diff options
Diffstat (limited to 'src/sample/io_sample/SPI/Flash/io_spi.c')
| -rw-r--r-- | src/sample/io_sample/SPI/Flash/io_spi.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/sample/io_sample/SPI/Flash/io_spi.c b/src/sample/io_sample/SPI/Flash/io_spi.c new file mode 100644 index 0000000..508d29c --- /dev/null +++ b/src/sample/io_sample/SPI/Flash/io_spi.c @@ -0,0 +1,124 @@ +/** +********************************************************************************************************* +* Copyright(c) 2018, Realtek Semiconductor Corporation. All rights reserved. +********************************************************************************************************* +* @file io_spi.c +* @brief This file provides demo code of spi master. + GD25Q128E is slave. + Read the chip id of GD25Q128E. +* @details +* @author yuan +* @date 2018-12-07 +* @version v1.0 +********************************************************************************************************* +*/ + +/* Includes ------------------------------------------------------------------*/ +#include "io_spi.h" + +#include "spi_flash.h" +#include "app_task.h" + + +/** + * @brief Initialization of pinmux settings and pad settings. + * @param No parameter. + * @return void +*/ +void board_spi_init(void) +{ + Pad_Config(SPI0_SCK_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + Pad_Config(SPI0_MOSI_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + Pad_Config(SPI0_MISO_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + Pad_Config(SPI0_CS_PIN, PAD_PINMUX_MODE, PAD_IS_PWRON, PAD_PULL_UP, PAD_OUT_ENABLE, PAD_OUT_HIGH); + + Pinmux_Deinit(P4_0); + Pinmux_Deinit(P4_1); + Pinmux_Deinit(P4_2); + Pinmux_Deinit(P4_3); + + Pinmux_Config(SPI0_SCK_PIN, SPI0_CLK_MASTER); + Pinmux_Config(SPI0_MOSI_PIN, SPI0_MO_MASTER); + Pinmux_Config(SPI0_MISO_PIN, SPI0_MI_MASTER); + Pinmux_Config(SPI0_CS_PIN, SPI0_SS_N_0_MASTER); +} + +/** + * @brief Initialize spi peripheral. + * @param No parameter. + * @return void + */ +//void SPI_InitConfiguration(void) +//{ +// SPI_InitTypeDef SPI_InitStructure; + +// 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 = 16; +// SPI_InitStructure.SPI_RxThresholdLevel = 8; +// SPI_InitStructure.SPI_FrameFormat = SPI_Frame_Motorola; +// SPI_InitStructure.SPI_NDF = 0; +// SPI_Init(SPI0, &SPI_InitStructure); + +// SPI_Cmd(SPI0, ENABLE); +//} + +void driver_spi_init(void) +{ + RCC_PeriphClockCmd(APBPeriph_SPI0, APBPeriph_SPI0_CLOCK, ENABLE); + + SPI_InitTypeDef SPI_InitStruct; + SPI_StructInit(&SPI_InitStruct); + + SPI_InitStruct.SPI_Direction = SPI_Direction_FullDuplex; + SPI_InitStruct.SPI_Mode = SPI_Mode_Master; + SPI_InitStruct.SPI_DataSize = SPI_DataSize_8b; + SPI_InitStruct.SPI_CPOL = SPI_CPOL_High; + SPI_InitStruct.SPI_CPHA = SPI_CPHA_2Edge; + SPI_InitStruct.SPI_BaudRatePrescaler = 20; + /* SPI_Direction_EEPROM mode read data length. */ + SPI_InitStruct.SPI_RxThresholdLevel = 1;/* Flash id length = 3*/ + SPI_InitStruct.SPI_NDF = 0;/* Flash id length = 3*/ + SPI_InitStruct.SPI_FrameFormat = SPI_Frame_Motorola; + SPI_Init(SPI0, &SPI_InitStruct); + + SPI_Cmd(SPI0, ENABLE); + +} + +/** + * @brief Demo code of operation about spi. + * @param No parameter. + * @return void +*/ +void spi_demo(void) +{ + uint8_t flash_id[10] = {0}; + uint8_t write_data[100]; + uint8_t read_data[105] = {0}; + for (uint16_t i = 0; i < 100; i++) + { + write_data[i] = i & 0xFF; + } + + spi_flash_read_id(flash_id); + APP_PRINT_INFO1("[io_spi] spi_demo: flash_id = %b ", TRACE_BINARY(3, flash_id)); + + spi_flash_sector_erase(0x001000); + APP_PRINT_INFO0("[io_spi] spi_demo: spi_flash_sector_erase done"); + + spi_flash_read(SPI_FLASH_FAST_READ, 0x001000, read_data, 100); +// APP_PRINT_INFO1("[io_spi] spi_demo: read_data = %b,", TRACE_BINARY(100, &read_data[5])); + APP_PRINT_INFO1("[io_spi] spi_demo: read_data = %b,", TRACE_BINARY(100, read_data)); + + spi_flash_page_write(0x001000, write_data, 100); + + spi_flash_read(SPI_FLASH_FAST_READ, 0x001000, read_data, 100); + APP_PRINT_INFO1("[io_spi] spi_demo: read_data = %b,", TRACE_BINARY(100, read_data)); +} + + |