NRF24L01 CSN一直置低读取寄存器直到满足条件

jia525

&nbsp;<span style="text-align:left;widows:2;text-transform:none;background-color:#ffffff;text-indent:0px;letter-spacing:normal;font:14px/23px simsun;white-space:normal;orphans:2;color:#000000;word-spacing:0px;-webkit-text-decorations-in-effect:none;-webkit-text-size-adjust:auto;-webkit-text-stroke-width:0px;" class="Apple-style-span">请问在NRF24L01 CE置高后，将CSN置低读取FIFO_STATUS 寄存器直到读到TX FIFO 为空再将CSN置高是否可行？实际操作时一直TX FIFO一直不为空，发送中断也无法进入，但注释掉后则一切正常<br />
while(reg_val!=0x11){<br />
&nbsp; NRF24L01_CSN = 0;<span class="Apple-converted-space">&nbsp;</span><br />
&nbsp; SPIx_ReadWriteByte(FIFO_STATUS);&nbsp;<span class="Apple-converted-space">&nbsp;</span><br />
<br />
&nbsp; reg_val=SPIx_ReadWriteByte(0XFF);<br />
<br />
&nbsp; NRF24L01_CSN = 1; &nbsp;<span class="Apple-converted-space">&nbsp;</span><br />
}</span>

正点原子

回复【楼主位】jia525:
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<br>既然正常,为什么要改?

jia525

回复【2楼】正点原子:
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<br>需要确认从CE为1到发射一瞬间的时间