- Lightweight and fast
- Event-driven process workflow
- Completely separated USB hardware driver and usb core
- Easy to use.
All requirements can be downloaded into a directory specified in environment variable CMSIS using
make cmsis command.
| MCU Series | Features | Driver | File |
|---|---|---|---|
| STM32L0x2 STM32L0x3 STM32F070 STM32F0x2 STM32F0x8 | Doublebuffered[2] 8[1] endpoints BC1.2 |
usbd_devfs | usbd_stm32l052_devfs.c |
| usbd_devfs_asm | usbd_stm32l052_devfs_asm.S | ||
| STM32L4x2 STM32L4x3 STM32G4 series | Doublebuffered[2] 8[1] endpoints BC1.2 |
usbd_devfs | usbd_stm32l433_devfs.c |
| usbd_devfs_asm | usbd_stm32l052_devfs_asm.S | ||
| STM32L1xx | Doublebuffered[2] 8[1] endpoints |
usbd_devfs | usbd_stm32l100_devfs.c |
| usbd_devfs_asm | usbd_stm32l100_devfs_asm.S | ||
| STM32F102 STM32F103 STM32F302 STM32F303 STM32F373 | Doublebuffered[2] External DP pullup 8[1] endpoints |
usbd_devfs | usbd_stm32f103_devfs.c |
| usbd_devfs_asm | usbd_stm32f103_devfs_asm.S | ||
| STM32WB55 | Doublebuffered[2] External DP pullup 8[1] endpoints |
usbd_devfs | usbd_stm32wb55_devfs.c |
| STM32L4x5 STM32L4x6 | Doublebuffered 6 endpoints BC1.2 VBUS detection |
usbd_otgfs | usbd_stm32l476_otgfs.c |
| STM32F401 STM32F411 | Doublebuffered 4 endpoints VBUS detection SOF output |
usbd_otgfs | usbd_stm32f429_otgfs.c |
| STM32F4x5 STM32F4x7 STM32F4x9 | Doublebuffered 4 endpoints VBUS detection SOF output |
usbd_otgfs | usbd_stm32f429_otgfs.c |
| Doublebuffered 6 endpoints VBUS detection SOF output |
usbd_otghs | usbd_stm32f429_otghs.c | |
| STM32F105 STM32F107 | Doublebuffered 4 endpoints VBUS detection SOF output |
usbd_otgfs | usbd_stm32f105_otgfs.c |
| STM32F4x6 STM32F7 | Doublebuffered 6 endpoints VBUS detection SOF output |
usbd_otgfs | usbd_stm32f446_otgfs.c |
| Doublebuffered 9 endpoints VBUS detection SOF output |
usbd_otghs | usbd_stm32f446_otghs.c | |
| STM32H743 | Doublebuffered 6 endpoints VBUS detection SOF output |
usbd_otgfs | usbd_stm32h743_otgfs.c |
- Single physical endpoint can be used to implement
- one bi-directional/single-buffer logical endpoint (CONTROL)
- one uni-directional/double-buffer logical endpoint (BULK OR ISOCHRONOUS)
- two uni-directional/single-buffer logical endpoints (BULK OR INTERRUPT)
-
At this moment BULK IN endpoint can use both buffers, but it is not real doublebuffered.
-
Tested with STM32L052K8, STM32L100RC, STM32L476RG, STM32F072C8, STM32F103C8, STM32F103CB, STM32F303CC, STM32F303RE, STM32F429ZI, STM32F105RBT6, STM32F107VCT6, STM32L433CCT6, STM32F070CBT6, STM32G431RB, STM32F411CEUx, STM32F405RG, STM32F446RE, STM32F373CC, STM32L053R8, GD32F103C8T6, STM32F745VE, STM32F401CE, STM32H743. See hardware.md for details.
- USB HID based on Device Class Definition for Human Interface Devices (HID) Version 1.11
- USB DFU based on USB Device Firmware Upgrade Specification, Revision 1.1
- USB CDC based on Class definitions for Communication Devices 1.2
- USB TMC based on USB Device Test and Measurement Class Specification, Revision 1.0
- to build library module
make module MODULE=path/module.a DEFINES="mcu specified defines" CFLAGS="cpu specified compiler flags"
- to build demo
make bluepill program
make stm32l052x8
- to get a help
make help
| Variable | Default Value | Means |
|---|---|---|
| CMSIS | ./CMSIS | path to CMSIS root folder |
| CMSISDEV | $(CMSIS)/Device | path to CMSIS device folder |
| CMSISCORE |
|
path to CMSIS core headers |
| MCU | stm32l100xc | MCU selection for demo project |
| CFLAGS | -mcpu=cortex-m3 -mfloat-abi=soft | MCU specified compiler flags |
| DEFINES | STM32L1 STM32L100xC | MCU specified defines |
| STPROG_CLI | ~/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/STM32_Programmer_CLI | Path to the ST Cube Programmer CLI |
| OPTFLAGS | -Os | Code optimization flags |