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OP8665 Pin Assignments

Owned by Sylvain Ménard
Last updated: Mar 11, 2023
2 min read

The DB37 connector pins are assigned to specific channels.

Screw Terminals

40 pin connector

Signal description

TI TmdSdOCK28335 board signals




Id

Pin

Id

Pin

from Connector

Signal Name

Pin

Signal Name

Connector

Pin

Description

ST1A-1

ST2A-1

1

CN1-A

CN2-A

1

DB37 - IO

AOut +00

AOut +08

9

Resolver Excitation +

J1

26

GPIO6/EPWM4A/EPWMSYNCI/ EPWMSYNCO

ST1A-2

ST2A-2

1

CN1-A

CN2-A

2

DB37 - IO

AOut -00

AOut -08

28

Resolver Excitation -



GND

ST1A-1

ST2A-1

2

CN1-A

CN2-A

3

DB37 - IO

AOut +01

AOut +09

10





ST1A-2

ST2A-2

2

CN1-A

CN2-A

4

DB37 - IO

AOut -01

AOut -09

29





ST1A-1

ST2A-1

3

CN1-A

CN2-A

5

DB37 - IO

AOut +02

AOut +10

11





ST1A-2

ST2A-2

3

CN1-A

CN2-A

6

DB37 - IO

AOut -02

AOut -10

30





ST1A-1

ST2A-1

4

CN1-A

CN2-A

7

DB37 - IO

AOut +03

AOut +11

12





ST1A-2

ST2A-2

4

CN1-A

CN2-A

8

DB37 - IO

AOut -03

AOut -11

31





ST1A-1

ST2A-1

5

CN1-A

CN2-A

9

DB37 - IO

AOut +04

AOut +12

13





ST1A-2

ST2A-2

5

CN1-A

CN2-A

10

DB37 - IO

AOut -04

AOut -12

32





ST1A-1

ST2A-1

6

CN1-A

CN2-A

11

DB37 - IO

AOut +05

AOut +13

14





ST1A-2

ST2A-2

6

CN1-A

CN2-A

12

DB37 - IO

AOut -05

AOut -13

33





ST1A-1

ST2A-1

7

CN1-A

CN2-A

13

DB37 - IO

AOut +06

AOut +14

15





ST1A-2

ST2A-2		7

CN1-A

CN2-A		14

DB37 - IO

AOut -06

AOut -14

34



ST1A-1

ST2A-1

8

CN1-A

CN2-A

15

DB37 - IO

AOut +07

AOut +15

16





ST1A-2

ST2A-2

8

CN1-A

CN2-A

16

DB37 - IO

AOut -07

AOut -15

35



Screw Terminals

40 pin connector

Signal description

TI TmdSdOCK28335 board signals




Id

Pin

Id

Pin

from Connector

Signal Name

Pin

Signal Name

Connector

Pin

Description

ST1A-3
ST2A-3		1CN1-A
CN2-A		17DB37 - IOAIn +00
AIn +08		1ADCINA0J157
ST1A-4
ST2A-4		1CN1-A
CN2-A		18DB37 - IOAIn -00
AIn -08		20AGND


