diff options
Diffstat (limited to 'src/sample/io_sample/SPI/GDMA_Singleblock/io_gdma.c')
| -rw-r--r-- | src/sample/io_sample/SPI/GDMA_Singleblock/io_gdma.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/sample/io_sample/SPI/GDMA_Singleblock/io_gdma.c b/src/sample/io_sample/SPI/GDMA_Singleblock/io_gdma.c new file mode 100644 index 0000000..6f21b79 --- /dev/null +++ b/src/sample/io_sample/SPI/GDMA_Singleblock/io_gdma.c @@ -0,0 +1,128 @@ +/** +********************************************************************************************************* +* Copyright(c) 2018, Realtek Semiconductor Corporation. All rights reserved. +********************************************************************************************************** +* @file io_gdma.c +* @brief This file provides demo code of meomory to memory transfer by gdma. +* @details +* @author echo +* @date 2021-05-24 +* @version v1.0 +********************************************************************************************************* +*/ + +/* Includes ------------------------------------------------------------------*/ +#include "io_gdma.h" +#include "io_UART.h" + + +/* Globals ------------------------------------------------------------------*/ +uint8_t GDMA_WriteCmdBuffer[5] = {0x0B, 0x01, 0x00, 0x00, 0x00}; +uint8_t GDMA_Recv_Buffer[GDMA_TRANSFER_SIZE]; + +/** + * @brief Initialize gdma peripheral. + * @param No parameter. + * @return void + */ +void driver_spi_gdma_init(void) +{ + /*----------------test buffer init------------------*/ + memset(GDMA_Recv_Buffer, 0, sizeof(GDMA_Recv_Buffer) / sizeof(GDMA_Recv_Buffer[0])); + + SPI_InitTypeDef SPI_InitStructure; + GDMA_InitTypeDef GDMA_InitStruct; + + SPI_DeInit(FLASH_SPI); + RCC_PeriphClockCmd(APBPeriph_SPI0, APBPeriph_SPI0_CLOCK, ENABLE); + + /*----------------------SPI init---------------------------------*/ + SPI_StructInit(&SPI_InitStructure); + SPI_InitStructure.SPI_Direction = SPI_Direction_EEPROM;//SPI_Direction_RxOnly; + SPI_InitStructure.SPI_Mode = SPI_Mode_Master; + SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; + SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; + SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; + SPI_InitStructure.SPI_BaudRatePrescaler = 100; + SPI_InitStructure.SPI_FrameFormat = SPI_Frame_Motorola; + SPI_InitStructure.SPI_NDF = GDMA_READ_SIZE_MAX - 1; + SPI_InitStructure.SPI_RxDmaEn = ENABLE; + SPI_InitStructure.SPI_RxWaterlevel = 1; + SPI_Init(FLASH_SPI, &SPI_InitStructure); + + /*---------------------GDMA initial------------------------------*/ + GDMA_StructInit(&GDMA_InitStruct); + GDMA_InitStruct.GDMA_ChannelNum = GDMA_CHANNEL_NUM; + GDMA_InitStruct.GDMA_DIR = GDMA_DIR_PeripheralToMemory; + GDMA_InitStruct.GDMA_BufferSize = GDMA_TRANSFER_SIZE; + GDMA_InitStruct.GDMA_SourceInc = DMA_SourceInc_Fix; + GDMA_InitStruct.GDMA_DestinationInc = DMA_DestinationInc_Inc; + + GDMA_InitStruct.GDMA_SourceDataSize = GDMA_DataSize_Byte; + GDMA_InitStruct.GDMA_DestinationDataSize = GDMA_DataSize_Byte; + GDMA_InitStruct.GDMA_SourceMsize = GDMA_Msize_1; + GDMA_InitStruct.GDMA_DestinationMsize = GDMA_Msize_1; + + GDMA_InitStruct.GDMA_SourceAddr = (uint32_t)FLASH_SPI->DR; + GDMA_InitStruct.GDMA_DestinationAddr = (uint32_t)GDMA_Recv_Buffer; + GDMA_InitStruct.GDMA_SourceHandshake = GDMA_Handshake_SPI0_RX; + GDMA_InitStruct.GDMA_ChannelPriority = 1; + GDMA_InitStruct.GDMA_Multi_Block_En = 0; + + GDMA_Init(GDMA_Channel, &GDMA_InitStruct); + + /*-----------------GDMA IRQ-----------------------------*/ + NVIC_InitTypeDef NVIC_InitStruct; + NVIC_InitStruct.NVIC_IRQChannel = GDMA_Channel_IRQn; + NVIC_InitStruct.NVIC_IRQChannelPriority = 3; + NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStruct); + + /* Enable transfer interrupt */ + GDMA_INTConfig(GDMA_CHANNEL_NUM, GDMA_INT_Transfer, ENABLE); + GDMA_Cmd(GDMA_CHANNEL_NUM, ENABLE); + SPI_Cmd(FLASH_SPI, ENABLE); + + /* Send read data command */ + SPI_SendBuffer(FLASH_SPI, GDMA_WriteCmdBuffer, 5); +} + +/** + * @brief Handle gdma data function. + * @param No parameter. + * @return void + */ +void io_handle_gdma_msg(T_IO_MSG *io_gdma_msg) +{ + uint8_t *p_buf = io_gdma_msg->u.buf; + uint16_t data_len = (GDMA_TRANSFER_SIZE); + APP_PRINT_INFO1("[io_gdma] io_handle_gdma_msg: read data complete,data_len = %d", data_len); + uart_senddata_continuous(UART0, &p_buf[data_len], data_len); +} + +/** + * @brief GDMA channel interrupt handler function. + * @param No parameter. + * @return void + */ +void GDMA_Channel_Handler(void) +{ + GDMA_INTConfig(GDMA_CHANNEL_NUM, GDMA_INT_Transfer, DISABLE); + + T_IO_MSG int_gdma_msg; + + int_gdma_msg.type = IO_MSG_TYPE_GDMA; + int_gdma_msg.subtype = 0; + int_gdma_msg.u.buf = (void *)GDMA_Recv_Buffer; + if (false == app_send_msg_to_apptask(&int_gdma_msg)) + { + APP_PRINT_ERROR0("[io_gdma]GDMA_Channel_Handler: Send int_gdma_msg failed!"); + //Add user code here! + GDMA_ClearINTPendingBit(GDMA_CHANNEL_NUM, GDMA_INT_Transfer); + return; + } + GDMA_ClearINTPendingBit(GDMA_CHANNEL_NUM, GDMA_INT_Transfer); + GDMA_INTConfig(GDMA_CHANNEL_NUM, GDMA_INT_Transfer, ENABLE); +} + +/******************* (C) COPYRIGHT 2019 Realtek Semiconductor Corporation *****END OF FILE****/ |