ST EVAL-L99DZ200 User manual

Introduction
This document describes the STSW-L99DZ200 Graphical User Interface (GUI) dedicated to run the EVAL-L99DZ200.
The EVAL-L99DZ200 evaluation board is designed for automotive door zone application and it consists in a motherboard and
a daughter board on which the L99DZ200G device is assembled. Both the boards provide electronic control modules with
enhanced power management functionalities including a standby mode. These evaluation boards are designed to drive multiple
DC motors. The STSW-L99DZ200 has been developed by using C++ and it works with a motherboard based on SPC582B60
microcontroller programmed with dedicated firmware that drives the L99DZ200G assembled in the daughter board.
STSW-L99DZ200 GUI
UM2888
User manual
UM2888 - Rev 1 - June 2021
For further information contact your local STMicroelectronics sales office.
www.st.com

1How to connect the EVAL-L99DZ200
The following figure shows how to connect the EVAL-L99DZ200 and the main HW settings. Refer to the datasheet
(see Section 11 Reference documents) for more information on the HW settings of the EVAL-L99DZ200.
Figure 1. Eval-L99DZ200 connection
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2STSW-L99DZ200 GUI installation
2.1 STSW-L99DZ200 GUI setup
1. Install FDTI drive from supplier website
2. Complete the connection (see the Figure 1. Eval-L99DZ200 connection), then power-on
3. Run Setup_GUI.exe
Figure 2. Graphic User Interface setup (1/2)
When GUI installation is finished, GUI icon link is added on your desktop and a main window is showed:
Figure 3. Graphic User Interface setup (2/2)
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STSW-L99DZ200 GUI installation
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3Main window overview
When the EVAL-L99DZ200 is connected and the USB driver is installed, the message “Board connected and
ready ….” will be displayed on the bottom left part of the main window.
Here below an overview of the main functions of the main window is reported.
Figure 4. Main window overview
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Main window overview
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Figure 5. Main window menu items
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Main window overview
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4Standard control panel
4.1 Timers section
Figure 6. Standard control window – timers section
In Figure 6. Standard control window – timers section the section of the GUI related to the configuration of the
two timers embedded in L99DZ200G is shown. For each of the two timers, the period (from 0.01 s to 2 s) and
the on time (from 0.1 ms to 20 ms) is programmable. The restart flag allows to restart the timer with the defined
settings when the SPI CSN goes from low to high (see Section 11 Reference documents). The DIR flag allows
to control the timer from DIR input (see the datasheet Section 11 Reference documents). Once the configuration
of the timers has been set, the update button allows the MCU to create and transfer to the L99DZ200G the
corresponding SPI command.
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Standard control panel
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4.2 Supply voltage monitoring section
Figure 7. Standard control window – supply voltage monitoring section
In Figure 7. Standard control window – supply voltage monitoring section the section of the GUI related to the
configuration of the supply voltage monitoring is shown.
For both Vs and Vsreg there are some flags to enable the lockout and the OV/UV shutdown. A flag to configure
the generator mode (see in the datasheet Section 11 Reference documents) is reported inside this section; the
Vsreg early warning threshold can be here configured too.
One more flag is dedicated to the enabling of the V1 CM (Icmp); see Figure 6. Standard control window – timers
section in its own datasheet (see Section 11 Reference documents).
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4.3 CAN and LIN transceivers section
Figure 8. Standard control window – CAN and LIN transceiver sections
In the figure above the section of the GUI related to the setting of CAN and LIN transceivers is shown.
•Go TRX Ready button allows to set the CAN transceiver in TRX READY mode;
•RX Enable button allows to enable the CAN receiver;
•TX Enable button allows to enable the CAN transmitter;
TOUT Int. Enable flag allows to enable interrupt signal in case of CAN timeout (see CR1, bit 11)
Loopback Enable flag enables the loopback modality of L99DZ200G CAN transceiver (see CR2, bit 5).
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4.4 Watchdog timing section
Figure 9. Standard control window – Watchdog timing sections
In the figure above the section of the GUI related to the setting of WatchDog timing is reported.
One of the following values can be here set, as defined by the WD_TIME_0/1 bits (CR2, bit 0 and bit 1):
• 10 ms
• 50 ms
• 100 ms
• 200 ms
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4.5 Voltage regulator control section
Figure 10. Standard control window – voltage regulator 2 control section
In the figure above the section of the GUI related to the control of the voltage regulator 2 is reported.