ST1A-3
ST2A-3		2CN1-A
CN2-A		19DB37 - IOAIn +01
AIn +09		2

ADCINA1

J1

59


ST1A-4
ST2A-4		2CN1-A
CN2-A		20DB37 - IOAIn -01
AIn -09		21

AGND




ST1A-3
ST2A-3		3CN1-A
CN2-A		21DB37 - IOAIn +02
AIn +10		3

ADCINA2

J1

61


ST1A-4
ST2A-4		3CN1-A
CN2-A		22DB37 - IOAIn -02
AIn -10		22

AGND




ST1A-3
ST2A-3		4CN1-A
CN2-A		23DB37 - IOAIn +03
AIn +11		4

ADCINA3

J1

63


ST1A-4
ST2A-4		4CN1-A
CN2-A		24DB37 - IOAIn -03
AIn -11		23

AGND




ST1A-3
ST2A-3		5CN1-A
CN2-A		25DB37 - IOAIn +04
AIn +12		5

ADCINB0

J1

7


ST1A-4
ST2A-4		5CN1-A
CN2-A		26DB37 - IOAIn -04
AIn -12		24

AGND




ST1A-3
ST2A-3		6CN1-A
CN2-A		27DB37 - IOAIn +05
AIn +13		6

ADCINB1

J1

9


ST1A-4
ST2A-4		6CN1-A
CN2-A		28DB37 - IOAIn -05
AIn -13		25

AGND




ST1A-3
ST2A-3		7CN1-A
CN2-A		29DB37 - IOAIn +06
AIn +14		7

ADCINB2, ADCINA4
(Reolver Sin)

J1

11, 65


ST1A-4
ST2A-4		7CN1-A
CN2-A		30DB37 - IO
Connector		AIn -06
AIn -14		26AGND


ST1A-3
ST2A-3		8CN1-A
CN2-A		31DB37 - IO
Connector		AIn +07
AIn +15		8ADCINB3, ADCINB4
(Resolver Cos)		J113, 15
ST1A-4
ST2A-4		8CN1-A
CN2-A		32DB37 - IO
Connector		AIn -07
AIn -15		27AGND


ST1A-5
ST2A-5		1CN1-A
CN2-A		33DB37 - IO
Connector		USB1-5V
USB2-5V		- -



ST1A-5
ST2A-5		2CN1-A
CN2-A		34DB37 - IO
Connector		USB1-3.3V
USB2-3.3V		- -



ST1A-5
ST2A-5		3CN1-A
CN2-A		35DB37 - IO
Connector		USB1-GND
USB2-GND		- -



ST1A-5
ST2A-5		4CN1-A
CN2-A		36DB37 - IO
Connector		USB1-VIO
USB2-VIO		- -



ST1A-5
ST2A-5		5CN1-A
CN2-A		37DB37 - IO
Connector		USB1-TXD
USB2-TXD		- -GPIO15/TZ4/XHOLDA/SCIRXDB/
MFSXB		J134
ST1A-5
ST2A-5		6CN1-A
CN2-A		38DB37 - IO
Connector		USB1-RXD
USB2-RXD		- -GPIO14/TZ3/XHOLD/SCITXDB/
MCLKXB		J184
ST1A-5
ST2A-5		7CN1-A
CN2-A		39DB37 - IO
Connector		USB1-CTS
USB2-CTS		- -



ST1A-5
ST2A-5		8CN1-A
CN2-A		40DB37 - IO
Connector		USB1-RTS
USB2-RTS		- -



Screw Terminals

40 pin connector

Signal description

TI TmdSdOCK28335 board signals




Id

Pin

Id

Pin

from Connector

Signal Name

Pin

Signal Name

Connector

Pin

Description

ST1B-1
ST2B-1		1CN1-B
CN2-B		1DB37 - IODIn +00
DIn +16		1GPIO20_EAEP1A_MXDA_CANTXBJ140
ST1B-2
ST2B-2		1CN1-B
CN2-B		2DB37 - IODIn -00
DIn -16		20



ST1B-1
ST2B-1		2CN1-B
CN2-B		3DB37 - IODIn +01
DIn +17		2GPIO21_EQEP1B_MDRA_CANRXBJ190
ST1B-2
ST2B-2		2CN1-B
CN2-B		4DB37 - IODIn -01
DIn -17		21



ST1B-1
ST2B-1		3CN1-B
CN2-B		5DB37 - IODIn +02
DIn +18		3GPIO23_EQEP1I_MFSXA_SCIRXDBJ191
ST1B-2
ST2B-2		3CN1-B
CN2-B		6DB37 - IODIn -02
DIn -18		22



