To the maxim um extent p ermitted by applicabl e law, Fuji tsu Microe lectronic s Europe Gm bH restric ts
its warranties and its liability for the MotorKit-91F267-MC Board and all its deliverables (eg.
software include or header files, application examples, target boards, evaluation boards, engineering
samples of IC’s etc.), its performance and any consequential damages, on the use of the Product in
accordance with (i) the terms of the License Agreement and the Sale and Purchase Agreement under
which agreements the Product has been delivered, (ii) the technical descriptions and (iii) all
accompanying written materials. In addition, to the maximum extent permitted by applicable law,
Fujitsu Microelectronics Europe GmbH disclaims all warranties and liabilities for the performance of
the Product and any consequential damages in cases of unauthorised decompiling and/or reverse
engineering and/or disassembling. Note, the MotorKit-91F267-MC Board and all its deliverables are intended and must only be used in an evaluation laboratory environment.
1. Fujitsu Microelectronics Europe GmbH warrants that the Product will perform substantially in
accordance with the accompanying written materials for a period of 90 days form the date of
receipt by the customer. Concerning the hardware components of the Product, Fujitsu
Microelectronics Europe GmbH warrants that the Product will be free from defects in material
and workmanship under use and service as specified in the ac companying written materials
for a duration of 1 year from the date of receipt by the customer.
2. Should a Product turn out to be defect, Fujitsu Microelectronics Europe GmbH´s entire liability
and the customer’s exclusive remedy shall be, at Fujitsu Microelectronics Europe GmbH´s
sole discretion, either return of the purchase price and the license fee, or replacement of the
Product or parts thereof, if the Product is returned to Fujitsu Microelectronics Europe GmbH in
original packing and without further defects resulting from the customer’s use or the transport.
However, this warranty is excluded if the defect has resulted from an accident not attributable
to Fujitsu Microelectronics Europe GmbH, or abuse or misapplication attributable to the
customer or any other third party not relating to Fujitsu Microelectronics Europe GmbH.
3. To the maximum extent permitted by applicable law Fujitsu Microelectronics Europe GmbH
disclaims all other warranties, whether expressed or implied, in particular, but not limited to,
warranties of merchantability and fitness for a particular purpose for which the Product is not
designated.
4. To the maximum extent permitted by applicable law, Fujitsu Microelectronics Europe GmbH´s
and its supplier’s liability are restricted to intention and gross negligence.
NO LIABILITY FOR CONSEQUENTIAL DAMAGES
To the maximum extent permitted by applicable law, in no event shall Fujitsu
Microelectronics Europe GmbH and its suppliers be liable for any damages whatsoever
(including but without limitation, consequential and/or indirect damages for personal
injury, assets of substantial value, loss of profits, interruption of business operation,
loss of information, or any other monetary or pecuniary loss) arising from the use of
the Product.
Should one of the above stipulations be or become invalid and/or unenforceable, the remaining
stipulations shall stay in full effect
The MotorKit-91F267-MC is a multifunctional evaluation board for the Fujitsu 32-Bit FRlite
Flash microcontroller MB91F267N.
The board allows the designer immediately to start with the software development and
evaluation of low voltage three-phase motor control applications before his own final target
system is available.
1.2 Features
● Supports the MB91F267(N) MCU in FPT-64P-M23 package
● Flexible power supply voltage system:
c DC bus input 10-24V 15A max. for motor current supply
■ Default configuration max. 6A (limited by shunt resistor power dissipation)
c Logic supply from DC Bus or separate input 8-15V
This board must only be used for test applications
in an evaluation laboratory environment.
1.3 General Description
The MotorKit-91F267-MC supports the 32bit MB91F267(N) Flash microcontroller.
The board is supplied with a socketed 4MHz crystal as the main oscillation clock. Using the
internal PLL of the µC, internal clock rates up to 32MHz can be achieved.
