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Author SHA1 Message Date
Vlastimil Slinták
2faee2114d Added solder pads (spring contacts) for GND and SPEAKER 2025-07-23 12:36:08 +03:00
Vlastimil Slinták
d203b444b7 Assigned footprint and set position on PCB for the LEDs 2025-07-23 12:36:08 +03:00
Vlastimil Slinták
4a04453e0d Assigned USB and RF netclasses 
Two new netclasses are:
* USB for differential USB pair
* RF for any trace with 50 Ohm impedance
 2025-07-22 14:34:27 +03:00
Wojciech Kaczmarski
8ab5ceccd6 re-arranged the schematic at "root" 2025-07-21 10:39:14 +03:00
Wojciech Kaczmarski
b62ca16bca update 
- brought some order to page 1
- routed on/off signals
-added SoM pin #10
- rendered PDF
 2025-07-20 21:03:05 +03:00
OE3ANC
ce628d9ade Added VOL_ADC, ON/OFF_SW, fixed typo 2025-07-19 21:24:29 +02:00
Vlastimil Slinták
04f8da908a Assigned footprint and layout position of the battery connector 2025-07-19 13:00:08 +03:00
Vlastimil Slinták
318fd589a5 Added footprint and 3D model for the BT-003 battery connector 2025-07-19 13:00:08 +03:00
Vlastimil Slinták
db21280711 Added modified footprint for the PJ-204 audio 2.5 mm jack 
This alternative footprint does not have three mounting mechanical
holes. This will make the jack body 0.5 mm higher, making it better
aligned with the center of the 3.5 mm jack.
 2025-07-17 21:25:07 +02:00
Wojciech Kaczmarski
357ef87f21 minor power on/off circuit tweaks 2025-07-17 20:10:45 +02:00
Wojciech Kaczmarski
f2454bd04e tweaked the power-on circuit 
- supplied the XNOR gate with 5V instead of 3.3V
- added a MOSFET to drive the 3.3V DC/DC converter's EN pin
- removed a pull-up resistor at the ON/OFF line
 2025-07-17 18:58:02 +02:00
Vlastimil Slinták
dd51cbecfe Assigned footprint and layout position of the 2.5 mm jack 2025-07-16 13:34:56 +02:00
Vlastimil Slinták
6308590bad Added footprint and 3D model for the PJ-204 audio 2.5 mm jack 2025-07-16 13:34:56 +02:00
Wojciech Kaczmarski
d399765440
Update README.md 2025-07-16 12:58:55 +02:00
Wojciech Kaczmarski
65883bae14 updates 
- updated the 5V line (diode connected sources - USB and DC/DC)
- proposed a power on-off circuit based on a XNOR gate
- reannotated the schematic
- updated the PDF
 2025-07-15 17:57:29 +02:00
Vlastimil Slinták
b78ae3aa55 Fixed constrains and board stackup based on PCBWay recommendations 2025-07-15 17:15:47 +02:00
Vlastimil Slinták
a1a40c5cc9 Fixed pinout for the SoM 
* Added missing pin definitions in MCM-iMX93 symbol
* Added information about the keyboard wiring
* Assigned all signals to pins in the SoM
 2025-07-15 17:15:47 +02:00
Vlastimil Slinták
862a3383a0 Added footprint and positions for the side keys (BTN2/PTT) 
* Pad footprint on the original PCB (Retevis C62) is 1.7x2.2 mm.
* Side keys are mounted on a separate PCB soldered via 5 pads on
  the main PCB.
