PortA输出无法正常工作

你好，弗兰克，
亲切地，将IOA寄存器设置为在引脚上输出的期望值。
IOA寄存器的SFR地址是0x80，而不是0xB0。请参阅EZUSB（R）技术参考手册。
HTTP://www. CyPress .COM/FIL/12646/下载
最好的问候，
斯里纳斯



     以下为原文
  Hello Frank,
 
Kindly, set the IOA register with the desired values to be output on the pins.
The SFR address for IOA register is 0x80 and not 0xB0. Please refer to the EZUSB(R) Technical Reference Manual.
http://www.cypress.com/file/126446/download
 
Best regards,
Srinath S

嗨，Srinath，
对不起，0xB0是我的坏，但它只是一个打印在这里的职位。在固件中，我已经有0x80，但没有效果。
问题似乎是要把PIN作为输出来工作。
无论我做什么，它都保持在高Z。
我现在已经通过10K电阻连接到VCC，并通过10K电阻将GND连接到GND。
因此，如果引脚与输入引脚一样高Z，则两个LED都点亮一点，因为没有电流流入或流出引脚。
如果我通过一个1K电阻器向外部施加0V或3.3V，LED中的一个会变暗，而另一个则被点亮更多，正如预期的那样，当引脚处于0V或3.3V时。
这样，我可以很容易地看出，如果针是0, 1或高Z。
正如我之前说过的，无论我做什么，PIN总是高Z的。
我特别检查了PA3，因为PA3输出使能不被任何其他的PoTa引脚替换，但是即使在PA3上，I也只有高Z。
数据传输在EP6的作品就像一个魅力和它停止工作如果我配置6作为终点，所以我确信固件的第一部分是执行然后OEA = 0a应该得到执行，太。
还有别的防止门主要从输出？



     以下为原文
  Hi Srinath,
 
sorry, the 0xB0 was my bad, but it was a typo only in the post here. In the firmware I already had 0x80 but with no effect.
 
Also the problem seems to be to get the pin to work as an output.
No matter what I do it stays in high-Z.
 
I have now connected an LED to VCC via a 10k resistor and an LED to GND via a 10k resistor.
So if the pin is high-Z like with input pins, both LEDs are lit up just a bit, because no current flows into or out of the pin.
If I apply 0v or 3.3v to the pin externally via a 1k resistor one of the LEDs goes dark and the other one is lit up more, just as expected when the pin is at 0v or 3.3v.
This way I can easily see if the pin is 0, 1 or high-Z.
 
As I said before, the pin is always high-Z, no matter what I do.
 
I checked especially with PA3, because PA3 output enable is not overridden by any alternate function like some other PortA pins, but even on PA3 I only get high-Z.
 
The data transfer over the EP6 works like a charm and it ceases to work if I configure EP6 as an Out-Endpoint, so I am sure that the first part of the firmware is executed and then the OEA=0A should get executed, too.
 
Can anything else prevent the PortA GPIOs from being outputs?

好的，不管是什么原因，OEA＝0x0a都被翻译成间接寻址，这与SFR不起作用。
我手动改变它直接寻址，它现在正在工作。



     以下为原文
  Ok, for whatever reason OEA=0x0a had been translated to indirect addressing, which does not work with the SFR.
 
I changed it manually to direct addressing and it is working now.