main()
{
int i;
unsigned char frame_basic0[10] = {0xEA,0x28,0x12,0x34,0x56,0x78,0x9A,0xBC,0xDE,0xF0};
unsigned char frame_basic1[10] = {0xEB,0x28,0x12,0x34,0x56,0x78,0x9A,0xBC,0xDE,0xF0};
unsigned char frame_basic2[10] = {0xEC,0x28,0x12,0x34,0x56,0x78,0x9A,0xBC,0xDE,0xF0};
unsigned char frame_basic3[10] = {0xED,0x28,0x12,0x34,0x56,0x78,0x9A,0xBC,0xDE,0xF0};
unsigned char frame_extended[13] = {0x88,0xA6,0xB0,0x12,0x30,0x12,0x34,0x56,0x78,0x9A,0xBC,0xDE,0xF0};
unsigned char r_val;
init_can("Basic","normal");
enable_irq_sff();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
release_receive_buffer();
printf("interrupt register 0x%X \n",interrupt_register);
while(1)
{
if ((interrupt_register & receive_interrupt) == 0)
{
kill_time(4000000);
printf("No data!\n");
}
else
{
read_receive_buffer_basic();
release_receive_buffer();
}
}
}
static int test_proc_show(struct seq_file *seq, void *v)
{
unsigned int *ptr_var = seq->private;
kill_time();
seq_printf(seq, "%u\n", *ptr_var);
return 0;
}
void write_frame_extended(unsigned char write_field[])
{
int i = 0;
//printf("************************************\n");
printf("******* write frame extended *******\n");
//printf("************************************\n");
for (i=0; i<13; i++)
{
*((unsigned char *)(CANADDR+0x0010+i)) = write_field[i];
kill_time(10);
printf( "write data %i: 0x%X , 0x%X \n",i,write_field[i],*((unsigned char *)(CANADDR+0x0010+i)));
}
}
void write_frame_basic(unsigned char write_field[])
{
int i = 0;
printf("************************************\n");
printf("******** write frame basic *********\n");
printf("************************************\n");
for (i=0; i<10; i++)
{
*((unsigned char *)(0xfffc000A+i)) = write_field[i];
kill_time(10);
printf( "write data: %i , 0x%X , 0x%X \n",i,write_field[i],*((unsigned char *)(0xfffc000A+i)));
}
}
void self_reception_test()
{
unsigned char r_val;
printf( "Switch on Reset Mode\n");
control_register = 0x01;
printf( "control 0x%X \n\n",control_register);
// witch to extended mode
clock_divider_register = 0x80;
printf( "clock_divider 0x%X \n\n",clock_divider_register);
// set bus timing
//bus_timing_0_register = 0xBF;
bus_timing_0_register = 0x80;
bus_timing_1_register = 0x34;
// set acceptance and mask register
acceptance_code_0 = 0xA6;
printf( "acceptance 0 0x%X \n",acceptance_code_0);
acceptance_code_1 = 0xB0;
printf( "acceptance 1 0x%X \n",acceptance_code_1);
acceptance_code_2 = 0x12;
printf( "acceptance 2 0x%X \n",acceptance_code_2);
acceptance_code_3 = 0x30;
printf( "acceptance 3 0x%X \n\n",acceptance_code_3);
acceptance_mask_0 = 0x00;
printf( "acceptance mask 0x%X \n",acceptance_mask_0);
acceptance_mask_1 = 0x00;
printf( "acceptance mask 0x%X \n",acceptance_mask_1);
acceptance_mask_2 = 0x00;
printf( "acceptance mask 0x%X \n",acceptance_mask_2);
acceptance_mask_3 = 0x00;
printf( "acceptance mask 0x%X \n\n",acceptance_mask_3);
// Setting the "self test mode"
control_register = 0x05;
printf( "control 0x%X \n\n",control_register);
kill_time(50);
// Switch-off reset mode
control_register = 0X04;
printf( "control_register 0x%X \n\n",control_register);
kill_time(150);
// Send frame
tx_frame_information_eff = 0x88;
printf( "Set identifier - 0xA6 0xB0 0x12 0x30\n");
tx_identifier_1_eff = 0xA6;
//printf( "identifier 0: 0x%X \n",tx_identifier_1_eff);
tx_identifier_2_eff = 0xB0;
//printf( "identifier 1: 0x%X \n",tx_identifier_2_eff);
tx_identifier_3_eff = 0x12;
//printf( "identifier 2: 0x%X \n",tx_identifier_3_eff);
tx_identifier_4_eff = 0x30;
//printf( "identifier 3: 0x%X \n\n",tx_identifier_4_eff);
printf( "Set data - 0x12 0x34 0x56 0x78 0x9A 0xBC 0xDE 0xF0\n");
tx_data_1_eff = 0x12;
//printf( "data byte 1: 0x%X \n",tx_data_1_eff);
tx_data_2_eff = 0x34;
//printf( "data byte 2: 0x%X \n",tx_data_2_eff);
tx_data_3_eff = 0x56;
//printf( "data byte 3: 0x%X \n",tx_data_3_eff);
tx_data_4_eff = 0x78;
//printf( "data byte 4: 0x%X \n",tx_data_4_eff);
tx_data_5_eff = 0x9A;
//printf( "data byte 5: 0x%X \n",tx_data_5_eff);
tx_data_6_eff = 0xBC;
//printf( "data byte 6: 0x%X \n",tx_data_6_eff);
tx_data_7_eff = 0xDE;
//printf( "data byte 7: 0x%X \n",tx_data_7_eff);
tx_data_8_eff = 0xF0;
//printf( "data byte 8: 0x%X \n\n",tx_data_8_eff);
// Enable ints
