SLVUCL3 December 2022
The DRV8317HEVM has 40 pins with different functions. These pins are interfaced with the LAUNCHXLF280049C LaunchPad development kit and are mapped appropriately to receive the functionalities of the DRV8317H device. These 40 pins are grouped into 4 ports in respect to the LAUNCHXL-F280049C (J1 to J4). Table 4-5 and Table 4-6 list the interfacing of these ports of the DRV8317HEVM headers J3 and J4.
J3 Pin Number | DRV8317HEVM Function | LAUNCHXL-F280049C Function | Description |
|---|---|---|---|
1 | 3V3 | +3.3 V | 3.3 V LaunchPad Supply |
2 | 5 V supply | +5 V | 5 V Boost from LaunchPad |
3 | Not used | PGA1/3/5_GND | Not used |
4 | AGND | GND | GND connection |
5 | Not used | GPIO13/SCIBRX | Not used |
6 | VSENA | ADCINA5 | Phase A Voltage Sense |
7 | HALLC | GPIO40/SCIBTX | Hall sensor C from motor |
8 | VSENB | ADCINB0 | Phase B Voltage Sense |
9 | nSLEEP (DNP) | NC | For internal use only |
10 | VSENC | ADCINC2 | Phase C Voltage Sense |
11 | Not used | ADCINB3/VDAC | Not used |
12 | VSENVM | ADCINB1 | VM Bus Voltage Sense |
13 | SCLK | SPIACLK | SPI Clock (DRV8317S only) |
14 | ISENA | ADCINB2 | Phase A low side Current Sense |
15 | nFAULT (DNP) | ADCINC4 | For internal use only |
16 | ISENB | ADCINC0 | Phase B low side Current Sense |
17 | nSLEEP | GPIO37 | Active-low input to sleep pin |
18 | ISENC | ADCINA9 | Phase C low side Current Sense |
19 | nFAULT | GPIO35 | Active-low output from fault pin |
20 | C_TAP | ADCINA1 | ADC for Center Tap sensing |
J4 Pin Number | DRV8317HEVM Function | LAUNCHXL-F280049C Function | Description |
|---|---|---|---|
1 | INHA | GPIO10/PWM6A | PWM used to switch High-side FET of Phase A |
2 | AGND | GND | GND connection |
3 | INLA | GPIO11/PWM6B | PWM used to switch Low-side FET of Phase A |
4 | nSCS | SPIASTE | SPI active-low chip select (DRV8317S only) |
5 | INHB | GPIO8/PWM5A | PWM used to switch High-side FET of Phase B |
6 | Not used | NC | Not used |
7 | INLB | GPIO9/PWM5B | PWM used to switch Low-side FET of Phase B |
8 | Not used | NC | Not used |
9 | INHC | GPIO4/PWM3A | PWM used to switch High-side FET of Phase |
10 | Not used | XRSn | Not used |
11 | INLC | GPIO5/PWM3B | PWM used to switch Low-side FET of Phase C |
12 | SDI | SPIASIMO | SPI data input |
13 | HALLA | GPIO58 | HALL sensor A from motor |
14 | SDO | SPIASOMI | SPI data output (DRV8317S only) |
15 | HALLB | GPIO30 | HALL sensor B from motor |
16 | Not used | GPIO39 | Not used |
17 | Not used | GPIO18/XCLKOUT (not connected) | Not used |
18 | Not used | GPIO23/LED4 | LED reserved on LaunchPad |
19 | CSA_REF (DNP) | GPIO25 | For internal use only |
20 | MCU_LED | GPIO59 | Visual feedback for LaunchPad connection |