WhyCan Forum(哇酷开发者社区)

下载程序过程中也会有信息输出的 你看看硬件连接对不？

我看了下你的sys_config
把
[uart_para]
uart_debug_port = 0
uart_debug_tx   = port:PE1<5>
uart_debug_rx   = port:PE0<5>
改成
[uart_para]
uart_debug_port = 0
uart_debug_tx   = port:PE1<5>
;uart_debug_rx   = port:PE0<5>
把
[uart_para0]
uart_used       = 1
uart_port       = 0
uart_type       = 2
uart_debug_tx   = port:PE1<5>
uart_debug_rx   = port:PE0<5>
改成
[uart_para0]
;uart_used       = 1
;uart_port       = 0
;uart_type       = 2
;uart_debug_tx   = port:PE1<5>
;uart_debug_rx   = port:PE0<5>

关于中断这个当初我也是被坑了好久，后来才发现这个其所在sdcc的手册内是有描诉的，看他的意思除了能放在main对应的那个c文件内，在main的头文件包含也是可以的，不过后面那个场景我没试过。
SDCC allows interrupt service routines to be coded in C, with some extended keywords.
void timer_isr (void) __interrupt (1) __using (1)
{
...
}
The optional number following the __interrupt keyword is the interrupt number this routine will service. When
present, the compiler will insert a call to this routine in the interrupt vector table for the interrupt number specified.
If you have multiple source files in your project, interrupt service routines can be present in any of them, but a
prototype of the isr MUST be present or included in the file that contains the function main. The optional (8051
specific) keyword __using can be used to tell the compiler to use the specified register bank when generating code
for this function.