Rick Bisschop / HIDScope

A simple but very effective scope. Up to 6 channels of 32 bit float data at 1 kHz.

Dependencies:   QEI USBDevice

Fork of HIDScope by Tom Tom

HIDScope.h@1:e44574634162, 2014-09-08 (annotated)

Committer:
tomlankhorst
Date:
Mon Sep 08 09:38:36 2014 +0000
Revision:
1:e44574634162
Parent:
0:79e3f3072f3b
Child:
2:9c9226db4fb1
Updated documentation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tomlankhorst 0:79e3f3072f3b 1 #ifndef _HIDSCOPE_H_
tomlankhorst 0:79e3f3072f3b 2 #define _HIDSCOPE_H_
tomlankhorst 0:79e3f3072f3b 3
tomlankhorst 0:79e3f3072f3b 4 #include "mbed.h"
tomlankhorst 0:79e3f3072f3b 5 #include "USBHID.h"
tomlankhorst 0:79e3f3072f3b 6
tomlankhorst 1:e44574634162 7 /** A simple HID (Human Interface Device) scope
tomlankhorst 1:e44574634162 8 * - Up to 6 channels of float data is transmitted in a single HID message (64 byte)
tomlankhorst 1:e44574634162 9 * - Theoretical maximum samplerate of 1kHz
tomlankhorst 1:e44574634162 10 * - Data can be parsed using a client-side server like NodeJS
tomlankhorst 1:e44574634162 11 *
tomlankhorst 1:e44574634162 12 * Example:
tomlankhorst 1:e44574634162 13 * @code
tomlankhorst 1:e44574634162 14 * #include "mbed.h"
tomlankhorst 1:e44574634162 15 * #include "HIDScope.h"
tomlankhorst 1:e44574634162 16 *
tomlankhorst 1:e44574634162 17 * HIDScope scope(2);
tomlankhorst 1:e44574634162 18 * Ticker scopeTimer;
tomlankhorst 1:e44574634162 19 *
tomlankhorst 1:e44574634162 20 * AnalogIn a0(A0);
tomlankhorst 1:e44574634162 21 *
tomlankhorst 1:e44574634162 22 * int main()
tomlankhorst 1:e44574634162 23 * {
tomlankhorst 1:e44574634162 24 *
tomlankhorst 1:e44574634162 25 * scopeTimer.attach_us(&scope, &HIDScope::send, 1e4); // Send data at 100 Hz
tomlankhorst 1:e44574634162 26 *
tomlankhorst 1:e44574634162 27 * while(1){ // Generate some data
tomlankhorst 1:e44574634162 28 * scope.set(0, a0.read());
tomlankhorst 1:e44574634162 29 * scope.set(1, a0.read());
tomlankhorst 1:e44574634162 30 * wait_us(1000);
tomlankhorst 1:e44574634162 31 * };
tomlankhorst 1:e44574634162 32 *
tomlankhorst 1:e44574634162 33 * }
tomlankhorst 1:e44574634162 34 * @endcode
tomlankhorst 0:79e3f3072f3b 35 */
tomlankhorst 0:79e3f3072f3b 36 class HIDScope {
tomlankhorst 0:79e3f3072f3b 37 public:
tomlankhorst 0:79e3f3072f3b 38 ///Instantiate the HID Scope
tomlankhorst 0:79e3f3072f3b 39 HIDScope(int channels);
tomlankhorst 0:79e3f3072f3b 40
tomlankhorst 0:79e3f3072f3b 41 /** Sets the current channel value
tomlankhorst 0:79e3f3072f3b 42 @param ch : integer channel no (0-6)
tomlankhorst 0:79e3f3072f3b 43 @param val : float value
tomlankhorst 0:79e3f3072f3b 44 @return void
tomlankhorst 0:79e3f3072f3b 45 */
tomlankhorst 0:79e3f3072f3b 46 void set(int ch, float val);
tomlankhorst 0:79e3f3072f3b 47
tomlankhorst 0:79e3f3072f3b 48 /** Sets the current channel value
tomlankhorst 0:79e3f3072f3b 49 @param ch : integer channel no (0-6)
tomlankhorst 0:79e3f3072f3b 50 @param val : integer value
tomlankhorst 0:79e3f3072f3b 51 @return void
tomlankhorst 0:79e3f3072f3b 52 */
tomlankhorst 0:79e3f3072f3b 53 void set(int ch, int val);
tomlankhorst 0:79e3f3072f3b 54
tomlankhorst 0:79e3f3072f3b 55 /** Sets the current channel value
tomlankhorst 0:79e3f3072f3b 56 @param ch : integer channel no (0-6)
tomlankhorst 0:79e3f3072f3b 57 @param val : boolean value
tomlankhorst 0:79e3f3072f3b 58 @return void
tomlankhorst 0:79e3f3072f3b 59 */
tomlankhorst 0:79e3f3072f3b 60 void set(int ch, bool val);
tomlankhorst 0:79e3f3072f3b 61
tomlankhorst 0:79e3f3072f3b 62 /** Sets the current channel value
tomlankhorst 0:79e3f3072f3b 63 @param ch : double channel no (0-6)
tomlankhorst 0:79e3f3072f3b 64 @param val : float value
tomlankhorst 0:79e3f3072f3b 65 @return void
tomlankhorst 0:79e3f3072f3b 66 */
tomlankhorst 0:79e3f3072f3b 67 void set(int ch, double val);
tomlankhorst 0:79e3f3072f3b 68
tomlankhorst 0:79e3f3072f3b 69 /** Sends the channel data to the HID client
tomlankhorst 0:79e3f3072f3b 70 @return void
tomlankhorst 0:79e3f3072f3b 71 */
tomlankhorst 0:79e3f3072f3b 72 void send();
tomlankhorst 0:79e3f3072f3b 73 private:
tomlankhorst 0:79e3f3072f3b 74 USBHID hid;
tomlankhorst 0:79e3f3072f3b 75 HID_REPORT scopeData;
tomlankhorst 0:79e3f3072f3b 76 float* bufferData;
tomlankhorst 0:79e3f3072f3b 77 int channelCount;
tomlankhorst 0:79e3f3072f3b 78 };
tomlankhorst 0:79e3f3072f3b 79
tomlankhorst 0:79e3f3072f3b 80 #endif