Atmel SAM4S Series, Preliminary Data Sheet

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395
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
23.5 SAM-BA Monitor
The SAM-BA boot principle:
Once the communication interface is identified, to run in an infinite loop waiting for different com-
mands as shown in
Table 23-2 .
• Mode commands:
– Normal mode configures SAM-BA Monitor to send/receive data in binary format,
– Terminal mode configures SAM-BA Monitor to send/receive data in ascii format.
• Write commands: Write a byte (O), a halfword (H) or a word (W) to the target.
– Address: Address in hexadecimal.
– Value: Byte, halfword or word to write in hexadecimal.
– Output: ‘>’.
• Read commands: Read a byte (o), a halfword (h) or a word (w) from the target.
– Address: Address in hexadecimal
– Output: The byte, halfword or word read in hexadecimal following by ‘>’
• Send a file (S): Send a file to a specified address
– Address: Address in hexadecimal
– Output: ‘>’.
Note: There is a time-out on this command which is reached when the prompt ‘>’ appears before the
end of the command execution.
• Receive a file (R): Receive data into a file from a specified address
– Address: Address in hexadecimal
–
NbOfBytes
: Number of bytes in hexadecimal to receive
– Output: ‘>’
Table 23-2. Commands Available through the SAM-BA Boot
Command Action Argument(s) Example
N Set Normal Mode No argument N#
T Set Terminal Mode No argument T#
O Write a Byte Address, Value# O200001,CA#
o Read a Byte Address,# o200001,#
H Write a Half Word Address, Value# H200002,CAFE#
h Read a Half Word Address,# h200002,#
W Write a Word Address, Value# W200000,CAFEDECA#
w Read a Word Address,# w200000,#
S Send a File Address,# S200000,#
R Receive a File Address, NbOfBytes# R200000,1234#
G Go Address# G200200#
V Display Version No argument V#