diff options
| author | sakumisu <[email protected]> | 2021-12-12 21:49:21 +0800 |
|---|---|---|
| committer | sakumisu <[email protected]> | 2021-12-13 15:11:16 +0800 |
| commit | e0cc3e7f5a327ee08cfb86fe8261d7af73f56f61 (patch) | |
| tree | 38e3b35447dd4bd874d167c3f2b75e016a64cff8 /docs | |
| parent | 0dd1c3b3fb19b2cddb66d3c3d2f5e461afcf9102 (diff) | |
update rt-thread readme
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/rt-thread.md | 23 | ||||
| -rw-r--r-- | docs/rt-thread_zh.md | 30 |
2 files changed, 45 insertions, 8 deletions
diff --git a/docs/rt-thread.md b/docs/rt-thread.md index 4854c522..6689e047 100644 --- a/docs/rt-thread.md +++ b/docs/rt-thread.md @@ -10,7 +10,7 @@ To use usb stack package, you need to select it in the RT-Thread package manager --- USB Stack: tiny and portable USB stack for embedded system with USB IP USB STACK Options ----> - [ ] Enable usb high speed mode + USB Speed (FS) ---> [*] Enable usb device mode [*] Enable usb cdc acm device [ ] Enable usb hid device @@ -28,7 +28,7 @@ To use usb stack package, you need to select it in the RT-Thread package manager ### In STM32 Please note that stm32 series have two usb ip. For usb ip, like stm32f0、stm32f1、stm32f3, for usb otg ip(as we know it is from **synopsys**),like stm32f4、stm32f7 and so on. -Currently,if you usb usb device on mcu with usb ip, recommend you to use dcd porting named **usb_dc_nohal.c**,otherwise use **usb_dc_hal.c**.In the future,**usb_dc_hal.c** will be droped. +~~Currently,if you usb usb device on mcu with usb ip, recommend you to use dcd porting named **usb_dc_nohal.c**,otherwise use **usb_dc_hal.c**.In the future,**usb_dc_hal.c** will be droped~~. #### Use USB Device @@ -43,7 +43,21 @@ Currently,if you usb usb device on mcu with usb ip, recommend you to use dcd por - Generate code. - Copy **SystemClock_Config** into **board.c**. -- Copy **MX_USB_OTG_FS_PCD_Init** or **MX_USB_OTG_HS_PCD_Init** into **main.c** if you use **usb_dc_hal.c**.Also, USB Irq from **it.c** needs the same. +- ~~Copy **MX_USB_OTG_FS_PCD_Init** or **MX_USB_OTG_HS_PCD_Init** into **main.c** if you use **usb_dc_hal.c**.Also, USB Irq from **it.c** needs the same.~~ +- Implement **usb_dc_low_level_init** and copy codes in from ``HAL_PCD_MspInit``. + +``` +void usb_dc_low_level_init(void) +{ + /* Peripheral clock enable */ + __HAL_RCC_USB_CLK_ENABLE(); + /* USB interrupt Init */ + HAL_NVIC_SetPriority(USB_LP_CAN1_RX0_IRQn, 0, 0); + HAL_NVIC_EnableIRQ(USB_LP_CAN1_RX0_IRQn); + +} +``` + - Implement **printf** or modify with **rt_kprintf** in **usb_utils.h**, usb stack needs. - Now we can call some functions provided by **usb_stack**.Your should register descriptors、interfaces and endpoint callback firstly, and then call `usb_dc_init`. Example is as follows: @@ -52,10 +66,11 @@ int main(void) { extern