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參數(shù)資料
| 型號： | DS5000T/KIT |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 16/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT IC EVALUATION MPU/RTC |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 類型： | 微控制器 |
| 適用于相關產(chǎn)品： | DS5000 |
| 所含物品： | 演示板和軟件 |
DS5000(T)
6 of 19
PROGRAM LOADING CONFIGURATIONS Figure 3
Table 1 summarizes the selection of the available Parallel Program Load cycles. The timing associated
with these cycles is illustrated in the electrical specs.
SERIAL BOOTSTRAP LOADER
The Serial Program Load Mode is the easiest, fastest, most reliable, and most complete method of
initially loading application software into the DS5000(T) nonvolatile RAM. Communication can be
performed over a standard asynchronous serial communications port. A typical application would use a
simple RS232C serial interface to program the DS5000(T) as a final production procedure. The hardware
configuration required for the Serial Program Load mode is illustrated in Figure 3. Port pins 2.7 and 2.6
must be either open or pulled high to avoid placing the DS5000(T) in a parallel load cycle. Although an
11.0592 MHz crystal is shown in Figure 3, a variety of crystal frequencies and loader baud rates are
supported, shown in Table 2. The serial loader is designed to operate across a 3-wire interface from a
standard UART. The receive, transmit, and ground wires are all that are necessary to establish
communication with the DS5000(T).
The Serial Bootstrap Loader implements an easy-to-use command line interface that allows an application
program in an Intel hex representation to be loaded into and read back from the device. Intel hex is the
typical format which existing 8051 cross-assemblers output. The serial loader responds to single
character commands, which are summarized below:
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