diff options
Diffstat (limited to 'src/sample/io_sample/SPI/Psram/io_spi.c')
| -rw-r--r-- | src/sample/io_sample/SPI/Psram/io_spi.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/src/sample/io_sample/SPI/Psram/io_spi.c b/src/sample/io_sample/SPI/Psram/io_spi.c new file mode 100644 index 0000000..1b336e1 --- /dev/null +++ b/src/sample/io_sample/SPI/Psram/io_spi.c @@ -0,0 +1,251 @@ +/** +********************************************************************************************************* +* 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 yuan +* @date 2019-01-11 +* @version v1.0 +********************************************************************************************************* +*/ + +/* Includes ------------------------------------------------------------------*/ +#include "io_spi.h" +#include "io_uart.h" + + +/* Globals ------------------------------------------------------------------*/ +uint8_t GDMA_WriteCmdBuffer[5] = {SPI_PSRAM_WRITE, 0x01, 0x02, 0x00}; +uint8_t GDMA_ReadCmdBuffer[5] = {SPI_PSRAM_FAST_READ, 0x01, 0x02, 0x00, DUMMY_DATA}; + +uint8_t GDMA_Send_Buffer[GDMA_TRANSFER_SIZE + 5]; +uint8_t GDMA_Recv_Buffer[GDMA_TRANSFER_SIZE]; + +/** + * @brief Initialization of pinmux settings and pad settings. + * @param No parameter. + * @return void +*/ +void board_spi_init(void) +{ + Pad_Config(SPI_SCK_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + Pad_Config(SPI_MOSI_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + Pad_Config(SPI_MISO_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + Pad_Config(SPI_CS_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + + Pinmux_Config(SPI_SCK_PIN, SPI0_CLK_MASTER); + Pinmux_Config(SPI_MOSI_PIN, SPI0_MO_MASTER); + Pinmux_Config(SPI_MISO_PIN, SPI0_MI_MASTER); + Pinmux_Config(SPI_CS_PIN, SPI0_SS_N_0_MASTER); +} + +/** + * @brief Initialize gdma peripheral. + * @param No parameter. + * @return void + */ +void driver_spi_gdma_tx_init(void) +{ + /*----------------test buffer init------------------*/ + memcpy(GDMA_Send_Buffer, GDMA_WriteCmdBuffer, 4); + for (uint32_t i = 4; i < GDMA_TRANSFER_SIZE + 4; i++) + { + GDMA_Send_Buffer[i] = (i + 0x0C) & 0xFF; + } + + SPI_InitTypeDef SPI_InitStructure; + GDMA_InitTypeDef GDMA_InitStruct; + + SPI_DeInit(SPI0); + RCC_PeriphClockCmd(APBPeriph_SPI0, APBPeriph_SPI0_CLOCK, ENABLE); + + /*----------------------SPI init---------------------------------*/ + SPI_StructInit(&SPI_InitStructure); + SPI_InitStructure.SPI_Direction = SPI_Direction_TxOnly; + 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 = 0; + SPI_InitStructure.SPI_TxDmaEn = ENABLE; + SPI_InitStructure.SPI_TxWaterlevel = 15; + SPI_Init(SPI0, &SPI_InitStructure); + + /*---------------------GDMA initial------------------------------*/ + GDMA_StructInit(&GDMA_InitStruct); + GDMA_InitStruct.GDMA_ChannelNum = GDMA_SPI_TX_NUM; + GDMA_InitStruct.GDMA_DIR = GDMA_DIR_MemoryToPeripheral; + GDMA_InitStruct.GDMA_BufferSize = GDMA_TRANSFER_SIZE + 4; + GDMA_InitStruct.GDMA_SourceInc = DMA_SourceInc_Inc; + GDMA_InitStruct.GDMA_DestinationInc = DMA_DestinationInc_Fix; + + GDMA_InitStruct.GDMA_SourceDataSize = GDMA_DataSize_Byte; + GDMA_InitStruct.GDMA_DestinationDataSize = GDMA_DataSize_Byte; + GDMA_InitStruct.GDMA_SourceMsize = GDMA_Msize_4; + GDMA_InitStruct.GDMA_DestinationMsize = GDMA_Msize_4; + + GDMA_InitStruct.GDMA_SourceAddr = (uint32_t)GDMA_Send_Buffer; + GDMA_InitStruct.GDMA_DestinationAddr = (uint32_t)SPI0->DR; + GDMA_InitStruct.GDMA_DestHandshake = GDMA_Handshake_SPI0_TX; + GDMA_InitStruct.GDMA_ChannelPriority = 1; + + GDMA_Init(GDMA_Channel_Tx, &GDMA_InitStruct); + + /*-----------------GDMA IRQ-----------------------------*/ + NVIC_InitTypeDef NVIC_InitStruct; + NVIC_InitStruct.NVIC_IRQChannel = GDMA_Channel_Tx_IRQn; + NVIC_InitStruct.NVIC_IRQChannelPriority = 3; + NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStruct); + + /* Enable transfer interrupt */ + GDMA_INTConfig(GDMA_SPI_TX_NUM, GDMA_INT_Transfer, ENABLE); + SPI_Cmd(SPI0, ENABLE); + GDMA_Cmd(GDMA_SPI_TX_NUM, ENABLE); +} + +void driver_spi_gdma_rx_init(void) +{ + /*----------------test buffer init------------------*/ + memset(GDMA_Recv_Buffer, 0, sizeof(GDMA_Recv_Buffer)); + + SPI_InitTypeDef SPI_InitStructure; + GDMA_InitTypeDef GDMA_InitStruct; + + SPI_DeInit(SPI0); + + RCC_PeriphClockCmd(APBPeriph_SPI0, APBPeriph_SPI0_CLOCK, ENABLE); + + /*----------------------SPI init---------------------------------*/ + SPI_StructInit(&SPI_InitStructure); + SPI_InitStructure.SPI_Direction = SPI_Direction_EEPROM; + 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_TRANSFER_SIZE - 1; + SPI_InitStructure.SPI_RxDmaEn = ENABLE; + SPI_InitStructure.SPI_RxWaterlevel = 3; + SPI_Init(SPI0, &SPI_InitStructure); + SPI_SetRxSampleDly(SPI0, 1); + + /*---------------------GDMA initial------------------------------*/ + GDMA_StructInit(&GDMA_InitStruct); + GDMA_InitStruct.GDMA_ChannelNum = GDMA_SPI_RX_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_4; + GDMA_InitStruct.GDMA_DestinationMsize = GDMA_Msize_4; + + GDMA_InitStruct.GDMA_SourceAddr = (uint32_t)SPI0->DR; + GDMA_InitStruct.GDMA_DestinationAddr = (uint32_t)GDMA_Recv_Buffer; + GDMA_InitStruct.GDMA_SourceHandshake = GDMA_Handshake_SPI0_RX; + GDMA_InitStruct.GDMA_ChannelPriority = 1; + + GDMA_Init(GDMA_Channel_Rx, &GDMA_InitStruct); + + /*-----------------GDMA IRQ-----------------------------*/ + NVIC_InitTypeDef NVIC_InitStruct; + NVIC_InitStruct.NVIC_IRQChannel = GDMA_Channel_Rx_IRQn; + NVIC_InitStruct.NVIC_IRQChannelPriority = 3; + NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStruct); + + /* Enable transfer interrupt */ + GDMA_INTConfig(GDMA_SPI_RX_NUM, GDMA_INT_Transfer, ENABLE); + SPI_Cmd(SPI0, ENABLE); + GDMA_Cmd(GDMA_SPI_RX_NUM, ENABLE); + + /* Send read data command */ + SPI_SendBuffer(SPI0, GDMA_ReadCmdBuffer, 5); +} + +/** + * @brief Handle gdma data function. + * @param No parameter. + * @return void + */ +void io_handle_gdma_msg(T_IO_MSG *io_gdma_msg) +{ + uint8_t sub_type = io_gdma_msg->subtype; + uint8_t *p_buf = io_gdma_msg->u.buf; + if (sub_type == 0) + { + APP_PRINT_INFO0("[io_gdma] io_handle_gdma_msg: send data complete"); + driver_spi_gdma_rx_init(); + } + else if (sub_type == 1) + { + APP_PRINT_INFO1("[io_gdma] io_handle_gdma_msg: read data complete data_len = %d", + GDMA_TRANSFER_SIZE); + uart_senddata_continuous(UART0, p_buf, GDMA_TRANSFER_SIZE); + } +} + +/** + * @brief Demo code of operation about spi. + * @param No parameter. + * @return void +*/ +void spi_demo(void) +{ + APP_PRINT_INFO0("[io_spi] spi_psram_demo "); + driver_spi_gdma_tx_init(); +} + +/** + * @brief GDMA channel interrupt handler function. + * @param No parameter. + * @return void + */ +void GDMA_SPI_TX_Handler(void) +{ + GDMA_INTConfig(GDMA_SPI_TX_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_Send_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_SPI_TX_NUM, GDMA_INT_Block); + return; + } + + GDMA_ClearINTPendingBit(GDMA_SPI_TX_NUM, GDMA_INT_Transfer); + GDMA_Cmd(GDMA_SPI_TX_NUM, DISABLE); +} + +void GDMA_SPI_RX_Handler(void) +{ + GDMA_INTConfig(GDMA_SPI_RX_NUM, GDMA_INT_Transfer, DISABLE); + + T_IO_MSG int_gdma_msg; + int_gdma_msg.type = IO_MSG_TYPE_GDMA; + int_gdma_msg.subtype = 1; + 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_SPI_RX_NUM, GDMA_INT_Transfer); + return; + } + + GDMA_ClearINTPendingBit(GDMA_SPI_RX_NUM, GDMA_INT_Transfer); +} + +/******************* (C) COPYRIGHT 2019 Realtek Semiconductor Corporation *****END OF FILE****/ |