Assign UART3 to the GNSS module, remove this UART3...
by eric.kuzmenko 7 years 8 months
Assign UART3 to the GNSS module, remove this UART3 from the WWAN M.2 and assign GPIO5_IO03 to DPR
modifications to library symbol and footprint of e...
by Christian Schilmoeller 7 years 8 months
modifications to library symbol and footprint of ethernet magjack
Begin GNSS schematic using MAX-M8 module
by Eric Kuzmenko 7 years 8 months
Begin GNSS schematic using MAX-M8 module

Since UART2 isn't brought out then will either need to use UART1 (debug) with jumpers or the module's I2C interface.

Resolve merge conflict after pulling recent commit, now can no longer use SSH (since Gogs is getting abandoned?).
added footprints for switches and phone jack
by Christian Schilmoeller 7 years 8 months
added footprints for switches and phone jack
new wiring of DPDT switches for HKS purposes
Add camera/CSI circuit, include second switch that...
by Eric Kuzmenko 7 years 8 months
Add camera/CSI circuit, include second switch that is part of the audio+camera DPDT for killing both simultaneously, level shifters used for camera's I/O that requires it, footprints for a 1.8V LDO which may be used by DVDD will be included

External DVDD (1.8V LDO) needs to be tested if it's needed (datasheet says an internal DVDD can be used, as is the case with Boundary Devices' OV5640 camera).
Add bypass caps to logic gates used with the W_DIS...
by Eric Kuzmenko 7 years 8 months
Add bypass caps to logic gates used with the W_DISABLE and the 9-axis IMU's INT pins
Nearly complete the LCD/DSI and cap-touch schemati...
by Eric Kuzmenko 7 years 8 months
Nearly complete the LCD/DSI and cap-touch schematic, add notes from the display's datasheet regarding the various pin assignments, add component property information for the 39-pin DSI clamshell connector

Still need to determine what this requested "low power state signal" requirement is for the display.
Add LCD display's 22.4V (@40mA) LED backlight driv...
by Eric Kuzmenko 7 years 8 months
Add LCD display's 22.4V (@40mA) LED backlight driver/boost converter IC circuit (PAM2841), selected the rectifying/schottky diode (SS14), and set the OVP to 37.6V as found on the IC's EVB
Modify the boot config/boot mode pins and switch s...
by Eric Kuzmenko 7 years 8 months
Modify the boot config/boot mode pins and switch such that only eMMC and USB (serial downloader) are boot options due to the uSD being attached to the USB<->SD bridge chip, add OV5460 notes about using the internal DVDD 1.5V regulator
Make changes to the USB hub + SD bridge circuit an...
by Eric Kuzmenko 7 years 8 months
Make changes to the USB hub + SD bridge circuit and uSD sheet based on Prolific's feedback after asking questions
Report a bug