We are currently testing the OTP programming of MVR5510AMDA0ES. I have entered the test mode, and MAIN_TM_STATUS=0X42, FS_STATE_REG=0XA001. Currently, the emulation is OK, and the OTP values read out are correct. However, once I power down the chip and then read the OTP values again, I find that the OTP is completely empty. How can I write to the OTP and complete the programming when the emulation is OK? Currently, VSUP1/2=12V, VDDOTP=8.5V, POWERON1=5V, POWERON2=3.3V
Note that I am using the I2C protocol to program the OTP, not the original factory tool. Could you please help me see what additional commands need to be executed to actually write to the OTP.
good I'll ask our American colleagues to contact NXP, as they are responsible for the NDA with NXP. If necessary, I'll update you.
I noticed that you seem to be a programmer company. If so, then third parties who want to become our programming partners need to be certified. You can contact NXP's local representative for business negotiations, so I cannot give you the programming program directly.
I've already told you that OTP doesn't support programming on your own board because it contains many confidential rules that are not publicly available. If you want to create your own OTP system, you must first use the board we specified. Under normal circumstances, you won't be able to correctly read the values of the OTP registers. Do you understand?
Thank you for your reply, although it is of no value to me. I need to solve a technical problem, but you gave me a sales proposal. I will discuss it with my boss.
We do not support customers using their own boards for OTP testing. For large-volume orders, you can choose a third party to perform OTP testing. For small-volume orders or if you want to perform OTP testing yourself, I suggest you purchase the following boards:
SBC and PMIC Product OTP Programming Board | NXP Semiconductors
These two combinations offer good value for money.