huhui b0dbe83643 set clk of apb1 to sysclk/4(21M), this can use 100K I2C clk 5 lat temu
..
Include 8439f64fee 修改工程芯片位GD32F330C8 5 lat temu
Source b0dbe83643 set clk of apb1 to sysclk/4(21M), this can use 100K I2C clk 5 lat temu