GND Net not showing up in Netlist

kvj · June 20, 2020, 4:34pm

Hi Guys,

I’m a little new to KiCAD and PCB Layout, and I’m doing my first project. After creating the schematic and generating the Netlist, I was verifying the nets and I noticed that there is no Net for GND in the Netlist. Instead the GND connections to the components are showing up in the +3.3V Net in the Netlist.

Is there something wrong with my schematic where GND and +3.3V have been shorted?

Below is the text from my Netlist

(nets
(net (code 1) (name “Net-(U2-Pad3)”)
(node (ref U2) (pin 3)))
(net (code 2) (name “Net-(U2-Pad2)”)
(node (ref U2) (pin 2)))
(net (code 3) (name “Net-(U2-Pad53)”)
(node (ref U2) (pin 53)))
(net (code 4) (name “Net-(U2-Pad52)”)
(node (ref U2) (pin 52)))
(net (code 5) (name “Net-(U2-Pad51)”)
(node (ref U2) (pin 51)))
(net (code 6) (name “Net-(U2-Pad9)”)
(node (ref U2) (pin 9)))
(net (code 7) (name “Net-(U2-Pad8)”)
(node (ref U2) (pin 8)))
(net (code 8) (name “Net-(U2-Pad62)”)
(node (ref U2) (pin 62)))
(net (code 9) (name “Net-(U2-Pad61)”)
(node (ref U2) (pin 61)))
(net (code 10) (name “Net-(U2-Pad57)”)
(node (ref U2) (pin 57)))
(net (code 11) (name “Net-(U2-Pad56)”)
(node (ref U2) (pin 56)))
(net (code 12) (name “Net-(U2-Pad4)”)
(node (ref U2) (pin 4)))
(net (code 13) (name “Net-(U2-Pad36)”)
(node (ref U2) (pin 36)))
(net (code 14) (name “Net-(U2-Pad35)”)
(node (ref U2) (pin 35)))
(net (code 15) (name “Net-(U2-Pad34)”)
(node (ref U2) (pin 34)))
(net (code 16) (name “Net-(U2-Pad30)”)
(node (ref U2) (pin 30)))
(net (code 17) (name “Net-(U2-Pad29)”)
(node (ref U2) (pin 29)))
(net (code 18) (name “Net-(U2-Pad27)”)
(node (ref U2) (pin 27)))
(net (code 19) (name “Net-(U2-Pad26)”)
(node (ref U2) (pin 26)))
(net (code 20) (name “Net-(U2-Pad41)”)
(node (ref U2) (pin 41)))
(net (code 21) (name “Net-(C16-Pad1)”)
(node (ref C16) (pin 1))
(node (ref U2) (pin 47)))
(net (code 22) (name “Net-(U2-Pad12)”)
(node (ref U2) (pin 12)))
(net (code 23) (name “Net-(U2-Pad63)”)
(node (ref U2) (pin 63)))
(net (code 24) (name “Net-(U2-Pad18)”)
(node (ref U2) (pin 18)))
(net (code 25) (name “Net-(U2-Pad54)”)
(node (ref U2) (pin 54)))
(net (code 26) (name “Net-(U2-Pad40)”)
(node (ref U2) (pin 40)))
(net (code 27) (name “Net-(U2-Pad39)”)
(node (ref U2) (pin 39)))
(net (code 28) (name “Net-(U2-Pad38)”)
(node (ref U2) (pin 38)))
(net (code 29) (name “Net-(U2-Pad37)”)
(node (ref U2) (pin 37)))
(net (code 30) (name “Net-(U2-Pad25)”)
(node (ref U2) (pin 25)))
(net (code 31) (name “Net-(U2-Pad24)”)
(node (ref U2) (pin 24)))
(net (code 32) (name “Net-(U2-Pad11)”)
(node (ref U2) (pin 11)))
(net (code 33) (name “Net-(U2-Pad10)”)
(node (ref U2) (pin 10)))
