?? intspc3.c
字號:
/*********************************************************************
公司名稱： 揚州恒春電子
模塊名 ： Profibus DP從站接口程序
創建人 ：
日期 ： 2007/03/01
功能描述： 利用ATMEG64L對SPC3進行配置，實現Profibus通訊
其它說明： 編譯環境為Keil uVision2
版本 ： V1.0
*********************************************************************/
#include "spc3dps2.h"
#include "iom64v.h"
#include <macros.h>
/*----------------------------------------------------------------------*/
/* INTERNAL FUNCTIONS */
/*----------------------------------------------------------------------*/
//void address_data_function (void *, UBYTE);
void wd_dp_mode_timeout_function (void);
void global_ctrl_command_function (void);
void go_leave_data_ex_function (void);
/*----------------------------------------------------------------------*/
/* LITERALLIES */
/*----------------------------------------------------------------------*/
//sbit run_led=P1^0; //show SPC3'states
#define DPS_CFG_OK 0
#define DPS_CFG_FAULT 1
#define DPS_CFG_UPDATE 2
#define Clr_run_led() PORTB&=~BIT(PB2) /* show SPC3'states */
#define Set_run_led() PORTB|=BIT(PB2) /* show SPC3'states */
/*----------------------------------------------------------------------*/
/* MACROS */
/*----------------------------------------------------------------------*/
/*----------------------------------------------------------------------*/
/* GLOBAL VARIABLES */
/*----------------------------------------------------------------------*/
UBYTE user_dps_state;
UBYTE user_global_ctrl_command;
UBYTE user_wd_state;
UBYTE store_mintsdr;
extern UBYTE real_no_add_chg;
extern UBYTE this_station;
extern UBYTE cfg_akt [20];
extern UBYTE cfg_len_akt;
extern DPS2_IO_DATA_LEN *user_io_data_len_ptr; /* Aenderung 14.11.95 */
extern UBYTE prm_tst_buf[];
extern UBYTE Isr_Flag0;
extern UBYTE Isr_Flag1;
/************************************************************************/
/* D e s c r i p t i o n : */
/* */
/* dps2_ind */
/* */
/* This function is called by the hardware interrupt */
/************************************************************************/
#pragma interrupt_handler int4_isr:6
void int4_isr(void)
{
if(!Isr_Flag1) Isr_Flag1=1, Clr_run_led();
else Isr_Flag1=0, Set_run_led();
if(DPS2_GET_IND_GO_LEAVE_DATA_EX())
//if (spc3.int_reg.com.b[_IML] & GO_LEAVE_DATA_EX_B)
{ //=== Start or the end of the Data-Exchange-State ===//
go_leave_data_ex_function();
DPS2_CON_IND_GO_LEAVE_DATA_EX(); // confirm this indication //
//spc3.int_reg.ack.b[_IML] = (UBYTE)GO_LEAVE_DATA_EX_B;
}
if(DPS2_GET_IND_NEW_GC_COMMAND())
{ //=== New Global Control Command ===//
global_ctrl_command_function();
DPS2_CON_IND_NEW_GC_COMMAND(); // confirm this indication //
}
if(DPS2_GET_IND_NEW_PRM_DATA())
{ //=== New parameter data ===//
UBYTE * prm_ptr;
UBYTE param_data_len, prm_result;
UBYTE ii;
prm_result = DPS2_PRM_FINISHED;
do
{ // Check parameter until no conflict behavior //
prm_ptr = DPS2_GET_PRM_BUF_PTR();
param_data_len = DPS2_GET_PRM_LEN();
// data_length_netto of parametration_telegram > 7 //
if (param_data_len > 7)
{
//if (( *(prm_ptr+8) == 0xAA) && ( *(prm_ptr+9) == 0xAA)) //20080731
prm_result = DPS2_SET_PRM_DATA_NOT_OK(); // as example !!! //
//else 20080731
//{ 20080731
//for (ii= 0; ii<param_data_len && ii <10; ii++) // store in the interim buffer //
//prm_tst_buf[ii] = *(prm_ptr+ii+7); // for the diagnostic //
// !!!!!! as example !!!! //
//prm_result = DPS2_SET_PRM_DATA_OK();
//} 20080731
}
else
prm_result = DPS2_SET_PRM_DATA_OK();
