关于对SPI进行分时复用

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我这边有个SPI屏幕,同时有时候还要操作SPI_FLASH, da14585的硬件SPI资源只有一路,如果对该路SPI进行分时复用,一下是我经过尝试失败后的代码,希望予以解决,思路大概是在操作flash的时候将SPI分配给flash,然后进行读写操作,再将SPI分配给屏幕,进行显示刷新

Void uint8_data_from_flash (uint8_t* ptr, uint8_t size)
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GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_CS_PIN, OUTPUT, PID_SPI_EN, true);
GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_CLK_PIN, OUTPUT, PID_SPI_CLK, false);
GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_DO_PIN, OUTPUT, PID_SPI_DO, false);
GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_DI_PIN, INPUT, PID_SPI_DI, true);

spi_flash_enable (SPI_EN_GPIO_PORT SPI_EN_GPIO_PIN);

spi_flash_init (SPI_FLASH_DEFAULT_SIZE SPI_FLASH_DEFAULT_PAGE);

/ /保存数据
spi_flash_read_data (ptr、SPI_SAVE_BLOCK、大小);

//关闭SPI Flash
spi_flash_power_down ();

GPIO_ConfigurePin(OLED_DC_PORT, OLED_DC_PIN, OUTPUT, PID_GPIO, true);
GPIO_ConfigurePin(OLED_RES_PORT, OLED_RES_PIN, OUTPUT, PID_GPIO, true);
GPIO_ConfigurePin(OLED_DIN_PORT, OLED_DIN_PIN, OUTPUT, PID_SPI_DO, true);
GPIO_ConfigurePin(OLED_CLK_PORT, OLED_CLK_PIN, OUTPUT, PID_SPI_CLK, true);
spi_init (&spi_driver_cs_pad、SPI_MODE_8BIT SPI_ROLE_MASTER、SPI_CLK_IDLE_POL_HIGH SPI_PHA_MODE_0, SPI_MINT_ENABLE, SPI_XTAL_DIV_2);
spi_flash_release_from_power_down ();
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(uint8_t* ptr, uint8_t size)
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GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_CS_PIN, OUTPUT, PID_SPI_EN, true);
GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_CLK_PIN, OUTPUT, PID_SPI_CLK, false);
GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_DO_PIN, OUTPUT, PID_SPI_DO, false);
GPIO_ConfigurePin(SPI_GPIO_PORT, SPI_DI_PIN, INPUT, PID_SPI_DI, true);

spi_flash_enable (SPI_EN_GPIO_PORT SPI_EN_GPIO_PIN);

spi_flash_init (SPI_FLASH_DEFAULT_SIZE SPI_FLASH_DEFAULT_PAGE);

/ /保存数据
spi_flash_block_erase (SPI_SAVE_BLOCK SECTOR_ERASE);
spi_flash_write_data (ptr、SPI_SAVE_BLOCK、大小);

//关闭SPI Flash
spi_flash_power_down ();

GPIO_ConfigurePin(OLED_DC_PORT, OLED_DC_PIN, OUTPUT, PID_GPIO, true);
GPIO_ConfigurePin(OLED_RES_PORT, OLED_RES_PIN, OUTPUT, PID_GPIO, true);
GPIO_ConfigurePin(OLED_DIN_PORT, OLED_DIN_PIN, OUTPUT, PID_SPI_DO, true);
GPIO_ConfigurePin(OLED_CLK_PORT, OLED_CLK_PIN, OUTPUT, PID_SPI_CLK, true);
spi_init (&spi_driver_cs_pad、SPI_MODE_8BIT SPI_ROLE_MASTER、SPI_CLK_IDLE_POL_HIGH SPI_PHA_MODE_0, SPI_MINT_ENABLE, SPI_XTAL_DIV_2);
spi_flash_release_from_power_down ();
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