Two separate RS232 transceivers are available to connect two on-chip UARTs to 9-pin D-
Sub connectors (X1, X2). The transceivers generate the adequate RS232 levels for the
receive (RXD) and transmit (TXD) lines. The DTR line can be selected with jumpers (JP17,
JP19) to generate a system reset. The RTS signal can be shortcut to CTS using the jumpers
JP5 and JP26. The signals to and from the UART interfaces can be galvanically isolated by
optocouplers and a separate supply by a DC-DC converter to avoid interference with a host
PC.
In-circuit-programming (asynchronous) can be done via UART0 (X1) using the burn-in
bootloader of the microcontroller.
One CAN transceiver is available to integrate the board in a Controller Area Network. The
CAN interface can be opto-isolated or connected to the MCU directly independently of the
UART interfaces.
All pins of the microcontroller (except oscillator pins X1 and X0) are connected to the pin
headers J1-J4 and are directly available to the user. Furthermore, the most important signals
like voltage and current measurements are available on separate pin headers.
The on-board voltage regulators allow the user to configure the board to fit a variety of
situations. The board includes a 15V-regulator for the gate drivers, as well as a 5V-regulator
for the MCU and logic supply. The 15V regulator can be bypassed (JP20) if the source input
voltage is in the range of 10-20V. The 5V regulator can use a separate 8-15V input or use
the gate drive supply as regulator input. Also, solder jumpers (JP29 and JP63) can be set to
supply the DC bus from the logic power supply input (X6), e.g. when using a small motor
(<3A).
There are seven push button switches on the board, which can be connected to input pins of
the microcontroller. SW1 (NMI) can be connected to the NMI pin. SW2-SW5 can be
connected to various I/O pins of the MCU. Additionally, by setting JP7, all buttons can trigger
the external interrupt 7, which is normally connected only to SW2 ('wired-OR'). This allows
reading all buttons in a single ISR and saves external interrupt pins. SW6 is the system reset
button, and SW7 triggers the fault input pin (DTTI) of the MCU, which can shut down the
PWM output in case of over-current or over-voltage.
Eight user-LEDs are connected via a 1K pull-up resistor network to Port P00-P07. If these
LEDs are not required, the resistor network can be removed to disconnect the LEDs and free
the port.
The operating mode of the microcontroller (Program / Run) is selected by JP18.
The board provides current and voltage measurement circuits for the motor phases and the
DC bus which are connected to the ADC of the microcontroller. The signal conditioning
circuit fits a variety of applications. Some applications might require a faster or slower
filtering e.g. of the voltage measurement; this can be done by changing R/C values or
adding capacitors in the current measurement circuit (e.g. C70, C72, C75, C77).
Carefully remove the board from the shipping carton.
Check if there are any damages before power is applied to the evaluation board.
For the logic power supply a DC input voltage of 9V – 15V is recommended. The
positive voltage (+) must be connected to the shield, and ground (GND) must be
connected to the center of the connector X6!
By default, the DC bus is supplied through the screw terminal J5. Connect to an
adequate power supply for the motor in use (24V max.). Be aware that this input is not
protected against false polarity. Always connect ‘+’ to the terminal close to the upper
board edge, and GND to the one close to X6.
Further, it is strongly recommended to use a laboratory DC power supply with
adjustable current limitation with this board. Otherwise, in case of software or
hardware malfunctions or false configurations, high currents can flow and damage
the power supply and/or the board and lead to overheating by excessive power
dissipation.
After power-on, the green power-on LEDs (LD2 and LD3) should be on, depending on the
configuration of the corresponding jumpers. If the LEDs do not light, switch off the power
supply and check the jumper settings according to the desired configuration.
By default, the evaluation board is equipped with an MB91F267N Microcontroller.
The in-circuit programming allows the user to program an own application into the Flash
memory. Programming of the Flash memory is described in chapter 4.
Depending on the power supply used for the DC bus input, it might be necessary to protect
the power supply against reverse current. This can occur when shutting down the power
supply with the board attached, or when an attached motor is externally accelerated or
quickly decelerated and thereby works as a generator. This protection can be done by a
diode of sufficient current capability. Since many power supplies are vulnerable to this issue,
inserting a shottky diode is recommended.
