#include "ZLG7290.h"

#define wAddr (uint16_t)0x70U					//ZLG7290写器件地址
#define rAddr (uint16_t)0x71U  					//ZLG7290读器件地址
#define DpramAddr (uint16_t)0x10				//ZLG7290显示缓冲区起始子地址
#define KeyAddr (uint16_t)0x01					//ZLG7290键值寄存器子地址

static const uint8_t keyval[] = {0x03, 0x1c, 0x1b, 0x1a, 0x14, 0x13, 0x12, 0x0c, 0x0b, 0x0a, 0x19, 0x11, 0x09, 0x01, 0x02};
static const uint8_t SegCode[] = {0xfc, 0x0c, 0xda, 0xf2, 0x66, 0xb6, 0xbe, 0xe0, 0xfe, 0xe6, 0xee, 0x3e, 0x9c, 0x7a, 0x00};	 //定义字段码表

extern I2C_HandleTypeDef hi2c1;

uint8_t ZLG7290_Read(void)
{
  uint8_t i;
  uint8_t buf[1];
  while(HAL_I2C_Mem_Read (&hi2c1, rAddr, KeyAddr, 1, buf, 1, 0x10) != HAL_OK );
  for(i = 0; i < 15; i++)
    {
      if(buf[0] == keyval[i]) break;
    }
  return i;
}

void ZLG7290_Write1Byte(uint16_t r, uint8_t *p)   					//写一位字段码
{
  while(HAL_I2C_Mem_Write (&hi2c1, wAddr, r, 1, p, 1, 0x10) != HAL_OK);
}

void ZLG7290_Write(uint8_t *buf)								//写8位字段码
{
  uint8_t DBuff[8];
  uint8_t i;
  uint16_t p = DpramAddr;
  uint8_t *p1;
  for(i = 0; i < 8; i++)
    {
      DBuff[i] = SegCode[buf[i]];    		//求各字符的字段码
    }

  p1 = &DBuff[0];						//p1指向待显示字符的字段码

  for(i = 0; i < 8; i++)
    {
      ZLG7290_Write1Byte(p++, p1++);    	//调用一次，写一位字段码
      HAL_Delay(5);
    }
}