SPRUJA7A November 2023 – April 2024
Connectors | |
---|---|
J1 | FSI Header |
J2 | Type C USB Connector - Data Peripheral to MCU. This connector supports DRP for dynamic switching between host mode (DFP) and device mode (UFP). |
J3 | Emulation/UART connector/Power - USB-C connector used to provide XDS110 emulation and USB-to-UART (SCI) communication through MSP432 logic. S4 determines which connections are enabled to the MCU. The USB-C connector also provides power on the controlCARD. |
LEDs | |
---|---|
D1 | Controlled by GPIO31 with negative logic (red). |
D2 | Controlled by GPIO34 with negative logic (red). |
D3 | Turns on (green) when 3.3V is supplied to the controlCARD from the on-board LDO (U4). |
D4/D5 | LEDs controlled by XDS110. |
D6 | Turns on (red) when 5V is
supplied to the controlCARD (5V can be supplied either through the USB-C connector or externally through the HSEC connector). |
D7 | Turns on when JTAG logic is powered on (green). |
D8 | Turns on when USB Data Connector (J2) is operating in host mode (DFP). |
D9/D10 | Output of onboard transformer. |
Resistors and Capacitors | |
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R26-R52 | ADC RC input filter resistors: Series resistors which can be used to create an RC filter on the input of the ADC. |
C29-C55 | ADC RC input filter capacitors: Optional capacitors, not populated by default, for the ADC RC filter of the input. |
Switches | |
---|---|
S1 | Boot Mode Switch: Controls the Boot Options of the F28P55x device, see Table 3-6. For a full description, see the device specific data sheet. |
S2 | Reset switch: Switch connected to the XRSn line of the F28P55x device. Pressing this button pulls the device reset low. |
S3 |
ADC VREFHI Control Switch:
|
S4 | Isolated emulation and UART communication enable switches: |
S4 Position 1 – USB JTAG
Enable:
|
|
S4 Position 2 – USB UART
communication enable:
|
Test Points | |
---|---|
TP1 | XRSn of F28P55X device: Connected to the XRSn pin of the F28P55x device |
TP2 | HSEC 5.0V input: 5.0V input provided to the controlCARD |
TP3 | Filtered Digital 3.3V: Provides digital power to the F28P55x device |
TP4 | Filtered Analog 3.3V: Provides analog power to the F28P55x device |
TP5 | Filtered 1.2V: VDD core supply to the F28P55x device |
TP6 | Device Ground |
TP7 | USB 5.0V input: This is the 5V supply from the USB-C connector |
TP8 | Unfiltered 3.3V: Provides power to the MSP432 device |
TP9 | USB GND input: This GND from the USB-C connector |
TP10 | Unfiltered 3.3V: Output of the 5V to 3.3V LDO which provides 3.3V power to the F28P55x side of the board |
TP11 | 5V input: Output of the power selection switch |
Mode | Switch Position 1 (left switch, GPIO24) | Switch Position 2 (right switch, GPIO32) | Boot From |
---|---|---|---|
00 | 0 (down) | 0 (down) | Parallel I/O |
01 | 0 (down, default) | 1 (up, default) | SCI / Wait Boot |
02 | 1 (up) | 0 (down) | CAN |
03 | 1 (up) | 1 (up) | Flash / USB |