PN7462 GPIO Output Read Issue Using phhalPcr_GetGpioVal()

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PN7462 GPIO Output Read Issue Using phhalPcr_GetGpioVal()

428 次查看
uday_gowda
Contributor II

Hi Team,

I am using PN7462 and trying to read LED GPIO pins configured as output using phhalPcr_GetGpioVal().

uint8_t val = 0; phhalPcr_GetGpioVal(LED_RED, &val);

But the API always returns 0 even when the LED output is HIGH.

Is phhalPcr_GetGpioVal() only reading input pad state?

Is there any other API to read output GPIO pin state/output latch value on PN7462?

Thanks in advance.

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407 次查看
KaiLi
NXP TechSupport
NXP TechSupport

Hello @uday_gowda 

Please refer to tht example => PN7642_MCUXpresso_SDK_02-15-006_PUB\boards\pnev7642fama\driver_examples\gpt, there is an answer what you want.

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357 次查看
uday_gowda
Contributor II

Thanks for the reference.

I am using PN7462AU with SDK NxpNfcRdLib_PN7462_v07.14.00_Pub.

I checked the suggested example area, but there also I could see only GPIO write operations for LEDs and not GPIO output read operations.

Could you please confirm if there is any API available to read output GPIO state on PN7462?

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284 次查看
KaiLi
NXP TechSupport
NXP TechSupport

Hello @uday_gowda 

Maybe you can try:

KaiLi_0-1778655256333.png

 

