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.
Diff: HID/USBKeyboard.cpp
- Revision:
- 0:cbe01b678bd4
diff -r 000000000000 -r cbe01b678bd4 HID/USBKeyboard.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HID/USBKeyboard.cpp Sat Nov 19 22:54:22 2011 +0000 @@ -0,0 +1,455 @@ +// USBKeyboard.c +// USB device example: Standard keyboard +// Copyright (c) 2011 ARM Limited. All rights reserved. + +#include "stdint.h" + +#include "USBKeyboard.h" + +#define REPORT_ID_KEYBOARD 1 +#define REPORT_ID_VOLUME 3 + +/* Modifiers */ +enum MODIFIER_KEY +{ + KEY_CTRL = 1, + KEY_SHIFT = 2, + KEY_ALT = 4, +}; + +typedef struct { + unsigned char usage; + unsigned char modifier; +} KEYMAP; + +#ifdef US_KEYBOARD +/* US keyboard (as HID standard) */ +#define KEYMAP_SIZE (145) +const KEYMAP keymap[KEYMAP_SIZE] = { +{0, 0}, /* NUL */ +{0, 0}, /* SOH */ +{0, 0}, /* STX */ +{0, 0}, /* ETX */ +{0, 0}, /* EOT */ +{0, 0}, /* ENQ */ +{0, 0}, /* ACK */ +{0, 0}, /* BEL */ +{0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */ +{0x2b, 0}, /* TAB */ /* Keyboard Tab */ +{0x28, 0}, /* LF */ /* Keyboard Return (Enter) */ +{0, 0}, /* VT */ +{0, 0}, /* FF */ +{0, 0}, /* CR */ +{0, 0}, /* SO */ +{0, 0}, /* SI */ +{0, 0}, /* DEL */ +{0, 0}, /* DC1 */ +{0, 0}, /* DC2 */ +{0, 0}, /* DC3 */ +{0, 0}, /* DC4 */ +{0, 0}, /* NAK */ +{0, 0}, /* SYN */ +{0, 0}, /* ETB */ +{0, 0}, /* CAN */ +{0, 0}, /* EM */ +{0, 0}, /* SUB */ +{0, 0}, /* ESC */ +{0, 0}, /* FS */ +{0, 0}, /* GS */ +{0, 0}, /* RS */ +{0, 0}, /* US */ +{0x2c, 0}, /* */ +{0x1e, KEY_SHIFT}, /* ! */ +{0x34, KEY_SHIFT}, /* " */ +{0x20, KEY_SHIFT}, /* # */ +{0x21, KEY_SHIFT}, /* $ */ +{0x22, KEY_SHIFT}, /* % */ +{0x24, KEY_SHIFT}, /* & */ +{0x34, 0}, /* ' */ +{0x26, KEY_SHIFT}, /* ( */ +{0x27, KEY_SHIFT}, /* ) */ +{0x25, KEY_SHIFT}, /* * */ +{0x2e, KEY_SHIFT}, /* + */ +{0x36, 0}, /* , */ +{0x2d, 0}, /* - */ +{0x37, 0}, /* . */ +{0x38, 0}, /* / */ +{0x27, 0}, /* 0 */ +{0x1e, 0}, /* 1 */ +{0x1f, 0}, /* 2 */ +{0x20, 0}, /* 3 */ +{0x21, 0}, /* 4 */ +{0x22, 0}, /* 5 */ +{0x23, 0}, /* 6 */ +{0x24, 0}, /* 7 */ +{0x25, 0}, /* 8 */ +{0x26, 0}, /* 9 */ +{0x33, KEY_SHIFT}, /* : */ +{0x33, 0}, /* ; */ +{0x36, KEY_SHIFT}, /* < */ +{0x2e, 0}, /* = */ +{0x37, KEY_SHIFT}, /* > */ +{0x38, KEY_SHIFT}, /* ? */ +{0x1f, KEY_SHIFT}, /* @ */ +{0x04, KEY_SHIFT}, /* A */ +{0x05, KEY_SHIFT}, /* B */ +{0x06, KEY_SHIFT}, /* C */ +{0x07, KEY_SHIFT}, /* D */ +{0x08, KEY_SHIFT}, /* E */ +{0x09, KEY_SHIFT}, /* F */ +{0x0a, KEY_SHIFT}, /* G */ +{0x0b, KEY_SHIFT}, /* H */ +{0x0c, KEY_SHIFT}, /* I */ +{0x0d, KEY_SHIFT}, /* J */ +{0x0e, KEY_SHIFT}, /* K */ +{0x0f, KEY_SHIFT}, /* L */ +{0x10, KEY_SHIFT}, /* M */ +{0x11, KEY_SHIFT}, /* N */ +{0x12, KEY_SHIFT}, /* O */ +{0x13, KEY_SHIFT}, /* P */ +{0x14, KEY_SHIFT}, /* Q */ +{0x15, KEY_SHIFT}, /* R */ +{0x16, KEY_SHIFT}, /* S */ +{0x17, KEY_SHIFT}, /* T */ +{0x18, KEY_SHIFT}, /* U */ +{0x19, KEY_SHIFT}, /* V */ +{0x1a, KEY_SHIFT}, /* W */ +{0x1b, KEY_SHIFT}, /* X */ +{0x1c, KEY_SHIFT}, /* Y */ +{0x1d, KEY_SHIFT}, /* Z */ +{0x2f, 0}, /* [ */ +{0x31, 0}, /* \ */ +{0x30, 0}, /* ] */ +{0x23, KEY_SHIFT}, /* ^ */ +{0x2d, KEY_SHIFT}, /* _ */ +{0x35, 0}, /* ` */ +{0x04, 0}, /* a */ +{0x05, 0}, /* b */ +{0x06, 0}, /* c */ +{0x07, 0}, /* d */ +{0x08, 0}, /* e */ +{0x09, 0}, /* f */ +{0x0a, 0}, /* g */ +{0x0b, 0}, /* h */ +{0x0c, 0}, /* i */ +{0x0d, 0}, /* j */ +{0x0e, 0}, /* k */ +{0x0f, 0}, /* l */ +{0x10, 0}, /* m */ +{0x11, 0}, /* n */ +{0x12, 0}, /* o */ +{0x13, 0}, /* p */ +{0x14, 0}, /* q */ +{0x15, 0}, /* r */ +{0x16, 0}, /* s */ +{0x17, 0}, /* t */ +{0x18, 0}, /* u */ +{0x19, 0}, /* v */ +{0x1a, 0}, /* w */ +{0x1b, 0}, /* x */ +{0x1c, 0}, /* y */ +{0x1d, 0}, /* z */ +{0x2f, KEY_SHIFT}, /* { */ +{0x31, KEY_SHIFT}, /* | */ +{0x30, KEY_SHIFT}, /* } */ +{0x35, KEY_SHIFT}, /* ~ */ +{0,0}, /* DEL */ + +{0x3a, 0}, /* F1 */ +{0x3b, 0}, /* F2 */ +{0x3c, 0}, /* F3 */ +{0x3d, 0}, /* F4 */ +{0x3e, 0}, /* F5 */ +{0x3f, 0}, /* F6 */ +{0x40, 0}, /* F7 */ +{0x41, 0}, /* F8 */ +{0x42, 0}, /* F9 */ +{0x43, 0}, /* F10 */ +{0x44, 0}, /* F11 */ +{0x45, 0}, /* F12 */ + +{0x46, 0}, /* PRINT_SCREEN */ +{0x49, 0}, /* INSERT */ +{0x4a, 0}, /* HOME */ +{0x4b, 0}, /* PAGE_UP */ +{0x4e, 0}, /* PAGE_DOWN */ +}; + +#else +/* UK keyboard */ +#define KEYMAP_SIZE (145) +const KEYMAP keymap[KEYMAP_SIZE] = { +{0, 0}, /* NUL */ +{0, 0}, /* SOH */ +{0, 0}, /* STX */ +{0, 0}, /* ETX */ +{0, 0}, /* EOT */ +{0, 0}, /* ENQ */ +{0, 0}, /* ACK */ +{0, 0}, /* BEL */ +{0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */ +{0x2b, 0}, /* TAB */ /* Keyboard Tab */ +{0x28, 0}, /* LF */ /* Keyboard Return (Enter) */ +{0, 0}, /* VT */ +{0, 0}, /* FF */ +{0, 0}, /* CR */ +{0, 0}, /* SO */ +{0, 0}, /* SI */ +{0, 0}, /* DEL */ +{0, 0}, /* DC1 */ +{0, 0}, /* DC2 */ +{0, 0}, /* DC3 */ +{0, 0}, /* DC4 */ +{0, 0}, /* NAK */ +{0, 0}, /* SYN */ +{0, 0}, /* ETB */ +{0, 0}, /* CAN */ +{0, 0}, /* EM */ +{0, 0}, /* SUB */ +{0, 0}, /* ESC */ +{0, 0}, /* FS */ +{0, 0}, /* GS */ +{0, 0}, /* RS */ +{0, 0}, /* US */ +{0x2c, 0}, /* */ +{0x1e, KEY_SHIFT}, /* ! */ +{0x1f, KEY_SHIFT}, /* " */ +{0x32, 0}, /* # */ +{0x21, KEY_SHIFT}, /* $ */ +{0x22, KEY_SHIFT}, /* % */ +{0x24, KEY_SHIFT}, /* & */ +{0x34, 0}, /* ' */ +{0x26, KEY_SHIFT}, /* ( */ +{0x27, KEY_SHIFT}, /* ) */ +{0x25, KEY_SHIFT}, /* * */ +{0x2e, KEY_SHIFT}, /* + */ +{0x36, 0}, /* , */ +{0x2d, 0}, /* - */ +{0x37, 0}, /* . */ +{0x38, 0}, /* / */ +{0x27, 0}, /* 0 */ +{0x1e, 0}, /* 1 */ +{0x1f, 0}, /* 2 */ +{0x20, 0}, /* 3 */ +{0x21, 0}, /* 4 */ +{0x22, 0}, /* 5 */ +{0x23, 0}, /* 6 */ +{0x24, 0}, /* 7 */ +{0x25, 0}, /* 8 */ +{0x26, 0}, /* 9 */ +{0x33, KEY_SHIFT}, /* : */ +{0x33, 0}, /* ; */ +{0x36, KEY_SHIFT}, /* < */ +{0x2e, 0}, /* = */ +{0x37, KEY_SHIFT}, /* > */ +{0x38, KEY_SHIFT}, /* ? */ +{0x34, KEY_SHIFT}, /* @ */ +{0x04, KEY_SHIFT}, /* A */ +{0x05, KEY_SHIFT}, /* B */ +{0x06, KEY_SHIFT}, /* C */ +{0x07, KEY_SHIFT}, /* D */ +{0x08, KEY_SHIFT}, /* E */ +{0x09, KEY_SHIFT}, /* F */ +{0x0a, KEY_SHIFT}, /* G */ +{0x0b, KEY_SHIFT}, /* H */ +{0x0c, KEY_SHIFT}, /* I */ +{0x0d, KEY_SHIFT}, /* J */ +{0x0e, KEY_SHIFT}, /* K */ +{0x0f, KEY_SHIFT}, /* L */ +{0x10, KEY_SHIFT}, /* M */ +{0x11, KEY_SHIFT}, /* N */ +{0x12, KEY_SHIFT}, /* O */ +{0x13, KEY_SHIFT}, /* P */ +{0x14, KEY_SHIFT}, /* Q */ +{0x15, KEY_SHIFT}, /* R */ +{0x16, KEY_SHIFT}, /* S */ +{0x17, KEY_SHIFT}, /* T */ +{0x18, KEY_SHIFT}, /* U */ +{0x19, KEY_SHIFT}, /* V */ +{0x1a, KEY_SHIFT}, /* W */ +{0x1b, KEY_SHIFT}, /* X */ +{0x1c, KEY_SHIFT}, /* Y */ +{0x1d, KEY_SHIFT}, /* Z */ +{0x2f, 0}, /* [ */ +{0x64, 0}, /* \ */ +{0x30, 0}, /* ] */ +{0x23, KEY_SHIFT}, /* ^ */ +{0x2d, KEY_SHIFT}, /* _ */ +{0x35, 0}, /* ` */ +{0x04, 0}, /* a */ +{0x05, 0}, /* b */ +{0x06, 0}, /* c */ +{0x07, 0}, /* d */ +{0x08, 0}, /* e */ +{0x09, 0}, /* f */ +{0x0a, 0}, /* g */ +{0x0b, 0}, /* h */ +{0x0c, 0}, /* i */ +{0x0d, 0}, /* j */ +{0x0e, 0}, /* k */ +{0x0f, 0}, /* l */ +{0x10, 0}, /* m */ +{0x11, 0}, /* n */ +{0x12, 0}, /* o */ +{0x13, 0}, /* p */ +{0x14, 0}, /* q */ +{0x15, 0}, /* r */ +{0x16, 0}, /* s */ +{0x17, 0}, /* t */ +{0x18, 0}, /* u */ +{0x19, 0}, /* v */ +{0x1a, 0}, /* w */ +{0x1b, 0}, /* x */ +{0x1c, 0}, /* y */ +{0x1d, 0}, /* z */ +{0x2f, KEY_SHIFT}, /* { */ +{0x64, KEY_SHIFT}, /* | */ +{0x30, KEY_SHIFT}, /* } */ +{0x32, KEY_SHIFT}, /* ~ */ +{0,0}, /* DEL */ + +{0x3a, 0}, /* F1 */ +{0x3b, 0}, /* F2 */ +{0x3c, 0}, /* F3 */ +{0x3d, 0}, /* F4 */ +{0x3e, 0}, /* F5 */ +{0x3f, 0}, /* F6 */ +{0x40, 0}, /* F7 */ +{0x41, 0}, /* F8 */ +{0x42, 0}, /* F9 */ +{0x43, 0}, /* F10 */ +{0x44, 0}, /* F11 */ +{0x45, 0}, /* F12 */ + +{0x46, 0}, /* PRINT_SCREEN */ +{0x49, 0}, /* INSERT */ +{0x4a, 0}, /* HOME */ +{0x4b, 0}, /* PAGE_UP */ +{0x4e, 0}, /* PAGE_DOWN */ +}; +#endif + +uint8_t * USBKeyboard::reportDesc() { + static uint8_t reportDescriptor[] = { + USAGE_PAGE(1), 