ST1B-1
ST2B-1		4CN1-B
CN2-B		7DB37 - IODIn +03
DIn +19		4GPIO24_ECAP1_EQEP2A_MDXBJ135
ST1B-2
ST2B-2		4CN1-B
CN2-B		8DB37 - IODIn -03
DIn -19		23



ST1B-1
ST2B-1		5CN1-B
CN2-B		9DB37 - IODIn +04
DIn +20		5GPIO25_ECAP2_EQEP2B_MDRBJ185
ST1B-2
ST2B-2		5CN1-B
CN2-B		10DB37 - IODIn -04
DIn -20		24



ST1B-1
ST2B-1		6CN1-B
CN2-B		11DB37 - IODIn +05
DIn +21		6GPIO26/ECAP3/EQEP2I/MCLKXBJ136
ST1B-2
ST2B-2		6CN1-B
CN2-B		12DB37 - IODIn -05
DIn -21		25



ST1B-1
ST2B-1		7CN1-B
CN2-B		13DB37 - IODIn +06
DIn +22		7GPIO27/ECAP4/EQEP2S/MFSXBJ186
ST1B-2
ST2B-2		7CN1-B
CN2-B		14DB37 - IODIn -06
DIn -22		26



ST1B-1
ST2B-1		8CN1-B
CN2-B		15DB37 - IODIn +07
DIn +23		8

GPIO28/SCIRXDA/XZCS6
(shared with RS232-RXD signal)

J143
ST1B-2
ST2B-2		8CN1-B
CN2-B		16DB37 - IODIn -07
DIn -23		27



ST1B-3
ST2B-3		1CN1-B
CN2-B		17DB37 - IODIn +08
DIn +24		9GPIO29/SCITXDA/XA19
(shared with RS232-TXD signal)		J193
ST1B-4
ST2B-4		1CN1-B
CN2-B		18DB37 - IODIn -08
DIn -24		28



ST1B-3
ST2B-3		2CN1-B
CN2-B		19DB37 - IODIn +09
DIn +25		10GPIO30/CANRXA/XA18J144
ST1B-4
ST2B-4		2CN1-B
CN2-B		20DB37 - IODIn -09
DIn -25		29



ST1B-3
ST2B-3		3CN1-B
CN2-B		21DB37 - IODIn +10
DIn +26		11GPIO31/CANTXA/XA17J194
ST1B-4
ST2B-4		3CN1-B
CN2-B		22DB37 - IODIn -10
DIn -26		30



ST1B-3
ST2B-3		4CN1-B
CN2-B		23DB37 - IODIn +11
DIn +27		12GPIO32/SDAA/EPWMSYNCI/
ADCSOCAO		J145
ST1B-4
ST2B-4		4CN1-B
CN2-B		24DB37 - IODIn -11
DIn -27		31



ST1B-3
ST2B-3		5CN1-B
CN2-B		25DB37 - IODIn +12
DIn +28		13GPIO33/SCLA/EPWMSYNCO/
ADCSOCBO		J195
ST1B-4
ST2B-4		5CN1-B
CN2-B		26DB37 - IODIn -12
DIn -28		32



ST1B-3
ST2B-3		6CN1-B
CN2-B		27DB37 - IODIn +13
DIn +29		14GPIO34/ECAP1/XREADYJ146
ST1B-4
ST2B-4		6CN1-B
CN2-B		28DB37 - IODIn -13
DIn -29		33



ST1B-3
ST2B-3		7CN1-B
CN2-B		29DB37 - IODIn +14
DIn +30		15GPIO16/SPISIMOA/CANTXB/TZ5J138
ST1B-4
ST2B-4		7CN1-B
CN2-B		30DB37 - IODIn -14
DIn -30		34



ST1B-3
ST2B-3		8CN1-B
CN2-B		31DB37 - IODIn +15
DIn +31		16GPIO17/SPISOMIA/CANRXB/TZ6J188
ST1B-4
ST2B-4		8CN1-B
CN2-B		32DB37 - IODIn -15
DIn -31		35



