Introduction
The PolarFire® SoC FPGA Icicle Kit (MPFS250T-FCVG484EES) is an RoHS-compliant, cost-optimized kit with general-purpose interfaces that enables evaluation of features of the PolarFire SoC family of FPGAs.
1. Getting Started
The PolarFire SoC Icicle Kit supports the following interfaces:
- PCI Express Root Port
- eMMC (DDR Model/HS200/HS400)
- SD card
- LPDDR4
- SGMII
- I2C-Power Monitor
- USB
- UART
- CAN
- mikroBUS
- 40 pin Raspberry Pi 4 interface connector
The PolarFire SoC device available on the Icicle Kit is programmed using the on-board FlashPro6 programmer. This programmer is used to develop and debug embedded applications using SoftConsole, Identify, or SmartDebug.
Note: Embedded FlashPro6 is enabled only for production kits. For PROTO kits, the device can be programmed using an external FlashPro 4, 5, or 6 programmer.
1.1 Kit Contents
The following table lists the contents of the PolarFire SoC Icicle Kit.
| Item | Quantity |
|---|---|
| PolarFire SoC FPGA Icicle Kit ES featuring the MPFS250T-FCVG484EESEES device with 254 K logic elements | 1 |
| 12 V/5 A wall-mounted power adapter | 1 |
| Ethernet cable | 1 |
| USB 2.0 micro AB connector for UART interface to PC | 1 |
| Quickstart card | 1 |
1.2 Block Diagram
The block diagram illustrates the key components and their interconnections within the PolarFire SoC Icicle Kit. It shows the 12V power input connecting to a Power Module, which provides various voltage outputs (5V, 3.3V, 1.0V, 1.1V, 1.2V, 2.5V, 1.05V, 1.8V) to different components. Key components include the PolarFire® SoC MPFS250T-FCVG484 FPGA, LPDDR4 memory, eMMC Memory, SD-CARD, RaspberryPi CONN, LEDs, Push Buttons, USB PHY, I2C Power Sensor, USB-UART, USB CONN, RJ-45 CONN, VSC8662, SC-SPI Flash, JTAG, and PCIe RootPort. The diagram highlights various interfaces such as mikroBUS CONN, HDR, CAN x2, XCVR x4, and JTAG-PROG 10-pin HDR, showing how they are connected to the FPGA and other modules.
1.3 Web Resources
For more information about the PolarFire SoC Icicle Kit, refer to the PolarFire SoC Page.
1.4 Board Overview
The PolarFire SoC Icicle Kit features a MPFS250T-FCVG484EES FPGA with the following capabilities:
- VSC8662 with two RJ45 connectors for 10/100/1000 Mbps Ethernet
- LPDDR4 memory
- Power monitor module
- PCIe root port
- One SPI flash device
- 40 pin Raspberry Pi 4 interface connector
- mikroBUS expansion port
The board's top view shows the arrangement of various components including user and power LEDs, eMMC Flash, SD Card Slot, USB OTG, 40-pin Raspberry Pi® Expansion Connector, CAN Connector, Gigabit Ethernet RJ45 Jacks, mikroBUS™ Expansion Connector, USB-UART Terminal, Push Buttons, 12V Power Supply Input, Power ON/OFF Switch, USB Embedded Programming connector, PolarFire SoC MPFS250T-FCVG484EES, JTAG Programming Header, x4 PCIe Connector, and SPI Flash. The bottom view shows additional components and traces.
1.4.1 Form Factor
The dimensions of the PolarFire SoC Icicle Kit are:
- Form factor: 7.2 x 4.95 inches.
- Maximum height of the component at the top side: 0.59 inches.
- Maximum height of the component at the bottom side: 0.51 inches.
1.4.2 FPGA Bank IO Assignment for Individual Interfaces
The following table lists the FPGA Bank Assignment for individual interfaces.
| Interfaces | FPGA Bank Allocation |
|---|---|
| LPDDR4 | B6 |
| SGMII | B5, B1, B9, and B2 |
| PCI | XCVR0, B1, B9 |
| mikroBUS | B1, B9, and B2 |
| USB-UART (x4) | B1, B9 |
| USB interface | B2 |
| SC-SPI_FLASH | B3 |
| JTAG Header | B3 |
| eMMC/SDIO | B4 |
| CAN | B2, B1 |
| Raspberry Pi 4 interface connector | B1 |
| User defined LEDs/Switches | B0 |
The following table lists the important components of the PolarFire SoC Icicle Kit.
