ATSAMA5D35A-CU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATSAMA5D35A-CU

SMART ARM-based MPU

Atmel Corporation 

11.5

SAM-BA Monitor

If no valid code is found in the NVM during the NVM bootloader sequence, the SAM-BA Monitor program is

launched.

The SAM-BA Monitor principle is to:

 Initialize DBGU and USB

 Check if USB Device enumeration occurred

 Check if characters are received on the DBGU

Once the communication interface is identified, the application runs in an infinite loop waiting for different

commands as listed in Table 11-4.

Figure 11-10. SAM-BA Monitor Diagram

No valid code in NVM

Init DBGU and USB

USB Enumeration

Successful ?

Yes

Run monitor

Wait for command

on the USB link

No

No

Character(s) received

on DBGU ?

Yes

Run monitor

Wait for command

on the DBGU link

SAMA5D3 Series [DATASHEET]

75

Atmel-11121F-ATARM-SAMA5D3-Series-Datasheet_02-Feb-16

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