topic i.MX6ULL NAND boot question in i.MX Processors

i.MX6ULL NAND boot question

m_c — Fri, 21 Feb 2020 01:28:00 GMT

1. In the Table 8-10 of i.MX6ULL reference manual <http://nxp.com/doc/imx6ullrm>, BOOT_CFG2[4:3] for boot search count. Are 00, 01 both for two boot search count?

2. In the Table 5-7 of i.MX6ULL reference manual <http://nxp.com/doc/imx6ullrm>, there are some reserved pins for NAND boot, like BOOT_CFG2[0]. What is the recommended status for these reserved pins when booting? NC, pull-up, pull-down?

Re: i.MX6ULL NAND boot question

AldoG — Wed, 26 Feb 2020 17:15:36 GMT

Hello,

1.- Yes, you're a correct

2.- You may place a pull-down resistor to this reserved pins, if planning to use fuses please do not burn these, as the behavior may be unpredictable.

Hope this helps,

Best regards,

Aldo.