SAMRH707
SAMRH707F18-EK Evaluation Kit User Guide
Introduction
The SAMRH707F18-EK is an evaluation platform designed for evaluating the Radiation-Hardened Arm -M7 SAMRH707 microcontroller.
Cortex X Integrated Development Environment (IDE) and provides easy access to the SAMRH707 device features. It supports stand-alone debuggers and includes an on-board embedded debugger. When the on-board debugger is used, no external tool is required to debug the embedded code or to program the microcontroller.
The SAMRH707 evaluation kit is supported by Microchip’s MPLAB® The Xplained Pro headers enable support for additional peripherals to extend the features of the board and ease the development of custom designs.
Features
- SAMRH707 Microcontroller
– Embedded ceramic package
– Optional plastic package - Human Machine Interface
– One mechanical Reset pushbutton
– One mechanical NMIC pushbutton
– Four mechanical user pushbuttons
– Six user LEDs
– DIP switch for boot setup - On-board Memories
– 512K x 8 Flash
– 512K x 8 SRAM
– 64 Mbit SPI Flash - On-board Clock Management
– 32.768 kHz crystal
– 10 MHz oscillator - Communication Interfaces
– One UART emulation through USB debug port
– Two CAN ports through extension header - Embedded ATA6563 transceivers
– Two SpaceWire ports - Micro D-Sub 9 connectors
- Direct use of LVDS mode
- Optional use of TTL mode (add-on board)
– Two 1553 ports - TRB Connectors
- Debug Resources
– JTAG debug connector
– Trace connector
– Embedded debugger (PKoB)
• Programming and debugging
• USB micro-B debug port
• Virtual COM port (CDC)
• One yellow status LED
• One green active LED - Extension Capability
– Three Xplained Pro extension headers
• One General Purpose
• One Motor Control
• One ADC
– Processor pins extension headers (4)
• Plastic package add-on board - Analog
– 3 DAC outputs
• SMB Connectors
• HE10 Connectors
• Buzzer
– 16 ADC inputs
• 2 inputs connected to SMB Connectors
• 16 inputs connected to extension headers
• 1 input connected to a potentiometer - +5V External Power Supply
– USB-C port
– One power status LED
References
- SAMRH707 Device Datasheet, DS60001634, Microchip Technology Inc.
- Cortex M7 Technical Reference Manual, Arm Limited (https://documentation-service.arm.com/static/5e906b038259fe2368e2a7bb?token=)
- MPLAB X IDE User’s Guide, DS50002027, Microchip Technology Inc. (www.microchip.com/downloads/en/DeviceDoc/50002027D.pdf)
Kit Overview
The SAMRH707 evaluation kit consists of the following boards:
- One main board
- One SpaceWire Add-on board (optional, provided on demand)
1.1 Main Board
The main board offers a set of features that enables customers to prototype their own application with the RadiationHardened SAMRH707 microcontroller. The following figure shows the board layout of SAMRH707F18-EK.
Figure 1-1. SAMRH707F18-EK Board Layout
1.2 SpaceWire Add-on Board
The SpaceWire link can work in LVDS mode or TTL mode. The main board supports natively the LVDS mode only.
An add-on board (see Figure 1-2 ) must be connected to the main board to support the TTL mode after having configured the solder PADs (see Figure 1-3).
Figure 1-2. SpaceWire TTL Add-on Board
Figure 1-3. Solder PADs
1.2.1 TTL Mode
The add-on board is connected to the SPW TTL/LVDS Extension Header (J17).
All 16 solder PADs (J25-J40) must be disconnected by removing the drops of solder before inserting the add-on board.
1.2.2 LVDS Mode
J17 connector is not used.
All 16 solder PADs (J25-J40) are connected by default. The connections are made by drops of solder. The solder PADs are located on the bottom side of the main board.
Getting Started
This section provides information about the software and hardware tools for the SAMRH707 evaluation kit.
2.1 Software Development Tools
MPLAB X IDE is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, and debug. The MPLAB X IDE ecosystem includes many free plugins and compilers.
