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2022-08-24ch569w-evt: add usbhs device mode driver (#6330)emuzit
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
2022-07-30WCH CH569W-R0-1v0 evt board bsp port, first version (#6167)emuzit
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