Datasheet

77
SAM9261 [DATASHEET]
Atmel-6062O-ATARM-SAM9261-Datasheet_21-Jun-16
12.2 Flow Diagram
The Boot Program implements the algorithm in Figure 12-1.
Figure 12-1. Boot Program Algorithm Flow Diagram
Timeout < 50ms
Character(s) received
on DBGU
Run SAM-BA Boot
Run SAM-BA Boot
OR
SAM-BA Boot
USB Enumeration
Successful
No
Timeout 50ms.
EEPROMBoot
Download from
EEPROM
Run
Yes
TWI/EEPROM Boot
No
Device
Setup
SD Card Boot
Download from
SDCARD
Run
Yes
SD Card Boot
NandFlash Boot
Download from
NandFlash
Run
Yes
NandFlash Boot
Timeout < 50msNo
SPI Dataflash Boot
Download from
Dataflash NPCS0
Run
Yes
DataFlash Boot
Timeout < 25 msNo
SPI Serialflash Boot
Download from
Serial flash NPCS0
Run
Yes
Serial Flash Boot
Timeout < 25 msNo