AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 137
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AT91SAM7X128
Manufacturer Part Number
AT91SAM7X128
Description
MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
Manufacturer
Atmel
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X128
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
Ram Size
32 KB
Program Memory Size
128 KB
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Program Memory Type
Flash
Number Of Programmable I/os
62
Interface Type
CAN/Ethernet/SPI/I2S/TWI/USART/USB
On-chip Adc
8-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
3
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21.4.1
6120H–ATARM–17-Feb-09
DBGU Serial Port
Table 21-1.
Note:
Communication is performed through the DBGU serial port initialized to 115200 Baud, 8, n, 1.
The Send and Receive File commands use the Xmodem protocol to communicate. Any terminal
performing this protocol can be used to send the application file to the target. The size of the
binary file to send depends on the SRAM size embedded in the product. In all cases, the size of
Command
O
o
H
h
W
w
S
R
G
V
• Write commands: Write a byte (O), a halfword (H) or a word (W) to the target.
• Read commands: Read a byte (o), a halfword (h) or a word (w) from the target.
• Send a file (S): Send a file to a specified address
• Receive a file (R): Receive data into a file from a specified address
• Go (G): Jump to a specified address and execute the code
• Get Version (V): Return the SAM-BA boot version
– Address: Address in hexadecimal.
– Value: Byte, halfword or word to write in hexadecimal.
– Output: ‘>’.
– Address: Address in hexadecimal
– Output: The byte, halfword or word read in hexadecimal following by ‘>’
– Address: Address in hexadecimal
– Output: ‘>’.
– Address: Address in hexadecimal
–
– Output: ‘>’
– Address: Address to jump in hexadecimal
– Output: ‘>’
– Output: ‘>’
NbOfBytes
There is a time-out on this command which is reached when the prompt ‘>’ appears before the
end of the command execution.
Commands Available through the SAM-BA Boot
Action
write a byte
read a byte
write a half word
read a half word
write a word
read a word
send a file
receive a file
go
display version
: Number of bytes in hexadecimal to receive
AT91SAM7X512/256/128 Preliminary
Argument(s)
Address, Value#
Address,#
Address, Value#
Address,#
Address, Value#
Address,#
Address,#
Address, NbOfBytes#
Address#
No argument
Example
O200001,CA#
o200001,#
H200002,CAFE#
h200002,#
W200000,CAFEDECA#
w200000,#
S200000,#
R200000,1234#
G200200#
V#
137
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