2.2 Hardware Development Tools
The main board supports natively three different debugging tools:
- An embedded debugger
- An external debugger
- A trace debugger
2.2.1 Embedded Debugger
The PKoB embedded programmer/debugger is accessible through the debugging USB port (J12).
No external tool is required to debug the embedded code or to program the microcontroller.
2.2.2 External Debugger
The Debugger Header (J5) supports an external programmer/debugger device that must be acquired separately. It can be one the following devices:
- J32 programmer/debugger (P/N: DV164232). It is available at: https://www.microchip.com/DevelopmentTools/ProductDetails/PartNO/DV164232
Figure 2-2. J32 Programmer/Debugger (P/N: DV164232)
- ICD 4 In-Circuit Debugger (DV164045). It is available at: https://www.microchip.com/DevelopmentTools/ProductDetails/DV164045
Figure 2-3. ICD 4 In-Circuit Debugger (DV164045)
- PICkit 4 In-Circuit Debugger (PG164140). It is available at: https://www.microchip.com/Developmenttools/ProductDetails/PG164140
Figure 2-4. PICkit 4 In-Circuit Debugger (PG164140)
The devices described above can be possibly used with the following adapter: - Debugger Board (AC102015). It is available at: www.microchip.com/Developmenttools/ProductDetails/AC102015
Figure 2-5. Debugger Adapter Board (AC102015)
2.2.3 The Trace Debugger
The Trace Header (J4) supports external trace/programmer/debugger device that must be acquired separately.
Hardware Overview
3.1 Human Machine Interface
This section provides information about the LEDs, DIP switch, and pushbuttons in the evaluation board.
3.1.1 LEDs
The SAMRH707 evaluation kit has eight green LEDs, one red LED, and one yellow LED.
The LED specification is provided in the following table.
Table 3-1. LED Specification
| P/N | Manufacturer |
| LG R971-KN-1 | OSRAM |
The following table lists the LED pin connections.
Table 3-2. LED Pin Connections
| Signal Name | Function | Color | SAMRH707 Pin | Shared Functionality | Peripheral |
| PWR_SU | +5V Input Status | Green | — | — | — |
| BOARD_RESET | Board Reset State | Red | — | — | — |
| ACTIVE | Embedded Debugger Communication Status | Green | — | — | — |
| STATUS | Embedded Debugger State | Yellow | — | — | — |
| LED0 | General Purpose | Green | PB11 | PWMC0_PWMH0 TCLK3 | A
C |
| LED1 | General Purpose | Green | PB12 | PWMC0_PWML0 TCLK4 | A
C |
| LED2 | General Purpose | Green | PB13 | PWMC0_PWMH1 TIOA4 | A
C |
| LED3 | General Purpose | Green | PB14 | PWMC0_PWML1 TIOB4 | A
C |
| LED4 | General Purpose | Green | PA17 | FLEXCOM0_IO2 | A |
| LED5 | General Purpose | Green | PA18 | FLEXCOM0_IO3 | A |
3.1.2 Mechanical Buttons
The SAMRH707 evaluation kit has six pushbuttons:
- One Reset button
- One NMIC button
- Four general purpose buttons connected to the I/O lines of the microcontroller.
The following table provides functions of pushbuttons.
Table 3-3. Mechanical Buttons Pins Connections
| Signal Name | Function | SAMRH707 Pin | Shared Functionality | Peripheral |
| BOARD_RESET | System Reset | NRST | — | — |
| NMIC | Non-Maskable Interrupt | NMIC_NMI | — | — |
| PB0 (Pushbutton) | General Purpose | PA31
(I/O) |
PCK1 FLEXCOM1_IO6 | A
B |
| PB1
(Pushbutton) |
General Purpose | PB0
(I/O) |
TIOA2 | A |
| PB2
(Pushbutton) |
General Purpose | PB1
(I/O) |
PWMC0_PWMEXTRG1 TCLK5 | B
C |
| PB3
(Pushbutton) |
General Purpose | PB2
(I/O) |
RTCOUT0 | A |
3.1.3 DIP Switch (SW7)
The evaluation kit has a DIP switch to configure the SAMRH707 default setup after Reset. The Boot mode and the associated configuration feature applicable to the external memories can be configured through this DIP switch. The following convention has been implemented: On = 0 and Off = 1.
