📄 userspc3.c
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/*********************************************************************
公司名称： 扬州恒春电子
模块名 ： Profibus DP从站接口程序
创建人 ：
日期 ： 2007/03/01
功能描述： 利用ATMEG64L对SPC3进行配置，实现Profibus通讯
其它说明： 编译环境为Keil uVision2
版本 ： V1.0
*********************************************************************/
#include "spc3dps2.h"
#include "iom64v.h"
#include <macros.h>
#include "eeprom.h"
#define Clr_run_led() PORTB&=~BIT(PB2) /* show SPC3'states */
#define Set_run_led() PORTB|=BIT(PB2) /* show SPC3'states */
#define Clr_SPC3_1_RESET() PORTB&=~BIT(PB0) /* SPC3-reset-Pin */
#define Set_SPC3_1_RESET() PORTB|= BIT(PB0) /* SPC3-reset-Pin */
#define Clr_WD() PORTB &= ~BIT(PB3) /* */
#define Set_WD() PORTB |= BIT(PB3) /* */
#define BR_NUM 1 /* for serial baudrate */
#define SPC3_RESET_SET 1 /* reset-polarity */
#define SPC3_INTERRUPT_ENABLE EX0 /* external interrupt of SPC3 */
#define I_ENABLE 1 /* enable interrupt */
#define GLOBAL_INTERRUPT_ENABLE EA /* global interrupt */
/********************The time-out of WDT at 12 MHz ***********
16MS WDTPRG=0x0
32MS WDTPRG=0x1
65MS WDTPRG=0x2
131MS WDTPRG=0x3
262MS WDTPRG=0x4
542MS WDTPRG=0x5
1MS WDTPRG=0x6
2MS WDTPRG=0x7
**************************************************************/
/*
#define WDT_INIT() WDTPRG=0x5;\
WDTRST=0x1E;\
WDTRST=0xE1
#define WDT_RE() WDTRST=0x1E;\
WDTRST=0xE1
*/
/*----------------------------------------------------------------------*/
/* STRUCTURES AND TYPEDEFS */
/*----------------------------------------------------------------------*/
struct diag_data_blk
{
UBYTE stationstatus_1;
UBYTE stationstatus_2;
UBYTE stationstatus_3;
UBYTE master_add;
UBYTE ident_high;
UBYTE ident_low;
/*------------------ extern diag data -----------------*/
UBYTE header;
UBYTE ext_diag_0;
UBYTE ext_diag_1;
UBYTE ext_diag_2;
UBYTE ext_diag_3;
UBYTE ext_diag_4;
UBYTE ext_diag_5;
UBYTE ext_diag_6;
UBYTE ext_diag_7;
UBYTE ext_diag_8;
UBYTE ext_diag_9;
UBYTE ext_diag_10;
UBYTE ext_diag_11;
UBYTE ext_diag_12;
UBYTE ext_diag_13;
UBYTE ext_diag_14;
UBYTE ext_diag_15;
UBYTE ext_diag_16;
UBYTE ext_diag_17;
};
enum ERRORCODES {IO_LENGTH_ERROR,INIT_ERROR,UNUSED};
/*----------------------------------------------------------------------*/
/* INTERNAL FUNCTIONS */
/*----------------------------------------------------------------------*/
void main (void);
void user_dps_reset (void);
void build_diag_data_blk (struct diag_data_blk*);
void user_error_function (enum ERRORCODES);
/*
void init_serial(void);
void send(UBYTE *str,UBYTE len);
*/
/*----------------------------------------------------------------------*/
/* LITERALS */
/*----------------------------------------------------------------------*/
// #define OWN_ADDRESS 19 //
#define IDENT_HIGH 0x0B // 0x06 //
#define IDENT_LOW 0x9F // 0xFA //
#define CFG_LEN 2
#define CONFIG_DATA_INP 0x17 // 0x16(7) 0x13(4)
#define CONFIG_DATA_OUTP 0x25 //4
/*----------------------------------------------------------------------*/
/* GLOBAL VARIABLES */
/*----------------------------------------------------------------------*/
UBYTE real_no_add_chg;
UBYTE this_station;
UBYTE cfg_akt [20];
UBYTE cfg_len_akt;
DPS2_IO_DATA_LEN *user_io_data_len_ptr;
struct diag_data_blk *diag_ptr;
DPS2_BUFINIT dps2_buf;
UBYTE *user_output_buffer_ptr;
UBYTE *user_input_buffer_ptr;
UBYTE *real_config_data_ptr;