Depending on the application, the use of an external brake chopper circuit might be
necessary. Typical applications are high-speed or varying load applications, such as
centrifuges or elevators, in which the motor can be also moved by the load. Especially if the
motor can be externally accelerated beyond the nominal speed, high voltages can occur
which may damage the hardware.
The board is shipped with power transistors in a D2PAK package. For additional flexibility,
there are also soldering options for power MOSFETS in TO-220 packages, which can be
mounted on external heat sinks. In this case, probably also the current measurement shunts
should be replaced with a smaller value or bypassed to reduce heat.
This chapter describes the jumpers and potentiometers to configure the various features of
the evaluation board. The default settings are shaded in the following tables.
3.1 Operating Mode
JP18 is used to select between serial Flash programming (UART0) and normal run mode.
Jumper Setting Function
JP18
1-2 Run
2-3 Program
3.2 Power Supply (JP: 13, 14, 28, 29, 31, 32, 63)
The evaluation board supports a variety of different input voltages. The regulator input for
MCU and logic supply can be provided either by a separate power input (X6), by the gate
driver supply voltage or it can be connected directly to the DC bus. The supply voltage for
the gate drive circuits must be in the range of 10-20V and can be derived either from the DC
bus or X6. A 15V voltage regulator can be inserted in case the used input voltage is higher
than 20V.
The UART and CAN interfaces can be optically isolated. Therefore, a DC-DC converter and
optocouplers are supplied on the board. They are placed in sockets, and can be bypassed
when not present.
JP13 Vcc_COM = VCC5
This jumper connects the transceiver supplies with the MCU supply when no DC-DC
converter is used (no galvanic decoupling)
JP14 GND_COM = GND
This jumper connects the transceiver ground with the MCU ground when no DC-DC
converter is used (no galvanic decoupling)
JP28 VCC15V Source
This jumper selects whether the gate driver supply voltage is fed from the 15V
voltage regulator or directly from the DC bus voltage
JP29 P_connect
This jumper can be used to connect the DC bus and gate driver supply to the supply
input X6. This can be useful when a small motor is used and the entire system is
powered by X6, or when JP63 is open, it is also possible to supply the gate driver
from X6 and only the DC bus by J5 (default).
JP31 Power
This jumper can be used to switch the logic supply on and off.
This jumper selects the source for the 5V voltage regulator input. This can either be
the gate driver voltage, or X6/JP29.
JP63 Bus power connect
This jumper connects the DC bus voltage input J5 with the logic and gate driver
supply. To vary the DC bus voltage from 0-30V independently of the other supply
voltages, open JP63 and supply 10-15V at X6. JP28 and JP32 should then be in 1-2
position.
Jumper Setting Description
JP13
JP14
JP28
JP29
JP31
JP32
JP63
By default, the board is configured for DC bus voltage 0-24V and separate logic supply input
(X6) 10-20V (12V recomm.)
Open DC-DC converter ‘+’ used for transceiver supply
Closed Same supply as MCU used for transceivers (Vcc5)
Open DC-DC converter ‘-’ used for transceiver supply
Closed Same GND as MCU used for transceivers (GND)
1 - 2 Bypass 15V regulator (Source voltage 10-20V)
2 - 3 Insert 15V regulator (Source voltage >18V)
Closed common inputs for 15V and 5V regulator
Open separate inputs for 15V and 5V regulator
Closed Logic supply input enabled
Open Logic supply input disabled
1-2 5V regulator input connected to VCC15
2-3 5V reg. input connected to X6 and/or 15V reg. input
Closed connect DC bus voltage to logic and gate driver
supply
Open J5 supplies only the DC bus
WARNING: There is no protection diode between the DC bus input (J5) and the
DC bus. Applying a voltage with reverse polarity can cause damage to the
power stage.
Always connect ‘+’ to the terminal close to the upper board edge, and GND to
the one close to X6.
Always use a laboratory DC power supply with adjustable current limitation
with this board. Otherwise, in case of software or hardware malfunctions or
false configurations, high currents can flow and damage the power supply
and/or the board and lead to overheating by excessive power dissipation.