The Off button allows to switch OFF or switch ON the V2; in case the V2 is ON, one of the following cases can be
used by setting the related button (see the datasheet Section 11 Reference documents):
•Always ON
•ON in Active mode
•ON in Active & V1 Standby
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Voltage regulator control section
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4.6 Wakeup section
Figure 11. Standard control window – wakeup section
In the figure above the sections of the GUI related to the setting of wake-up are reported.
One of the following values can be here set:
•WU1 wakeup flag allows to wake up the L99DZ200G from WU1 pin;
•LIN wakeup flag allows to wake up the L99DZ200G from LIN;
•CAN wakeup flag allows wake up the L99DZ200G from CAN;
•Timer wakeup flag allows wake up the L99DZ200G from Timer 1 or Timer 2.
The WU1 Inputs Config can be set as Pull DOWN or pull up from the related window menu (as specified in CR
1, bit 20 - WU_PU).
The Input Filter can be set Static or from Timer 1 or from Timer 2, as specified in bit 16, 17 of CR1.
The WU Status reports the value of the bit 22 of SR1 (WU_STATE).
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4.7 Error flags section
Figure 12. Standard control window – error flags section
In the figure above the sections of the GUI related to the errors and bus errors flags are reported.
The following error flags are reported:
• Vs/Vsreg over voltage / under voltage
• V1/V2 fail
• Temperature warning
• Thermal shutdown 1 and thermal shutdown 2
• CP low
• Vsreg early warning
• V2 overcurrent
• LS1(LS2)_FS overcurrent
The following bus errors flags are reported:
• CAN TxD dominant
• CAN RxD recessive
• CAN permanent dominant
• CAN permanent recessive
• CAN supply low
• LIN TxD dominant
• LIN permanent dominant
• LIN permanent recessive
• SPI invalid command
• SPI clock count
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4.8 Power-on / Diagnosis section
Figure 13. Standard control window – power-on / diagnosis section
In the figure above the section of the GUI related to the power-on / wakeup diagnosis is reported.
One of the following values can be here observed:
•V1 Under Voltage
•WDC Fail
•Forced Sleep TSD2
•Forced Sleep WD
The WD Fail cnt indicates number of subsequent watchdog failures (see SR1 from bit 8 to bit 11)
The V1 Restarts Indicates the number of TSD2 events which caused a restart of voltage regulator V1 (see SR1
from bit 12 to bit 14).
The Power-on Reset indicates when a Power-on reset occurs (see SR1, bit 0);
The Wakeup Source reports the source of the wake up (i.e. Wu1, LIN, CAN or TMR).
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4.9 Device status and global status byte section
Figure 14. Standard control window – device status and global status byte section
In the figure above the sections of the GUI related to the device status information and global status byte are
reported.
The runtime values for Vs, Vsreg, WU1 and thermal clusters 1-6 are reported.
The thermal cluster information visualize the status (TW or TSD) for each of the 6 thermal clusters; when a given
thermal Cluster is in TW, the correspondent flag is orange; when it is in TSD, the correspondent flag becomes
red.
Vbat value indicates if the L99DZ200G is in Vbat standby or V1 standby.
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4.10 Mode control section
Figure 15. Standard control window – mode control section
In the figure above the section of the GUI related to the mode control of the L99DZ200G is reported.
4.11 Reset section
Figure 16. Standard control window – reset section
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Mode control section
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In the figure above the section of the GUI related to the reset of the L99DZ200G is reported.
In this section one of the 4 possible reset thresholds (4.3 V, 4.0 V, 3.8 V and 3.5 V) can be configured.
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5Outputs control panel
Figure 17. STSW-L99DZ200 outputs control panel
Figure 18. STSW-L99DZ200 outputs control - half-bridge outputs
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Outputs control panel
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Figure 19. STSW-L99DZ200 outputs control – high sides
Figure 20. STSW-L99DZ200 outputs control – PWN configuration / automatic DC compensation
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Outputs control panel
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6Electro chrome mirror panel
Figure 21. STSW-L99DZ200 –electro-chrome mirror panel
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Electro-chrome mirror panel
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7H-bridges control panel
Figure 22. STSW-L99DZ200 – power H-bridge A control
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H-bridges control panel
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