topic Re: problem arise on console in LPC Microcontrollers

problem arise on console

aravindpb5009 — Wed, 19 Jun 2019 06:21:36 GMT

hai

I am using lpc824 mcuxpresso when i try to start my code console doesn't display any thing shows some problem but serial terminal i got the o/p . console appear some error please find my attachment let me know the solution

*** assert failed : ../drivers/fsl_usart.c:363 : diff < ((baudrate_Bps / 100) * 3)

thanks & regards

Aravind P

Re: problem arise on console

ZhangJennie — Wed, 19 Jun 2019 09:05:51 GMT

Hi Aravind palanisamy

Thank you for contacting us.

Is your project from our SDK or your developed by yourself?

if NXP demo code, where is link?

Anyway, please let me know how to reproduce it thus I can check it further.

Have a great day,
Jun Zhang

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Re: problem arise on console

aravindpb5009 — Wed, 19 Jun 2019 11:21:01 GMT

HAI

plz let me know how many ports are available out of 29 pins in LPC824 CONTROLLER

Re: problem arise on console

ZhangJennie — Thu, 20 Jun 2019 08:35:50 GMT

I guess you use LPC824 HVQFN33 package package.

this chip totally has 32pins. Vdd, Vrefp, Vrefn can't be used as GPIO.

Other 29 pins: in debug phase, SWDCLK and SWDIO are used as debug interface. if you need reset feature, PIO0_5/RESET is used as reset. others can all work for GPIO.

Have a great day,
Jun Zhang

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Re: problem arise on console

aravindpb5009 — Fri, 21 Jun 2019 04:11:12 GMT

hai

yes i am using LPC824 HVQFN33 package i have one doubt in this package there is no ports?

but in sdk example codings they mentioned port 1 ,port 2 but in the user manual there is no ports available. plz let me know the clear explanation in this package there is having any ports or not

thank you

Re: problem arise on console

ZhangJennie — Fri, 21 Jun 2019 04:26:07 GMT

Aravind palanisamy

LPC824 HVQFN33 only has one port. it's port0. there are 29 pins distributing to port0, PIO0_0 ~ PIO0_28.

Have a great day,
Jun Zhang

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Re: problem arise on console

aravindpb5009 — Fri, 21 Jun 2019 04:27:39 GMT

thanks you

plz let me know what is Hysteresis

Re: problem arise on console

ZhangJennie — Fri, 21 Jun 2019 04:30:02 GMT

welcome.

Have a great day,
Jun Zhang

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Re: problem arise on console

aravindpb5009 — Fri, 21 Jun 2019 05:07:34 GMT

plz let me know what is Hysteresis

Re: problem arise on console

ZhangJennie — Fri, 21 Jun 2019 08:41:45 GMT

GPIO feature hysteresis is to prevent spurious state changes.

Virtually all GPIO inputs use a principle called hysteresis to prevent spurious changes in state when an input value changes. “Hysteresis is the dependence of a system on not only its current environment but also on its past” (read more).

BTW, if you have new question. please open a new thread. Thanks.

Re: problem arise on console

aravindpb5009 — Sat, 22 Jun 2019 05:28:40 GMT

which debugger is better for LPC824 IN MCUXPRESSO ide currently i am using only link server debugger only its sufficient or not plz let me know which debugger is better to buy for our mcuxpresso ide

Re: problem arise on console

ZhangJennie — Sun, 23 Jun 2019 13:27:09 GMT

This is a new issue about MCUXpresso IDE, please create a new thread to https://community.nxp.com/community/mcuxpresso/mcuxpresso-ide

Thanks.