ST1B-5
ST2B-5		1CN1-B
CN2-B		33DB9 - CANCAN1 - LO
CAN2 - LO		2GPIO18_SPICLKA_SCITXDB_
CANRXA		J139
ST1B-5
ST2B-5		2CN1-B
CN2-B		34DB9 - CANCAN1 - HI
CAN2 - HI		7GPIO19_SPISTEA_SCIRXDB_
CANTXA		J189
ST1B-5
ST2B-5		3CN1-B
CN2-B		35DB37 - IOVuser1
Vuser2		18


Referenced to 5V supply of TI board
ST1B-5
ST2B-5		4CN1-B
CN2-B		36DB37 - IOVuser1_RTN
Vuser2_RTN		37


Connected to GND
ST1B-5
ST2B-5		5CN1-B
CN2-B		3712V Power





ST1B-5
ST2B-5		6CN1-B
CN2-B		3812V Power





ST1B-5
ST2B-5		7CN1-B
CN2-B		39Power GND





ST1B-5
ST2B-5		8CN1-B
CN2-B		40Power GND





Screw Terminals

40 pin connector

Signal description

TI TmdSdOCK28335 board signals




Id

Pin

Id

Pin

from Connector

Signal Name

Pin

Signal Name

Connector

Pin

Description

ST1C-1
ST2C-1		1CN1-C
CN2-C		1DB37 - IO
Connector		DOut +00
DOut +16		1GPIO0_EPWM1A


ST1C-2
ST2C-2		1CN1-C
CN2-C		2DB37 - IO
Connector		DOut -00
DOut -16		20



ST1C-1
ST2C-1		2CN1-C
CN2-C		3DB37 - IO
Connector		DOut +01
DOut +17		2GPIO1_EPWM1B/ECAP6/MFSRB


ST1C-2
ST2C-2		2CN1-C
CN2-C		4DB37 - IO
Connector		DOut -01
DOut -17		21



ST1C-1
ST2C-1		3CN1-C
CN2-C		5DB37 - IO
Connector		DOut +02
DOut +18		3GPIO2_EPWM2A


ST1C-2
ST2C-2		3CN1-C
CN2-C		6DB37 - IO
Connector		DOut -02
DOut -18		22



ST1C-1
ST2C-1		4CN1-C
CN2-C		7DB37 - IO
Connector		DOut +03
DOut +19		4GPIO3_EPWM2B_ECAP5_MCLKRB


ST1C-2
ST2C-2		4CN1-C
CN2-C		8DB37 - IO
Connector		DOut -03
DOut -19		23



ST1C-1
ST2C-1		5CN1-C
CN2-C		9DB37 - IO
Connector		DOut +04
DOut +20		5GPIO4_EPWM3A


ST1C-2
ST2C-2		5CN1-C
CN2-C		10DB37 - IO
Connector		DOut -04
DOut -20		24



ST1C-1
ST2C-1		6CN1-C
CN2-C		11DB37 - IO
Connector		DOut +05
DOut +21		6GPIO5_EPWM3B_MFSRA_ECAP1


ST1C-2
ST2C-2		6CN1-C
CN2-C		12DB37 - IO
Connector		DOut -05
DOut -21		25



ST1C-1
ST2C-1		7CN1-C
CN2-C		13DB37 - IO
Connector		DOut +06
DOut +22		7GPIO6_EPWMN4A_EPWMSYNCI/
EPWMSYNCO


ST1C-2
ST2C-2		7CN1-C
CN2-C		14DB37 - IO
Connector		DOut -06
DOut -22		26



ST1C-1
ST2C-1		8CN1-C
CN2-C		15DB37 - IO
Connector		DOut +07
DOut +23		8GPIO7_EPWM4B_MCLKRA_ECAP2