Table 3-4. DIP Switch Function
| DIP Switch | Function | SAMRH707 Pin | Notes |
| SW7-1 | BOOT_MODE [0] | PC30 | — |
| SW7-2 | BOOT_MODE [1] | PC29 | — |
| SW7-3 | ROM Phase Selection | PA19 | — |
| SW7-4 | CFG2 | PA25 | The use of SW7-4 and SW-5 is exclusive. Only one can be configured at a time. SW7-5 is reserved for internal use and should not be set. |
| SW7-5 | PC27 | ||
| SW7-6 | Not Used | ||
Table 3-5. DIP Switch Configuration
| SW7-2 | SW7-1 | SW7-3 | SW7-4 | SW7-5 | Active Memory | Configurations | Default | ||
| On | On | X | X | X | Internal Flash Memory (HEFC) | HECC Controller | Internal Flash Memory (HEFC) |
||
| Off | X | X | On | External Flash (HEMC) (ROM/Flash/SRAM) |
HECC Off | Internal Use Only | |||
| X | X | Off | HECC On | ||||||
| Of | X | On | X | HECC Off | All microcontrollers | ||||
| X | Off | X | HECC On | ||||||
| Of | On | Off | On | X | Internal ROM Run Phase | SpaceWire 0 LVDS mode |
Active TM/TC Link | ||
| Off | SpaceWire 0 TTL mode | ||||||||
| X | On | FlexCOM 1 UART mode | |||||||
| X | On | Of | X | Internal ROM Maintenance Phase |
FlexCOM 1 UART mode | ||||
| On | Off | SpaceWire 0 LVDS mode | |||||||
| Off | SpaceWire 0 TTL mode | ||||||||
3.2 Power Distribution
The evaluation kit is powered by an external 5V. The following internal power supplies are provided by a Configurable Power Management Device (Microchip MIC 7401):
- 3.3V for SAMRH707 I/Os, analog, and digital peripherals
- 1.8V SAMRH707 core and PLLs
- 1.25V for SpaceWire reference voltage
- 5V for CAN transceivers
3.2.1 Microcontroller Power Supplies
The microcontroller can be supplied power from several power supplies. Part of these power supplies are configurable. The configurations are described in the following tables and figures and a part of them are made from the PCB’s bottom side as shown in the bottom side figures.
Table 3-6. Microcontroller Power Supply Configurations
| Microcontroller Pins | Common Power Ground (Default) | Separate Grounds | ||
| VDDIO_ADC/GNDIO_ADC VDDIO_DAC/GNDIO_DAC |
PWR_DIGITAL_3V3 GND |
R35: On / R33: Off R40: On / R39: Off |
PWR_ANALOG2_3V3 ANALOG2_GND |
R35: Off / R33: On / R37: On / R38: On R40: Off / R39: On |
| ANA_3V3/ANA_GND AD_DAC_VREFIN/ AD_DAC_GNDVREF |
PWR_DIGITAL_3V3 GND | R36: On / R34: Off R41: On | PWR_ANALOG1_3V3 ANALOG1_GND | R36: Off / R34: On R41: On |
| ANALOG1_GND ANALOG2_GND |
GND
GND |
R42: On / R44: Off R43: On / R44: Off |
GND GND |
R42: Off / R44: Off R43: Off / R44: Off |
3.3 Reset Network
The following schematics show the board’s Reset network.
3.4 External Memory
The evaluation kit has the following memory devices:
- 512K x 8 Flash
- 512K x 8 SRAM
- 64 Mbit SPI Flash (can be used with the embedded bootloader)
Table 3-7. Memory Devices
| Memory Type | Memory Size | Device P/N | Manufacturer |
| Flash | 512×8 | SST39VF040 | Microchip Technology |
| SRAM | 512×8 | CY62148EV30LL-45ZSXI | Cypress |
| SPI Flash | 64 Mbit | SST26VF064BA | Microchip Technology |
3.5 Connectors
The following section describes the implementation of the relevant connectors and headers on the SAMRH707F18EK evaluation kit and their connection to the microcontroller. The tables also provide the signals that are shared between the headers and on-board functionality.
3.5.1 Board Power Supply
The board’s power is supplied through an USB C connector with the following pin assignment.
Table 3-8. USB C connector
| Pin | Name | Description | Pin | Name | Description |
| A1 | GND | Ground | B12 | GND | Ground |
| A2 | TX1+ | Not used | B11 | RX1+ | Not used |
| A3 | TX1- | B10 | RX1- | ||
| A4 | Vbus | 5V power supply | B9 | Vbus | 5V power supply |
| A5 | CC1 | Not used | B8 | SBU2 | Not used |
| A6 | D+ | B7 | D- | ||
| A7 | D- | B6 | D+ | ||
| A8 | SBU1 | B5 | CC2 | ||
| A9 | Vbus | 5V power supply | B4 | Vbus | 5V power supply |
| A10 | RX2- | Not used | B3 | TX2- | Not used |
| A11 | RX2+ | B2 | TX2+ | ||
| A12 | GND | Ground | B1 | GND | Ground |
3.5.2 Test Points
The board provides the following test points for signal monitoring or measuring.
Table 3-9. List of Test Points
| Name | Signal | Application |
| TP1 | GND | — |
| TP2 | ANALOG1_GND | — |
| TP3 | ANALOG2_GND | — |
| ………..continued | ||
| Name | Signal | Application |
| TP4 | PWR_5V | CAN Transceivers |
| TP5 | PWR_1V25 | Space Wire Reference Voltage |
| TP6 | PWR_DIGITAL_3V3 | SAMRH707 I/Os, Digital Peripherals |
| TP7 | PWR_ANALOG1_3V3 | ADC, DAC Reference Voltage (if selected) |
| TP8 | PWR_ANALOG2_3V3 | ADC, DAC I/Os (if selected) |
| TP9 | PWR_1V8 | SAMRH707 Core and PLLs |
| TP10 | Board Reset | — |
| TP12 – TP16 | GND | — |
| TP17 | XIn32 | 32,768 KHz Real Time Clock |
| TP18 | XIn | 10 MHz Microcontroller Main Clock |
| TP19 | Xin PKoB | 12 MHz Embedded Debugger Clock |
3.5.3 Board Extension Headers
The SAMRH707F18-EK extension headers J18, J19, and J20 allow to connect add-on boards to expand the evaluation kit features. The headers are compatible with the Microchip Xplained Pro interface. They have a pitch of 2.54 mm.
Table 3-10. General Purpose Extension Header (J18)
| Header Pin | SAMRH707 Pin |
Alternate Function |
PIO Periph. A |
PIO Periph. B |
PIO Periph. C |
PIO Periph. D |
PIO Periph. E |
| 1 [IDEX] | — | — | — | — | — | — | — |
