C6748 的PRUSS单元有没有中断入口?我看了官网的汇编例子都是以查询方式的,如下:
POLL:
// Poll for receipt of interrupt on host 0
QBBS FUNC, eventStatus, 30
JMP POLL
如我做外部中断时,这样的机制跟我“直接查询IO口的电平” 响应速度有什么区别?
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C6748 的PRUSS单元有没有中断入口?我看了官网的汇编例子都是以查询方式的,如下:
POLL:
// Poll for receipt of interrupt on host 0
QBBS FUNC, eventStatus, 30
JMP POLL
如我做外部中断时,这样的机制跟我“直接查询IO口的电平” 响应速度有什么区别?