void *user_diag_buffer_ptr;
UBYTE ident_numb_high;
UBYTE ident_numb_low;
UBYTE dps_chg_diag_srvc_byte_new;
UBYTE dps_chg_diag_srvc_byte_old;
UBYTE diag_service_code;
UBYTE diag_len;
UWORD user_baud_value;
UBYTE user_diag_flag;
UBYTE *io_byte_ptr;
UBYTE i;
UBYTE zyk_wd_state;
UBYTE zyk_dps_state;
UBYTE prm_tst_buf[32]= {0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0};
UBYTE WD_Flag0;
UBYTE Isr_Flag1;
UBYTE OWN_ADDRESS;
UBYTE T_OWN_ADDRESS;
extern UBYTE Profi_S_Data[8];
extern UBYTE CKD_R_Data[14];
extern UBYTE CKD_S_Data[9];
extern UBYTE Profi_R_Data[8];
enum ERRORCODES error_code;
void twi_init(void);
unsigned char CKD_R_Data_Process(void);
void PROFI_R_Data_Process(void);
unsigned char I2c_RS_Data_Comm(void);
void port_init(void)
{
PORTA = 0x00;
DDRA = 0x00;
PORTB = 0x00;
DDRB = 0xff;
PORTC = 0x00; //m103 output only
DDRC = 0x00;
PORTD = 0x00;
DDRD = 0x00;
PORTE = 0x00;
DDRE = 0x00;
PORTF = 0x00;
DDRF = 0x00;
PORTG = 0x00;
DDRG = 0x00;
}
/*
void watchdog_ini(void)
{
WDR(); //喂狗，清0，防止狗定时器益处
WDTCR=0x0b; //狗使能，欲分频设为010，VCC=5V益处时间为65。2毫秒
}
void watchdog_off(void)
{
WDTCR=BIT(WDCE);
WDTCR=BIT(WDCE); //对WDCE 和WDE 写1
WDTCR=0x00; //WDE 写0；禁止看门狗
// WDTCR=0x00;
}
*/
void Send_watchdog(void)
{
if (WD_Flag0)
{
Clr_WD();
WD_Flag0 = 0;
}
else
{
Set_WD();
WD_Flag0 = 1;
}
}
//call this routine to initialize all peripherals
void init_devices(void)
{
//stop errant interrupts until set up
CLI(); //disable all interrupts
port_init();
MCUCR = 0x80;
EICRA = 0x00; //extended ext ints
EICRB = 0x01; //extended ext ints
EIMSK = 0x10;
twi_init();
SEI();
//TIMSK = 0x00; //timer interrupt sources
//ETIMSK = 0x00; //extended timer interrupt sources*/
//re-enable interrupts
//all peripherals are now initialized
}
void Terminal_Address_Ini(void)
{
while(!CKD_R_Data_Process())
{
Send_watchdog();
}
if ((CKD_R_Data[1] >= 0x01) && (CKD_R_Data[1] <= 0x7d))
{
OWN_ADDRESS = CKD_R_Data[1];
}
else
{
OWN_ADDRESS = 0xff;
}
}
void Spc3_Terminal_Ini(void)
{
volatile UBYTE *loesch;
UWORD zaehl;
Set_SPC3_1_RESET();
//watchdog_ini();
for(i = 100; i ; i--);
//SPC3_RESET = !SPC3_RESET_SET;
Clr_SPC3_1_RESET();
//Set_run_led();
//SPC3_INTERRUPT_ENABLE = !I_ENABLE; /* Set the interrupt parameters */
loesch = &spc3.int_req.b[0]; /* Delete the SPC3 internal RAM */
for (zaehl=0x16; zaehl<=0x05ff; zaehl++)
{
*(loesch + zaehl) = 0;
}
//Clr_run_led();
//init_serial();
/* activate the indication functions */
SPC3_SET_IND(GO_LEAVE_DATA_EX | WD_DP_MODE_TIMEOUT | NEW_GC_COMMAND |\
NEW_CFG_DATA | NEW_PRM_DATA | BAUDRATE_DETECT);
/* set the watchdog value in the SPC3, which checks the microprocessor */
//DPS2_SET_USER_WD_VALUE(20000); //
DPS2_SET_USER_WD_VALUE(SWAP_W(20000));
/* In this example the input and output bytes are transfered to the
IO area, which is addressed by the io_byte_ptr. In the case of the IM183
there is RAM. */
io_byte_ptr = ((UBYTE *) 0x110);
for (i=0; i<20; i++)
{
(*(io_byte_ptr + i)) = 3;
}
this_station = OWN_ADDRESS;
ident_numb_high = IDENT_HIGH;
ident_numb_low = IDENT_LOW;
/* Allow not the change of the slave address by the PROFIBUS DP */
/* Attention: The set_slave_address service is not blocked by this */
real_no_add_chg = TRUE;
/* Reset the User und DPS */
user_dps_reset();
}
void main()
{
init_devices();
Terminal_Address_Ini();
Spc3_Terminal_Ini();
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