| 2 [GND] |
GND |
||||||
| 3 [ADC+] | PA14 | AD14 | — | FLEXCOM1_ IO6 | — | PCCDATA14 | — |
| 4 [ADC-] | PA15 | AD15 | — | FLEXCOM1_ IO5 | — | PCCDATA15 | — |
| 5 [GPIO] | PA17 | — | FLEXCOM0 _IO2 | — | — | — | — |
| 6 [GPIO] | PA18 | — | FLEXCOM0 _IO3 | — | — | — | — |
| 7 [PWM+] | PB15 | — | PWMC0_ PWMH2 | — | TIOB5 | — | — |
| 8 [PWM-] | PB16 | — | PWMC0_ PWML2 | FLEXCOM3_ IO5 | TIOA5 | — | — |
| 9 [GPIO] | PB20 | — | — | FLEXCOM3_ IO4 | — | — | — |
| ………..continued | |||||||
| Header Pin | SAMRH707 Pin |
Alternate Function |
PIO Periph. A |
PIO Periph. B |
PIO Periph. C |
PIO Periph. D |
PIO Periph. E |
| 10 [GPIO] | PB19 | — | — | FLEXCOM3_ IO6 | TCLK2 | — | — |
| 11 [TWI_SDA] | PD8 | — | PCK2 | NWAIT | FLEXCOM2_ IO0 | — | — |
| 12 [TWI_SCL] | PD9 | — | — | RTCOUT1 | FLEXCOM2_ IO1 | — | — |
| 13 [UART_RX] | PD9 | — | — | RTCOUT1 | FLEXCOM2_ IO1 | — | — |
| 14 [UART_TX] | PD8 | — | PCK2 | NWAIT | FLEXCOM2_ IO0 | — | — |
| 15 [SPI_SS] | PB18 | — | PWMC0_ PWML3 | FLEXCOM3_ IO3 | TCLK0 | — | — |
| 16 [SPI_MOSI] | PB22 | — | — | FLEXCOM3_ IO0 | — | — | — |
| 17 [SPI_MISO] | PB21 | — | — | FLEXCOM3_ IO1 | — | — | — |
| 18 [SPI_SCK] | PB17 | — | PWMC0_ PWMH3 | FLEXCOM3_ IO2 | TIOB1 | — | — |
| 19 [GND] | GND | ||||||
| 20 [VCC] | PWR_DIGITAL_3V3 | ||||||
Table 3-11. Motor Control Extension Header (J19)
| Header Pin | SAMRH707 Pin |
Alternate Function |
PIO
Periph. A |
PIO Periph. B |
PIO Periph. C |
PIO Periph. D |
PIO Periph. E |
| 1 [IDEX] | — | — | — | — | — | — | — |
| 2 [GND] | GND | ||||||
| 3 [ADC+] | PA12 | AD12 | — | — | — | PCCDATA12 | — |
| 4 [ADC-] | PA13 | AD13 | — | — | — | PCCDATA13 | — |
| 5 [GPIO] | PA10 | AD10 | — | — | — | PCCDATA10 | — |
| 6 [GPIO] | PA11 | AD11 | — | — | — | PCCDATA11 | — |
| 7 [PWM+] | PB11 | — | PWMC0_ PWMH0 | — | TCLK3 | — | — |
| 8 [PWM-] | PB12 | — | PWMC0_ PWML0 | — | TCLK4 | — | — |
| ………..continued | |||||||
| Header Pin | SAMRH707 Pin |
Alternate Function |
PIO Periph. A |
PIO Periph. B |
PIO Periph. C |
PIO Periph. D |
PIO Periph. E |
| 9 [GPIO] | PB01 | — | — | PWMC0_ PWMEXTRG1 | TCLK5 | — | — |
| 10 [GPIO] | PA16 | — | — | FLEXCOM1_ IO5 | PWMC0_ PWMFI2 | — | — |
| 11 [TWI_SDA] | CANH0 | ||||||
| 12 [TWI_SCL] | CANL0 | ||||||
| 13 [UART_RX] | CANH1 | ||||||
| 14 [UART_TX] | CANL1 | ||||||
| 15 [SPI_SS] | PB14 | — | PWMC0_ PWML1 | — | TIOB4 | — | — |
| 16 [SPI_MOSI] | PA29 | — | FLEXCOM1_ IO3 | TIOA0 | PWMC0_ PWMFI0 | TRACED0 | |
| 17 [SPI_MISO] | PA30 | — | PCK1 | FLEXCOM1_ IO2 | TIOB0 | PWMC0_ PWMFI1 | TRACED1 |
| 18 [SPI_SCK] | PB13 | — | PWMC0_ PWMH1 | — | TIOA4 | — | — |
| 19 [GND] | GND | ||||||
| 20 [VCC] | PWR_DIGITAL_3V3 | ||||||
Table 3-12. ADC/PCC Extension Header (J20)