3.3 Analog Power Supply Voltage (JP: 15, 16, 21, 22)
The power supply as well as the positive reference voltages for the A/D-converter can be
provided internally or externally.
JP15, JP22 connect power supply voltages (AVcc and AVss)
JP16, JP21 connect reference voltages (AVRH1, AVRH2 to AVcc)
Jumper Setting Description
JP15 (AVcc)
Closed AVcc is connected to Vcc
Open AVcc is disconnected from Vcc
Closed AVRH2 is connected to AVcc
JP16 (AVRH2)
Open AVRH defined by resistor network
*1
Closed AVRH1 is connected to AVcc
JP21 (AVRH1)
Open AVRH defined by resistor network
*1
Closed AVss is connected to GND
JP22 (AVss)
Open AVss is disconnected from GND
*1
By default the resistor networks are not mounted on the board
By default, the A/D-converter supply and reference voltages are the same as the
microcontroller supply voltage.
Note:
If JP15, JP16 and J11 are open, the user has to supply an adequate analogue voltage
supply (AVcc and AVss) to the A/D-converter.
If JP16 is open, the resistors R22 and R27 define AVRH2.
If JP21 is open, the resistors R21 and R26 define AVRH1.
By default the resistor networks are not mounted on the board.
One RS232-transceiver (U2, X1) can be connected to the microcontrollers UART interface 0.
JP3, JP12 (Solder JP) bypass OC1, OC2 or disconnect UART interface when OC1,2 not
installed
JP5 Some Flash-programming-Tools need a connection between CTS and RTS
Jumper Setting Description
JP3 (UART0 RxD)
Closed UART 0 RX is directly connected to the MCU
Open UART 0 RX is connected to the MCU via OC1
JP12 (UART0 TxD)
Closed UART 0 TX is directly connected to the MCU
Open UART 0 TX is connected to the MCU via OC2
Closed RTS and CTS of X1 are connected
JP31 (RTS-CTS)
Open RTS and CTS of X1 are not connected
3.5 UART1 (JP: 25, 26, 27)
One RS232-transceiver (U4, X2) can be connected to the microcontrollers UART interface 1.
JP25, JP27 (Solder JP) bypass OC4, OC5 or disconnect UART interface when OC4,5 not
installed
JP26 Some Flash-programming-Tools need a connection between CTS and RTS
One CAN-transceiver (U5, X3) can be connected to the microcontrollers CAN interface.
JP30, JP35 (Solder JP) bypass OC6, OC7 or disconnect CAN interface when OC6,7 not
installed
JP33 Select CAN ground (MCU or COM)
JP34 Select CAN VCC (MCU or COM)
Jumper Setting Description
JP30
JP35
JP33
JP34
Closed CAN0 RX is directly connected to the MCU
Open CAN0 RX is connected to the MCU via OC6
Closed CAN0 TX is directly connected to the MCU
Open CAN0 TX is connected to the MCU via OC7
1-2 CAN ground = GND_COM
2-3 CAN ground = GND
1-2 CAN VCC = VCC_COM
2-3 CAN VCC = VCC5
Additionally to the internal Power-On reset, the microcontroller can be reset by an external
reset circuit (Voltage monitor) and by the UARTs DTR lines.
JP17 Selects whether UART0 or UART1 are used for reset generation
JP19 This jumper enables the reset generation by the UARTs.
JP20 This jumper can be used to bypass OC3.
JP23 This jumper connects the reset circuit to the MCU.
JP24 This jumper enables the watchdog function of the reset circuit. When it is set, the
user program has to re-trigger it periodically by toggling a port pin (P37), or else
the system is reset.
Jumper Setting Description
JP17 (Reset A/B)
1-2 DTR of UART1 is selected
2-3 DTR of UART0 is selected
Open UART reset generation is disabled
JP19 (DTR)
Closed UART reset generation is enabled
Open The DTR signal is connected to the reset circuit via
OC3
JP20 (OC3 bypass)
Closed The DTR signal is connected directly to the reset
circuit.
