ 00046 {0, 0}, /* DC1 */ 00047 {0, 0}, /* DC2 */ 00048 {0, 0}, /* DC3 */ 00049 {0, 0}, /* DC4 */ 00050 {0, 0}, /* NAK */ 00051 {0, 0}, /* SYN */ 00052 {0, 0}, /* ETB */ 00053 {0, 0}, /* CAN */ 00054 {0, 0}, /* EM */ 00055 {0, 0}, /* SUB */ 00056 {0, 0}, /* ESC */ 00057 {0, 0}, /* FS */ 00058 {0, 0}, /* GS */ 00059 {0, 0}, /* RS */ 00060 {0, 0}, /* US */ 00061 {0x2c, 0}, /* */ 00062 {0x1e, KEY_SHIFT}, /* ! */ 00063 {0x34, KEY_SHIFT}, /* " */ 00064 {0x20, KEY_SHIFT}, /* # */ 00065 {0x21, KEY_SHIFT}, /* $ */ 00066 {0x22, KEY_SHIFT}, /* % */ 00067 {0x24, KEY_SHIFT}, /* & */ 00068 {0x34, 0}, /* ' */ 00069 {0x26, KEY_SHIFT}, /* ( */ 00070 {0x27, KEY_SHIFT}, /* ) */ 00071 {0x25, KEY_SHIFT}, /* * */ 00072 {0x2e, KEY_SHIFT}, /* + */ 00073 {0x36, 0}, /* , */ 00074 {0x2d, 0}, /* - */ 00075 {0x37, 0}, /* . */ 00076 {0x38, 0}, /* / */ 00077 {0x27, 0}, /* 0 */ 00078 {0x1e, 0}, /* 1 */ 00079 {0x1f, 0}, /* 2 */ 00080 {0x20, 0}, /* 3 */ 00081 {0x21, 0}, /* 4 */ 00082 {0x22, 0}, /* 5 */ 00083 {0x23, 0}, /* 6 */ 00084 {0x24, 0}, /* 7 */ 00085 {0x25, 0}, /* 8 */ 00086 {0x26, 0}, /* 9 */ 00087 {0x33, KEY_SHIFT}, /* : */ 00088 {0x33, 0}, /* ; */ 00089 {0x36, KEY_SHIFT}, /* < */ 00090 {0x2e, 0}, /* = */ 00091 {0x37, KEY_SHIFT}, /* > */ 00092 {0x38, KEY_SHIFT}, /* ? */ 00093 {0x1f, KEY_SHIFT}, /* @ */ 00094 {0x04, KEY_SHIFT}, /* A */ 00095 {0x05, KEY_SHIFT}, /* B */ 00096 {0x06, KEY_SHIFT}, /* C */ 00097 {0x07, KEY_SHIFT}, /* D */ 00098 {0x08, KEY_SHIFT}, /* E */ 00099 {0x09, KEY_SHIFT}, /* F */ 00100 {0x0a, KEY_SHIFT}, /* G */ 00101 {0x0b, KEY_SHIFT}, /* H */ 00102 {0x0c, KEY_SHIFT}, /* I */ 00103 {0x0d, KEY_SHIFT}, /* J */ 00104 {0x0e, KEY_SHIFT}, /* K */ 00105 {0x0f, KEY_SHIFT}, /* L */ 00106 {0x10, KEY_SHIFT}, /* M */ 00107 {0x11, KEY_SHIFT}, /* N */ 00108 {0x12, KEY_SHIFT}, /* O */ 00109 {0x13, KEY_SHIFT}, /* P */ 00110 {0x14, KEY_SHIFT}, /* Q */ 00111 {0x15, KEY_SHIFT}, /* R */ 00112 {0x16, KEY_SHIFT}, /* S */ 00113 {0x17, KEY_SHIFT}, /* T */ 00114 {0x18, KEY_SHIFT}, /* U */ 00115 {0x19, KEY_SHIFT}, /* V */ 00116 {0x1a, KEY_SHIFT}, /* W */ 00117 {0x1b, KEY_SHIFT}, /* X */ 00118 {0x1c, KEY_SHIFT}, /* Y */ 00119 {0x1d, KEY_SHIFT}, /* Z */ 00120 {0x2f, 0}, /* [ */ 00121 {0x31, 0}, /* \ */ 00122 {0x30, 