I am using i.MX6DL. I am using UART1 port for GPS connection. I face a problem as cited, when i connect GPS to this port and start our device i.mx6 do not boot. if i connect the gps after i.mx booted everything works fine. ı checked configuration pins, i think they are correct, internal boot and boot from eMMC is set well. How can set i.mx6 in order not to look UART1 port?
Hi serkan
uart1 is not used by i.MX6DL boot ROM, reason may be leakage from uart to
unpowered processor which violates power up sequence described in sect.4.2.1
Power-Up Sequence i.MX6SDL Datasheet:
NOTE
Ensure that there is no back voltage (leakage) from any supply on the board
http://www.nxp.com/docs/en/data-sheet/IMX6SDLCEC.pdf
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------