Closed External Reset generation is active
JP23 (Ext. Reset)
Open No external Reset generation
Closed The watchdog function of U3 is enabled
JP24 (Watchdog)
Open The watchdog function of U3 is disabled
Note:
While a reset signal is asserted the red Reset LED (LD1) is lit.
During normal operation, this LED should be off.
If the reset LED stays on, check the power supply input voltage, and the above jumper
JP2 JP2 connects SW1 to the NMI (Non-Maskable Interrupt) of the MCU.
JP6, JP8, JP10, JP11
Four user push buttons (SW2-SW5) can be connected to the microcontroller.
JP7 By setting JP7, all user buttons (SW2-SW5) can also trigger external interrupt 7
(wired-OR).
Jumper Setting Description
JP2 (SW1)
Closed SW1 is connected to the NMI input (Pin 14) of the MCU
Open No connection of SW1 to the microcontroller
Closed SW2 is connected to INT7 (Pin50) of the MCU.
JP6 (SW2)
Open No connection of SW2 to the microcontroller
Closed SW3 is connected to P27 (Pin41) of the MCU
JP8 (SW3)
Open No connection of SW3 to the microcontroller
Closed SW4 is connected to P24/CKI (Pin38) of the MCU
JP10 (SW4)
Open No connection of SW4 to the microcontroller
Closed SW5 is connected to P22/PWI0 (Pin36) of the MCU
JP11 (SW5)
Open No connection of SW5 to the microcontroller
JP7 (Common
INT))
Closed All buttons also trigger external interrupt 7
Open Independent operation of SW2-SW5
SW6 serves as manual reset button. It is directly connected to the MCUs reset input pin
(INITX, Pin51).
SW7 is connected to the DTTI input of the MCU. When this function is activated in software,
the DTTI input can shut down the PWM output of the MCU (e.g. fault or over-current
protection). Refer to the MB91F265 Series hardware manual for details of the DTTI function
These jumpers select if the internal or external current signals are connected to
the MCU analog inputs AN0-AN3.
JP59This solder jumper selects an offset defined by R99 and R102 which is added
to the internal phase current values (2.5V by default, R99 = R102 = 10k)
JP41, JP47, JP52, JP53
These solder jumpers can be used to bypass the measurement shunts, when
they are not mounted or to reduce the power dissipation when not used by the
application.
Jumper Setting Description
JP41
JP47
JP52
JP53
JP43
JP46
JP48
Open Shunt for phase A current measurement used
Closed Shunt for phase A current measurement bypassed
Open Shunt for phase B current measurement used
Closed Shunt for phase B current measurement bypassed
Open Shunt for phase C current measurement used
Closed Shunt for phase C current measurement bypassed
Open Shunt for DC bus current measurement used
Closed Shunt for DC bus current measurement bypassed
1-2
2-3
1-2
2-3
Closed
The current of the internal power stage phase A is
measured
The phase A current sense signal of an external power
stage is passed to the MCU
The current of the internal power stage phase B is
measured
The phase B current sense signal of an external power
stage is passed to the MCU
The phase C current sense signal of an external power
stage is passed to the MCU
Open No connection to AN2
1-2
JP51
2-3
1-2 No offset on phase current values
JP59
2-3
In case an external power stage is used, the external power stage has to supply adequate
voltage levels of the measured values as well as conditioned signals.
The current of the internal power stage DC bus is
measured
The DC bus current sense signal of an external power
stage is passed to the MCU
offset defined by R99 / R102 is added to internal phase
current values
Page 21
MotorKit-91F267-MC User Guide
3.11 Voltage measurement (JP: 43, 46, 48, 51, 59)
JP36, JP37, JP40, JP42
These jumpers select of the internal or external voltage measurement signals
are connected to the MCU analog inputs AN4-AN7.
