1. ../Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_hal_irda.c(482): error:  #20: identifier "UART_WORDLENGTH_9B" is undefined
   
2.       if ((hirda->Init.WordLength == UART_WORDLENGTH_9B) && (hirda->Init.Parity == UART_PARITY_NONE))
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3. ../Drivers/STM32L0xx_HAL_Driver/Src/stm32l0xx_hal_irda.c(482): error:  #20: identifier "UART_PARITY_NONE" is undefined
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4.       if ((hirda->Init.WordLength == UART_WORDLENGTH_9B) && (hirda->Init.Parity == UART_PARITY_NONE))

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7 I; G8 |& z3 o: m/ p直接输出的工程
" U5 g2 J% n* q" Z! b$ Q编译出错：UART_WORDLENGTH_9B，UART_PARITY_NONE未定义
在stm32l0xx_hal_irda.h里找到定义

IRDA

_WORDLENGTH_9B，

IRDA_PARITY_NONE。替换错误定义后编译成功。
还请修正此Bug。
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