SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
To make sure that read/fetch from uninitialized RAM locations do not cause ECC or parity errors, the RAM_INIT feature is provided for each memory block. Using this feature, any RAM block can be initialized with 0x0 data and the respective ECC/Parity bits accordingly. This can be initiated by setting the INIT bit to 1 for the specific RAM block in the INIT registers. To check the status of RAM initialization, software must poll the INITDONE bit for that RAM block in the INITDONE register to be set. Unless this bit gets set, no access must be made to that RAM memory block.
In the case of GSx memory, only the CPU of the subsystem that is configured as the controller for the particular GSx RAM block can initiate the RAM initialization.