Datasheet
Table Of Contents
- Figure 1. EVAL6460 demonstration board
- 1 The L6460 main features
- 2 EVAL6460 board description
- 3 The EVAL6460 controlled by the EVAL_IBU-STR7
- Figure 5. EVAL_IBU-STR7 board
- Figure 6. EVAL_IBU-STR7 schematic board
- 3.1 Board connection and configuration
- 3.2 Starting flexSPIN evaluation software
- Figure 13. FlexSPIN evaluation software - start window
- 3.2.1 How to turn-on the VswDrv regulator
- 3.2.2 How to enable the DC1 and DC2 output bridges
- 3.2.3 How to enable the DC3 and DC4 output bridges
- 3.2.4 How to assign and read a GPIO
- 3.2.5 How to read and clear an undervoltage event
- 3.2.6 How to manage the interrupt controller
- 3.2.7 How to put the device into "low power" condition and awaken it
- 3.2.8 How to generate a PWM
- 3.2.9 How to close the low voltage power switch
- 3.2.10 How to measure an input voltage using A-D converter
- 3.2.11 How to use the digital comparator
- 3.2.12 How to configure and program the device via the SPI sequencer
- 3.2.13 How to read the device temperature
- 3.2.14 How to work in master - slave configuration
- 4 Revision history
AN3097 The EVAL6460 controlled by the EVAL_IBU-STR7
Doc ID 16599 Rev 2 21/34
By ticking the auto-check boxes, you can configure the operation mode of the single half
bridge outputs. The options available are:
● '0': Hold the output low (low side power on)
● '1': Hold the output high (high side power on)
● HiZ: high impedance status (high and low side off)
● PWM_1-0: the output is alternatively in status '0' or '1'
● PWM_HiZ-0: the output is alternatively in status 'HiZ' or '0
● PWM_1-HiZ: the output is alternatively in status '1' or 'HiZ'.
In the right side of the window you can set other bridge parameters:
● PWM source selection (internal or external)
● PWM duty cycle
● Overcurrent offtime selection
Note: The overcurrent protection threshold is fixed.
Finally to enable the bridges, click on "Enable motors 3 and 4" and move the PWM sliders to
a percentage different to the 0 default value.
To put the bridges in parallel it is necessary to tick the "motors 1 and 2 paralleled" auto-
check box: output DC3+ and DC4+ is shorted together and so DC3- and DC4- also. The
resulting bridge uses the driving logic of bridge 3 as mentioned above.
If you want to drive a stepper motor click one of the buttons connected to the "stepper
controller" box as shown in Figure 22; all the four connections to bridges 3 and 4 are
selected. Push one of the "Set configuration and enable" buttons.
Figure 22. Bridge 3 and 4 configuration: stepper controller