L6470PD datasheet(24/70 Pages) STMICROELECTRONICS

部品番号	L6470PD

部品情報	dSPIN fully integrated microstepping motor driver with motion engine and SPI

PDF	70 Pages

Scroll/Zoom	100%

メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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24 / 70 page

Functional description

L6470

24/70

Doc ID16737 Rev 5

6.6.1

Infinite acceleration/deceleration mode

When the ACC register value is set to max. (0xFFF), the system works in “infinite

acceleration mode”: acceleration and deceleration phases are totally skipped, as shown in

Figure 8.

It is not possible to skip the acceleration or deceleration phase independently.

Figure 8.

Speed profile in infinite acceleration/deceleration mode

6.7

Motor control commands

The L6470 can accept different types of commands:

●

constant speed commands (Run, GoUntil, ReleaseSW)

●

absolute positioning commands (GoTo, GoTo_DIR, GoHome, GoMark)

●

motion commands (Move)

●

stop commands (SoftStop, HardStop, SoftHiz, HardHiz).

For detailed command descriptions refer to Section 9.2 on page 55.

6.7.1

Constant speed commands

A constant speed command produces a motion in order to reach and maintain a user-

defined target speed starting from the programmed minimum speed (set in the MIN_SPEED

registers). A new constant speed command can be requested anytime.

L6470PD データシート(PDF) 24 Page - STMicroelectronics