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#include <stdio.h>
#include "M051Series.h"
#include "Driver\DrvSYS.h"
#include "Driver\DrvUART.h"
#include "Driver\DrvGPIO.h"

//SD5128的逻辑0是25%的高75%的低，逻辑1是75%的高25%的低，那就是相当于开始25%是固定低，
//结束的25%是固定高，中间50%与逻辑相同，那么就可以简化为数据1000和1110代表逻辑0和逻辑1；
//SD5128的每个像素是3个字节的RGB数据，结束符是一位的低，25位的高，即可表示为0X7FFFFFFF
//串口UART起始位是低，结束位是高，刚好与上面的SD5128的逻辑相反，那么串口数据用6位，
//UART波形取反相后就能与SD5128的占空比符合，每个字符代表SD5128的两个BIT。编码关系如下：
//           __________________________________
//     |_ST_| D0 | D1 | D2 | D3 | D4 | D5 | SP |
//  00 | 0    1  1  1   0    1   1 1  | = 0x37
//  01 | 0   1  1  1   0    0   0 1  | = 0x07
//  10 | 0   0  0  1   0    1   1 1  | = 0x34
//  11 | 0   0  0  1   0    0   0 1  | = 0x04

unsigned char  BIT2BYTE[4]={0x37,0x07,0x34,0x04}; //BIT2BYTE
unsigned char  ENDCODE[4] ={0x7F,0xFF,0xFF,0xFF}; //ENDCODE
 
int SD5128_Init(void)
{
 STR_UART_T sParam;
    
 /* Set UART0 Pin */
 DrvGPIO_InitFunction(E_FUNC_UART0);

 /* Select UART0 Clock Source From 12Mhz*/
 DrvSYS_SelectIPClockSource(E_SYS_UART_CLKSRC,0);
 /* Select UART0 Clock Source From PLL*/
// DrvSYS_SelectIPClockSource(E_SYS_UART_CLKSRC,1);

 /* UART0 Setting */
    sParam.u32BaudRate   = 800000; //1000K
    sParam.u8cDataBits   = DRVUART_DATABITS_6;
    sParam.u8cStopBits   = DRVUART_STOPBITS_1;
    sParam.u8cParity   = DRVUART_PARITY_NONE;
    sParam.u8cRxTriggerLevel= DRVUART_FIFO_1BYTES;

 if(DrvUART_Open(UART_PORT0,&sParam) != E_SUCCESS)
 {
  printf("UART0 open failed\n");
  return FALSE;
 }
 return TRUE;
}

void SD5128_BYTE(unsigned char *buf,unsigned int length)
{
 int i;

 while(length--)
 {
  i=6;
  while(i>=0)
  {
   while(UART0->FSR.TX_FULL == 1);
   { 
    UART0->DATA = BIT2BYTE[(*buf>>i)&0x3];// printf(" 0x%02x",BIT2BYTE[(*buf>>i)&0x3]);
   }
   i=i-2;
  }
  buf++;
 }
}
void SD5128_Test(void)
{
 unsigned int i=0;
 unsigned char RGBDATA[3];   //RGB
 unsigned int  dly;

 printf("\n\r\n\r");
 printf("*** 9G-M0516 V1.00 Build by yuanxihua@21cn.com on ("__DATE__ " - " __TIME__ ")\n\r");
 printf("*** 9G-M0516 V1.00 Rebooting ...\n\r\n\r");
    
 SD5128_Init();
 while(1)
 {
  if(i++ > 0xFE) i=0;
  RGBDATA[0]=RGBDATA[1]=RGBDATA[2]=i; // printf("\n\ri=%02x |",i);
  SD5128_BYTE(RGBDATA,3);    // printf(" ||");//send rgbdata
  SD5128_BYTE(ENDCODE,4); //send endcode
  for(dly=0;dly<50;dly++) DrvSYS_Delay(1000); //delay 50ms
 }
}