Hi,
I want to change BOOTMODE to a serial downloader.
Do I need to change the logic of the BOOT MODE pin?
If BOOTMODE [1: 0] = 2b10 and the internal memory is empty, do you boot from USB or UART?
Pull up and pull down BOOT_CFG1[0]~BOOT_CFG4[7],
I have set it, but isn't it necessary for the serial downloader?
Does the USB download mode listed in the data sheet below include a UART?
i.MX 6ULL Applications Processor Reference Manual, Rev. 1, 11/2017 P331
8.12 SD/MMC manufacture mode
Figure 8-27. SD/MMC manufacture boot flow
best regard
Hi ban45
for boot resistors selection one can look at Table 6. Boot mode input recommendations
Hardware Development Guide for the i.MX 6ULL Applications Processor
>Does the USB download mode listed in the data sheet below include a UART?
yes as described in Figure 8-2. Serial Downloader boot flow
i.MX 6ULL Applications Processors for Consumer Products
Best regards
igor