problem arise on console

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problem arise on console

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Contributor III

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

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NXP TechSupport
NXP TechSupport

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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Contributor III

HAI 

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

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NXP TechSupport
NXP TechSupport

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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Contributor III

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

 

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NXP TechSupport
NXP TechSupport

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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Contributor III

thanks you 

plz let me know what is Hysteresis

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NXP TechSupport
NXP TechSupport

welcome.


Have a great day,
Jun Zhang

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Contributor III

plz let me know what is Hysteresis

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NXP TechSupport
NXP TechSupport

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.

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Contributor III

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

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NXP TechSupport
NXP TechSupport

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

Thanks.

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