ST1C-2
ST2C-2		8CN1-C
CN2-C		16DB37 - IO
Connector		DOut -07
DOut -23		27



ST1C-3
ST2C-3		1CN1-C
CN2-C		17DB37 - IO
Connector		DOut +08
DOut +24		9GPIO8_EPWM5A_CANTXB_
ADCSOCA0nP3


ST1C-4
ST2C-4		1CN1-C
CN2-C		18DB37 - IO
Connector		DOut -08
DOut -24		28



ST1C-3
ST2C-3		2CN1-C
CN2-C		19DB37 - IO
Connector		DOut +09
DOut +25		10GPIO9_EPWM5B_SCITXDB_ECAP3


ST1C-4
ST2C-4		2CN1-C
CN2-C		20DB37 - IO
Connector		DOut -09
DOut -25		29



ST1C-3
ST2C-3		3CN1-C
CN2-C		21DB37 - IO
Connector		DOut +10
DOut +26		11GPIO10_EPWM6A_CANRXB_
ADCASOCB0n


ST1C-4
ST2C-4		3CN1-C
CN2-C		22DB37 - IO
Connector		DOut -10
DOut -26		30



ST1C-3
ST2C-3		4CN1-C
CN2-C		23DB37 - IO
Connector		DOut +11
DOut +27		12GPIO11_EPWM6B_SCIRXDB_
ECAP4


ST1C-4
ST2C-4		4CN1-C
CN2-C		24DB37 - IO
Connector		DOut -11
DOut -27		31



ST1C-3
ST2C-3		5CN1-C
CN2-C		25DB37 - IO
Connector		DOut +12
DOut +28		13GPIO12/TZ1/CANTXB/MDXB


ST1C-4
ST2C-4		5CN1-C
CN2-C		26DB37 - IO
Connector		DOut -12
DOut -28		32



ST1C-3
ST2C-3		6CN1-C
CN2-C		27DB37 - IO
Connector		DOut +13
DOut +29		14GPIO13/TZ2/CANRXB/MDRB


ST1C-4
ST2C-4		6CN1-C
CN2-C		28DB37 - IO
Connector		DOut -13
DOut -29		33



ST1C-3
ST2C-3		7CN1-C
CN2-C		29DB37 - IO
Connector		DOut +14
DOut +30		15GPIO16/SPISIMOA/CANTXB/TZ5


ST1C-4
ST2C-4		7CN1-C
CN2-C		30DB37 - IO
Connector		DOut -14
DOut -30		34



ST1C-3
ST2C-3		8CN1-C
CN2-C		31DB37 - IO
Connector		DOut +15
DOut +31		16GPIO17/SPISOMIA/CANRXB/TZ6


ST1C-4
ST2C-4		8CN1-C
CN2-C		32DB37 - IO
Connector		DOut -15
DOut -31		35



ST1C-5
ST2C-5		1CN1-C
CN2-C		33NC





ST1C-5
ST2C-5		2CN1-C
CN2-C		34DB9 - RS232RS232-1
GND
RS232-2
GND		5



ST1C-5
ST2C-5		3CN1-C
CN2-C		35DB37 - IO
Connector		Vuser1
Vuser2		18



ST1C-5
ST2C-5		4CN1-C
CN2-C		36DB37 - IO
Connector		Vuser1_RTN
Vuser2_RTN		37



ST1C-5
ST2C-5		5CN1-C
CN2-C		37DB9 - RS232RS232-1 TXD
RS232-2 TXD		3GPIO28/SCIRXDA/XZCS0
(shared with DIn+07 signal)		J12
ST1C-5
ST2C-5		6CN1-C
CN2-C		38DB9 - RS232RS232-1
RXD
RS232-2
RXD		2GPIO29/SCITXDA/XR/W
(shared with DIn+08 signal)		J152
ST1C-5
ST2C-5		7CN1-C
CN2-C		39DB9 - RS232RS232-1
CTS
RS232-2
CTS		8



ST1C-5
ST2C-5		8CN1-C
CN2-C		40DB9 - RS232RS232-1 RTS
RS232-2 RTS		7



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