| Component | Label on Board | Description |
|---|---|---|
| Featured Device | ||
| PolarFire SoC FPGA | MPFS250T-FCVG484EES Extended Commercial (0 °C to 100 °C) temperature support. | |
| Power Supply and Monitoring | ||
| 12 V power supply input | J29 | The board is powered by a 12 V power source using an external +12 V/5 A DC jack. |
| ON/OFF switch | SW6 | Power ON/OFF switch from +12 V external DC jack. |
| Clocks | ||
| On-board 50 MHz clock oscillator | X5 | 50 MHz clock oscillator with single-ended output. |
| OSC | X2 | 125 MHz oscillator (differential LVDS output) which is the input to the MSS Reference clk. |
| FPGA Programming and Debugging | ||
| SPI flash | U43 | 1 Gb Micron MT25QL01GBBB8ESF-0SIT SPI flash memory device connected to SPI pins on bank3 of the PolarFire SoC device. |
| JTAG programming header | J23 | Header to program and debug the PolarFire SoC device using FlashPro. The appropriate programmer must be selected in the FlashPro software. Note: For PROTO kits, the device can be programmed using an external FlashPro 4, 5, or 6 programmer. |
| Embedded FlashPro 6 | U26 | On-board programming. |
| Expansion Interfaces | ||
| mikroBUS | J44, J8 | mikroBUS connector. |
| Raspberry Pi 4 | J26 | Raspberry Pi 4 interface connector. |
| PCIe X 16 | J6 | PCI Express Root port connector. |
| Communication Interfaces | ||
| 1000Base-X Gigabit Ethernet Transceiver RJ45 conn-2 | J1, J2 | Ethernet (RJ45) jack with external magnetics interfacing with VSC8662 in SGMII mode. |
| USB-UART | J11 | USB Micro AB connector. |
| CAN | J25, J27 | CAN Headers. |
| USB-ULPI | J16 | USB Micro AB connector. |
| Memory Chips | ||
| LPDDR4 | U2 | MT53D512M32D2DS-053 WT:D TR is used for LPDDR4 interface. Memory size: 16 Gb. |
| eMMC | U45 | SDINBDG4-8G eMMC is used for this interface. Memory size: 8 GB. |
| SD card | J30 | SD connector. |
| General Purpose I/O | ||
| Debug Switches | SW1 to SW4 | For debug. |
| Light-emitting diodes (LEDs) | LED1 to LED4 | Four active-high LEDs connected to some of the user I/Os for debugging. |
1.5 Handling the Board
Pay attention to the following points while handling or operating the board to avoid possible damage or malfunction:
- Handle the board with electrostatic discharge (ESD) precautions to avoid damage. For more information about using the board with ESD precautions, refer to Understanding Product Handling and ESD Precautions (for Hybrid Devices).
- Power down the board to switch between the programming headers J17 and PCIe CONN (CON1).
1.6 Operating Temperature
Extended commercial temperature range (0 °C to 100 °C).
1.7 Powering Up the Board
To power up the board, do the following:
- Connect 12 V/5 A power supply brick to J29.
- Slide switch SW6 to ON position.
- Power status LEDs 12P0, 5P0, 2P5V, VDDAUX4, 3P3V, VDD, 1P8, 1P1V_LPDDR4, and VDDA will glow.
- Install the software required for developing designs and set the jumpers for the pre-programmed design. For more information, refer to 2. Installation and Settings.
The following table provides the probing points for power rails.
| # | Power Rail | Probing Point | Tolerance Allowed | Expected Voltage (in Volt) |
|---|---|---|---|---|
| 1 | 12P0V | C476 | ±5% | 12 V |
| 2 | 5P0V | C482 | ±5% | 5 V |
| 3 | 1P8V | C542 | ±5% | 1.8 V |
| 4 | 2P5V | C786 | ±5% | 2.5 V |
| 5 | 1P5V_DDR3 | C602 | ±5% | 1.5 V |
| 6 | 0P75V_VTT_DDR3 | C514 | ±5% | 0.75 V |
| 7 | VDD | C499 | ±3% | 1 V |
| 8 | 1P1V_LPDDR4 | C574 | ±5% | 1.1 V |
| 9 | 1P2V_PHY_VSC_FP6 | C587 | ±5% | 1.2 V |
| 10 | 3P3V | C527 | ±5% | 3.3 V |
| 11 | VDDA | C556 | ±3% | 1.05 V |
2. Installation and Settings
This section provides information about the software and hardware settings required to run the pre-programmed demo design on the PolarFire SoC Icicle Kit.
