Hi,

Problem is first coming from the fact the SDK doesn't compile the USB files of the middle-ware, because the part of the code is commented ! See in file : https://github.com/sipeed/platform-gd32v/blob/master/builder/frameworks/firmware_library.py

The commented code :
`libs = [
env.BuildLibrary(
join("$BUILD_DIR", "standard_peripheral"),
join(FRAMEWORK_DIR, "GD32VF103_standard_peripheral")),

# env.BuildLibrary(

# join("$BUILD_DIR", "usbfs_driver"),

# join(FRAMEWORK_DIR, "GD32VF103_usbfs_driver")),

env.BuildLibrary(
    join("$BUILD_DIR", "RISCV"),
    join(FRAMEWORK_DIR, "RISCV")),

]`

I think the problem start from here.

Cheers,

from platform-gd32v.

C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c:251:20: error: '__packed' undeclared (first use in this function) 251 | *fifo = *((__packed uint32_t *)src_buf); | ^~~~~~~~ C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c:251:20: note: each undeclared identifier is reported only once for each function it appears in C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c:251:28: error: expected ')' before 'uint32_t' 251 | *fifo = *((__packed uint32_t *)src_buf); | ~ ^~~~~~~~~ | ) C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c:251:40: error: expected ')' before 'src_buf' 251 | *fifo = *((__packed uint32_t *)src_buf); | ~ ^~~~~~~ | ) C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c: In function 'usb_rxfifo_read': C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c:274:11: error: '__packed' undeclared (first use in this function) 274 | *(__packed uint32_t *)dest_buf = *fifo; | ^~~~~~~~ C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c:274:19: error: expected ')' before 'uint32_t' 274 | *(__packed uint32_t *)dest_buf = *fifo; | ~ ^~~~~~~~~ | ) C:\Users\TaterLi\.platformio\packages\framework-gd32vf103-sdk\GD32VF103_usbfs_driver\Source\drv_usb_core.c:274:31: error: expected ';' before 'dest_buf' 274 | *(__packed uint32_t *)dest_buf = *fifo; | ^~~~~~~~ | ;

Copy GD32VF103_Firmware_Library App code and uncomment firmware_library.py and recompile.

It looks like some definitions(or code) are not compatible,delete all __packed attr,

I found that many macro undefine,such as USB_HTX_NPFIFO_FS_SIZE 

from platform-gd32v.

I think I should check it out later or try to port the incompatible part myself.

from platform-gd32v.

Sorry, I'm lost: why did you close the issue ? Nothing is solved.

from platform-gd32v.

I confirm, i have the same problem, probably the same reason... This ticket is not fixed.

from platform-gd32v.