MT2503D GPIO编程

DrvGen的使用

打开mcu\custom\drv\Drv_Tool下的DrvGen.exe，如下图所示：

点击"Open"，选择自己的.dws文件，比如我的是mcu\custom\codegen\ULTRA2503D_11C_BB\codegen.dws，点"Edit"进行具体的编辑，如下图：
对着原理图配置实际需要的IO，没用到的就不要修改了，免得出现问题。选项后面的VarName可以给IO配置别名，调用的时候直接用这个别名就可以了。配置完成后，点"确定"。先点“Save”保存，再点击“Gen Code”生成代码。

更详细的的使用方法查看《Driver_allinone_for_MT6261x_MT250x.pdf》！！！

GPIO的控制方式一

使用mcu\hal\peripheral\src\gpio.c下的这几个接口：

函数原型：void GPIO_ModeSetup(kal_uint16 pin, kal_uint16 conf_dada)

功能：设置GPIO的工作模式是作为GPIO，还是作为专有功能接口。

参数：

pin：GPIO 的pin脚号，对应于芯片的上的GPIO标号

conf_dada：值有0~3。其中0是表示作为GPIO模式，其他根据专有功能的不同进行设置。

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函数原型：void GPIO_InitIO(char direction, char port)

功能：初始化GPIO的工作方向是作为输入，还是作为输出

参数：

direction：工作方向，0表示输入，1表示输出

port：GPIO的pin脚

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函数原型：char GPIO_ReadIO(char port)

功能：从GPIO读取数据

参数：

port：GPIO的pin脚

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函数原型：void GPIO_WriteIO(kal_char data, kal_char port)

功能：往GPIO写数据

参数：

data： 1表示给高电平，0表示给低电平

port：GPIO的pin脚

GPIO的控制方式二

使用mcu\hal\peripheral\src\dcl_gpio.c下的接口。主要是下面三个：

/*-----------------------------------------------------------------------*
* FUNCTION
*  DclGPIO_Open
* DESCRIPTION
*  This function is to open the GPIO module and get a handle. Note that multiple opens are allowed.
*
* PARAMETERS
*   eDev: - only valid for DCL_GPIO,DCL_GPO,DCL_GPIO_CLK.
*   flags: - no sepcial flags is needed. Please use FLAGS_NONE
*
* RETURN VALUES
*   DCL_HANDLE_INVALID: - Open failed.
* other value: - a valid handle
*
*-----------------------------------------------------------------------*/
DCL_HANDLE DclGPIO_Open(DCL_DEV eDev, DCL_FLAGS flags)

/*-----------------------------------------------------------------------*
* FUNCTION
*  DclGPIO_Control
*
* DESCRIPTION
*  This function is to send command to control the GPIO module.
*
* PARAMETERS
*   handle - a valid handle return by DclGPIO_Open()
*  cmd   - a control command for GPIO module
*          1. GPIO_CMD_READ: to read the input value from the GPIO port contain in handle.
*          2. GPIO_CMD_WRITE_LOW: to write low to the output of GPIO port contain in handle.
*          3. GPIO_CMD_WRITE_HIGH: to write high to the output of  GPIO port contain in handle.
*          4. GPIO_CMD_SET_MODE_0: to set the mode of the GPIO port contain in handle as mode 0.
*          5. GPIO_CMD_SET_MODE_1: to set the mode of the GPIO port contain in handle as mode 1.
*          6. GPIO_CMD_SET_MODE_2: to set the mode of the GPIO port contain in handle as mode 2.
*          7. GPIO_CMD_SET_MODE_3: to set the mode of the GPIO port contain in handle as mode 3.
*          8. GPIO_CMD_SET_DIR_OUT: to set the direction of the GPIO port as output.
*          9. GPIO_CMD_SET_DIR_IN: to set the direction of the GPIO port as input.
*         10. GPIO_CMD_RETURN_MODE: to get the mode of the GPIO port
*         11. GPIO_CMD_RETURN_DIR: to get the direction of the GPIO port
*         12. GPIO_CMD_RETURN_OUT: to return the output value of the GPIO port
*         13. GPIO_CMD_ENABLE_PULL: to enable the pull resister for a GPIO port
*         14. GPIO_CMD_DISABLE_PULL: to disenable the pull resister for a GPIO port
*         15. GPIO_CMD_SET_PULL_HIGH: to select the pull up for a GPIO port
*         16. GPIO_CMD_SET_PULL_LOW: to select the pull down for a GPIO port
*         17. GPIO_CMD_SET_DINV: to set the inversion of a GPIO port
*         18. GPIO_CMD_SET_DEBUG: to enable or disable debug mode
*         19. GPIO_CMD_SET_CLK_OUT: to set the clock frequency for a clock output
*
*         20. GPO_CMD_RETURN_MODE: to get the mode of the GPO port
*         21. GPO_CMD_RETURN_OUT: to return the output value of the GPO port
*         22. GPO_CMD_WRITE_HIGH: to write high to the output of  GPO port contain in handle.
*         23. GPO_CMD_WRITE_LOW: to write low to the output of GPO port contain in handle.
*         24. GPO_CMD_MODE_SET_0: to set the mode of the GPIO port contain in handle as mode 0.
*         25. GPO_CMD_MODE_SET_1: to set the mode of the GPI1 port contain in handle as mode 1.
*         26. GPO_CMD_MODE_SET_2: to set the mode of the GPI2 port contain in handle as mode 2.
*         27. GPO_CMD_MODE_SET_3: to set the mode of the GPI3 port contain in handle as mode 3.