Jumper Setting Description
1-2
The Phase A voltage of the internal power stage is
measured
JP36
2-3 The Phase A voltage measurement signal of an external
power stage is passed to AN4
1-2
The Phase B voltage of the internal power stage is
measured
JP37
2-3 The Phase B voltage measurement signal of an external
power stage is passed to AN5
1-2
The Phase C voltage measurement signal of an external
power stage is passed to AN6
JP40
2-3 The Phase C voltage measurement signal of an external
power stage is passed to AN6
1-2 The voltage of the internal DC bus is measured
JP42
2-3 The DC bus voltage measurement signal of an external
power stage is passed to AN7
In case an external power stage is used, the external power stage has to supply adequate
voltage levels and signal conditioning. The board only supplies protection diodes for voltage
peaks. In any case, a series resistor of min. 1k should be inserted on the external power
stage.
3.12 User potentiometers (JP: 1, 4, 9)
JP1 This jumper connects P1 to analog input AN8 of the MCU.
JP4 This jumper connects P2 to analog input AN9 of the MCU.
JP9 This jumper connects P3 to analog input AN10 of the MCU.
Jumper Setting Description
JP1
JP4
JP9
Note, that on hardware rev. 1.0, GND is on the right stop of the scale, and VCC at the left.
3.13 Hall sensor and encoder interface (JP: 54, 56, 57, 60, 61, 62)
JP54, JP56, JP57 These jumpers select whether the hall sensors are connected to the
input capture pins IC0-IC2 or to the external interrupts INT0-INT2.
JP60, JP61, JP62These jumpers connect the encoder interface (J13) to IC0 (Ch. A), IC1
(Ch. B) and INT3 (Index).
Jumper Setting Description
JP54
1-2 Hall A input is connected to IC0
2-3 Hall A input is connected to INT0
1-2 Hall B input is connected to IC1
JP56
2-3 Hall B input is connected to INT1
1-2 Hall C input is connected to IC2
JP57
2-3 Hall C input is connected to INT2
Open Encoder Ch. A is not connected to the MCU
JP60
Closed Encoder Ch. A is connected to IC0
Open Encoder Ch. B is not connected to the MCU
JP61
Closed Encoder Ch. B is connected to IC1
Open Encoder index signal is not connected to the MCU
JP55 The over-current detection circuit (U9A) is connected to the MCU DTTI input.
JP58 The over-voltage detection circuit (U9B) is connected to the MCU DTTI input.
Jumper Setting Description
Closed Over-current DTTI is enabled
JP55
Open Over-current DTTI is disabled
Closed Over-voltage DTTI is enabled
JP58
Open Over-voltage DTTI is disabled
Both JP55 and JP58 can be set, since they are connected by diodes (wired-OR).
The threshold voltage for DTTI can be adjusted with the potentiometers P6 (current) and P7
(voltage).
Since it monitors the DC bus current, the over-current detection only works if the DC bus
current measurement is not bypassed (JP53 must be open).
In order to program the Flash ROM asynchronously via UART0, the tool “Fujitsu Flash MCU
Programmer for FR” can be used. This tool is available free on the Fujitsu Micros CD-ROM
or Web Site (http://mcu.emea.fujitsu.com/mcu_tool/software.htm)
The following procedure must be followed to perform Flash Programming:
1. Install the FJ FR Flash programmer.
2. Connect the Starterkit (UART 0) to the PC using a 1:1 cable.
3. Start the Flash programmer by double-clicking on the icon
4. Select appropriate MCU type, oscillator freque ncy, COM-Port, and the path to your
HEX-File (.mhx)
5. Power-off the board
6. Set JP18 to 2-3 (PRG) and power up the Board
7. Press the “Full Operation” button to start programming, press the RESET button
(SW6) and click on ‘OK’.
CAUTION: DO NOT INTERRUPT OR CUT OFF POWER DURING ERASE!!!
8. When download and programming was completed successfully, a message appears.
In case of errors, please check COM-Port configuration, cable connection and jumper
settings.
9. After successful programming, Power off the board and set JP18 back to 1-2 (RUN)
The following figure shows the power connection jack X612. This connector is used to
connect an external unregulated DC power supply voltage (8-15V DC) to the evaluation
board.