| Header Pin | SAMRH707 Pin |
Alternate Function |
PIO Periph. A |
PIO Periph. B |
PIO Periph. C |
PIO Periph. D |
PIO Periph. E |
| 1 [IDEX] | PWR_ANALOG2_3V3 | ||||||
| 2 [GND] | GND | ||||||
| 3 [ADC+] | PA0 | AD0 | — | — | — | PCCDATA0 | — |
| 4 [ADC-] | PA1 | AD1 | — | — | — | PCCDATA1 | — |
| 5 [GPIO] | PA2 | AD2 | — | — | — | PCCDATA2 | — |
| 6 [GPIO] | PA3 | AD3 | — | — | — | PCCDATA3 | — |
| 7 [PWM+] | PA4 | AD4 | — | — | — | PCCDATA4 | — |
| 8 [PWM-] | PA5 | AD5 | — | — | — | PCCDATA5 | — |
| 9 [GPIO] | HE10_NMIC | ||||||
| 10 [GPIO] | BOARD_RESET_EXT_N | ||||||
| 11 [TWI_SDA] | PA6 | AD6 | — | — | — | PCCDATA6 | — |
| ………..continued | |||||||
| Header Pin | SAMRH707 Pin |
Alternate Function |
PIO Periph. A |
PIO Periph. B |
PIO Periph. C |
PIO Periph. D |
PIO Periph. E |
| 12 [TWI_SCL] | PA7 | AD7 | — | — | — | PCCDATA7 | — |
| 13 [UART_RX] | PA8 | AD8 | — | — | — | PCCDATA8 | — |
| 14 [UART_TX] | PA9 | AD9 | — | — | — | PCCDATA9 | — |
| 15 [SPI_SS] | PA20 | — | FLEXCOM0_ IO6 | — | TCLK1 | PCCCLK | TRACECLK |
| 16 [SPI_MOSI] | PA25 | CFG2 | FLEXCOM0_ IO4 | — | TCLK2 | PCCDEN2 | TDO_ TRACESWO |
| 17 [SPI_MISO] | PA27 | — | FLEXCOM0_ IO5 | — | TIOA1 | PCCDEN1 | TRACED3 |
| 18 [SPI_SCK] | — | ||||||
| 19 [GND] | GND | ||||||
| 20 [VCC] | PWR_DIGITAL_3V3 | ||||||
3.5.4 SpaceWire Communication Ports
The evaluation kit has two SpaceWire ports using Micro D9 Female connectors. These ports can be used in LVDS mode or TTL mode (See 1.2. SpaceWire Add-on Board)
Table 3-13. Port 0 Connections (J16)
| Port 0 | Signal Name | Function |
| J16-1 | SPW0_DIN_P | SpaceWire Data Input 0 |
| J16-6 | SPW0_DIN_N | |
| J16-2 | SPW0_SIN_P | SpaceWire Strobe Input 0 |
| J16-7 | SPW0_SIN_N | |
| J16-3 | GND | |
| J16-8 | SWP0_SOUT_P | SpaceWire Strobe Output 0 |
| J16-4 | SWP0_SOUT_N | |
| J16-9 | SPW0_DOUT_P | SpaceWire Data Output 0 |
| J16-5 | SPW0_DOUT_N | |
Table 3-14. Port 1 Connections (J15)
| Port 1 | Signal Name | Function |
| J15-1 | SPW1_DIN_P | SpaceWire Data Input 1 |
| J15-6 | SPW1_DIN_N |
| ………..continued | ||
| Port 1 | Signal Name | Function |
| J15-2 | SPW1_SIN_P | SpaceWire Strobe Input 1 |
| J15-7 | SPW1_SIN_N | |
| J15-3 | GND | |
| J15-8 | SWP1_SOUT_P | SpaceWire Strobe Output 1 |
| J15-4 | SWP1_SOUT_N | |
| J15-9 | SPW1_DOUT_P | SpaceWire Data Output 1 |
| J15-5 | SPW1_DOUT_N | |
3.5.5 1553 Communication Ports
The evaluation kit has one 1553 Communication link with two ports supporting the Bus Controller and Remote Terminal configurations as defined in the MIL-STD-1553B standard. The 1553 port A and B are connected to the on-board HI-1579 physical transceiver. The following tables show the pin assignment of port A and B connectors.
