本帖最后由 arm120 于 2024-6-4 15:20 编辑
这是qspi和mdma配置
[C] 纯文本查看 复制代码 void QSPI_Init(void)
{
QSPI_Handler.Instance=QUADSPI;
QSPI_Handler.Init.ChipSelectHighTime=QSPI_CS_HIGH_TIME_1_CYCLE; //片选为高延时
QSPI_Handler.Init.ClockMode=QSPI_CLOCK_MODE_3; //配置时钟模式
QSPI_Handler.Init.ClockPrescaler=10; //配置时钟分频比
QSPI_Handler.Init.DualFlash=QSPI_DUALFLASH_DISABLE; //配置双闪存模式状态
QSPI_Handler.Init.FifoThreshold=32; //配置FIFO中字节阈值（仅在间接模式使用）
QSPI_Handler.Init.FlashID=QSPI_FLASH_ID_1; //配置使用的闪存
QSPI_Handler.Init.FlashSize=412*412*3-1; //配置闪存大小
QSPI_Handler.Init.SampleShifting=QSPI_SAMPLE_SHIFTING_HALFCYCLE; //配置采样移位
HAL_QSPI_Init(&QSPI_Handler);
__HAL_RCC_MDMA_CLK_ENABLE();
hmdma.Instance = MDMA_Channel0;
hmdma.Init.Request = MDMA_REQUEST_QUADSPI_FIFO_TH;
hmdma.Init.TransferTriggerMode = MDMA_BUFFER_TRANSFER;
hmdma.Init.Priority = MDMA_PRIORITY_HIGH;
hmdma.Init.Endianness = MDMA_LITTLE_ENDIANNESS_PRESERVE;
hmdma.Init.SourceInc = MDMA_SRC_INC_BYTE;
hmdma.Init.DestinationInc = MDMA_DEST_INC_DISABLE;
hmdma.Init.SourceDataSize = MDMA_SRC_DATASIZE_BYTE;
hmdma.Init.DestDataSize = MDMA_DEST_DATASIZE_BYTE;
hmdma.Init.DataAlignment = MDMA_DATAALIGN_PACKENABLE;
hmdma.Init.BufferTransferLength = 128;
hmdma.Init.SourceBurst = MDMA_SOURCE_BURST_SINGLE;
hmdma.Init.DestBurst = MDMA_DEST_BURST_SINGLE;
hmdma.Init.SourceBlockAddressOffset = 0;
hmdma.Init.DestBlockAddressOffset = 0;
if (HAL_MDMA_Init(&hmdma) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(&QSPI_Handler,hmdma,hmdma);
HAL_NVIC_SetPriority(MDMA_IRQn,0,0);
HAL_NVIC_EnableIRQ(MDMA_IRQn);
}
这是引脚配置
[C] 纯文本查看 复制代码 void QSPI_GPIOInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_QSPI;
PeriphClkInitStruct.QspiClockSelection = RCC_QSPICLKSOURCE_D1HCLK;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_QSPI_CLK_ENABLE();
GPIO_InitStructure.Pin=GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13;
GPIO_InitStructure.Mode=GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull=GPIO_PULLUP;
GPIO_InitStructure.Speed=GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate=GPIO_AF9_QUADSPI;
HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.Pin = GPIO_PIN_2;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull =GPIO_PULLUP;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = GPIO_AF9_QUADSPI;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.Pin = GPIO_PIN_6;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = GPIO_AF10_QUADSPI;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.Pin = GPIO_PIN_2;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = GPIO_AF9_QUADSPI;
HAL_GPIO_Init(GPIOE,&GPIO_InitStructure);
}
这是刷屏函数
[C] 纯文本查看 复制代码
#define BUFF_TOTAL 339488
uint8_t frame_cache[BUFF_TOTAL] __attribute__((section(".ARM.__at_0x24000000")));
void LCD_Fill1(uint32_t color)
{
uint8_t Color[2] = {color >> 8, color & 0xff};
// 填充 frame_cache 数组
for (uint32_t i = 0; i < BUFF_TOTAL; i += 2)
{
frame_cache[i] = Color[0];
frame_cache[i + 1] = Color[1];
}
LCD_Address_Set(0, 0, 454 - 1, 454- 1);
LCD_WR_REG(0x2C);
LCD_4LineTransmit_DATA_DMA(0x3C, BUFF_TOTAL, frame_cache);
}
发送接口
[C] 纯文本查看 复制代码
void LCD_4LineTransmit_DATA_DMA(uint8_t reg,uint32_t len,uint8_t *dat)
{
QSPI_CmdInitStructure.DummyCycles=0;
QSPI_CmdInitStructure.Instruction=0x32;
QSPI_CmdInitStructure.InstructionMode=QSPI_INSTRUCTION_1_LINE;
QSPI_CmdInitStructure.Address=reg<<8;
QSPI_CmdInitStructure.AddressMode=QSPI_ADDRESS_1_LINE;
QSPI_CmdInitStructure.AddressSize=QSPI_ADDRESS_24_BITS;
QSPI_CmdInitStructure.DataMode=QSPI_DATA_4_LINES;
QSPI_CmdInitStructure.NbData=len;
QSPI_CmdInitStructure.SIOOMode=QSPI_SIOO_INST_EVERY_CMD;
QSPI_CmdInitStructure.DdrMode=QSPI_DDR_MODE_DISABLE;
QSPI_CmdInitStructure.DdrHoldHalfCycle=QSPI_DDR_HHC_ANALOG_DELAY;
QSPI_CmdInitStructure.AlternateBytesSize=QSPI_ALTERNATE_BYTES_NONE;
HAL_QSPI_Command(&QSPI_Handler,&QSPI_CmdInitStructure,HAL_QPSI_TIMEOUT_DEFAULT_VALUE);
//HAL_QSPI_Transmit(&QSPI_Handler,dat,HAL_QSPI_TIMEOUT_DEFAULT_VALUE);
HAL_QSPI_Transmit_DMA(&QSPI_Handler,dat) ;
// uint32_t block_count = len / 128;
// uint32_t remaining_data = len % 128;
// if (block_count > 0) {
// if (HAL_MDMA_Start_IT(&hmdma, (uint32_t)dat, (uint32_t)&QSPI_Handler.Instance->DR, 128, block_count) != HAL_OK) {
// //Error_Handler();
// }
// }
// if (remaining_data > 0) {
// if (HAL_MDMA_Start_IT(&hmdma, (uint32_t)(dat + block_count * 128), (uint32_t)&QSPI_Handler.Instance->DR, remaining_data,1) != HAL_OK) {
// //Error_Handler();
// }
// }
//HAL_MDMA_Start_IT(&hmdma,(uint32_t)dat,(uint32_t)&QSPI_Handler.Instance->DR,len,1);
}
| 
发表于 2024-6-4 15:11:37
发表于 2024-6-4 15:35:57
楼主
