Jeroen Lodder
Design-in of LPC11U24 (lqfp48) of mbed as Steppermotor controller with USB control.
Mbed repository of Stepper Motor Control board. Using mbed LPC11U24 chip with HID USB.
Hardware in copy repo on bitbucket https://bitbucket.org/jeroen3/stepper-motor-board
Diff: USBHIDProtocol.h
- Revision:
- 0:d0306c0cbee6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBHIDProtocol.h Mon Oct 28 18:26:28 2013 +0000 @@ -0,0 +1,40 @@ +#ifndef USBHIDPROTOCOL_H_ +#define USBHIDPROTOCOL_H_ +/* Command list */ +// Devices verifies with same CMD and optional data + +// System commands + #define CMD_SYS_CHECK 0x00 // Args: version + #define CMD_SYS_RESET 0xFF // Args: bool softreset + +// Miscellaneous + #define CMD_LED_OFF 0x10 // On board led on + #define CMD_LED_ON 0x11 // On board led off + #define CMD_LED_BLINK 0x12 // On board led blink + #define CMD_LED_BREATH 0x13 // Not implemented + #define CMD_GET_BUTTON 0x14 // Returns button history word with 20 ms interval per bit + +// SMC commands + /* Motor has 3 states : + Locked - Current flowing, motor is powered + Brake - Motor terminals short circuit + Free - Motor terminals open + */ + #define CMD_SMC_STEP 0x20 // Args, int number of steps, bool direction, finish this in .. (ms), bool free motor (or keep locked) + #define CMD_SMC_STATE 0x21 // Returns remaining steps, negative if paused + + #define CMD_SMC_STOP 0x22 // Aborts all motor control + #define CMD_SMC_PAUSE 0x23 // Pauzes motor control, keeps locked (overheating!) + #define CMD_SMC_CONTINUE 0x24 // Continues motor control + + // Motor States (ineffective if stepping) + #define CMD_SMC_FREE 0x25 // Free motor + #define CMD_SMC_BRAKE 0x26 // Brake motor (different from lock) + +// AUX channel + #define CMD_AUX_OFF 0x30 // Auxilary channel ON (discards pwm) + #define CMD_AUX_ON 0x31 // Auxilary channel OFF (discards pwm) + #define CMD_AUX_PWM 0x32 // Auxilary channel PWM. Args: duty cycle, period, timer prescaler (from 48 MHz) + +#endif //USBHIDPROTOCOL_H_ +