0}, /* ] */ 00123 {0x23, KEY_SHIFT}, /* ^ */ 00124 {0x2d, KEY_SHIFT}, /* _ */ 00125 {0x35, 0}, /* ` */ 00126 {0x04, 0}, /* a */ 00127 {0x05, 0}, /* b */ 00128 {0x06, 0}, /* c */ 00129 {0x07, 0}, /* d */ 00130 {0x08, 0}, /* e */ 00131 {0x09, 0}, /* f */ 00132 {0x0a, 0}, /* g */ 00133 {0x0b, 0}, /* h */ 00134 {0x0c, 0}, /* i */ 00135 {0x0d, 0}, /* j */ 00136 {0x0e, 0}, /* k */ 00137 {0x0f, 0}, /* l */ 00138 {0x10, 0}, /* m */ 00139 {0x11, 0}, /* n */ 00140 {0x12, 0}, /* o */ 00141 {0x13, 0}, /* p */ 00142 {0x14, 0}, /* q */ 00143 {0x15, 0}, /* r */ 00144 {0x16, 0}, /* s */ 00145 {0x17, 0}, /* t */ 00146 {0x18, 0}, /* u */ 00147 {0x19, 0}, /* v */ 00148 {0x1a, 0}, /* w */ 00149 {0x1b, 0}, /* x */ 00150 {0x1c, 0}, /* y */ 00151 {0x1d, 0}, /* z */ 00152 {0x2f, KEY_SHIFT}, /* { */ 00153 {0x31, KEY_SHIFT}, /* | */ 00154 {0x30, KEY_SHIFT}, /* } */ 00155 {0x35, KEY_SHIFT}, /* ~ */ 00156 {0,0}, /* DEL */ 00157 00158 {0x3a, 0}, /* F1 */ 00159 {0x3b, 0}, /* F2 */ 00160 {0x3c, 0}, /* F3 */ 00161 {0x3d, 0}, /* F4 */ 00162 {0x3e, 0}, /* F5 */ 00163 {0x3f, 0}, /* F6 */ 00164 {0x40, 0}, /* F7 */ 00165 {0x41, 0}, /* F8 */ 00166 {0x42, 0}, /* F9 */ 00167 {0x43, 0}, /* F10 */ 00168 {0x44, 0}, /* F11 */ 00169 {0x45, 0}, /* F12 */ 00170 00171 {0x46, 0}, /* PRINT_SCREEN */ 00172 {0x49, 0}, /* INSERT */ 00173 {0x4a, 0}, /* HOME */ 00174 {0x4b, 0}, /* PAGE_UP */ 00175 {0x4e, 0}, /* PAGE_DOWN */ 00176 }; 00177 00178 #else 00179 /* UK keyboard */ 00180 #define KEYMAP_SIZE (145) 00181 const KEYMAP keymap[KEYMAP_SIZE] = { 00182 {0, 0}, /* NUL */ 00183 {0, 0}, /* SOH */ 00184 {0, 0}, /* STX */ 00185 {0, 0}, /* ETX */ 00186 {0, 0}, /* EOT */ 00187 {0, 0}, /* ENQ */ 00188 {0, 0}, /* ACK */ 00189 {0, 0}, /* BEL */ 00190 {0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */ 00191 {0x2b, 0}, /* TAB */ /* Keyboard Tab */ 00192 {0x28, 0}, /* LF */ /* Keyboard Return (Enter) */ 00193 {0, 0}, /* VT */ 00194 {0, 0}, /* FF */ 00195 {0, 0}, /* CR */ 00196 {0, 0}, /* SO */ 00197 {0, 0}, /* SI */ 00198 {0, 0}, /* DEL */ 00199 {0, 0}, /* DC1 */ 00200 {0, 0}, /* DC2 */ 00201 {0, 0}, /* DC3 */ 00202 {0, 0}, /* DC4 */ 00203 {0, 0}, /* NAK */ 00204 {0, 0}, /* SYN */ 00205 {0, 0}, /* ETB */ 00206 {0, 0}, /* CAN */ 00207 {0, 0}, /* EM */ 00208 {0, 0}, /* SUB */ 00209 {0, 0}, /* ESC */ 00210 {0, 0}, /* FS */ 00211 {0, 0}, /* GS */ 00212 {0, 0}, /* RS */ 00213 {0, 0}, /* US */ 00214 {0x2c, 0}, /* */ 00215 {0x1e, KEY_SHIFT}, /* ! */ 00216 {0x1f, KEY_SHIFT}, /* " */ 00217 {0x32, 0}, /* # */ 00218 {0x21, KEY_SHIFT}, /* $ */ 00219 {0x22, KEY_SHIFT}, /* % */ 00220 {0x24, KEY_SHIFT}, /* & */ 00221 {0x34, 0}, /* ' */ 00222 {0x26, KEY_SHIFT}, /* ( */ 00223 {0x27, KEY_SHIFT}, /* ) */ 00224 {0x25, KEY_SHIFT}, /* * */ 00225 {0x2e, KEY_SHIFT}, /* + */ 00226 {0x36, 0}, /* , */ 00227 {0x2d, 0}, /* - */ 00228 {0x37, 0}, /* . */ 00229 {0x38, 0}, /* / */ 00230 {0x27, 0}, /* 0 */ 00231 {0x1e, 0}, /* 1 */ 00232 {0x1f, 0}, /* 2 */ 00233 {0x20, 0}, /* 3 */ 00234 {0x21, 0}, /* 4 */ 00235 {0x22, 0}, /* 5 */ 00236 {0x23, 0}, /* 6 */ 00237 {0x24, 0}, /* 7 */ 00238 {0x25, 0}, /* 8 */ 00239 {0x26, 0}, /* 9 */ 00240 {0x33, KEY_SHIFT}, /* : */ 00241 {0x33, 0}, /* ; */ 00242 {0x36, KEY_SHIFT}, /* < */ 00243 {0x2e, 0}, /* = */ 00244 {0x37, KEY_SHIFT}, /* > */ 00245 {0x38, KEY_SHIFT}, /* ? */ 00246 {0x34, KEY_SHIFT}, /* @ */ 00247 {0x04, KEY_SHIFT}, /* A */ 00248 {0x05, KEY_SHIFT}, /* B */ 00249 {0x06, KEY_SHIFT}, /* C */ 00250 {0x07, KEY_SHIFT}, /* D */ 00251 {0x08, KEY_SHIFT}, /* E */ 00252 {0x09, KEY_SHIFT}, /* F */ 00253 {0x0a, KEY_SHIFT}, /* G */ 00254 {0x0b, KEY_SHIFT}, /* H */ 00255 {0x0c, KEY_SHIFT}, /* I */ 00256 {0x0d, KEY_SHIFT}, /* J */ 00257 {0x0e, KEY_SHIFT}, /* K */ 00258 {0x0f, KEY_SHIFT}, /* L */ 00259 {0x10, KEY_SHIFT}, /* M */ 00260 {0x11, KEY_SHIFT}, /* N */ 00261 {0x12, KEY_SHIFT}, /* O */ 00262 {0x13, KEY_SHIFT}, /* P */ 00263 {0x14, KEY_SHIFT}, /* Q */ 00264 {0x15, KEY_SHIFT}, /* R */ 00265 {0x16, KEY_SHIFT}, /* S */ 00266 {0x17, KEY_SHIFT}, /* T */ 00267 {0x18, KEY_SHIFT}, /* U */ 00268 {0x19, KEY_SHIFT}, /* V */ 00269 {0x1a, KEY_SHIFT}, /* W */ 00270 {0x1b, KEY_SHIFT}, /* X */ 00271 {0x1c, KEY_SHIFT}, /* Y */ 00272 {0x1d, KEY_SHIFT}, /* Z */ 00273 {0x2f, 0}, /* [ */ 00274 {0x64, 0}, /* \ */ 00275 {0x30, 0}, /* ] */ 00276 {0x23, KEY_SHIFT}, /* ^ */ 00277 {0x2d, KEY_SHIFT}, /* _ */ 00278 {0x35, 0}, /* ` */ 00279 {0x04, 0}, /* a */ 00280 {0x05, 0}, /* b */ 00281 {0x06, 0}, /* c */ 00282 {0x07, 0}, /* d */ 00283 {0x08, 0}, /* e */ 00284 {0x09, 0}, /* f */ 00285 {0x0a, 0}, /* g */ 00286 {0x0b, 0}, /* h */ 00287 {0x0c, 0}, /* i */ 00288 {0x0d, 0}, /* j */ 00289 {0x0e, 0}, /* k */ 00290 {0x0f, 0}, /* l */ 00291 {0x10, 0}, /* m */ 00292 {0x11, 0}, /* n */ 00293 {0x12, 0}, /* o */ 00294 {0x13, 0}, /* p */ 00295 {0x14, 0}, /* q */ 00296 {0x15, 0}, /* r */ 00297 {0x16, 0}, /* s */ 00298 {0x17, 0}, /* t */ 00299 {0x18, 0}, /* u */ 00300 {0x19, 0}, /* v */ 00301 {0x1a, 0}, /* w */ 00302 {0x1b, 0}, /* x */ 00303 {0x1c, 0}, /* y */ 00304 {0x1d, 0}, /* z */ 00305 {0x2f, KEY_SHIFT}, /* { */ 00306 {0x64, KEY_SHIFT}, /* | */ 00307 {0x30, KEY_SHIFT}, /* } */ 00308 {0x32, KEY_SHIFT}, /* ~ */ 00309 {0,0}, /* DEL */ 00310 00311 {0x3a, 0}, /* F1 */ 00312 {0x3b, 0}, /* F2 */ 00313 {0x3c, 0}, /* F3 */ 00314 {0x3d, 0}, /* F4 */ 00315 {0x3e, 0}, /* F5 */ 00316 {0x3f, 0}, /* F6 */ 00317 {0x40, 0}, /* F7 */ 00318 {0x41, 0}, /* F8 */ 00319 {0x42, 0}, /* F9 */ 00320 {0x43, 0}, /* F10 */ 00321 {0x44, 0}, /* F11 */ 00322 {0x45, 0}, /* F12 */ 00323 00324 {0x46, 0}, /* PRINT_SCREEN */ 00325 {0x49, 0}, /* INSERT */ 00326 {0x4a, 0}, /* HOME */ 00327 {0x4b, 0}, /* PAGE_UP */ 00328 {0x4e, 0}, /* PAGE_DOWN */ 00329 }; 00330 #endif 00331 00332 uint8_t * USBKeyboard::reportDesc() { 00333 static uint8_t reportDescriptor[] = { 00334 USAGE_PAGE(1), 0x01, // Generic Desktop 00335 USAGE(1), 0x06, // Keyboard 00336 COLLECTION(1), 0x01, // Application 00337 REPORT_ID(1), REPORT_ID_KEYBOARD, 00338 00339 USAGE_PAGE(1), 0x07, // Key Codes 00340 USAGE_MINIMUM(1), 0xE0, 00341 USAGE_MAXIMUM(1), 0xE7, 00342 LOGICAL_MINIMUM(1), 0x00, 00343 LOGICAL_MAXIMUM(1), 0x01, 00344 REPORT_SIZE(1), 0x01, 00345 REPORT_COUNT(1), 0x08, 00346 INPUT(1), 0x02, // Data, Variable, Absolute 00347 REPORT_COUNT(1), 0x01, 00348 REPORT_SIZE(1), 0x08, 00349 INPUT(1), 0x01, // Constant 00350 REPORT_COUNT(1), 0x05, 00351 REPORT_SIZE(1), 0x01, 00352 00353 00354 USAGE_PAGE(1), 0x08, // LEDs 00355 USAGE_MINIMUM(1), 0x01, 00356 USAGE_MAXIMUM(1), 0x05, 00357 OUTPUT(1), 0x02, // Data, Variable, Absolute 00358 REPORT_COUNT(1), 0x01, 00359 REPORT_SIZE(1), 0x03, 00360 OUTPUT(1), 0x01, // Constant 00361 REPORT_COUNT(1), 0x06, 00362 REPORT_SIZE(1), 0x08, 00363 LOGICAL_MINIMUM(1), 0x00, 00364 