0x01, // Generic Desktop + USAGE(1), 0x06, // Keyboard + COLLECTION(1), 0x01, // Application + REPORT_ID(1), REPORT_ID_KEYBOARD, + + USAGE_PAGE(1), 0x07, // Key Codes + USAGE_MINIMUM(1), 0xE0, + USAGE_MAXIMUM(1), 0xE7, + LOGICAL_MINIMUM(1), 0x00, + LOGICAL_MAXIMUM(1), 0x01, + REPORT_SIZE(1), 0x01, + REPORT_COUNT(1), 0x08, + INPUT(1), 0x02, // Data, Variable, Absolute + REPORT_COUNT(1), 0x01, + REPORT_SIZE(1), 0x08, + INPUT(1), 0x01, // Constant + REPORT_COUNT(1), 0x05, + REPORT_SIZE(1), 0x01, + + + USAGE_PAGE(1), 0x08, // LEDs + USAGE_MINIMUM(1), 0x01, + USAGE_MAXIMUM(1), 0x05, + OUTPUT(1), 0x02, // Data, Variable, Absolute + REPORT_COUNT(1), 0x01, + REPORT_SIZE(1), 0x03, + OUTPUT(1), 0x01, // Constant + REPORT_COUNT(1), 0x06, + REPORT_SIZE(1), 0x08, + LOGICAL_MINIMUM(1), 0x00, + LOGICAL_MAXIMUM(1), 0x65, + + + USAGE_PAGE(1), 0x07, // Key Codes + USAGE_MINIMUM(1), 0x00, + USAGE_MAXIMUM(1), 0x65, + INPUT(1), 0x00, // Data, Array + END_COLLECTION(0), + + // Media Control + USAGE_PAGE(1), 0x0C, + USAGE(1), 0x01, + COLLECTION(1), 0x01, + REPORT_ID(1), REPORT_ID_VOLUME, + USAGE_PAGE(1), 0x0C, + LOGICAL_MINIMUM(1), 0x00, + LOGICAL_MAXIMUM(1), 0x01, + REPORT_SIZE(1), 0x01, + REPORT_COUNT(1), 0x07, + USAGE(1), 0xB5, // Next Track + USAGE(1), 0xB6, // Previous Track + USAGE(1), 0xB7, // Stop + USAGE(1), 0xCD, // Play / Pause + USAGE(1), 0xE2, // Mute + USAGE(1), 0xE9, // Volume Up + USAGE(1), 0xEA, // Volume Down + INPUT(1), 0x02, // Input (Data, Variable, Absolute) + REPORT_COUNT(1), 0x01, + INPUT(1), 0x01, + END_COLLECTION(0), + + }; + reportLength = sizeof(reportDescriptor); + return reportDescriptor; +} + +int USBKeyboard::_putc(int c) { + return keyCode(c, keymap[c].modifier); +} + +bool USBKeyboard::keyCode(uint8_t key, uint8_t modifier) { + // Send a simulated keyboard keypress. Returns true if successful. + + HID_REPORT report; + + report.data[0] = REPORT_ID_KEYBOARD; + report.data[1] = modifier; + report.data[2] = 0; + report.data[3] = keymap[key].usage; + report.data[4] = 0; + report.data[5] = 0; + report.data[6] = 0; + report.data[7] = 0; + report.data[8] = 0; + + report.length = 9; + + if (!send(&report)) { + return false; + } + + report.data[1] = 0; + report.data[3] = 0; + + if (!send(&report)) { + return false; + } + + return true; + +} + + +bool USBKeyboard::mediaControl(MEDIA_KEY key) { + HID_REPORT report; + + report.data[0] = REPORT_ID_VOLUME; + report.data[1] = (1 << key) & 0x7f; + + report.length = 2; + + send(&report); + + report.data[0] = REPORT_ID_VOLUME; + report.data[1] = 0; + + report.length = 2; + + return send(&report); +} + +