2.1 Software Settings
- Download and install the latest release of Libero® SoC software from the Microsemi website.
- Generate a free silver license for your software. The Libero SoC installer includes FlashPro5 drivers.
For instructions about installing Libero SoC, refer to Libero Software Installation and Licensing Guide. For instructions about how to download and install DirectCores and driver firmware cores on the PC where Libero SoC is installed, refer to Installing IP Cores and Drivers User's Guide.
2.2 Hardware Settings
This section provides information about jumper settings, switches, and LEDs on the PolarFire SoC Icicle Kit.
2.2.1 Jumper Settings
The following table lists the default jumper settings on board.
| Jumper | Description | Pin | Default Setting |
|---|---|---|---|
| J31 | To select LPDDR4 Vref | — | Open |
| J9 | Select pin for programming FPGA with external FlashPro header or with on-board programmer. | — | Open |
| J21 | To select PolarFire SoC JTAG reset. | — | Open |
| J46 | To select 3.3 V for RPI connector from the Icicle Kit | — | Open |
| J47 | To select 5 V for RPI connector from the Icicle Kit | — | Open |
| J15 | To select USB ID | Short pin 1-2 | — |
| J17 | 5 V for VBUS switch for USB3340 | Short pin 1-2 | — |
| J43 | To select 1.8 V or 3.3 V for eMMC modes | Short pin 1-2 | — |
| J28 | Jumper for PolarFire SoC Serdes Vref | Short pin 1-2 | — |
| J24 | 5 V for VBUS switch for USB3320 | Short pin 1-2 | — |
| J34 | To select 1.8 V or 3.3 V for BANK4 voltage | Short pin 1-2 | — |
| J35 | To select 2.5 V or 3.3 V for BANK4 Aux voltage | Short pin 1-2 | — |
| J45 | To select 1 V or 1.05 V for VDD core voltage | Short pin 1-2 | — |
2.2.2 Power Supply LEDs
The following table lists the power supply LEDs on the PolarFire SoC Icicle Kit.
| LED | Description |
|---|---|
| 12P0 | 12 V power supply |
| 5P0 | 5 V power supply |
| 2P5V | 2.5 V power supply |
| VDDAUX4 | Bank4 Aux voltage |
| 3P3V | 3.3 V power supply |
| VDD | Core voltage |
| 1P8 | 1.8 V power supply |
| 1P1V_LPDDR4 | LPDDR4 voltage |
| VDDA | Power for Serdes channels |
2.2.3 Test Points
The following test points are available on the PolarFire SoC Icicle Kit.
| Test Point | Description |
|---|---|
| GND1TP_BLK to GND10TP_BLK | Test point for Ground |
| SD_D0 | Test point for SD_DATA0/eMMCMC_DATA0 at Mux |
| SD_D1 | Test point for SD_DATA1/eMMCMC_DATA1 at Mux |
| SD_D2 | Test point for SD_DATA2/eMMCMC_DATA2 at Mux |
| SD_D3 | Test point for SD_DATA3/eMMC_DATA3 at Mux |
| SD_CLK | Test point for SD_CLK/eMMC_CLK at Mux |
| SD_CMD | Test point for SD_CMD/eMMC_CMD at Mux |
| eMMC_CLK | Test point for eMMCMC_CLK at eMMCMC device |
| SDC_CLK | Test point for SD_CLK at SD connector |
| SDC_CMD | Test point for SD_CMD at SD connector |
| SDC_D3 | Test point for SD_DATA3 at SD connector |
| SDC_D2 | Test point for SD_DATA2 at SD connector |
| SDC_D1 | Test point for SD_DATA1 at SD connector |
| SDC_D0 | Test point for SD_DATA0 at SD connector |
| SD_CLK_FB_EM_D4 | Test point for SD_CLK_FB/eMMC_DATA4 at Mux |
| SD_VSEL_EM_D5 | Test point for SD_VSEL/eMMC_DATA5 at Mux |
| SD_CMD_DIR_EM_D7 | Test point for SD_CMD_DIR/eMMC_DATA7 at Mux |
| SD_WP#_EM_RSTN | Test point for SD_WP#/eMMC_RSTN at Mux |
| SD_CD#_EM_STB | Test point for SD_CD#/eMMC_STB at Mux |
| TP19-UART0 TX Togg | Test point for UART0 TX Togg |
