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jsmith678x
Level 4
Level 4
100 sign-ins 25 replies posted First solution authored

Hi,

What is GPIO(General Purpose I/O Ports) high level in voltage? (?? V)

What is the typical voltage value at VAREF (using VADC). (?? V)

 

 

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Alakananda_BG
Moderator
Moderator
Moderator
50 likes received 250 sign-ins 250 replies posted

Hi @jsmith678x ,

The LED pins of the XMC 4400 kit below to the A2 pad as shown in the below figure

Alakananda_BG_0-1648634854951.png

The voltage is dependent on the current drawn as shown in the below table and we guarantee only the minimum voltage.

Alakananda_BG_0-1648710021701.png

 

Regards,

Alakananda

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Alakananda_BG
Moderator
Moderator
Moderator
50 likes received 250 sign-ins 250 replies posted

Hi @jsmith678x ,

Are you asking about the absolute maximum voltage the pin can tolerate or are you asking about the input voltage it can work with ?

>>You can refer to the below attached images for more details

Alakananda_BG_1-1648187502908.png

 

 

Alakananda_BG_3-1648188105415.png

 

Additionally regarding Vref check the below table.

Alakananda_BG_0-1648187033340.png

All this information is available in the device datasheet.

Regards,

Alakananda
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jsmith678x
Level 4
Level 4
100 sign-ins 25 replies posted First solution authored

GPIO: When I make a simple LED blinking circuit and when I connect port pin to scope what will be the maximum voltage? (typically, please write exact numbers instead of tables)

ADC: What will we the typically voltage that can I connect to VAREF? (typically, please write exact numbers instead of tables)

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Alakananda_BG
Moderator
Moderator
Moderator
50 likes received 250 sign-ins 250 replies posted

Hi @jsmith678x ,

GPIO: When I make a simple LED blinking circuit and when I connect port pin to scope what will be the maximum voltage? (typically, please write exact numbers instead of tables)

>>The maximum voltage depends on the LED sinking or sourcing current, from the above table you can find the minimum range of voltage depending upon the LED drive modes.

ADC: What will we the typically voltage that can I connect to VAREF? (typically, please write exact numbers instead of tables)

>>As you see from the above table we have the calculation for the min and max Varef which needs to be calculated depending on your application.

You can find all these information from the below datasheet.

https://www.infineon.com/dgdl/Infineon-XMC4400-DS-v01_03-EN.pdf?fileId=5546d462696dbf120169817958553...

Regards,

Alakananda
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Our application is XMC4400 Platform2Go

https://www.infineon.com/cms/en/product/evaluation-boards/kit_xmc_plt2go_xmc4400/

 

Are there exact values in this case?

 

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Alakananda_BG
Moderator
Moderator
Moderator
50 likes received 250 sign-ins 250 replies posted

Hi @jsmith678x ,

The LED pins of the XMC 4400 kit below to the A2 pad as shown in the below figure

Alakananda_BG_0-1648634854951.png

The voltage is dependent on the current drawn as shown in the below table and we guarantee only the minimum voltage.

Alakananda_BG_0-1648710021701.png

 

Regards,

Alakananda
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