Write sequence to the TC399 DFLASH1 with HSM enabled

[BT10]

I want to write/store some data(about 256 Bytes) in Dflash1 like persistent store like EEPROM. How many write numbers will be allowed if HSM is enabled? I will be writing quite often. Does HSM play a role in writing to Dflash1? I am not planning to make Dflash1 as HSM-Exclusive.

[Yuva · Accepted solution]

Hello,

I think you can make PROCONHSMCFG.HSMDX as 0 and do operation from Tricore host. Host Command Sequence Interpreter is separate from HSM Command Sequence Interpreter and performed operations independently.  So, it is possible to do operations on DFlash1 without restriction, you can refer to 6.5.4.2.2 in the UM part 1 for additional details. 

Thanks.

[BT10]

@Yuva Thank you for the reply. I was not sure on which CSI to follow if HSM is enabled to program the DFlash1. Thank you for pointing me to the UM details.