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[FAQ] TDA4VM: What is the difference between SK-TDA4VM and the J721E EVM?

Josue Zamitiz-Ayala
Mastermind 41056 points

Part Number: TDA4VM
Other Parts Discussed in Thread: , J721EXSOMXEVM, J721EXCPXEVM, PCM3168A, TPS25750, TCA9543A, CDCEL937-Q1, CDCI6214, DS90UH981-Q1, INA226, PCM3168A-Q1, DS90UB926Q-Q1

The goal of this thread is to help engineers differentiate between the SK-TDA4VM evaluation board and the J721E EVM (Evaluation Module).

After reading this FAQ you could answer the following questions:

What SDKs are supported in each EVM?

What are the hardware differences between the SK-TDA4VM and the J721E EVM?

What is the difference in I2C address mapping?

  • 0
    TI__Mastermind 41056 points

    Software

    The PROCESSOR-SDK-LINUX-SK-TDA4VM (a.k.a. Edge AI SDK) is an SDK for the low-cost board named as SK-TDA4VM. Compared to the other SDKs that run on J721E EVM and are tailored for automotive applications, the Edge AI SDK and SK-TDA4VM is tailored for rapid prototyping of industrial edge AI applications.

    More details such as driver differences for the SDK differences are documented in the Edge AI SDK: https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-sk-tda4vm/08_01_00_02/exports/docs/faq.html

    The following table shows which SDK is currently supported on TDA4VM Starter Kit vs J721E EVM:

    Software

    		 Description

    SK-TDA4VM

    J721EXSOMXEVM + J721EXCPXEVM

    PROCESSOR-SDK-LINUX-J721E

    Linux SDK for DRA829 & TDA4VM JacintoTm Processors

    x

    PROCESSOR-SDK-LINUX-SK-TDA4VM

    Linux SDK for edge AI applications on TDA4VM JacintoTm processors

    x

    PROCESSOR-SDK-LINUX-RT-J721E

    Linux-RT SDK for DRA829 & TDA4VM JacintoTm Processors

    x

    PROCESSOR-SDK-QNX-J721E

    QNX SDK for DRA829 & TDA4VM JacintoTm Processors

    x

    PROCESSOR-SDK-RTOS-J721E

    RTOS SDK for DRA829 & TDA4VM JacintoTm Processors

    x

    Hardware

    Differences are highlighted in red.

    Note: The J721E EVM is comprised of:

    • J721E System On Module (SOM) board

    • Jacinto7 Common Processor Board (CPB)

    • Quad-Port Ethernet board (QPENet)

    SK-TDA4VM J721E EVM 
    Processor TDA4VM Processor, 24 mm x 24 mm, 0.8 mm pitch, 827‐pin FCBGA TDA4VM Processor, 24 mm x 24 mm, 0.8 mm pitch, 827‐pin FCBGA
    Memory – 4GByte LPDDR4 DRAM (3733 MHz)
    – 512 Mb Non-Volatile Flash, Octal‐SPI NOR
    – Multimedia Card (MMC)/Secure Digital Card (Micro SD) Cage, UHS‐I    		 – 4GByte LPDDR4 DRAM (3733 MHz), support inline ECC
    – 2x Octal‐SPI NOR flash, 512 Mb memory (8 bit) + 512 Mb memory (4 bit)
    – HyperFlash + HyerRAM, 512 Mb flash memory + 256 Mb RAM
    – UFS Flash memory, 32GByte, 2Lane, Gear3
     – eMMC Flash memory, 16 GB memory, v5.1 compliant
     – MicroSD Card Cage, UHS‐I – Inter-Integrated Circuit (I2C) EEPROM, 1 Mbit
    Display – VESA Display Port (v1.4), supports 4K UHD with MST support
    – DVI (v1.0) via HDMI Type A, supports 1080p    		 – 1x Display Port, up to 4K resolution with MST support
    Connectivity – USB3.1 (Gen1) Hub to 3x Type A (Host)
    – USB3.1 (Gen1) Type C (DFP and UFP modes)
    – USB2.0 Micro B (for Quad UART-over-USB Transceiver)
    – Gigabit Ethernet (RJ45 Connector)
    – 4x CAN-FD Headers (1x3)
    – 2x 15-Pin Flex Cable Interface (CSI-2L)
    – 40-pin High Speed Connector (dual CSI-4L, I2C, GPIO, and so forth )    		 – 4x CAN Interfaces, full CAN‐FD support
    – 1x USB3.1 Type C Interface, support DFP, DRP, UFP modes
    – 4x USB2.0 Host Interfaces (2x for external cables)
    – 1x FPD‐Link Panel Interface, Gen3
    – 1x Audio Codec (PCM3168A), supports 2x Line Inputs, 4x Microphone Inputs, 2x Line Outputs, 6x Headphone Outputs
    – 1x FPD‐Link Radio Tuner Interface
    – 5x Gbit Ethernet, 1x RGMII/DP83867 + 1x QSGMII/VSC8514
    – 6x Universal Asynchronous Receiver/Transmitter (UART) terminals via 2x USB FTDI (UART‐over‐USB)
    – 2x I3C headers
    – 1x ADC Header
    Expansion – M.2 Key E Interface (PCIe/Gen3 x 1 Lane, USB2.0, SDIO, I2S, UART, I2C)
    – M.2 Key M Interface (PCIe/Gen3 x 2 Lane)
    – 40-pin Header (2x20) (I2C, SPI, UART, I2S, GPIO, PWM, and so forth)
    – Fan Header (5 V)    		 – 2x PCIe Card Slot, 1x PCIe M.2 Slot (M‐Key), all Gen3
    – MLB, MLBP Expansion Interface
    – Image/Video Capture Expansion Interface
    – Apple Authentication Module Interface
    – General Expansion Interface
    JTAG/Emulator – External JTAG/Emulator Support (20-pin Header) – Integrated XDS110 Emulator support
    – External emulator through 60pin MIPI Connector
    – Trace Support through 60pin MIPI Connector
    – Includes adapters for 14pin and 20pin CTI
    Power

