參數(shù)資料
型號: AT91SAM7S256C-MU
廠商: Atmel
文件頁數(shù): 53/165頁
文件大小: 0K
描述: IC ARM7 MCU 32BIT 256K 64QFN
標準包裝: 260
系列: SAM7S
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 55MHz
連通性: I²C,SPI,SSC,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 256KB(256K x 8)
程序存儲器類型: 閃存
RAM 容量: 64K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-VFQFN 裸露焊盤
包裝: 托盤
146
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
– Once the communication interface is identified, the application runs in an infinite loop waiting for
different commands as shown in Table 21-1.
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: ‘>’
Go (G): Jump to a specified address and execute the code
– Address: Address to jump in hexadecimal
– Output: ‘>’
Get Version (V): Return the SAM-BA boot version
– Output: ‘>’
Table 21-1.
Commands Available through the SAM-BA Boot
Command
Action
Argument(s)
Example
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#
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