LOGICAL_MAXIMUM(1), 0x65, 00365 00366 00367 USAGE_PAGE(1), 0x07, // Key Codes 00368 USAGE_MINIMUM(1), 0x00, 00369 USAGE_MAXIMUM(1), 0x65, 00370 INPUT(1), 0x00, // Data, Array 00371 END_COLLECTION(0), 00372 00373 // Media Control 00374 USAGE_PAGE(1), 0x0C, 00375 USAGE(1), 0x01, 00376 COLLECTION(1), 0x01, 00377 REPORT_ID(1), REPORT_ID_VOLUME, 00378 USAGE_PAGE(1), 0x0C, 00379 LOGICAL_MINIMUM(1), 0x00, 00380 LOGICAL_MAXIMUM(1), 0x01, 00381 REPORT_SIZE(1), 0x01, 00382 REPORT_COUNT(1), 0x07, 00383 USAGE(1), 0xB5, // Next Track 00384 USAGE(1), 0xB6, // Previous Track 00385 USAGE(1), 0xB7, // Stop 00386 USAGE(1), 0xCD, // Play / Pause 00387 USAGE(1), 0xE2, // Mute 00388 USAGE(1), 0xE9, // Volume Up 00389 USAGE(1), 0xEA, // Volume Down 00390 INPUT(1), 0x02, // Input (Data, Variable, Absolute) 00391 REPORT_COUNT(1), 0x01, 00392 INPUT(1), 0x01, 00393 END_COLLECTION(0), 00394 00395 }; 00396 reportLength = sizeof(reportDescriptor); 00397 return reportDescriptor; 00398 } 00399 00400 int USBKeyboard::_putc(int c) { 00401 return keyCode(c, keymap[c].modifier); 00402 } 00403 00404 bool USBKeyboard::keyCode(uint8_t key, uint8_t modifier) { 00405 // Send a simulated keyboard keypress. Returns true if successful. 00406 00407 HID_REPORT report; 00408 00409 report.data[0] = REPORT_ID_KEYBOARD; 00410 report.data[1] = modifier; 00411 report.data[2] = 0; 00412 report.data[3] = keymap[key].usage; 00413 report.data[4] = 0; 00414 report.data[5] = 0; 00415 report.data[6] = 0; 00416 report.data[7] = 0; 00417 report.data[8] = 0; 00418 00419 report.length = 9; 00420 00421 if (!send(&report)) { 00422 return false; 00423 } 00424 00425 report.data[1] = 0; 00426 report.data[3] = 0; 00427 00428 if (!send(&report)) { 00429 return false; 00430 } 00431 00432 return true; 00433 00434 } 00435 00436 00437 bool USBKeyboard::mediaControl(MEDIA_KEY key) { 00438 HID_REPORT report; 00439 00440 report.data[0] = REPORT_ID_VOLUME; 00441 report.data[1] = (1 << key) & 0x7f; 00442 00443 report.length = 2; 00444 00445 send(&report); 00446 00447 report.data[0] = REPORT_ID_VOLUME; 00448 report.data[1] = 0; 00449 00450 report.length = 2; 00451 00452 return send(&report); 00453 } 00454 00455
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