參數資料
型號: ATWEBDVK-02WC
廠商: Atmel
文件頁數: 5/137頁
文件大?。?/td> 0K
描述: KIT DEV TCP/IP AT89C51RD2 WEBCAM
標準包裝: 1
系列: @Web
主要目的: *
嵌入式: *
已用 IC / 零件: AT89C51RD2
主要屬性: *
次要屬性: *
已供物品: 板,帶網絡 Webcam 模塊和軟件
產品目錄頁面: 617 (CN2011-ZH PDF)
102
4235K–8051–05/08
AT89C51RD2/ED2
24.7
ISP Protocol Description
24.7.1
Physical Layer
The UART used to transmit information has the following configuration:
Character: 8-bit data
Parity: none
Stop: 2 bits
Flow control: none
Baudrate: autobaud is performed by the bootloader to compute the baudrate chosen by the
host.
24.7.2
Frame Description
The Serial Protocol is based on the Intel Hex-type records.
Intel Hex records consist of ASCII characters used to represent hexadecimal values and are
summarized below.
Figure 24-6. Intel Hex Type Frame
Record Mark:
Record Mark is the start of frame. This field must contain ’:’.
Reclen:
Reclen specifies the number of bytes of information or data which follows the Record Type field
of the record.
Load Offset:
Load Offset specifies the 16-bit starting load offset of the data bytes, therefore this field is used
only for Data Program Record (see Section “ISP Commands Summary”).
Record Type:
Record Type specifies the command type. This field is used to interpret the remaining informa-
tion within the frame. The encoding for all the current record types is described in Section “ISP
Data/Info:
Data/Info is a variable length field. It consists of zero or more bytes encoded as pairs of hexa-
decimal digits. The meaning of data depends on the Record Type.
Checksum:
The two’s complement of the 8-bit bytes that result from converting each pair of ASCII hexadec-
imal digits to one byte of binary, and including the Reclen field to and including the last byte of
the Data/Info field. Therefore, the sum of all the ASCII pairs in a record after converting to
binary, from the Reclen field to and including the Checksum field, is zero.
Record
Load
Data
Mark
’:’
Reclen
Offset
Type
or
Info
Checksum
1-byte
2-bytes
1-byte
n-bytes
1-byte
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相關代理商/技術參數
參數描述
ATWEBEVK-01 功能描述:KIT EVAL TCP/IP AT89C51AC2 RoHS:否 類別:編程器,開發(fā)系統 >> 評估演示板和套件 系列:@Web 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理,電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
ATWEBEVK-02 功能描述:KIT SOFTWARE EVAL FOR T89C51CC01 制造商:microchip technology 系列:- 零件狀態(tài):停產 主要用途:接口,以太網 嵌入式:- 使用的 IC/零件:- 主要屬性:- 輔助屬性:- 所含物品:板 標準包裝:1
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ATWEBEVK-06 功能描述:BOARD EVAL FOR CAN-ETHERNET MOD RoHS:否 類別:編程器,開發(fā)系統 >> 評估演示板和套件 系列:@Web 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理,電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
ATWEBSEG-32 功能描述:MODULE RS232 TO TCP/IP RoHS:否 類別:編程器,開發(fā)系統 >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數據表和用戶手冊 其它名稱:520-1035