// 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();
}
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);
}
}
void AspiCmd(uint8_t Command_Byte)
{
LCD_A0_LOW() ;
LCD_NCS_LOW() ;
while ( ( SPI3->SR & SPI_SR_TXE ) == 0 ) {
// wait
}
(void)SPI3->DR ; // Clear receive
SPI3->DR = Command_Byte ;
while ( ( SPI3->SR & SPI_SR_RXNE ) == 0 ) {
// wait
}
LCD_NCS_HIGH() ;
}
/**
* @brief Send a byte to LCD
* @param DataType Type of Data to be sent
* @param DataToSend Data to be sent
* @retval None
*/
void LCD_SendByte(uint8_t DataType, uint8_t DataToSend)
{
/* Enable access to LCD */
LCD_NCS_HIGH();
/* Send Synchro/Mode byte */
LCD_SPISendByte(DataType);
/* Send byte high nibble */
LCD_SPISendByte((uint8_t)(DataToSend & (uint8_t)0xF0));
/* Send byte low nibble */
LCD_SPISendByte((uint8_t)((uint8_t)(DataToSend << 4) & (uint8_t)0xF0));
_delay_(80);
/* Disable access to LCD */
LCD_NCS_LOW();
}
//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_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();
}
void refreshDisplay()
{
Set_Address( 0, 0 ) ;
LCD_NCS_LOW() ;
GPIOC->BSRRL = PIN_LCD_A0 ; // A0 high
convertDisplay() ;
// setupSPIdma() ;
DmaDebugDone = 0 ;
startSpiDma() ;
// DMA1_Stream7->CR |= DMA_SxCR_EN ; // Enable DMA
// SPI3->CR2 |= SPI_CR2_TXDMAEN ;
// uint32_t x ;
if ( Main_running )
{
CoWaitForSingleFlag( LcdFlag, 10 ) ;
DmaDebugDone = 0x80 ;
}
// if ( x == E_OK )
// {
// }
// while ( ( DMA1->HISR & DMA_HISR_TCIF7 ) == 0 )
// {
// // wait
// if ( DmaDone )
// {
// DmaDebugNDTR = DMA1_Stream7->NDTR ;
// DmaDebugDone = 1 ;
// }
// }
// DmaDebugDone |= 0x20 ;
while ( DmaDone == 0 )
{
// wait
// if ( DMA1->HISR & DMA_HISR_TCIF7 )
// {
// SPI3->CR2 &= ~SPI_CR2_TXDMAEN ;
// DMA1_Stream7->CR &= ~DMA_SxCR_EN ; // Disable DMA
// break ;
// }
}
DmaDebugDone |= 1 ;
if ( DMA1_Stream7->CR & DMA_SxCR_EN )
{
DmaDebugDone |= 0x10 ;
}
// if ( DMA1_Stream7->NDTR )
// {
// while ( ( DMA1->HISR & DMA_HISR_TCIF7 ) == 0 )
// {
// // wait
// }
// DmaDebugDone |= 0x20 ;
// }
// SPI3->CR2 &= ~SPI_CR2_TXDMAEN ;
// DMA1_Stream7->CR &= ~DMA_SxCR_EN ; // Disable DMA
while ( ( SPI3->SR & SPI_SR_TXE ) == 0 )
{
} // Last byte being sent
while ( SPI3->SR & SPI_SR_BSY )
{
// wait
}
GPIOA->BSRRL = PIN_LCD_NCS ; // CS high
}