} while(prm_result == DPS2_PRM_CONFLICT);
store_mintsdr = *(prm_ptr+3); // store the mintsdr for restart after //
// baudrate search //
}
if(DPS2_GET_IND_NEW_CFG_DATA())
{ //=== New Configuration data ===//
UBYTE * cfg_ptr;
UBYTE config_data_len, cfg_result, result;
cfg_result = DPS2_CFG_FINISHED;
result = DPS_CFG_OK;
do
{ // check configuration data until no conflict behavior m//
cfg_ptr = DPS2_GET_CFG_BUF_PTR(); // pointer to the config_data_block //
config_data_len = DPS2_GET_CFG_LEN();
// In this example the only possible configurations are 0x13 and 0x23
// (4 Byte I/O) or 0x11 and 0x21 (2 Byte I/O) are possible
if ( config_data_len != 2)
cfg_result = DPS2_SET_CFG_DATA_NOT_OK();
else
{ // Length of the configuration data o.k. //
// check the configuratin bytes //
if ((cfg_akt[0] == cfg_ptr[0]) && (cfg_akt[1] == cfg_ptr[1]))
result = DPS_CFG_OK;
// the desired conf. is equal the actuall configuration //
else
{
if (((cfg_ptr[0] == 0x13) && (cfg_ptr[1]) ==0x23)
|| ((cfg_ptr[0] == 0x11) && (cfg_ptr[1]) ==0x21))
{
cfg_akt[0] = cfg_ptr[0];
cfg_akt[1] = cfg_ptr[1];
result = DPS_CFG_UPDATE;
}
else
result = DPS_CFG_FAULT; // as example !!!!! //
if (result == DPS_CFG_UPDATE)
{
user_io_data_len_ptr = dps2_calculate_inp_outp_len (cfg_ptr,(UWORD)config_data_len);
if (user_io_data_len_ptr != (DPS2_IO_DATA_LEN *)0)
{
DPS2_SET_IO_DATA_LEN(user_io_data_len_ptr);
}
else
result = DPS_CFG_FAULT;
}
}
switch (result)
{
case DPS_CFG_OK: cfg_result = DPS2_SET_CFG_DATA_OK();
break;
case DPS_CFG_FAULT: cfg_result = DPS2_SET_CFG_DATA_NOT_OK();
break;
case DPS_CFG_UPDATE: cfg_result = DPS2_SET_CFG_DATA_UPDATE();
break;
}
}
} while(cfg_result == DPS2_CFG_CONFLICT);
}
if(DPS2_GET_IND_WD_DP_MODE_TIMEOUT())
{ //=== Watchdog is run out ===//
wd_dp_mode_timeout_function();
DPS2_CON_IND_WD_DP_MODE_TIMEOUT(); // confirm this indication //
}
if(SPC3_GET_IND_USER_TIMER_CLOCK())
{ //==== Timer tick received ====//
SPC3_CON_IND_USER_TIMER_CLOCK();
}
if(SPC3_GET_IND_BAUDRATE_DETECT())
{ //==== Baudrate found ====//
// If the baudrate has lost and again found in the state WAIT_CFG, //
// DATA_EX the SPC3 would answer to the next telegramms //
// with his default mintsdr. //
// But he should answer in the meantime parametrized mindstr //
if ((DPS2_GET_DP_STATE() == DPS2_DP_STATE_WAIT_CFG )||(DPS2_GET_DP_STATE() == DPS2_DP_STATE_DATA_EX))
SPC3_SET_MINTSDR(store_mintsdr);
SPC3_CON_IND_BAUDRATE_DETECT();
}
SPC3_SET_EOI();
} // End dps2_ind() //
/*
void address_data_function (void *(address_data_ptr), UBYTE address_data_len)
{
char ch;
//change the slave-address
struct dps_address_data * addr_ptr;
ch=address_data_len;
addr_ptr = address_data_ptr;
this_station = addr_ptr->new_address;
real_no_add_chg = addr_ptr->no_add_chg;
// store the new address and the bit real_no_add_chg for the next startup
DPS2_FREE_SSA_BUF(); // release the Set Slave Address buffer
}
*/
void wd_dp_mode_timeout_function (void)
{
UBYTE rueck;
/* Watchdog is run out. The SPC3 reset the PROFIBUS DP Statemachine */
user_wd_state = SPC3_GET_WD_STATE();
/*SX small weakness of the SPC3
Update of the diagnosis with 00
otherwise the bit "static diagnosis" would appear in the
next startup */
rueck = DPS2_SET_DIAG_LEN(6);
rueck = DPS2_SET_DIAG_STATE(0x00);
DPS2_DIAG_UPDATE();
}
void global_ctrl_command_function (void)
{
user_global_ctrl_command = DPS2_GET_GC_COMMAND();
}
void go_leave_data_ex_function (void)
{
user_dps_state = DPS2_GET_DP_STATE();
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -