This is a STM8 SPI protocol and I2C protocol application examples, very detailed notes, can be used to point reading pen or touch screen chip communication

read_pen_via_spi_i2c_apart_add_0309_eeprom(stable_version in 2012-9-4)\read_pen_via_spi_liu\Libraries\STM8S_StdPeriph_Driver\inc\stm8s.h
......................................................................\....................\.........\......................\...\stm8s_adc1.h
......................................................................\....................\.........\......................\...\stm8s_adc2.h
......................................................................\....................\.........\......................\...\stm8s_awu.h
......................................................................\....................\.........\......................\...\stm8s_beep.h
......................................................................\....................\.........\......................\...\stm8s_can.h
......................................................................\....................\.........\......................\...\stm8s_clk.h
......................................................................\....................\.........\......................\...\stm8s_exti.h
......................................................................\....................\.........\......................\...\stm8s_flash.h
......................................................................\....................\.........\......................\...\stm8s_gpio.h
......................................................................\....................\.........\......................\...\stm8s_i2c.h
......................................................................\....................\.........\......................\...\stm8s_itc.h
......................................................................\....................\.........\......................\...\stm8s_iwdg.h
......................................................................\....................\.........\......................\...\stm8s_rst.h
......................................................................\....................\.........\......................\...\stm8s_spi.h
......................................................................\....................\.........\......................\...\stm8s_tim1.h
......................................................................\....................\.........\......................\...\stm8s_tim2.h
......................................................................\....................\.........\......................\...\stm8s_tim3.h
......................................................................\....................\.........\......................\...\stm8s_tim4.h
......................................................................\....................\.........\......................\...\stm8s_tim5.h
......................................................................\....................\.........\......................\...\stm8s_tim6.h
......................................................................\....................\.........\......................\...\stm8s_type.h
......................................................................\....................\.........\......................\...\stm8s_uart1.h
......................................................................\....................\.........\......................\...\stm8s_uart2.h
......................................................................\....................\.........\......................\...\stm8s_uart3.h
......................................................................\....................\.........\......................\...\stm8s_wwdg.h
......................................................................\....................\.........\......................\src\stm8s_adc1.c
......................................................................\....................\.........\......................\...\stm8s_adc2.c
......................................................................\....................\.........\......................

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