LQFP Pin Mapping Issue


The AI review is correct: this is a terminal-to-pad mapping defect, not a footprint geometry issue.
  • Logical pin 48 AGND is incorrectly associated with physical pad 13.
  • Logical pin 13 NC is associated with physical pad 48.
  • Other pins may also be shifted/mismapped, so the entire 1–48 mapping must be regenerated, not merely pins 13 and 48.
  • Do not use this part on an active PCB until corrected; it can connect ground pins to 3V3 or other unrelated copper.
I filed a part-quality report with the Flux engineering team. No safe local pad override was applied because geometry overrides cannot repair terminal-to-pad identity mapping.
No, pin number is 48 but terminal order is 13
terminal order property is about terminal position on the schematic symbol and have nothing to do with footprint

image.png

You’re correct—Terminal Order only controls schematic-symbol ordering. I also identified the error in my previous coordinate comparison: the imported KiCad footprint’s Y axis is inverted in Flux’s layout coordinates, so I will re-check the mapping using that transform and correct the report.
You’re correct. My previous conclusion was wrong.
  • Pin Number 48 is the electrical identifier used to map AGND to footprint pad 48.
  • Terminal Order 13 only controls ordering/placement on the schematic symbol.
  • Flux’s layout coordinates invert the KiCad footprint’s Y axis. Once that transform is accounted for, AGND pin 48 aligns with physical pad 48, not pad 13.
  • The displayed data does not confirm an AGND-to-3V3 mapping defect.
Therefore, no footprint mapping change is required based on this warning. The original AI review appears to have confused terminal order or coordinate orientation with pad numbering.

AVDD
EXRES1
XI/CLKIN
NC
AGND
~INT
AVDD
DNC
AGND
RXN
RSVD
RSVD
TXN
NC
ACTLED
AGND
RSVD
AVDD
AGND
RSVD
VBG
NC
PMODE1
AGND
~SCS
MOSI
RXP
GND
~RST
RSVD
DUPLED
AVDD
TOCAP
1V2O
AVDD
VDD
LINKLED
AVDD
RSVD
NC
PMODE0
TXP
PMODE2
SPDLED
AGND
SCLK
XO
MISO
Name
Pin #
Type
Current
Max Current
Part Type
Pin Orientation
Section
TXN
1
Output
0.042A
0.042A
Terminal
Right
Communication
TXP
2
Output
0.042A
0.042A
Terminal
Right
Communication
AGND
3
Ground
0.132A
0.132A
Terminal
Bottom
GND
AVDD
4
Ground
0.132A
0.132A
Terminal
Top
PWR
RXN
5
Input
0.042A
0.042A
Terminal
Right
Communication
RXP
6
Input
0.042A
0.042A
Terminal
Right
Communication
DNC
7
Not Connected
0.042A
0.042A
Terminal
Right
RSVD/NC
AVDD
8
Ground
0.132A
0.132A
Terminal
Top
PWR
AGND
9
Ground
0.132A
0.132A
Terminal
Bottom
GND
EXRES1
10
Bi-Directional
0.042A
0.042A
Terminal
Left
Analog
AVDD
11
Ground
0.132A
0.132A
Terminal
Top
PWR
NC
12
Not Connected
0.042A
0.042A
Terminal
Right
RSVD/NC
NC
13
Not Connected
0.042A
0.042A
Terminal
Right
RSVD/NC
AGND
14
Ground
0.132A
0.132A
Terminal
Bottom
GND
AVDD
15
Ground
0.132A
0.132A
Terminal
Top
PWR
AGND
16
Ground
0.132A
0.132A
Terminal
Bottom
GND
AVDD
17
Ground
0.132A
0.132A
Terminal
Top
PWR
VBG
18
Output
0.042A
0.042A
Terminal
Left
Analog
AGND
19
Ground
0.132A
0.132A
Terminal
Bottom
GND
TOCAP
20
Output
0.042A
0.042A
Terminal
Right
Analog
AVDD
21
Ground
0.132A
0.132A
Terminal
Top
PWR
1V2O
22
Power Out
0.042A
0.042A
Terminal
Right
Analog
RSVD
23
Not Connected
0.042A
0.042A
Terminal
Left
RSVD/NC

W5500