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%3CLINGO-SUB%20id%3D%22lingo-sub-2362684%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%E4%BD%BF%E7%94%A8%20phhalPcr_GetGpioVal()%20%E8%AF%BB%E5%8F%96%20PN7462%20GPIO%20%E8%BE%93%E5%87%BA%E7%9A%84%E9%97%AE%E9%A2%98%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2362684%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E5%97%A8%EF%BC%8C%E5%9B%A2%E9%98%9F%E3%80%81%3C%2FP%3E%3CP%3E%E6%88%91%E6%AD%A3%E5%9C%A8%E4%BD%BF%E7%94%A8%20PN7462%EF%BC%8C%E5%B9%B6%E5%B0%9D%E8%AF%95%E4%BD%BF%E7%94%A8%20phhalPcr_GetGpioVal()%E8%AF%BB%E5%8F%96%E9%85%8D%E7%BD%AE%E4%B8%BA%E8%BE%93%E5%87%BA%E7%9A%84%20LED%20GPIO%20%E5%BC%95%E8%84%9A%E3%80%82%3C%2FP%3E%3CP%3Euint8_t%20val%20%3D%200%3B%20phhalPcr_GetGpioVal(LED_RED%2C%26amp%3Bval)%EF%BC%9B%3C%2FP%3E%3CP%3E%E4%BD%86%E6%98%AF%EF%BC%8C%E5%8D%B3%E4%BD%BF%20LED%20%E8%BE%93%E5%87%BA%E4%B8%BA%E9%AB%98%E7%94%B5%E5%B9%B3%EF%BC%8CAPI%20%E4%B9%9F%E6%80%BB%E6%98%AF%E8%BF%94%E5%9B%9E%200%E3%80%82%3C%2FP%3E%3CP%3EphhalPcr_GetGpioVal()%20%E6%98%AF%E5%90%A6%E5%8F%AA%E8%83%BD%E8%AF%BB%E5%8F%96%E8%BE%93%E5%85%A5%E7%84%8A%E7%9B%98%E7%8A%B6%E6%80%81%EF%BC%9F%3C%2FP%3E%3CP%3E%E6%98%AF%E5%90%A6%E6%9C%89%E5%85%B6%E4%BB%96%20API%20%E5%8F%AF%E4%BB%A5%E8%AF%BB%E5%8F%96%20PN7462%20%E7%9A%84%E8%BE%93%E5%87%BA%20GPIO%20%E5%BC%95%E8%84%9A%E7%8A%B6%E6%80%81%2F%E8%BE%93%E5%87%BA%E9%94%81%E5%AD%98%E5%80%BC%EF%BC%9F%3C%2FP%3E%3CP%3E%E5%85%88%E8%A1%8C%E8%87%B4%E8%B0%A2%E3%80%82%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-2362684%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CLINGO-LABEL%3E%E5%BC%80%E5%8F%91%E6%9D%BF%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2362725%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20PN7462%20GPIO%20Output%20Read%20Issue%20Using%20phhalPcr_GetGpioVal()%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2362725%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E4%BD%A0%E5%A5%BD%3CA%20href%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F261175%22%20target%3D%22_blank%22%3E%40uday_gowda%3C%2FA%3E%3C%2FP%3E%0A%3CP%3E%E8%AF%B7%E5%8F%82%E8%80%83%E9%82%A3%E4%B8%AA%E4%BE%8B%E5%AD%90%20%3D%20%26gt%3B%20pn7642_mcuxpresso_sdk_02-15-006_pub%5C%20boards%5C%20pnev7642fama%5C%20driver_examples%5C%20gpt%EF%BC%8C%E6%9C%89%E4%BD%A0%E6%83%B3%E8%A6%81%E7%9A%84%E7%AD%94%E6%A1%88%E3%80%82%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2363103%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20PN7462%20GPIO%20Output%20Read%20Issue%20Using%20phhalPcr_GetGpioVal()%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2363103%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%20class%3D%22%22%3E%3CSPAN%3E%E6%84%9F%E8%B0%A2%E6%82%A8%E7%9A%84%E5%8F%82%E8%80%83%E3%80%82%3C%2FSPAN%3E%3C%2FP%3E%3CP%20class%3D%22%22%3E%3CSPAN%3E%E6%88%91%E4%BD%BF%E7%94%A8%E7%9A%84%E6%98%AF%20PN7462AU%20%E5%92%8C%20SDK%20NxpNfcRdLib_PN7462_v07.14.00_Pub%3C%2FSPAN%3E%3CSPAN%3E.%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%3CSPAN%3E%E6%88%91%E6%9F%A5%E7%9C%8B%E4%BA%86%E5%BB%BA%E8%AE%AE%E7%9A%84%E7%A4%BA%E4%BE%8B%E5%8C%BA%E5%9F%9F%EF%BC%8C%E4%BD%86%E5%9C%A8%E9%82%A3%E9%87%8C%E6%88%91%E4%B9%9F%E5%8F%AA%E8%83%BD%E7%9C%8B%E5%88%B0%20LED%20%E7%9A%84%20GPIO%20%E5%86%99%E6%93%8D%E4%BD%9C%EF%BC%8C%E8%80%8C%E7%9C%8B%E4%B8%8D%E5%88%B0%20GPIO%20%E8%BE%93%E5%87%BA%E7%9A%84%E8%AF%BB%E6%93%8D%E4%BD%9C%E3%80%82%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%3CSPAN%3E%E8%AF%B7%E7%A1%AE%E8%AE%A4%E6%98%AF%E5%90%A6%E6%9C%89%E4%BB%BB%E4%BD%95%20API%20%E5%8F%AF%E7%94%A8%E4%BA%8E%E8%AF%BB%E5%8F%96%20PN7462%20%E7%9A%84%E8%BE%93%E5%87%BA%20GPIO%20%E7%8A%B6%E6%80%81%EF%BC%9F%3C%2FSPAN%3E%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2364567%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20PN7462%20GPIO%20Output%20Read%20Issue%20Using%20phhalPcr_GetGpioVal()%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2364567%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E4%BD%A0%E5%A5%BD%3CA%20href%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F261175%22%20target%3D%22_blank%22%3E%40uday_gowda%3C%2FA%3E%3C%2FP%3E%0A%3CP%3E%E4%B9%9F%E8%AE%B8%E4%BD%A0%E5%8F%AF%E4%BB%A5%E8%AF%95%E8%AF%95%EF%BC%9A%3C%2FP%3E%0A%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%20lia-image-align-inline%22%20image-alt%3D%22KaiLi_0-1778655256333.png%22%20style%3D%22width%3A%20400px%3B%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22KaiLi_0-1778655256333.png%22%20style%3D%22width%3A%20400px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F385244i48E0664EB98457A3%2Fimage-size%2Fmedium%3Fv%3Dv2%26amp%3Bpx%3D400%22%20role%3D%22button%22%20title%3D%22KaiLi_0-1778655256333.png%22%20alt%3D%22KaiLi_0-1778655256333.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3C%2FP%3E%0A%3CBR%20%2F%3E%3C%2FLINGO-BODY%3E