| TP17-UART0 RX Togg | Test point for UART0 RX Togg |
| TP16-UART1 TX Togg | Test point for UART1 TX Togg |
| TP15-UART1 RX Togg | Test point for UART1 RX Togg |
| TP12-UART2 TX Togg | Test point for UART2 TX Togg |
| TP13-UART2 RX Togg | Test point for UART2 RX Togg |
| TP14-UART3 TX Togg | Test point for UART3 TX Togg |
| TP18-UART3 RX Togg | Test point for UART3 RX Togg |
| XTAL2_VSC | Test point for XTAL2 for Phy |
| RCLK1_VSC | Test point for Phy recovered clk1 |
| RCLK2_VSC | Test point for Phy recovered clk2 |
| CKO_VSC | Test point for Phy clkout |
| THMDA1 | Test point for THMDA1 |
| FIBR_DIP_1 | Test point for PHY_Serdes receiver input pair |
| FIBR_DIN_1 | Test point for PHY_Serdes receiver input pair |
| FIBR_DOP_1 | Test point for PHY_Serdes transmitter output pair |
| FIBR_DON_1 | Test point for PHY_Serdes transmitter output pair |
| FIBR_DIP_0 | Test point for PHY_Serdes receiver input pair |
| FIBR_DIN_0 | Test point for PHY_Serdes receiver input pair |
| FIBR_DOP_0 | Test point for PHY_Serdes transmitter output pair |
| FIBR_DON_0 | Test point for PHY_Serdes transmitter output pair |
| TP1 to TP6 - | Test points for PCIe reserved pins |
| TP_VDD | Test point for VDD_core voltage |
| TP_1P1V | Test point for 1.1 V |
| GND_1P1V | Test point for 1.1V_Ground |
| TP_1P2V | Test point for 1.2 V |
| GND_1P2V | Test point for 1.2V_Ground |
| TP_3P3V | Test point for 3.3 V |
| TP_VDDA | Test point for VDDA voltage |
| TP_2P5V | Test point for 2.5 V |
| TP_1P8V | Test point for 1.8 V |
| TP_5P0V | Test point for 5 V |
| GND_1P8V | Test point for 1.8V_Ground |
2.3 Power Sources
The PolarFire SoC Icicle Kit uses power supply devices. For more information about these power supply devices, refer to Power Management web page.
The following table lists the key power supplies required for normal operation of the PolarFire SoC Icicle Kit.
| Supply Name | Description | Value (in Voltage) |
|---|---|---|
| VDD | Core Power | 1.0/1.05 |
| VDD25 | Power for PLL/ICB/Bank Controller/PNVM/Programming Analog block | 2.5 |
| VDDA | Power for SerDes RX Channels [3:0] Power for SerDes TX Channels [3:0] | 1.0/1.05 |
| VDDA25 | Power for SerDes PLLS | 2.5 |
| VDD18 | HSIO/MSS_DDR Receiver Input Power SE Corner Oscillator Power for programming blocks, analog block and SW Corner Oscillator | 1.8 |
| VDDIO | HSIO Bank Power | 1.2, 1.5, 1.8 |
| VDDI1 | GPIO Bank Power | 1.2, 1.5, 1.8, 2.5, 3.3 |
| VDDI2 | MSSIO Bank Power | 1.2, 1.5, 1.8, 2.5, 3.3 |
| VDDI3 | Power for JTAG Ios | 1.8, 2.5, 3.3 |
| VDDI4 | MSSIO Bank Power | 1.2, 1.5, 1.8, 2.5, 3.3 |
| VDDI5 | MSS SGMII Bank Power and Pre-Driver | 2.5, 3.3 |
| VDDI6 | MSS DDR (HSIO) Bank Power | 1.2, 1.5, 1.8 |
| VDDI7 | GPIO Bank Power | 1.2, 1.5, 1.8, 2.5, 3.3 |
| VDDI8 | HSIO Bank Power | 1.2, 1.5 1.8 |
| VDDI9 | GPIO Bank Power | 1.2, 1.5, 1.8, 2.5, 3.3 |
| VDDAUX1 | GPIO Pre-Driver Bank Power | 2.5, 3.3 |
| VDDAUX2 | MSSIO Pre-Driver Bank Power | 2.5, 3.3 |
| VDDAUX4 | MSSIO Pre-Driver Bank Power | 2.5, 3.3 |
| VDDAUX7 | GPIO Pre-Driver Bank Power | 2.5, 3.3 |
| VDDAUX9 | GPIO Pre-Driver Bank Power | 2.5, 3.3 |
| XCVR_VREF | All SerDes RefClk receiver's voltage reference pin | 0.9/1.25 |
Note: Bank 9 VDDI power pins are connected to Bank 1 VDDI power pins within the package substrate for pin migration compatibility.
