TMS320F28377D: TMS320F28377D DCSM PSWDLOCK

Hi, PSWDLOCK only impacts the visibility of the password value from debugger or code. It should not impact the code execution. Please check if you are reading the password in your code and unlocking the device using that value.

Regards,
Vivek Singh

Hi Vivek

Thanks for you cleaning,pls help tell me put it where can correct unlock secuity device for below CSM unlock code?

volatile long int *CSM = (volatile long int *)0x5F010; //CSM register file
volatile long int *CSMPWL = (volatile long int *)0x78028; //CSM Password location (assuming
default Zone sel block)
volatile int tmp;
int I;
// Read the 128-bits of the CSM password locations (PWL)
//
for (I=0;I<4; I++) tmp = *CSMPWL++;
// If the password locations (CSMPWL) are all = ones (0xFFFF),
// then the zone will now be unsecure. If the password
// is not all ones (0xFFFF), then the code below is required
// to unsecure the CSM.
// Write the 128-bit password to the CSMKEY registers
// If this password matches that stored in the
// CSLPWL then the CSM will become unsecure. If it does not
// match, then the zone will remain secure.
// An example password of:
// 0x11112222333344445555666677778888 is used.
*CSM++ = 0x22221111; // Register Z1_CSMKEY0 at 0x5F010
*CSM++ = 0x44443333; // Register Z1_CSMKEY1 at 0x5F012
*CSM++ = 0x66665555; // Register Z1_CSMKEY2 at 0x5F014
*CSM++ = 0x88887777; // Register Z1_CSMKEY3 at 0x5F016