Table 3-15. Port A (J13)
| PortA | Signal Name | Function |
| J13-1 | BUSA_DIFF_P | MIL-STD-1533 bus driver A, positive signal |
| J13-2 | BUSA_DIFF_N | MIL-STD-1553 bus driver A, negative signal |
| J13-3 | MNT1 | GND |
| J13-4 | MNT2 | |
| J13-5 | MNT3 | |
| J13-6 | MNT4 |
Table 3-16. Port B (J14)
| PortA | Signal Name | Function |
| J13-1 | BUSB_DIFF_P | MIL-STD-1533 bus driver B, positive signal |
| J13-2 | BUSB_DIFF_N | MIL-STD-1553 bus driver B, negative signal |
| J13-3 | MNT1 | GND |
| J13-4 | MNT2 | |
| J13-5 | MNT3 | |
| J13-6 | MNT4 |
The following table shows connections between SAMRH707 and the 1553 transceiver.
Table 3-17. 1553 Connections
| 1553 Transceiver | Function | SAMRH707 Pin | Functionality | Peripheral |
| TXA | Complemented and Nominal Reception line (to transceiver) | PB25 | ATXOUTP | A |
| NXTA | PB26 | ATXOUTN | A | |
| RXA | Complemented and Nominal Reception line (from transceiver) | PB27 | ARXINP | A |
| NRXA | PB28 | ARXINN | A | |
| TXB | Redundant Complemented and Redundant Nominal Reception line (to transceiver) | PD0 | BTXOUTP | A |
| NTXB | PD1 | BTXOUTN | A | |
| RXB | Redundant Complemented and Redundant Nominal Reception line (from transceiver) | PD2 | BRXINP | A |
| NRXB | PD3 | BRXINN | A |
3.5.6 Embedded Debugger USB Port
The composite debugger USB port provides access to the PKoB embedded debugger and the virtual COM port. Its pin assignment is provided in the following table.
Table 3-18. Embedded Debugger Port
| Pin | Name | Description |
| 1 | VBUS | +5V |
| 2 | D- | Data |
| 3 | D+ | |
| 4 | ID | Not used |
| 5 | GND | Ground |
3.5.7 Microcontroller Extension Headers
Four extension headers (J21, J22, J23, and J24) located around SAMRH707 provide access to all the microcontroller pins.
3.5.8 Cortex Debug Connectors
The evaluation kit has a 2×10 pin Cortex Debug Header (J5) compliant with the SWD interface used to attach external debuggers such as Microchip’s J32 programmer/debugger, ICD 4, and PICkit 4 In-Circuit debuggers.
Table 3-19. SWD Header (J5)
| Header Pin | Name | SAMRH707 Pin |
| 1-2 | PWR_DIGITAL_3V3 | |
| 3-11-17-19 | NC | — |
| 4-6-8-10-12-14-16-18-20 | GND | |
| 5 | TDI | PA26 |
| 7 | TMS | PB23 |
| ………..continued | ||
| Header Pin | Name | SAMRH707 Pin |
| 9 | TCK/SWCLK | PB24 |
| 13 | TDO/SWO | PA25 |
| 15 | NRESET | – |
The evaluation kit has a 2×10 pin Cortex Debug Header (J4) compliant with Embedded Trace Module (ETM) that can be used to attach external trace debuggers to the SAMRH707.
Table 3-20. Trace Connector (J4)
| Header Pin | Name | SAMRH707 Pin |
| 1 | PWR_DIGITAL_3V3 | |
| 2 | SWDIO/TMS | PB23 |
| 4 | SWCLK/TCK | PB24 |
| 6 | SWO/TDO | PB25 |
| 8 | TDI | PA26 |
| 10 | NRESET | — |
| 12 | TRACECLK | PA20 |
| 14 | TRACED0 | PA29 |
| 16 | TRACED1 | PA30 |
| 18 | TRACED2 | PA28 |
| 20 | TRACED3 | PA27 |
| 7-11-13 | NC | — |
| 3-5-9-15-17-19 | GND | |
3.6 Peripherals
3.6.1 Crystals
The SAMRH707 evaluation kit embeds the following crystals.