(net (code 34) (name VCC)
(node (ref D1) (pin 2))
(node (ref J4) (pin 1)))
(net (code 35) (name USART1_TX)
(node (ref J1) (pin 1))
(node (ref U2) (pin 42)))
(net (code 36) (name I2C1_SDA)
(node (ref J2) (pin 2))
(node (ref R5) (pin 2))
(node (ref U2) (pin 59)))
(net (code 37) (name I2C1_SCL)
(node (ref J2) (pin 1))
(node (ref U2) (pin 58))
(node (ref R4) (pin 2)))
(net (code 38) (name USART1_RX)
(node (ref J1) (pin 2))
(node (ref U2) (pin 43)))
(net (code 39) (name SPI1_MISO)
(node (ref U2) (pin 22))
(node (ref J5) (pin 3)))
(net (code 40) (name SPI1_MOSI)
(node (ref J5) (pin 4))
(node (ref U2) (pin 23)))
(net (code 41) (name SPI1_5CK)
(node (ref J5) (pin 2))
(node (ref U2) (pin 21)))
(net (code 42) (name SPI1_CS)
(node (ref U2) (pin 20))
(node (ref J5) (pin 1)))
(net (code 43) (name “Net-(C19-Pad1)”)
(node (ref R6) (pin 2))
(node (ref C19) (pin 1))
(node (ref HSE1) (pin 3)))
(net (code 44) (name BOOT1)
(node (ref U2) (pin 28))
(node (ref R3) (pin 1)))
(net (code 45) (name BOOT0)
(node (ref R2) (pin 1))
(node (ref U2) (pin 60)))
(net (code 46) (name HSE_IN)
(node (ref C18) (pin 1))
(node (ref U2) (pin 5))
(node (ref HSE1) (pin 1)))
(net (code 47) (name HSE_OUT)
(node (ref U2) (pin 6))
(node (ref R6) (pin 1)))
(net (code 48) (name “Net-(J6-Pad7)”)
(node (ref J6) (pin 7)))
(net (code 49) (name “Net-(J6-Pad8)”)
(node (ref J6) (pin 8)))
(net (code 50) (name SWDIO)
(node (ref U2) (pin 46))
(node (ref J6) (pin 2)))
(net (code 51) (name “Net-(C1-Pad1)”)
(node (ref U1) (pin 3))
(node (ref C1) (pin 1))
(node (ref FB1) (pin 2)))
(net (code 52) (name “Net-(F1-Pad1)”)
(node (ref FB1) (pin 1))
(node (ref F1) (pin 1)))
(net (code 53) (name “Net-(D1-Pad1)”)
(node (ref D1) (pin 1))
(node (ref F1) (pin 2)))
(net (code 54) (name “Net-(C15-Pad1)”)
(node (ref C15) (pin 1))
(node (ref U2) (pin 31)))
(net (code 55) (name SWCLK)
(node (ref J6) (pin 4))
(node (ref U2) (pin 49)))
(net (code 56) (name +3.3VA)
(node (ref FB2) (pin 2))
(node (ref U2) (pin 13))
(node (ref C14) (pin 1))
(node (ref C13) (pin 1)))
(net (code 57) (name SWO)
(node (ref J6) (pin 6))
(node (ref U2) (pin 55)))
(net (code 58) (name “Net-(D3-Pad2)”)
(node (ref D3) (pin 2))
(node (ref U2) (pin 33)))
(net (code 59) (name “Net-(D3-Pad1)”)
(node (ref R7) (pin 1))
(node (ref D3) (pin 1)))
(net (code 60) (name “Net-(U2-Pad17)”)
(node (ref U2) (pin 17)))
(net (code 61) (name “Net-(U2-Pad16)”)
(node (ref U2) (pin 16)))
(net (code 62) (name “Net-(U2-Pad50)”)
(node (ref U2) (pin 50)))
(net (code 63) (name “Net-(U2-Pad45)”)
(node (ref U2) (pin 45)))
(net (code 64) (name “Net-(U2-Pad44)”)
(node (ref U2) (pin 44)))
(net (code 65) (name “Net-(U2-Pad15)”)
(node (ref U2) (pin 15)))
