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d4f31f73aa
up_disableusartint() saves USART interrupt state from hardware CTL0-CTL3 registers but omits the CTL selector bits (bits 24-27) in the encoded ie value. When up_restoreusartint() later restores interrupts, it uses ie >> 24 to determine which CTL register to write. Without selector bits this evaluates to 0, so no CTL register is updated and all interrupt enables (including RBNEIE) are permanently lost. This causes RX interrupts to never fire after any call to up_putc() (e.g. via syslog), making the serial console unable to receive input. Fix by adding the corresponding CTL selector bit (USART_CFG_CTLx_INT << USART_CFG_SHIFT) whenever a CTL register has active interrupt bits. Signed-off-by: lccosy <1191294205@qq.com> |
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| CMakeLists.txt | ||
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