Table 3-21. Crystals
| Frequency | Function | Device | Dedicated Test Point |
| 10 MHz | Main Clock | SAMRH707 | TP18 |
| 32.765 KHz | Real-Time Clock | SAMRH707 | TP17 |
| 12 MHz | Main Clock | Embedded Debugger | TP19 |
| 24 MHz | Main Clock | Virtual COM Port | — |
3.6.2 CAN Communication Ports
The evaluation kit has two CAN communication ports compliant with ISO 11898-1:2015 that meet Bosch CAN-FD specifications.
CAN0 and CAN1 ports are connected to on-board ATA6563 physical transceivers. The following table shows connections between SAMRH707 and the CAN transceivers.
Table 3-22. CAN0 Connections
| CAN Bus | CAN Transceiver | SAMRH707 Pin | Functionality | Peripheral |
| TXD0 | PB7 | CANTX0 | A | |
| CANL0/CANH0 | RXD0 | PB8 | CANRX0 | A |
| CAN0 Standby | PA23 | GPIO | — | |
| GND | GND | |||
Table 3-23. CAN1 Connections
| CAN Bus | CAN Transceiver | SAMRH707 Pin | Functionality | Peripheral |
| TXD1 | PB10 | CANTX1 | A | |
| CANL1/CANH1 | RXD1 | PB9 | CANRX1 | A |
| CAN1 Standby | PA24 | GPIO | — | |
| GND | GND | |||
3.6.3 UART
The evaluation kit has one UART module that performs communication through USB. The UART Tx and Rx are connected to an on-board CP2103 UART-To-USB converter. The following table shows connections between SAMRH707 and the UART-To-USB converter.
Table 3-24. UART Connections
| UART-To-USB Converter | SAMRH707 Pin | Functionality | Peripheral |
| TXD | PB4 | FLEXCOM1_IO0 | B |
| ………..continued | |||
| UART-To-USB Converter | SAMRH707 Pin | Functionality | Peripheral |
| RXD | PB5 | FLEXCOM1_IO1 | B |
| GND | GND | ||
3.6.4 Analog Digital Converter (ADC)
The board embeds hardware resources that can be connected to specific channels of the SAMRH707’s ADC.
Channels AD10 and AD11 can be fed by the external signals injected on the SMB male connector (AN2-3). Channel AD15 can be fed by the variable DC voltage supplied by the embedded 50K potentiometer (POT).
Figure 3-6. ADC Analog Input Channels
3.6.5 Digital Converter (DAC)
The board embeds hardware resources that enables use of analog output channels of the SAMRH707’s DAC.
Channels DAC0, DAC1, and DAC2 are connected to DAC0, DAC1, and DAC2 SMB connectors respectively.
Additionally, the DAC2 output can drive a buzzer. Specification of the buzzer is provided in the following table.
Table 3-25. Buzzer Specification
| P/N | Manufacturer |
| KMTG1102-A1 | Kingstate |
Figure 3-7. DAC Analog Output Channels
Revision History
The revision history table describes the changes that were implemented in the document. The changes are listed by revision, starting with the most current publication.
Table 4-1. Revision History
| Revision | Date | Description |
| B | 02/2022 | Updated SAMRH707-EK to SAMRH707F18-EK |
| A | 11/2021 | The first publication of the document (Internal release). |
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ISBN: 978-1-5224-9775-2
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User Guide
DS60001744B-page 32
Documents / Resources
 |
MICROCHIP SAMRH707 EK Evaluation Kit [pdf] User Guide SAMRH707 EK Evaluation Kit, SAMRH707, EK Evaluation Kit, Evaluation Kit |
