Hi Hideaki, Apologies in delayed responses. I am going to clarify your doubts. [quote userid="10509" url="~/support/processors-group/processors/f/processors-forum/1321893/am6442-ospi-driver-which-supports-training-on-sdr-mode/5172292#5172292"] They want to confirm again with you. Are this errata i2189 Workaround 1, 2 and 3 not needed as long as API OSPI_phyTuneDDR() of a new ospi_phy.c is used ? If the i2189 errata Workar [/quote] So, as of today the errata says the following: In the current/latest SDK ospi_phy_dqs.c file, you will find the API termed as OSPI_phyTuneDDR(), this calls the OSPI_phyFindOTP1(). The find OTP API is the crucial API which takes care of the errata as mentioned and attached in the screenshot. A detailed description of the flow of finding OTP will be extremely helpful for the customers, please share this link with them for the same: https://software-dl.ti.com/mcu-plus-sdk/esd/AM62X/latest/exports/docs/api_guide_am62x/DRIVERS_OSPI_PAGE.html#autotoc_md522 [quote userid="10509" url="~/support/processors-group/processors/f/processors-forum/1321893/am6442-ospi-driver-which-supports-training-on-sdr-mode/5172292#5172292"]They want to confirm again with you. Are this errata i2189 Workaround 1, 2 and 3 not needed as long as API OSPI_phyTuneDDR() of a new ospi_phy.c is used ?[/quote] So to answer your question, yes they can proceed with the mode you have mentioned. Regards, Vaibhav
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