void cdc_init(void); cdc_init(); - extern void usb_dc_init(void); usb_dc_init(); while (1) { + uint8_t data_buffer[10] = { 0x31, 0x32, 0x33, 0x34, 0x35, 0x31, 0x32, 0x33, 0x34, 0x35 }; + usbd_ep_write(0x81, data_buffer, 10, NULL); rt_thread_mdelay(500); } } diff --git a/docs/rt-thread_zh.md b/docs/rt-thread_zh.md index 56b3f34a..612a4ab4 100644 --- a/docs/rt-thread_zh.md +++ b/docs/rt-thread_zh.md @@ -10,7 +10,7 @@ --- USB Stack: tiny and portable USB stack for embedded system with USB IP USB STACK Options ----> - [ ] Enable usb high speed mode + USB Speed (FS) ---> [*] Enable usb device mode [*] Enable usb cdc acm device [ ] Enable usb hid device @@ -27,7 +27,7 @@ ### 在 STM32 平台 -STM32 系列单片机有两种 USB IP,分别是 USB IP 和 USB OTG IP。其中 USB IP,例如 STM32F0、STM32F1、STM32F3等等,USB OTG IP(我们都知道用的是 **synopsys** 公司的)的有 STM32F4、STM32F7、STM32H7等等。当前如果你需要使用 USB Device 功能,porting 接口提供了两种,一种是不带 hal 层的 **usb_dc_nohal.c**,一种是带 hal 层的 **usb_dc_hal.c**,如果你使用的是 USB IP系列,推荐用前者,否则用后者,需要注意的是后者在后面会删除,不使用 hal 版本。 +STM32 系列单片机有两种 USB IP,分别是 USB IP 和 USB OTG IP。其中 USB IP,例如 STM32F0、STM32F1、STM32F3等等,USB OTG IP(我们都知道用的是 **synopsys** 公司的)的有 STM32F4、STM32F7、STM32H7等等。当前如果你需要使用 USB Device 功能,porting 接口提供了两种,~~一种是不带 hal 层的 **usb_dc_nohal.c**,一种是带 hal 层的 **usb_dc_hal.c**,如果你使用的是 USB IP系列,推荐用前者,否则用后者,需要注意的是后者在后面会删除,不使用 hal 版本~~ 一种是适配 USB IP的 **fsdev**,另一种是适配 USB OTG IP 的 **synopsys**。 #### 使用 USB Device 功能 @@ -42,22 +42,44 @@ STM32 系列单片机有两种 USB IP,分别是 USB IP 和 USB OTG IP。其中 U - 点击 **Generate code**。 - 复制 **SystemClock_Config** 函数内容到 **board.c** 中。 -- 如果你使用的是 hal 版本,需要复制 **MX_USB_OTG_FS_PCD_Init** 或者 **MX_USB_OTG_HS_PCD_Init** 到你的应用程序中,比如 **main.c**,并且还需要从 **it.c** 中复制中断函数。 +- ~~如果你使用的是 hal 版本,需要复制 **MX_USB_OTG_FS_PCD_Init** 或者 **MX_USB_OTG_HS_PCD_Init** 到你的应用程序中,比如 **main.c**,并且还需要从 **it.c** 中复制中断函数。~~ +- 实现 ``usb_dc_low_level_init``,并将 ``HAL_PCD_MspInit`` 里面内容复制进来。 + +``` +void usb_dc_low_level_init(void) +{ + /* Peripheral clock enable */ + __HAL_RCC_USB_CLK_ENABLE(); + /* USB interrupt Init */ + HAL_NVIC_SetPriority(USB_LP_CAN1_RX0_IRQn, 0, 0); + HAL_NVIC_EnableIRQ(USB_LP_CAN1_RX0_IRQn); + +} +``` + - 实现 **printf** 函数或者将 **usb_utils.h** 中的 **printf** 改成 **rt_kprintf**,并添加 `#include <rtthread.h>` - 现在我们可以调用 USB Stack 中的函数来注册描述符、接口、端点中断,并调用 `usb_dc_init`,示例如下: ``` +#include <rtthread.h> +#include <rtdevice.h> +#include <board.h> +#include <stdio.h> + +extern void usb_dc_init(void); int main(void) { extern void cdc_init(void); cdc_init(); - extern void usb_dc_init(void); usb_dc_init(); while (1) { + uint8_t data_buffer[10] = { 0x31, 0x32, 0x33, 0x34, 0x35, 0x31, 0x32, 0x33, 0x34, 0x35 }; + usbd_ep_write(0x81, data_buffer, 10, NULL); rt_thread_mdelay(500); } } + ``` - 关于如何注册 class 类可以参考 [stm32 class examples](https://github.com/sakumisu/usb_stack/tree/master/demo/stm32/stm32f103c8t6/example)。 |
