SPRUJF1 November   2024 AM2612

ADVANCE INFORMATION  

  1.   1
  2.   Description
  3.   Key Features
  4. 1LaunchPad Module Overview
    1. 2.1 Introduction
    2. 2.2 Preface: Read This First
      1. 2.2.1 If You Need Assistance
      2. 2.2.2 Important Usage Notes
    3. 2.3 Kit Contents
    4. 2.4 Device Information
      1. 2.4.1 System Architecture Overview
      2. 2.4.2 Security
      3. 2.4.3 Compliance
      4. 2.4.4 BoosterPacks
      5. 2.4.5 Component Identification
  5. 2Hardware Description
    1. 3.1  Board Setup
      1. 3.1.1 Power Requirements
        1. 3.1.1.1 Power Input Using USB Type-C Connector
        2. 3.1.1.2 Power Status LEDs
        3. 3.1.1.3 Power Tree
      2. 3.1.2 Push Buttons
      3. 3.1.3 Boot mode Selection
      4. 3.1.4 IO Expander
    2. 3.2  Functional Block Diagram
    3. 3.3  GPIO Mapping
    4. 3.4  Reset
    5. 3.5  Clock
    6. 3.6  Memory Interfaces
      1. 3.6.1 OSPI
      2. 3.6.2 Board ID EEPROM
    7. 3.7  Ethernet Interface
      1. 3.7.1 Ethernet PHY Add-on Board connector #0 - CPSW RGMII/ICSSM
      2. 3.7.2 Ethernet PHY Add-on Board connector #1 - CPSW RGMII/ICSSM
    8. 3.8  I2C
    9. 3.9  Industrial Application LEDs
    10. 3.10 SPI
    11. 3.11 UART
    12. 3.12 MCAN
    13. 3.13 FSI
    14. 3.14 JTAG
    15. 3.15 TIVA and Test Automation Pin Mapping
    16. 3.16 LIN
    17. 3.17 ADC and DAC
    18. 3.18 EQEP and SDFM
    19. 3.19 EPWM
    20. 3.20 USB
    21. 3.21 BoosterPack Headers
  6. 3Known Issues and modifications done on LP-AM261 RevE1
    1. 4.1 TA_POWERDOWNz pulled up by VSYS_TA_3V3 which is powered by VSYS_3V3
    2. 4.2 USB2.0_MUX_SEL0 pulled up by R355
    3. 4.3 MDIO and MDC of PRU0-ICSS0 needs to be routed to both Ethernet PHYs
    4. 4.4 AM261_RGMII1_RXLINK and AM261_RGMII2_RXLINK to be connected to GPIO
  7. 4Additional Information
    1.     Trademarks
    2. 5.1 Sitara MCU+ Academy
  8. 5References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design
    3. 6.3 Related Documentation From Texas Instruments
  9. 6Revision History

2.8 I2C

The AM261x LaunchPad uses two AM261x SoC inter-integrated circuit (I2C) ports to operate as a controller for various targets. I2C data and clock lines needs to be pulled up to the 3.3V system voltage supply to enable communication.

AM261x I2C Targets Figure 2-16 I2C Targets

Table 2-7 I2C Addressing
Target I2C Instance I2C Addres Bit Description Device Addressing LaunchPad Config. I2C Address
Board ID EEPROM I2C0 The first 4 bits of the device address are set to 1010, the next two are set by the A2 and A1 pins, the seventh bit, a16, is the most significant internal address bit 0b10110[A2][A1][a16]
A1 and A2 is connected to ground		 0b1010001 0x51
LED Driver I2C1 The first four bits of the target address are 0000, the following three are determined by A2, A1, and A0 0b0000[A2][A1][A0]
A2 and A1 are connected to ground
A0 is connected to 3.3V supply		 0b0000001 0x01
BoosterPack Headers I2C0,

I2C1

 Dependent on target
IO Expander #1 I2C0 The first 6 bits of the target address are set to 010000, the next bit is determined by the addr pin of the IO expander IO_ADDR pin connected to 3.3V supply 0b0100001 0x21

IO Expander #2

 I2C0 The first 6 bits of the target address are set to 010000, the next bit is determined by the addr pin of the IO expander IO_ADDR pin connected to 3.3V supply 0b0100000 0x20
Ethernet PHY add-on Board Connector #0 I2C0 The first four bits of the target address are 1010, the following three are determined by A2, A1, and A0 0b1010[A2][1][A0]
A2 and A0 are connected to ground
 0b1010010 0x52
Ethernet PHY add-on Board Connector #1 I2C0 The first four bits of the target address are 1010, the following three are determined by A2, A1, and A0 0b1010[A2][1][A0]
A2 are connected to ground and A0 is connected to 3.3V supply
 0b1010011 0x53
PMIC I2C0 7 bit device address for the PMIC is 1100000 0b1100000 0b1100000 0x60
Note: Underlined address bits are fixed based on the device addressing and cannot be configured.
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |