UM1756 datasheet(46/49 Pages) STMICROELECTRONICS

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Programming section

UM1756

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DocID026263 Rev 2

Release SW example

49. Motor motion in reverse direction at minimum speed until the user removes the jumper

on J8, the LED_SPARE (YELLOW) toggles until the user removes the jumper on

J8 | ReleaseSW (ACT, DIR).

50. The LED_SPARE (YELLOW) is switched off.

51. Motor moves by 100,000 steps forward | Move (DIR, N_STEP).

52. Wait until not busy - busy pin test (pin 22).

53. Motor goes to the home position set by the ReleaseSW command | GoHome.

54. Wait until not busy - busy pin test (pin 22).

Step clock mode example

55. Get Status to clear FLAG due to switch turn-on event (falling edge on the SW pin) |

GetStatus.

56. Motor runs in step clock mode at 2000 steps/s in forward direction for a few seconds

while a 2 kHz clock signal from the MCU is applied to the STCK pin (25) | StepClock

(DIR).

57. The above cited clock is stopped.

Buttons interrupt example

58. Buttons interrupt configuration

Button_A

–

Starts the motor at quarter of max. speed if it is stopped | Run (DIR, SPD).

–

Doubles the motor speed if it is already running | Run (DIR, SPD).

Button_B

–

Disables the power bridges after a smooth stop if the motor is running at minimum

speed | SoftHiZ.

–

Halves the motor speed if the motor is running above minimum speed | Run

(DIR, SPD).

5.4.4

Create a project using the FW library package

Using your preferred IDE, create a new project.

In project options, properties or settings:



Select for the device, the ST STM32F105xB.



Use the CMSIS library.

Edit the preprocessor defined symbols and add:



STM32F10X_CL



USE_STDPERIPH_DRIVER



ST_CSPIN_6480H_DISCOVERY

The flag ST_CSPIN_6480H_DISCOVERY is used for both L6480 and L6482 chips. It is

used to distinguish boards (i.e. the DISC board from the PCC009V2 board).

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