參數(shù)資料
型號: C16X
廠商: SIEMENS AG
元件分類: 8位微控制器
英文描述: 8-Bit Microcontroller(8位微控制器)
中文描述: 8位微控制器(8位微控制器)
文件頁數(shù): 23/40頁
文件大小: 460K
代理商: C16X
Using the
SSC (SPI) Interface in a Multimaster System
Semiconductor Group
23 of 40
AP1632 06.96
4.1.6 SSC scan routine -
SSC_SCAN.C
*****************************************************************************
* program : ssc_scan.c *
* name : Andreas Hettmann Siemens, Cupertino/CA *
* date : 5'96 *
* function : Master SSC scanning for Slave commands *
*****************************************************************************/
include <reg167.h> /* register definitions */
include "ssc.h" /* int # definitions */
xtern unsigned int BOARD_ID;
xtern void TX_SSC (unsigned int, unsigned int, unsigned int);
/* use external routine */
nterrupt (t2intno) void SSC_SCAN (void); /* prototype definition */
pragma global /* make ssc_scan useable for external C modules */
nterrupt (t2intno) void SSC_SCAN (void)
TX_SSC ( IDLE, BOARD_ID, ALL ); /* send command IDLE to all remote boards */
/* rem.: this procedure is needed to */
/* supply all slaves with SSC clock */
/* periodically to ensure a slave request */
/* can be received by the master */
T2 = MASTER_IDLE / 0.0128; /* reload timer */
T2CON = 0x00C5; /* count down, fc=fcpu/256, start timer */
}
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