C++工程移植官方高速USB设备失败！

[lichengxiang]

最近移植官方例程lpcxpresso54628_dev_msc_sdcard_freertos,搭配官方提供的LPCXpresso546xx开发板。由于例程给出的是C工程代码，我需要用C++工程，所以新创建一个C++工程，把例程移植到C++代码里。C++代码中只调用原来例程中的主函数，其余代码全部移植官方例程。编译下载之后，发现可以实现USB的全速设备，当在usb_device_config.h把宏定义改为高速设备时，会出现USB设备未识别。。。。求解！（后面附移植后的代码，求大神指导）

[ZhangJennie]

HI

Let's talk about NXP official SDK demo code dev_msc_sdcard_freertos first.

How does it works if you enable USB1 in the same way?

Have a nice day

Jun Zhang

[ZhangJennie]

I have verified this SDK demo code can work for HS USB without problem by changing the device configuration as

/*! @brief LPC USB IP3511 FS instance count */
#define USB_DEVICE_CONFIG_LPCIP3511FS (0U)

/*! @brief LPC USB IP3511 HS instance count */
#define USB_DEVICE_CONFIG_LPCIP3511HS (1U)

From the error message you had, the problem should be USB1 initialization failed. 

I suggest you compare the USB1 config registers setting in debugger with comparing the same of the SDK USB demo.

Have a great day,
Jun Zhang

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[lichengxiang]

I have try many times,I transplant all code from the SDK demo,include initialization code.I check the BOARD_InitPins(),They are the same.If you direct run SDK demo by changing the device configuration,I know that is OK.Could you verify the demo that I have uploaderde?  I check the code in debugger  mode,it is run ok.It could run USB1_IRQHandle() when I set the breakpoints.I didn't find any abnormalities.Could you help me to look at it, please?