The voltage rails available on the PolarFire SoC Icicle Kit include 12 V, 5 V, 3.3 V, 2.5 V, 1.8 V, 1.2 V, and 1.0 V. A diagram illustrates the connections of various voltage rails (12P0V, 5P0V, 1.0V-VDD, 1P2V_PHY_VSC_FP6, 1P1V_LPDDR4, 1P8V, 2P5V, 3P3V, VDDA, 1P5V_DDR3, 0P75V_VTT/VREF) to different ICs (MIC26950YJL, MIC22705YML, MIC23303YML-T5, MIC69502WR (LDO), MIC5166YML-TR) which act as power regulators.
The following table lists the power regulators used for PolarFire SoC FPGA Icicle voltage rails.
| Voltage Rail | Part Number | Description | Current |
|---|---|---|---|
| 5 V | MIC26950JL | IC REG BUCK ADJ | 12 A |
| VDD (1 V) | MIC22705YML | IC REG BUCK ADJUSTABLE | 7 A |
| VSC_PHY(1.2 V) | MIC23303YML-T5 | IC REG BUCK ADJUSTABLE | 3 A |
| 1.1V_LPDDR4 | MIC23303YML-T5 | IC REG BUCK ADJUSTABLE | 3 A |
| 1P8V | MIC23303YML-T5 | IC REG BUCK ADJUSTABLE | 3 A |
| 2P5V | MIC69502WR | IC REG LINEAR POS ADJ | 5 A |
| 3P3V | MIC26950JL | IC REG BUCK ADJ | 12 A |
| VDDA | MIC69502WR | IC REG LINEAR POS ADJ | 5 A |
| 1P5V_DDR3 | MIC23303YML-T5 | IC REG BUCK ADJUSTABLE | 3 A |
| VTT | MIC5166YML-TR | IC PWR SUP 3 A HS DDR TERM 10MLF | 3 A |
3. Board Components and Operations
This section describes the key components of the PolarFire SoC Icicle Kit and provides information about important board operations. For device datasheets, refer to PolarFire SoC Page. For more information, refer to the Board Level Schematics document.
3.1 LPDDR4 Memory Interface
LPDDR4 is connected to the MSS BANK 6.
- Part number: MT53D512M32D2DS-053 WT:D TR
- Manufacturer: Micron
- Frequency range: 800 MHz
- Memory size: 16 Gb
3.2 SPI Serial Flash
The PolarFire SoC Icicle Kit has one SPI flash (1 Gb). The flash is connected to BANK3 SC-SPI pins to support IAP programming.
- Part number: MT25QL01GBBB8ESF-0SIT
- Manufacturer: Micron
- Flash Type: NOR
The SPI Flash interface diagram shows the PolarFire® SoC FPGA (BANK3) connected to the SC-SPI Flash (1 Gb) via SDO (F7), SDI (H10), SS (G7), and SCK (E6) pins.
3.3 eMMC and SDIO Interface
The PolarFire SoC MSS BANK4 has MUXed IOs for SDIO or eMMC interface. The PolarFire SoC Icicle Kit uses on-board MUX U44 and U29 to select the interface between an 8 GB eMMC device or an SD card connector.
3.3.1 eMMC
- Part number: SDINBDG4-8G
- Manufacturer: SanDisk
- eMMC 5.1
- Supports variable clock frequencies of 0-20 MHz, 0-26 MHz (default), 0-52 MHz (high-speed), 0-200 MHz SDR (HS200), and 0-200 MHz DDR (HS400)
- Dual power system: Core voltage (Vcc) 2.7 to 3.3 V, IO (VCCQ) voltage either: 1.7-1.95 V or 2.7-3.6 V
3.3.2 SD Card
The PolarFire SoC Icicle Kit has one SD card connector.
