Part Number: TMS320F280049C
Hi Team,
Here are some issues from the customer may need your help:
DCSM OTP Zone1's configurations: Sector protection, non-default password, enable PSWLock;
DCSM OTP Zone2's configurations: Sector protection, non-default password, disable PSWLock.
The customer did some experiments as below:
1. Put the program to zone1, doesn't execute PMF.
The program tried to read the CSM password of DCSM OTP Zone1, but can not read the actual value.
phenomenon: LED2 did not light up.
uint32_t *p;
p = (uint32_t *)0x000780C8; //Zone1 CSM
if( *p == 0xFFFFFFFE) //Zone1 CSM value
{
GPIO_writePin(DEVICE_GPIO_PIN_LEN2, 0);
}
2. Put the program to zone2, doesn't execute PMF.
The program tried to read the CSM password of DCSM OTP Zone2 and can read the actual value.
Phenomenon: LED2 light up.
uint32_t *p;
p = (uint32_t *)0x000782C8; //Zone2 CSM
if( *p == 0xFFFFFFFE) //Zone2 CSM value
{
GPIO_writePin(DEVICE_GPIO_PIN_LEN2, 0);
}
3. Put the program to zone2, doesn't execute PMF.
The program tried to read the sector configuration of DCSM OTP Zone2, but the actual value can not read.
Phenomenon: LED2 light up.
uint32_t *p;
p = (uint32_t *)0x000782C0; //Zone2 EXEONLYRAM
if( *p == 0x0000003F) //Zone2 EXEONLYRAM value
{
GPIO_writePin(DEVICE_GPIO_PIN_LEN2, 0);
}
How to read the DCSM OTP configuration when the DCSM CSM password is configured?
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Thanks & Regards
