Part Number: AM5728
Other Parts Discussed in Thread: AM5728
Tool/software: Linux
I'm trying to flash linux and u-boot into eMMC on my customboard, based on sitara am5728, via USB.
I've got only two boot modes: eMMC and USB.
I've read this guide about dfu usb flashing.
In the dmesg log usb device enumeration breaks after loading u-boot-spl.img via usbboot (therefore I guess, that 3 sec and 1min timeouts, described in TRM, were interrupted) and following message appears:
As I understand, this means, that SPL has been correctly downloaded. But when I'm trying to check dfu device list, it's empty:
UART3 also presents on my board, but I can use it only via AB3 and Y1 balls. May be exists something way to multiplexing UART3 on this pins in the SPL code? Then I will be can to load linux and u-boot images via uart. I tries to modify mux_data.h, located in the "board/ti/am57xx/" directory. But indications on my osciloscope points, that it doesn't produce any effect.
Can anybody help me to solve this problem?