3.4 High Speed Transceivers Configuration
3.4.1 Transceivers Block Allocations
- MPFS250T-FCVG484EES has one XCVR block and 4 SERDES LANES available.
3.4.2 PCIx16 Connector
XCVR x4 lanes are mapped to PCIe CONN. An on-board PCIx16 straddle Mount root port connector is available in the PolarFire SoC Icicle Kit.
- Part number: 10025026-10103TLF
- Manufacturer: Amphenol ICC
- 4-TX/RX pairs are connected to SERDES block
- 100 MHz reference clock is provided to connector
3.5 Communication Interfaces
3.5.1 Ethernet - SGMII Interface
The VSC8662 device is a low-power, dual Gigabit Ethernet transceiver (1000BASE-X Gigabit Ethernet Transceiver PHY).
- Part number: VSC8662
- VSC8662 MAC interface dual port signals (Port 0 and Port1) RX/TX are connected on MSS SGMII Bank 5
- VSC8662 MDC and MDIO signals are connected MSS BANK 2
3.5.2 CAN Interface
The PolarFire SoC Icicle Kit has two CAN interfaces. One interface is from the MSS BANK 2 and another interface is from the GPIO BANK 1.
- Part number: MCP2562FDT-E/SN
- Manufacturer: Microchip
3.5.3 USB OTG
USB3340 is a Hi-Speed USB 2.0 Transceiver that provides a physical layer (PHY) solution well-suited for portable electronic devices.
- Part number: USB3340-EZK-TR
- Manufacturer: Microchip
- USB interface uses MSS BANK 2
- 26 MHz on board crystal for reference clock
3.6 Expansion Capabilities
The following sections explain the expansion connectors for the PolarFire SoC Icicle Kit.
3.6.1 Raspberry Pi 4 Connector
The PolarFire SoC Icicle Kit has a 40 pin Raspberry Pi connector.
- Part number: 61204021621
- Manufacturer: Wurth Electronics
- Raspberry Pi signals use GPIO BANK 1 and BANK 9
3.6.2 mikroBUS Connector
The PolarFire SoC Icicle Kit has a 16 pin mikroBUS interface connector.
- UART, SPI, and I2C signals
- SPI signals use MSS BANK 2
- I2C, UART, and other GPIO signals use GPIO BANK 1 and BANK 9
3.7 Voltage and Current Monitoring
The PolarFire SoC Icicle Kit has provision to measure current for four power rails:
- VDD
- VDD25
- VDDA25
- VDDA
Current sensing is done by PAC1934T-I/JQ. The I2C interface is available on digital values to read back values. The sensor's I2C interface is connected to the MSS I2C interface.
3.8 GPIO
3.8.1 Switches and LEDs
The PolarFire SoC Icicle Kit is equipped with four tact switches and four LED indicators.
- Switches and LEDs are connected to HSIO BANK 0
3.8.2 LEDs
LEDs are used to indicate:
- Power
- User defined LEDs (quantity – 4)
3.9 User Interface
The PolarFire SoC Icicle Kit has four user defined LEDs and four push-button switches.
3.9.1 USB to UART Interface
CP2108 is a USB to quad UART bridge controller to support 4 UART interfaces on board. UART IOs are connected to the Fabric IOs (Bank 1) of PolarFire SoC.
- Part number: CP2108-B02-GM
- Manufacturer: Silicon Labs
- UART interface uses GPIO BANK 1 and BANK 9
Note: The Silicon Labs CP2108 drivers are needed to see the COM ports through the J11 connector. The drivers can be downloaded from the following location: www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers
3.10 Mux for JTAG Selection
Multiplexer U22 is used for JTAG selection for External Flash Pro header and On-board Programmer.
- Part number: 74CBTLV3257BQ, 115
- Manufacturer: NXP
| Jumper (J9) | JTAG Selection |
|---|---|
| Open | External Flash Pro header |
| Close | On-board Programmer |
3.11 Programming Scheme
PolarFire SoC silicon is programmed in two ways:
- Using FlashPro header connected to BANK3 of PolarFire SoC
- On-board programmer (BANK 7)
The programming scheme block diagram shows the PolarFire® SoC (Bank 3) connected to a MUX, which then connects to either an FP Header or an On-board Programmer (Bank 7).
3.12 System Reset
DEVRST_N is an input-only reset pad that allows a full reset of the chip to be asserted at any time. A sample reset circuit uses a Microchip MCP121T-240E/TT device, connecting 3P3V to Bank3 via the MCP121T-240E/TT, which outputs to DEVRST_n.
