WhyCan Forum(哇酷开发者社区)

The file "u-boot-sunxi-with-spl.bin" includes 2 parts SPL and uboot. Can anyone show me the address of SPL and uboot when writing to spi nand (SPL is probably at address 0x00)?

You can build an openwrt yourself. If you don't build LUCI, the image size will be only about 6MB

In the datasheet of RTL8363NB page 15, Table 6, pin 47 (RM1M_CLK) can be configured as clock input or clock output (Reference 50MHz Clock)

Why do you want high power module? ESP32/ESP8266 is not designed for that purpose.

Please check the pin configuration of UART3, according to the schematic of Mango-pi mq dual, UART3 uses pins PB6 and PB7