void lcdRefresh()
{
for (uint32_t y=0; y<LCD_H; y++) {
uint8_t *p = &displayBuf[(y>>3)*LCD_W];
uint8_t mask = (1 << (y%8));
Set_Address(0, y);
AspiCmd(0xAF);
LCD_CLK_HIGH();
LCD_A0_HIGH();
LCD_NCS_LOW();
for (uint32_t x=0; x<LCD_W; x++) {
LCD_WRITE_BIT(p[3*DISPLAY_PLAN_SIZE+x] & mask);
LCD_WRITE_BIT(p[2*DISPLAY_PLAN_SIZE+x] & mask);
LCD_WRITE_BIT(p[DISPLAY_PLAN_SIZE+x] & mask);
LCD_WRITE_BIT(p[x] & mask);
}
LCD_NCS_HIGH();
LCD_A0_HIGH();
WriteData(0);
}
}
// Analog SPI
void AspiCmd(u8 Command_Byte)
{
int i=8;
LCD_A0_LOW();
LCD_CLK_HIGH();
LCD_CLK_HIGH();
LCD_NCS_LOW();
while (i--) {
LCD_CLK_LOW();
if (Command_Byte&0x80)
LCD_MOSI_HIGH();
else
LCD_MOSI_LOW();
Command_Byte <<= 1;
LCD_CLK_LOW(); \
LCD_CLK_LOW(); \
LCD_CLK_HIGH();
LCD_CLK_HIGH();
}
LCD_NCS_HIGH();
LCD_A0_HIGH();
}
//Anolog spi
void AspiData(u8 Para_data)
{
int i=8;
LCD_CLK_HIGH();
LCD_A0_HIGH();
LCD_NCS_LOW();
while (i--) {
LCD_CLK_LOW();
if (Para_data&0x80)
LCD_MOSI_HIGH();
else
LCD_MOSI_LOW();
Para_data <<= 1;
__no_operation();
LCD_CLK_HIGH();
__no_operation();
}
LCD_NCS_HIGH();
LCD_A0_HIGH();
}
/***************************************************************************************************
* @fn lcd_data_write
*
* @brief LCD字节写入
* @param NULL
* @return 0 -- success
***************************************************************************************************/
void lcd_data_write(uint8_t data)
{
LCD_A0_HIGH();
LCD_NCS_LOW()
while ( ( LCD_SPI_MASTER->SR & SPI_SR_TXE ) == 0 )
{};
(void)LCD_SPI_MASTER->DR ; // Clear receive
LCD_SPI_MASTER->DR = data ;
while ( ( LCD_SPI_MASTER->SR & SPI_SR_RXNE ) == 0 )
{};
LCD_NCS_HIGH();
return 0;
}
/***************************************************************************************************
* @fn lcd_data_burst_write
*
* @brief LCD数据批量写入
* @param buf -- 要写入的数据的缓存
* len -- 写入数据的长度
* @return 1 -- busy
* -1 - failure
* 0 -- success
***************************************************************************************************/
int lcd_data_burst_write(uint8_t *buf, uint16_t len)
{
IF_PTR_IS_NULL_RET_NULLPTR_ERR(buf);
if(len > LCD_TX_BUFF_SIZE)
{
printf("lcd write lenth is too large,return @ %s, %s, %d\r\n", __FILE__, __func__, __LINE__);
return -1;
}
if(g_LcdWriteBusyFlag)
{
printf("lcd is busy, return @ %s, %s, %d\r\n", __FILE__, __func__, __LINE__);
return 1;
}
g_LcdWriteBusyFlag = 1;
lcd_cursor_addr_set(0,0);
LCD_A0_HIGH();
LCD_NCS_LOW();
//启动DMA
DMA_Cmd(LCD_DMA_STREAM, DISABLE);
DMA_ClearITPendingBit(LCD_DMA_STREAM, LCD_DMA_TC_FLAG);
memcpy(g_lcdTxBuff, buf, len);
DMA_SetCurrDataCounter(LCD_DMA_STREAM, len);
SPI_I2S_DMACmd(LCD_SPI_MASTER,SPI_I2S_DMAReq_Tx,ENABLE);
DMA_ITConfig(LCD_DMA_STREAM, DMA_IT_TC, ENABLE);
DMA_Cmd(LCD_DMA_STREAM,ENABLE);
printf("begin lcd dma write @ %s, %s, %d\r\n", __FILE__, __func__, __LINE__);
printf(" SPI3->CR1:%#x, SPI3->CR2:%#x, SPI3->SR:%#x, DMA1_Stream7->CR:%#x, DMA1->HIFCR:%#x\r\n", SPI3->CR1, SPI3->CR2, SPI3->SR, DMA1_Stream7->CR, DMA1->HIFCR);
return 0;
}
void AspiCmd(uint8_t Command_Byte)
{
int i=8;
LCD_A0_LOW();
LCD_CLK_HIGH();
LCD_NCS_LOW();
while (i--)
{
LCD_CLK_LOW();
if(Command_Byte&0x80)
{
LCD_MOSI_HIGH();
}
else LCD_MOSI_LOW();
Command_Byte=Command_Byte<<1;
LCD_CLK_HIGH();
}
LCD_NCS_HIGH();
LCD_A0_HIGH();
}