*         28. GPIO_CMD_SET_DIR_OUT_NO_IRQ_MASK_T: to set the direction of the GPIO port as output without IRQ protect.
*         29. GPIO_CMD_SET_DIR_IN_NO_IRQ_MASK_T:  to set the direction of the GPIO port as input without IRQ protect
*         30. GPIO_CMD_WRITE_HIGH_NO_IRQ_MASK_T:  to write high to the output of  GPIO port contain in handle without IRQ protect.
*         31. GPIO_CMD_WRITE_LOW_NO_IRQ_MASK_T:   to write low to the output of GPIO port contain in handle without IRQ protect.
*         32. GPIO_CMD_READ_NO_IRQ_MASK_T:        to read the input value from the GPIO port contain in handle without IRQ protect..

*         33. GPIO_CMD_WRITE_FOR_SPI_T: 
*  data - for 1. GPIO_CMD_READ: 
*          1. GPIO_CMD_READ: pointer to a GPIO_CTRLS structure
*          2. GPIO_CMD_WRITE_LOW:       NULL.
*          3. GPIO_CMD_WRITE_HIGH:      NULL.
*          4. GPIO_CMD_SET_MODE_0:      NULL.
*          5. GPIO_CMD_SET_MODE_1:      NULL.
*          6. GPIO_CMD_SET_MODE_2:      NULL.
*          7. GPIO_CMD_SET_MODE_3:      NULL.
*          8. GPIO_CMD_SET_DIR_OUT:     NULL.
*          9. GPIO_CMD_SET_DIR_IN:      NULL.
*         10. GPIO_CMD_RETURN_MODE: pointer to a GPIO_CTRL_RETURN_MODE_T structure
*         11. GPIO_CMD_RETURN_DIR:  pointer to a GPIO_CTRL_SET_DIR_T structure
*         12. GPIO_CMD_RETURN_OUT:  pointer to a GPIO_CTRL_RETURN_OUT_T structure
*         13. GPIO_CMD_ENABLE_PULL:     NULL.
*         14. GPIO_CMD_DISABLE_PULL:    NULL.
*         15. GPIO_CMD_SET_PULL_HIGH:   NULL.   
*         16. GPIO_CMD_SET_PULL_LOW:    NULL.
*         17. GPIO_CMD_SET_DINV:  pointer to a GPIO_CTRL_SET_DINV_T structure
*         18. GPIO_CMD_SET_DEBUG: pointer to a GPIO_CTRL_SET_DEBUG_T structure
*         19. GPIO_CMD_SET_CLK_OUT: pointer to a GPIO_CTRL_SET_CLK_OUT_T structure
*
*         20. GPO_CMD_RETURN_MODE: pointer to a GPO_CTRL_RETURN_MODE_T structure
*         21. GPO_CMD_RETURN_OUT:  pointer to a GPO_CTRL_RETURN_OUT_T structure
*         22. GPO_CMD_WRITE_HIGH: NULL.
*         23. GPO_CMD_WRITE_LOW:  NULL.
*         24. GPO_CMD_MODE_SET_0: NULL..
*         25. GPO_CMD_MODE_SET_1: NULL..
*         26. GPO_CMD_MODE_SET_2: NULL.
*         27. GPO_CMD_MODE_SET_3: NULL.

*         28. GPIO_CMD_SET_DIR_OUT_NO_IRQ_MASK_T: NULL.
*         29. GPIO_CMD_SET_DIR_IN_NO_IRQ_MASK_T:  NULL.
*         30. GPIO_CMD_WRITE_HIGH_NO_IRQ_MASK_T:  NULL.
*         31. GPIO_CMD_WRITE_LOW_NO_IRQ_MASK_T:   NULL.
*         32. GPIO_CMD_READ_NO_IRQ_MASK_T:        pointer to a GPIO_CTRLS structure

*         33. GPIO_CMD_WRITE_FOR_SPI_T: pointer to
* RETURNS
*   STATUS_OK - command is executed successfully.
*   STATUS_FAIL - command is failed.
*   STATUS_INVALID_CMD - The command is invalid.
*   STATUS_INVALID_HANDLE - The handle is invalid.
*   STATUS_INVALID_CTRL_DATA - The ctrl data is not valid.
*-----------------------------------------------------------------------*/
DCL_STATUS DclGPIO_Control(DCL_HANDLE handle, DCL_CTRL_CMD cmd, DCL_CTRL_DATA_T *data)

/*-----------------------------------------------------------------------*
* FUNCTION
*  DclGPIO_Close
*
* DESCRIPTION
*  This function is not supported for the GPIO module now.
*
* PARAMETERS
*   N/A
*
* RETURNS
*   STATUS_UNSUPPORTED
*
*-----------------------------------------------------------------------*/
DCL_STATUS DclGPIO_Close(DCL_HANDLE handle)

需要注意的是：

• DclGPIO_Open的第二个参数flags，其实是实际IO的引脚号，而不是像注释中说的那样。因此调用是这样的DclGPIO_Open(DCL_GPIO, WIFI_UART_RX_PIN_NUM)；
• GPIO_CMD_SET_MODE_0是表示作为GPIO模式，其他根据专有功能的不同进行设置，跟GPIO_ModeSetup一样；