Kontron AT8402 User Manual Manual de usuario descargar pdf (Pagina 72)

AT8402 Software Description

Page 4 - 8 AT8402 User Guide

A list of defined postcodes is shown in the table below.

Table 4-2: POST Boot Steps

POST Step Code Value Boot Step

PC_INIT 0x00 Initial PC, EBC has been set up

PC_BINIT 0x01 Board early init (interrupt settings)

PC_CLOCKS 0x02 Get system clocks

PC_TIMEB 0x03 Init timebase

PC_ENVINIT 0x04 Init environment

PC_BAUD 0x05 Init baudrate

PC_SERIAL 0x06 Init UART

PC_CPU 0x07 Check CPU

PC_PHY 0x08 Setup PHY

PC_I2C 0x09 Init I2C

PC_INITRAM 0x0A Init SDRAM controller and SDRAM

PC_TESTRAM 0x0B Test SDRAM

PC_INITSEQ 0x0F Board init sequence completed

PC_INITBOARD 0x10 Board init ok, stack set up ok, board info struct set up

PC_RELOC 0x11 Relocation completed

PC_TRAP 0x18 Setup trap handler

PC_FLASH 0x19 Flash OK

PC_CPU2 0x1A Init higher level parts of CPU

PC_RELOCENV 0x1B Relocation of environment Ok

PC_BDINFO 0x1C Fill missing fields of bdinfo

PC_PCI 0x1D PCI configuration done

PC_DEVICES 0x1E Device init done

PC_JUMPTABLE 0x1F Jumptable init done

PC_CONSOLE 0x20 Console init done

PC_MAIN 0x2F Enter main loop

PC_START_OS 0x3F Pass control to OS, leave bootloader

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Kontron AT8402 User Manual Manual de usuario Pagina 72