參數(shù)資料
型號： 20-101-0654
廠商： Rabbit Semiconductor
文件頁數(shù)： 29/110頁
文件大?。?/td> 0K
描述： INTERFACE OP6800 512K FLASH&SRAM
標準包裝： 1
系列： SBC
模塊/板類型： 單板計算機模塊
適用于相關產(chǎn)品： OP6800
其它名稱： 20-101-654
20-101-654-ND
User’s Manual
21
3.3.3 Programming Port
The OP6800 programming port is accessed using header J1 on the OP6800’s RabbitCore
module or through the Ethernet jack. The programming port uses the Rabbit 2000’s Serial
Port A for communication. Dynamic C uses the programming port to download and debug
programs.
The programming port is also used for the following operations.
Cold-boot the Rabbit 2000 on the OP6800 after a reset.
Remotely download and debug a program over an Ethernet connection using the
RabbitLink EG2110.
Fast copy designated portions of flash memory from one Rabbit-based board (the
master) to another (the slave) using the Rabbit Cloning Board.
Alternate Uses of the Programming Port
All three clocked Serial Port A signals are available as
a synchronous serial port
an asynchronous serial port, with the clock line usable as a general CMOS input
The programming port may also be used as a serial port via the DIAG connector on the
programming cable.
In addition to Serial Port A, the Rabbit 2000 startup-mode (SMODE0, SMODE1), status,
and reset pins are available on the programming port header.
The two startup mode pins determine what happens after a reset—the Rabbit 2000 is
either cold-booted or the program begins executing at address 0x0000.
The status pin is used by Dynamic C to determine whether a Rabbit microprocessor is
present. The status output has three different programmable functions:
1. It can be driven low on the first op code fetch cycle.
2. It can be driven low during an interrupt acknowledge cycle.
3. It can also serve as a general-purpose output.
The /RESET_IN pin is an external input that is used to reset the Rabbit 2000 and the
OP6800 onboard peripheral circuits.
Refer to the Rabbit 2000 Microprocessor User’s Manual for more information.
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