Connector X6:
Shield is connected to positive voltage supply
It is recommended to use 9-12V input voltage (depending e.g. on gate driver configuration)
to keep the power dissipation to a minimum.
Center is connected to ground (GND)
5.2 DC bus power connector (J5)
The DC bus power can be supplied either by X6 (when JP29 and JP63 are set and
the current is not higher than 3A) or by J5. J5 is a screw terminal for currents up to
15A. Be aware that there is no protection diode for this input on the board. The
voltage input range depends on the jumper settings as described in chapter 3.2.
It is recommended to use an external protection diode with sufficient current
capability in case the used power supply is not protected against reverse current
sourced from the load flowing into the power supply.
Always connect ‘+’ to the terminal close to the upper board edge, and GND to the one
close to X6.
Further, it is strongly recommended to use a laboratory DC power supply with
adjustable current limitation with this board. Otherwise, in case of software or
hardware malfunctions or false configurations, high currents can flow and damage
the power supply and/or the board and lead to overheating by excessive power
dissipation.
5.3 Pin headers (J1-J4)
All pins of the microcontroller are directly connected to J1 to J4 as follows:
Connector MCU Pins
J1 1 – 16
J2 17 – 32
J3 33 – 48
J4 49 – 64
The odd pin numbers are located on the one side and the even pin numbers are located on
the other side of the connector. On the PCB, the corresponding pin numbers of the µC are
written next to the connector pins.
Two 9-pin D-Sub female connectors are used
for the serial interface UART0 and UART1.
TXD is the transmit output, RXD is the receive input.
The DTR or RTS signal can be used to generate a reset.
Please use a 1:1 cable for PC-connection.
5.5 CAN connector (X3)
One 9-pin D-Sub male connector is used for the CAN
interface CAN0.
5.6 User LEDs & LC-Display (optional)
GND DTR RxD TxD
5
9
CTS RTS DSR
CANL
1
6
CANH
1
6
5
9
Eight LEDs are reserved for user-application. In order to disconnect the LEDs from the
related microcontroller port, the resistor network RN1 can be removed.
Instead of the user-LEDs, an alphanumeric LC-Display (optional) can be connected.
The following control signals are supplied:
14 13 12 11 10 9 8 7 6 5 4 3 2 1
LCD D7 D6 D5 D4 - - - - E R/WRS V0 VCC GND
LED LED8 LED7 LED6 LED
5
MCU
Port
25 24 23 22 21 20 19 18
P07 P06 P05 P04 P03 P02 P01 P00
LED4 LED3 LED2 LED
1
5.7 PWM LEDs
The board provides six LEDs, indicating the state of each PWM output (LED9-LED14).
5.10 Connector for external inverter board (J6, J7)
J6 holds the PWM signals and supply voltages for an external inverter board. J7 can be
used to connect the voltage and current measurement signals to the MCU.
J6 pin Signal J6 pin Signal
1 VCC5 6
2 VCC15 7
3
4
5
RTO0
PWM1H
RTO1
PWM1L
RTO2
PWM2H
8
9
10
RTO3
PWM2L
RTO4
PWM3H
RTO5
PWM3L
GND
GND
1
3
5
7
9
2
4
6
8
10
When using an external inverter board, the internal gate drivers should be disconnected
(JP38, JP39, JP44, JP45, JP49, JP50)
J7 pin Signal J7 pin Signal
1
2
3
Voltage
Phase A
Voltage
Phase B
Voltage
Phase C
6
7
8
GND
Current
Phase A
Current
Phase B
1
3
5
7
9
2
4
6
8
10
4
Voltage
DC bus
5 FAULT 10
The input signals to J7 have to be conditioned externally. Even though the voltage
measurement inputs are protected by diodes against voltage peaks, care should be taken to
avoid spikes. At least, a series resistor (e.g. 1k) should be present in all MCU ADC
connections. The current sense inputs are connected directly to the MCU analog inputs
AN0-AN4 if the corresponding jumpers (JP43, JP46, JP48, JP51) are set. Refer to chapter 3
for details.