(net (code 66) (name “Net-(U2-Pad14)”)
(node (ref U2) (pin 14)))
(net (code 67) (name NRST)
(node (ref J6) (pin 10))
(node (ref U2) (pin 7)))
(net (code 68) (name +3V3)
(node (ref C13) (pin 2))
(node (ref U1) (pin 2))
(node (ref C14) (pin 2))
(node (ref C15) (pin 2))
(node (ref R1) (pin 2))
(node (ref D2) (pin 2))
(node (ref U1) (pin 1))
(node (ref C11) (pin 2))
(node (ref C10) (pin 1))
(node (ref C10) (pin 2))
(node (ref C9) (pin 1))
(node (ref R7) (pin 2))
(node (ref C9) (pin 2))
(node (ref C8) (pin 1))
(node (ref C16) (pin 2))
(node (ref FB2) (pin 1))
(node (ref HSE1) (pin 4))
(node (ref HSE1) (pin 2))
(node (ref C11) (pin 1))
(node (ref R4) (pin 1))
(node (ref R5) (pin 1))
(node (ref U2) (pin 19))
(node (ref U2) (pin 1))
(node (ref C8) (pin 2))
(node (ref U2) (pin 32))
(node (ref U2) (pin 48))
(node (ref U2) (pin 64))
(node (ref H1) (pin 1))
(node (ref H2) (pin 1))
(node (ref H3) (pin 1))
(node (ref H4) (pin 1))
(node (ref J6) (pin 5))
(node (ref J6) (pin 9))
(node (ref J6) (pin 3))
(node (ref C19) (pin 2))
(node (ref C18) (pin 2))
(node (ref R2) (pin 2))
(node (ref C1) (pin 2))
(node (ref C2) (pin 1))
(node (ref C2) (pin 2))
(node (ref C12) (pin 2))
(node (ref C12) (pin 1))
(node (ref R3) (pin 2))
(node (ref J6) (pin 1))
(node (ref C6) (pin 2))
(node (ref J3) (pin 1))
(node (ref J3) (pin 2))
(node (ref C7) (pin 1))
(node (ref C7) (pin 2))
(node (ref C6) (pin 1))
(node (ref J4) (pin 2))
(node (ref C5) (pin 1))
(node (ref C5) (pin 2))
(node (ref C4) (pin 1))
(node (ref C4) (pin 2))
(node (ref C3) (pin 1))
(node (ref C3) (pin 2)))
(net (code 69) (name “Net-(D2-Pad1)”)
(node (ref R1) (pin 1))
(node (ref D2) (pin 1)))))

Also I’m not sure how I can upload my Schematic for you to see guys. I’ve tried to upload a screenshot of a portion. Hopefully this works.

.

Rene_Poschl · June 20, 2020, 4:42pm

Make sure there is no direct connection between 3v3 and GND (use the highlight tool of eeschema to check that. Also run ERC and make sure both GND and 3v3 nets are driven by a power output to see a short.)

hermit · June 20, 2020, 4:42pm

Generally it just takes a little activity to ‘level up’. Read a few posts in a few threads to so you don’t look like a drive by spammer. That allows you to upload. In this case, an admin has done this for you. Upload away.

paulvdh · June 20, 2020, 5:14pm

You’ve shorted +3V3 and GND through C5:

kvj · June 20, 2020, 6:04pm

Thanks very much! This solved the Issue completely.

Appreciate it.

kvj · June 20, 2020, 6:05pm

Thanks a lot for your help guys!

This is really a great community.

system · September 18, 2020, 6:05pm

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