CORE1106 Help please
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I have a CORE 1106, after I accidentally erased 0x0 to 0x1000 in uboot, the module board is constantly in boot mode(UARTKUARTKUARTK writes in debug uart........), even if you flash it, it will still write like this and will never exit the download mode. Npor is pulled up to 3 m3, SARADC(26) is pulled up to 1v8, I don't understand how to fix this, the module has turned into a brick, help
Hello, if the board keeps printing "RKUART," it indicates that the USB connection is not established correctly. You can check the USB circuit. If you are not using USB for burning, you can also use the serial port burning function of SockToolKit, although the burning speed is quite slow. You can choose to burn the downloadBin, env, idblock, and uboot first, and then use the tftpd64 tool to burn larger capacity partitions.
Yes, I tried to make usb On the board for my projects, but when connecting to a PC there was always a 'Device descriptor request failure', DN and DP were connected correctly, USB_VBUS was also pulled up to 3v3, but still usb did not work. Right now it's just soldered, but not connected to a PC.
USB_VBUS Normal should be 5V, which could be the reason why it is not working properly
USB doesn't want to work even with UVB_VBUSDET being tightened to 5v. I flashed the module via uart, but every time I turn it on, it cycles RKUART...... .The firmware was successful, I used LuckfoxPicoPi_W_EMC, I have 256MB and WIFI. Screen https://cdn.corenexis.com/view/?img=d/ma8/5iHmaT.png
USB does not want to work even with a USB_VBUSDET boost to 5v. I completely desoldered the USB_VBUSDET,USB_DN,and USB_DP pins from the module.I flashed the module via uart, but every time I turn it on, it cycles RKUART...... .The firmware was successful, I used LuckfoxPicoPi_W_EMC, I have 256MB and WIFI. And by the way, where could I find the drawings of the boards for the Luckbox PicoPi, so that I could quickly navigate through the pins necessary for the module to work?. Screen https://cdn.corenexis.com/view/?img=d/ma8/E4qZqG.png
The power supply of USB VBUS should be 5V, and USB VBUSDET is generally pulled up by 1.8V
Luckfox Pico Pi Schematic diagram：https://files.luckfox.com/wiki/Luckfox/ ... o%20Pi.pdf
Luckfox Pico Pi Schematic diagram：https://files.luckfox.com/wiki/Luckfox/ ... o%20Pi.pdf