extern int
cfg_mode_init()
{
char *cfg_env = getenv ("cfg_mode");
int ucfg, dcfg=0;
if(strcmp(cfg_env , NULL) == 0)
goto DEFAULT_SET;
/* get env : cfg_mode */
if (cfg_env[0] >'6' || cfg_env[0] <'1') //UCFG : 1-6
goto DEFAULT_SET;
else if (cfg_env[2] >'3' || cfg_env[2] <'1') //DCFG : 1-3
goto DEFAULT_SET;
else{
ucfg = cfg_env[0] -48;
dcfg = cfg_env[2] -48;
goto SET_REG;
}
DEFAULT_SET :
ucfg = CONFIG_INIT_UCFG;
SET_REG :
if(SOCLE_SCU_SDRAM_BUS_WIDTH_32 == socle_scu_sdram_bus_width_status())
dcfg = 3;
else if (dcfg == 2)
dcfg = 2;
else
dcfg = 1;
if (ucfg != 6)
uart_set((u32) CFG_NS16550_COM2);
socle_scu_ucfg_mode_set(ucfg);
socle_scu_dcfg_mode_set(dcfg);
return 0;
}
int main(void)
{
// const char *w_buf = "something to write";
int loop_count = 50;
char w_buf[50];
size_t w_len = sizeof(w_buf);
char r_buf[1024];
int r_len = 10;
w_buf[0] = 0x1;
w_buf[1] = 0x2;
w_buf[2] = 0x4;
w_buf[3] = 0x8;
w_buf[4] = 0x10;
w_buf[5] = 0x20;
w_buf[6] = 0x40;
w_buf[7] = 0x80;
w_buf[8] = 0x55;
w_buf[9] = 0xaa;
w_len = 10;
bzero(r_buf,1024);
fd = uart_open(fd,"/dev/ttyLF1"); /*串口号/dev/ttySn,USB口号/dev/ttyUSBn*/
if (fd == -1) {
fprintf(stderr,"uart_open error\n");
exit(EXIT_FAILURE);
}
if (uart_set(fd, 115200, 0, 8, 'N', 1) == -1) {
fprintf(stderr,"uart set failed!\n");
exit(EXIT_FAILURE);
}
ret = uart_write(fd, w_buf, w_len);
if (ret == -1) {
fprintf(stderr,"uart write failed!\n");
exit(EXIT_FAILURE);
}
#if 1
fprintf(stdout,"while 1 start!\n");
while (1) {
fprintf(stdout,"\n=== uart_write start! ===\n");
ret = uart_write(fd, w_buf, w_len);
if(ret == -1) {
fprintf(stderr,"uart write failed!\n");
exit(EXIT_FAILURE);
}
fprintf(stdout,"=== uart_read start! ===\n");
ret = uart_read(fd, r_buf, r_len);
if(ret == -1) {
fprintf(stderr,"uart read failed!\n");
exit(EXIT_FAILURE);
}
if (ret >= 0) {
int i;
fprintf(stdout,"[%s]: Received data:\n", __func__);
for (i=0; i < ret; i++)
printf("%x ", r_buf[i]);
printf("\n");
}
sleep(1);
//usleep(1);
}
#endif
ret = uart_close(fd);
if (ret == -1) {
fprintf(stderr,"uart_close error\n");
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