    Recommended external Power supply (USB-C connector)

    –GlobTek, Inc. TR9CZ3000USBCG2R6BF2

    –Qualtek QADC-65-20-08CB 

    Optimized Power Management Solution
    – Dynamic Voltage Scaling
    – Multiple Clock and Power Domains

    		 Power Supply: 12 V DC nominal input (6 V‐28 V input range)
    – Optimized Power Management Solution for Processor
    – Integrated Power Measurement
    Compliance – REACH and RoHS Compliant
    – EMI/EMC Radiation Compliant    		 – REACH and RoHS Compliant

    For more information see the corresponding user guides:

    SK-TDA4VM    User Guide

    J721E EVM      User Guide

    I2C address mapping

    SK/EVM Device/Function Part# I2C Address
    WKUP_I2C0 Port
    SK-TDA4VM PMIC PTPS65941213 0x48-4B
    PMIC PTPS65941111 0x4C-4F
    Board ID EEPROM AT24C512C 0x51
    Expansion Header (40p)   Add-on
    J721E EVM PMIC O917A131TRGZTQ1 0x58-5B
    PMIC LP873200RHDTQ1 0x62
    PMIC LP87524BRNFTQ1 0x60
    PMIC LP87561IRNFTQ1 0x61
    Board ID EEPROM CAT24C256W 0x50
    Board ID EEPROM CAT24C256W 0x53
    Board ID EEPROM CAT24C256W 0x54
    MCU_I2C0 Port
    SK-TDA4VM PMIC PTPS65941213 0x12
    J721E EVM BOOT EEPROM AT24CM01 0x50,51
    Temperature Sensors 1 TMP100NA/3K 0x48
    Temperature Sensors 2 TMP100NA/3K 0x49
    SoC_I2C0 Port
    SK-TDA4VM Input PD Controller TPS25750 0x20
    PCIe M.2 Key E/M TCA9543A 0x71, Add-on
    J721E EVM Peripheral Clock Generator CDCEL937-Q1 0x6D
    RTC Module MCP79410 0x57,6F
    Apple Authentication Header/Footprint 2214BR‐10G 0x10, 0x11
    SERDES REF CLK GEN - 2 CDCI6214 0x76
    16 bit I2C GPIO Expander-1 TCA6416ARTWR 0x20
    24 bit I2C GPIO Expander-2 TCA6424ARGJR 0x21
    I2C MUX for both x2LANE and x1LANE PCIe Interface TCA9543APWR 0x70
    I2C MUX for M.2 PCIe Connector (2 L PCIe Gen4-SERDES2) TCA9543APWR 0x71
    MLB Physical Interface Board <connector interface>  
    Clock Generator on Quad ENET Board CDCI6214 TBD
    SoC_I2C1 Port
    SK-TDA4VM HDMI DDC   Add-on
    J721E EVM 8 bit I2C GPIO Expander-4 TCA6408ARGTR 0x20
    FPD Link-IV Serializer (DSI) DS90UH981-Q1 0x0E
    DSI FPC CONNECTOR INTERFACE TBD
    Current Monitors 1(PM1_I2C) INA226 0x40-0x4F
    Current Monitors 2(PM2_I2C) INA226 0x40-0x4F
    Test Automation Header <connector interface>  
    SoC_I2C3 Port
    SK-TDA4VM Camera Expansion TCA9543A 0x70, Add-on
    J721E EVM 8 bit I2C GPIO Expander-3 TCA6408ARGTR 0x20
    Audio Codec - 1 PCM3168A-Q1 0x44
    FPD Link-III De-serializer (McASP) DS90UB926Q-Q1 0x2C
    SoC_I2C5 Port
    SK-TDA4VM Expansion Header (40p)   Add-On
    SoC_I2C6 Port
    J721E EVM 8 bit I2C GPIO Expander-5 TCA6408ARGTR 0x20

    For more information see the corresponding user guides:

    SK-TDA4VM    User Guide

    J721E EVM      User Guide