3.13 50 MHz Oscillator
A 50 MHz clock oscillator with an accuracy of ±10 ppm is available on the board. This clock oscillator is connected to the FPGA fabric to provide a system reference clock.
The pin number of the 50 MHz oscillator is W12, and the pin name is HSIO92PB0/CLKIN_N_2/CCC_NW_CLKIN_N_2/CCC_NW_PLL1_OUT0.
The 50 MHz clock oscillator interface diagram shows the 50 MHz Oscillator connected to the PolarFire® SoC FPGA (Bank0) at pin W12, with a 1.8V supply.
For more information, refer to the Board-Level Schematics document (provided separately).
4. Pin List
For more information about all package pins on the PolarFire SoC, refer to the PolarFire SoC MPFS250T_MPFS250TS-FCVG484 Package Pin Assignment Table.
5. Board Component Placement
The silkscreen top view of the PolarFire SoC Icicle Kit illustrates the placement of various components, including connectors (J29, J33, J24, J30, J46, J19, J47, J25, J26, J27, J44, J45, J6, J3, J1, J2), switches (SW1-SW4, SW6), LEDs (LED1-LED8, LD1-LD9, LD11, LD12), and major ICs (U1, U3, U4, U5, U21, U23, U24, U26, U29, U32, U34, U35, U41, U43, U45, U47, U48, U49, U50, U52, U54, U61, U66). Various capacitors (e.g., C476, C482, C542, C786, C602, C514, C499, C574, C587, C527, C556) and resistors are also visible, along with test points (TP1-TP19) and power rails (12P0V, 5P0V, 1P8V, 1P1V_LPDDR4, 2P5V, 3P3V, VDDAUX4, VDDA, VDD). The bottom view shows additional components and traces on the underside of the board.
6. Demo Design
For the Icicle kit reference design, refer to the documentation provided on GitHub.
7. Appendix: Programming PolarFire SoC FPGA Using the On-Board Programmer
The PolarFire SoC Icicle Kit includes an on-board programmer. An external programmer hardware is, therefore, not required to program the PolarFire SoC device. The device can be programmed using the FlashPro software installed on the host PC.
Follow these steps to program an on-board PolarFire SoC device using the on-board programmer.
Notes: The programming file will be available in a future release.
- Connect the power supply cable to the J23 connector on the board.
- Close Jumper J9 for mux U22.
- Power on the board using the SW6 slide switch.
- When the board is successfully set up, the power LEDs start glowing.
- Download FlashPro Express from the following location: https://www.microsemi.com/product-directory/programming/4977-flashpro#software
- On the host PC, start the FlashPro Express software.
- Click New Project to create a new project.
- In the New Project window, do the following, and click OK.
- Enter a project name.
- Select Single device as the programming mode
- Click Configure Device.
- Click Program to program the device.
- From the View Programmer pane, select the on-board FlashPro6 programmer.
- Click Browse, and select the .stp file from the Load Programming File window.
The Programmer List window in the FlashPro Express software shows the programmer name, programmer type, port, programmer status, and information about whether the programmer is enabled.
When the device is programmed successfully, a Run Program PASSED status is displayed.
8. Revision History
The revision history describes the changes that were implemented in the document. The changes are listed by revision, starting with the most current publication.
| Revision | Date | Description |
|---|---|---|
| B | 05/2021 | Updated 3.9.1 USB to UART Interface section with a note. |
| A | 01/2021 | Following is a list of changes made in this release:
|
| 2.0 | — | The following is a summary of the changes made in this revision.
|
| 1.0 | — | This is the first publication of this document. |
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- There are dishonest and possibly illegal methods being used in attempts to breach the code protection features of the Microchip devices. Microchip believes that these methods require using Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Attempts to breach these code protection features, most likely, cannot be accomplished without violating Microchip's intellectual property rights.
- Microchip is willing to work with any customer who is concerned about the integrity of its code.
- Neither Microchip nor any other semiconductor manufacturer can guarantee the security of its code. Code protection does not mean that Microchip is guaranteeing the product is "unbreakable." Code protection is constantly evolving. Microchip is committed to continuously improving the code protection features of its products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
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All other trademarks mentioned herein are property of their respective companies.
© 2021, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
ISBN: 978-1-5224-8241-3
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