* [ch32v307] update Chinese readme

* add English readme

* [bsp][ch32v307]添加了 pwm 驱动

CH32V307 添加can驱动。
CAN1和CAN2均可以使用，而且调整好波特率

* [bsp][sconscript] 整理统一sconscript格式

* update

* update

* 修改部分菜单

* change again

* 修改RT_USING为BSP_USING

* Update SConscript

* Update SConscript
Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>

添加了 ch32v307 看门狗驱动，已在 ch32v307评估板验证；
修改了 rt-thread\bsp\wch\risc-v\ch32v307v-r1\board 目录下的 Kconfig 文件；
修改了 rt-thread\bsp\wch\risc-v\Libraries\ch32_drivers 目录下的 SConscript 文件；
添加了 rt-thread\bsp\wch\risc-v\Libraries\ch32_drivers 目录下的 drv_iwdt.c 文件；

添加了ch32v307的adc驱动，已在ch32v307评估班上对adc1ch5进行了验证，并修改了kconfig以及scons脚本，可以成功编译以及使用

* add Kconfig file "USART2~USART8"

* Update drv_usart.h

CH32V307的串口1外设是对接在APB2桥上，其他串口均对接在APB1桥上

已完全测试，并发现一个问题，已修正。

* 修改Kconfig的不足

* update gpio driver

* formatting code

ch569w-evt: add usbhs device mode driver

* usbd driver tested with cdc_vcom, internal loopback
  (can't run both MSH & usbd due to 16KB RAM limitation)
* reduce usrstack & main thread stack size for usbd test
* ch56x_uart.c : iron out UART0_PIN_ALT assignment

* add ch32v307 lib

* fix scons

attach https://github.com/RT-Thread/rt-thread/pull/5451

add PWM driver, output checked with logic analyzer
spi_xfer() bug fix for cs_pin and message looping
uart pin_mode init moved to uart driver

* ch569w-evt : add spi master driver, SPI0 tested

* Update bsp/wch/risc-v/ch569w-evt/board/Kconfig

* Update bsp/wch/risc-v/ch569w-evt/board/Kconfig
Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>

WCH CH569W-R0-1v0 evt board bsp port, first version

dev/test under Ubuntu 20.04
toolchain from MounRiver_Studio_Community_Linux_x64_V120

tested drivers : SysTick, gpio, gpio interrupt, uart1 (RX interrupt, TX polling)

libcpu/risc-v/SConscript :
group includes rtconfig.CPU only if folder exists

libcpu/risc-v/common/cpuport.c/rt_hw_context_switch_interrupt() :
make it RT_WEAK for customization

将路径更新为IAR最新版本的路径

因为不确定后续IAR是否会像Keil一样内含有不同的编译工具链
此外，将判断条件改为列表方式，这样更方便后续增加其他可能的IAR编译链

* [gcc][armcc][armclang] rtconfig.CROSS_TOOL->rtconfig.PLATFORM

feat: move MRS demo source to bsp and libraries folder

feat: update Sconscript

feat: modify SConstruct in the bsp

feat: use the rtconfig.py of gd32vf103v-eval bsp to modify

feat: use the MRS's rtconfig.h temoporarily

feat: update Kconfig files

feat: use the MRS's .ld and rename as link.lds

feat: add ch32v1 porting folder

perf: remove board/system_ch32v10x.c

fix: define SOC_ARM_SERIES_CH32V103 in rtconfig.h

fix: add some neccessary macros in rtconfig.h

perf: use the menuconfig to generate rtconfig.h

feat: add readme.md

fix: correct the bad encode in main.c

fix: include board.h in main.c

perf: check and update README.md

perf: remove ch32f10x_port_cn.md

feat: ignore the standard libraries's CI checking

feat: add sdk_dist.py

fix: correct some style errors again

perf: simply the board/kconfig

fix: format ch32v103r-evt

fix: format drvs and libcpu

* [update] add fal component.

* [update] format code.

* [update] change PKG_USING_FAL to RT_USING_FAL

* [update] format code.

* [update] fal

* [update] delete FAL_SW_VERSION

* add ch579m bsp

Author:    Tuber <tuber@xyza.cn>
Date:      Wed Feb 16 07:20:23 2022 +0000

* fix uart reg value error and format code

* change file encode to utf-8