I have build my own board for the TX2 module using this guide JetsonTX2_OEM_Product_DesignGuide but on my board it will not start, not even a trace of log from /var/log/syslog but it boots fine on the NVIDIA Developer Board.
When the TX2 boot on my board it is very slow it takes about 10 seconds for the CR2 (power) LED and the CR1 LED to light up as opposed to the NVIDIA Developer board where it is instant (<0.5seconds). What can be the root cause for this? I have found that the UART1_TX pin is dangling on my board, it is measuring 0V, not 1.8V as shown in Fig 41 (below) Jetson TX2 Strap Connections, in JetsonTX2_OEM_Product_DesignGuide. The power VDD_5V0_IO_SYS, VDD_3V3_SYS and VDD_1V8 on my board are normal.