interrupt_enable_register = 0xFF;
kill_time(50);
//tx_request_command();
self_reception_request();
//tx_request_command();
printf( "Finnished \n");
printf( "control_register 0x%X \n\n",control_register);
//kill_time(10000);
printf( "interrupt_register 0x%X \n\n",interrupt_register);
printf( "control_register 0x%X \n\n",control_register);
//read_receive_buffer_extended();
}
void init_can(char * mode, char * self_test)
{
unsigned char r_val;
if (mode == "Basic")
{
//printf("************************************\n");
printf("********** Basic Can Mode **********\n");
//printf("************************************\n");
printf( "Switch on Reset Mode\n");
r_val = control_register | reset_mode_on;
control_register = r_val;
//printf( "control_register: 0x%X \n\n",control_register);
//printf( "Set clock divider register to basic can mode\n");
r_val = clock_divider_register & basic_mode | 0x07;
clock_divider_register = r_val;
//printf( "clock_divider_register: 0x%X \n\n",clock_divider_register);
//printf( "Output control register \n");
//output_control_register = 0x01;
//printf( "output control register : 0x%X \n\n",output_control_register);
//printf( "Set bus timing register 0\n");
//printf( "Sync Jump Width = 2 Baudrate Prescaler = 1\n");
bus_timing_0_register = 0x83;
//printf( "bus timing register 0: 0x%X \n\n",bus_timing_0_register);
//printf( "Set bus timing register 1\n");
//printf( "SAM = 0 ---> Single Sampling\n");
bus_timing_1_register = 0x25;
//printf( "bus timing register 1: 0x%X \n\n",bus_timing_1_register);
//printf( "Set acceptance code register\n");
acceptance_code_register = 0x88;
//printf( "acceptance code register: 0x%X \n\n",acceptance_code_register);
//printf( "Set acceptance mask register\n");
acceptance_mask_register = 0xFF;
//printf( "acceptance mask register: 0x%X \n\n",acceptance_mask_register);
kill_time(50);
printf( "Switch off reset mode\n");
r_val = control_register & reset_mode_off;
control_register = r_val;
//printf( "control_register 0x%X \n\n",control_register);
kill_time(50);
}
else if (mode == "Extended")
{
printf("************************************\n");
printf("******** Extended Can Mode *********\n");
printf("************************************\n");
printf( "Switch on Reset Mode\n");
r_val = control_register | reset_mode_on;
control_register = r_val;
printf( "control_register: 0x%X \n\n",control_register);
kill_time(50);
printf( "Set clock divider register to extended can mode\n");
r_val = clock_divider_register | extended_mode | 0x07;
clock_divider_register = r_val;
printf( "clock_divider_register: 0x%X \n\n",clock_divider_register);
kill_time(50);
//printf( "Output control register \n");
//output_control_register = 0x01;
//printf( "output control register: 0x%X \n\n",output_control_register);
printf( "Set bus timing register 0\n");
printf( "Sync Jump Width = 2 Baudrate Prescaler = 1\n");
bus_timing_0_register = 0xA8;
printf( "bus timing register 0: 0x%X \n\n",bus_timing_0_register);
printf( "Set bus timing register 1\n");
printf( "SAM = 0 ---> Single Sampling\n");
bus_timing_1_register = 0x34;
printf( "bus timing register 1: 0x%X \n\n",bus_timing_1_register);
printf( "Set acceptance code register\n");
acceptance_code_0 = 0xA6;
printf( "acceptance code register 0: 0x%X \n",acceptance_code_0);
acceptance_code_1 = 0xB0;
printf( "acceptance code register 1: 0x%X \n",acceptance_code_1);
acceptance_code_2 = 0x12;
printf( "acceptance code register 2: 0x%X \n",acceptance_code_2);
acceptance_code_3 = 0x30;
printf( "acceptance code register 3: 0x%X \n\n",acceptance_code_3);
printf( "Set acceptance mask register\n");
acceptance_mask_0 = 0x00;
printf( "acceptance mask register: 0x%X \n",acceptance_mask_0);
acceptance_mask_1 = 0x00;
printf( "acceptance mask register: 0x%X \n",acceptance_mask_1);
acceptance_mask_2 = 0x00;
printf( "acceptance mask register: 0x%X \n",acceptance_mask_2);
acceptance_mask_3 = 0x00;
printf( "acceptance mask register: 0x%X \n\n",acceptance_mask_3);
if (self_test == "self_test")
{
self_testing_mode();
}
printf( "Switch off reset mode\n");
r_val = control_register & reset_mode_off;
control_register = r_val;
printf( "control_register 0x%X \n\n",control_register);
kill_time(50);
}
}