 2025-07-15 17:15:47 +02:00
Vlastimil Slinták
0b4d63befe Added keyboard connector to the layout 
* Changed J7 connector from "01x16" to "01x16 with MP" variant
* Positioned J7 on the layout, bottom side
 2025-07-15 17:15:47 +02:00
Vlastimil Slinták
97ef9cf510 Added footprint and 3D model for the FPC connector 
* JUSHUO AFC01-S16FCA-00
* LCSC C262665
 2025-07-15 17:15:47 +02:00
OE3ANC
86210d62cf Added PWM Pins 2025-07-15 12:18:20 +02:00
Vlastimil Slinták
38cf5989bc Removed .kicad_prl from repository, it is in ignored files 2025-07-14 16:50:00 +02:00
Vlastimil Slinták
0fc47c2351 Added gitattributes to force Unix-style EOL 2025-07-14 16:50:00 +02:00
Vlastimil Slinták
77d46b0506 Changed all EOLs from Windows (CRLF) to Unix style (LF) 
Unix style end-of-lines is standard in KiCAD world:
https://klc.kicad.org/general/g1/g1.7.html
 2025-07-14 16:50:00 +02:00
Vlastimil Slinták
54589de294 Basic PCB outline and connector positions 
This is just a concept of the PCB layout. Work-in-progress
 2025-07-14 12:31:58 +02:00
Vlastimil Slinták
92b031343d Added 3D model of the SRN6028 inductor series 2025-07-14 12:31:58 +02:00
Vlastimil Slinták
f760677d9b Updated MCM-iMX93 symbol in the schematics 2025-07-14 12:31:58 +02:00
Vlastimil Slinták
4e058db846 Fixed MCM-iMX93 footprint per manufacturer design 
* Added G1-G24 pads to the symbol, assigned GND signal
* Changed footprint per manufacturers specs
* Renamed the footprint from QFN-140 to MCM-iMX93

https://www.compulab.com/products/computer-on-modules/mcm-imx93-nxp-i-mx-93-som-smd-system-on-module/#devres
 2025-07-14 12:31:58 +02:00
Vlastimil Slinták
b2f3a72dfc Added mechanical mounting holes 2025-07-14 12:31:58 +02:00
Vlastimil Slinták
ea5a6baa7c Added 3D models for USB-C and QFN-140 footprints 2025-07-14 12:31:58 +02:00
Vlastimil Slinták
92ac59d905 Changed PCB stackup from 2 to 4 layers 2025-07-14 12:31:58 +02:00
Wojciech Kaczmarski
18195bee4c date, pdf plot 2025-07-13 22:15:21 +02:00
Vlastimil Slinták
c1b588ecb3 Fixed minor issues with the audio WM8960 
* Added optional 0R resistor between DAC and ADC LRC.
* Grounded all mic inputs and removed testpoints.
 2025-07-13 22:13:11 +02:00
Vlastimil Slinták
f4f206ae14 Added second step-down converter for 3.3 V 
* Second TPS562203-based converter for 3.3 V rail.
* Changed inductors for a thinner variant 2.8 mm instead of 4.8 mm
* Recommended inductors are SRN6028-4R7M or FNR6028S4R7MT
* Removed 3.3V LDO output from the SoM
 2025-07-13 22:13:02 +02:00
Vlastimil Slinták
bef8fc1700 Updated ignored files, removed fp-info-cache from the repository 2025-07-13 10:12:57 +02:00
Vlastimil Slinták
06974cd3e5 Updated GND symbol from the library 2025-07-13 10:12:57 +02:00
Vlastimil Slinták
ab37003d16 Fixed wrong pin names JPn->JDn in the WM8960 symbol 2025-07-13 10:12:57 +02:00
Vlastimil Slinták
581e4a612f Added the audio input/output using WM8960 
* Replaced TAC5111 with WM8960.
* Connected internal speaker and headphone output.
* Added JACK_DETECK signal
* Connected 2.5mm jack to the WM8960.
* Added SAI3_MCLK to the SoM symbol.
 2025-07-13 10:12:57 +02:00
Wojciech Kaczmarski
742ca433ad
Update README.md 2025-07-12 12:15:45 +02:00
Wojciech Kaczmarski
30f3c0809e
Merge pull request #4 from OE3ANC/feature/som-pin-list/oe3anc 
Pinlist
 2025-07-12 11:58:03 +02:00
OE3ANC
0524f91c81 Added pinout for the som 2025-07-12 11:47:52 +02:00
OE3ANC
3fdd380cd4 Added pinout for the som 2025-07-12 11:44:24 +02:00
Wojciech Kaczmarski
1e683bbdbc
Merge pull request #3 from slintak/wm8960_sym 
Added a new project library with the WM8960 audio codec
 2025-07-11 11:19:09 +02:00
Vlastimil Slinták
5b3792d818 Added a new project library with the WM8960 audio codec 2025-07-10 22:12:59 +02:00
Wojciech Kaczmarski
f491912939 added Retevis C62 mainboard's photos for reference 2025-07-10 18:02:33 +02:00
Wojciech Kaczmarski
34868eeb58 added missing mic path 2025-07-10 15:49:08 +02:00
Wojciech Kaczmarski
4f3b832950 PDF plot 2025-07-10 09:53:14 +02:00
Wojciech Kaczmarski
01178adb08
Merge pull request #2 from slintak/power_supply_2S_batt 
Add 5V DC/DC Converter (2S battery)
 2025-07-10 09:45:12 +02:00
Vlastimil Slinták
2665a6d910 Added 5V DC/DC converter for 2S battery input 
* Maximum expected power consumption: 3.2 W
* Maximum output current from the DC/DC converter: 0.65 A + 20%
* L3 inductor is missing footprint, will be added later
 2025-07-09 22:12:30 +02:00
Vlastimil Slinták
69a66d7890 Updated credits 2025-07-09 21:09:12 +02:00