SPRABA5D January   2014  – January 2019 AM1802 , AM1802 , AM1806 , AM1806 , AM1808 , AM1808 , AM1810 , AM1810

 

  1.   Using the AM18xx Bootloader
    1.     Trademarks
    2. 1  Introduction
    3. 2  Boot Modes
    4. 3  Non-AIS Boot Modes
      1. 3.1 NOR Boot
        1. 3.1.1 Legacy NOR Boot
        2. 3.1.2 Direct NOR Boot
        3. 3.1.3 AIS NOR Boot
      2. 3.2 Host Port Interface (HPI) Boot
      3. 3.3 Emulation Debug Boot
    5. 4  Application Image Script (AIS) Boot
      1. 4.1  Section Load Command (0x58535901)
      2. 4.2  Section Fill Command (0x5853590A)
      3. 4.3  Enable CRC Command (0x58535903)
      4. 4.4  Disable CRC Command (0x58535904)
      5. 4.5  Validate CRC Command (0x58535902)
      6. 4.6  Jump & Close Command (0x58535906)
      7. 4.7  Jump Command (0x58535905)
      8. 4.8  Sequential Read Enable Command (0x58535963)
      9. 4.9  Function Execute Command (0x5853590D)
      10. 4.10 Boot Table Command (0x58535907)
    6. 5  AISgen: Tool to Generate Boot Script (AIS Image)
      1. 5.1 Installation
      2. 5.2 Getting Started
      3. 5.3 Generating AIS
        1. 5.3.1  Boot Mode and Boot Peripheral Setup
        2. 5.3.2  Phase-Locked Loop (PLL) Setup
        3. 5.3.3  Synchronous Dynamic Random Access Memory (SDRAM) Setup
        4. 5.3.4  DDR Setup
        5. 5.3.5  PSC Setup
        6. 5.3.6  Pin Multiplexing Setup
        7. 5.3.7  Application File Selection
        8. 5.3.8  AIS File Selection
        9. 5.3.9  Status and Messages
        10. 5.3.10 Additional AIS Options
          1. 5.3.10.1 CRC
          2. 5.3.10.2 Specifying the Application Entrypoint
        11. 5.3.11 Command Line Usage
    7. 6  Master Boot – Booting From a Slave Memory Device
      1. 6.1 I2C EEPROM Boot
      2. 6.2 SPI EEPROM or Flash Boot
      3. 6.3 NOR Flash Boot
      4. 6.4 NAND Flash Boot
      5. 6.5 MMC/SD Boot
    8. 7  Slave Boot – Booting From an External Master Host
      1. 7.1 About the AIS Interpreter on the Host
      2. 7.2 Start-Word Synchronization (SWS)
      3. 7.3 Ping Op-Code Synchronization (POS)
      4. 7.4 Opcode Synchronization (OS)
    9. 8  UART Boot Host - Using Your PC as a UART Boot Master
      1. 8.1 Getting Started
      2. 8.2 Booting the Device
      3. 8.3 The AIS_Util.cs Source Code
    10. 9  Boot Requirements, Constraints and Default Settings
      1. 9.1 General Comments
      2. 9.2 UART-Boot Modes
      3. 9.3 I2C-Boot Modes
      4. 9.4 SPI-Boot Modes
      5. 9.5 NOR-Boot Modes
      6. 9.6 NAND-Boot Modes
      7. 9.7 MMC/SD-Boot Modes
      8. 9.8 HPI-Boot Modes
    11. 10 References
  2.   A Boot Mode Selection Table
    1.     A.1 Boot Mode Selection Table
  3.   B Details of Supported NAND Devices
    1.     B.1 Details of Supported NAND Devices
  4.   C CRC Computation Algorithm
    1.     C.1 CRC Computation Algorithm
  5.   D Details of Pre-Defined ROM Functions
    1.     D.1 PLL0 Configuration (Index = 0, Argument Count = 2)
    2.     D.2 PLL1 Configuration (Index = 1, Argument Count = 2)
    3.     D.3 Clock Configuration (Index = 2, Argument Count = 1)
      1.      D.3.1 SPI Master Register
      2.      D.3.2 I2C Master Register
      3.      D.3.3 UART Slave Register
      4.      D.3.4 MMC/SD Register
    4.     D.4 mDDR/DDR2 Controller Configuration (Index = 3, Argument Count = 8)
    5.     D.5 EMIFA SDRAM Configuration (Index = 4, Argument Count = 5)
    6.     D.6 EMIFA Async Configuration (Index = 5, Argument Count = 5)
    7.     D.7 PLL and Clock Configuration (Index = 6, Argument Count = 3)
    8.     D.8 Power and Sleep Configuration (PSC) (Index = 7, Argument Count = 1)
    9.     D.9 Pinmux Configuration (Index = 8, Argument Count = 3)
  6.   E ROM Revision History
    1.     E.1 ROMID: D800K002, Silicon Revision 1.0
    2.     E.2 ROMID: D800K004, Silicon Revision 1.1
    3.     E.3 ROMID: D800K006, Silicon Revision 2.0
    4.     E.4 ROMID: D800K008, Silicon Revision 2.1
  7.   Revision History

7.1 About the AIS Interpreter on the Host

The AIS interpreter on the host processor is responsible for transferring the AIS to the bootloader. Therefore, the host has to understand the transfer protocol and implement the required handshake mechanism.

NOTE

For the sake of simplicity, the AIS interpreter on the host processor will simply be referred to as host in these sections.

It is important to establish a reliable link between the host and the bootloader before starting a serial boot load using the AIS. Once this link is established, the AIS can be transferred to the bootloader. This process is divided into three states: start-word synchronization (SWS), ping Op-code synchronization (POS) and op-code synchronization (OS).
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