Part Number: AM4377
Hi,
We designed our own AM4377 board. The power solution is descrete power solution. With boot mode 11001, we can see 0x43 output from UART0, which means trying to boot from UART0. We inserted a MMC in MMC0 slot. This MMC card is ok on starter kit and IDK. The 0x43 printing is stopped, which means booting from MMC card, but there is no ANY output from UART0 of our board. We don't see major hardware difference between our board and TI starter kit and IDK, except descrete power and no external RTC. what's blocking the UART0 output or initialization process? attached is our processor core board.(Please visit the site to view this file)
Thanks
Peter