SPRUJ53C April 2024 – February 2025 TMS320F28P550SG , TMS320F28P550SJ , TMS320F28P559SG-Q1 , TMS320F28P559SJ-Q1
Table 4-12 explains the actions each boot ROM performs upon reset for a specific reset cause.
| Reset Source | Boot ROM Action |
|---|---|
| Power-On Reset (POR) | 1. Configure Clock Divider |
| 2. Flash Power Up | |
| 3. Device configuration and trimming | |
| 4. Lock PLL and use PLL if configured to do so | |
| 5. RAM Initialization | |
| 6. Continue default boot flow | |
| External Reset
(XRS) Includes:
|
1. Configure Clock Divider |
| 2. Flash Power Up | |
| 3. Device configuration and trimming | |
| 4. Lock PLL and use PLL if configured to do so | |
| 5. Clear boot stack | |
| 6. Continue default boot flow | |
| Secure Copy Code Reset (SCCRESET) | 1. No change to CLK dividers or RAM |
| 2. Clear boot stack | |
| 3. Continue default boot flow | |
| Simulate CPU Reset (SIMRESET) | 1. No change to CLK dividers or RAM |
| 2. Clear boot stack | |
| 3. Continue default boot flow | |
| Debugger Reset (SYSRS) | 1. No change to CLK dividers or RAM |
| 2. Clear boot stack | |
| 3. Continue default boot flow |