SPRACN1 May 2019 TMS320F2800132 , TMS320F2800133 , TMS320F2800135 , TMS320F2800137 , TMS320F2800152-Q1 , TMS320F2800153-Q1 , TMS320F2800154-Q1 , TMS320F2800155 , TMS320F2800155-Q1 , TMS320F2800156-Q1 , TMS320F2800157 , TMS320F2800157-Q1 , TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1
The default boot definition fixes the value (boot mode number) to be driven (on boot select pins) for particular boot mode as given in Table 1.
| Boot Modes | Boot Mode Number |
|---|---|
| PARALLEL IO | 0 |
| SCI BOOT | 1 |
| CAN Boot | 2 |
| Flash Boot | 3 |
Table 2 shows a custom boot table.
| Boot Modes | Boot Mode Number |
|---|---|
| Flash Boot | 0 |
| SCI BOOT | 1 |
This is achieved by configuring BOOT_DEF_LOW (0xFFFF0103) and BOOT_DEF_HIGH (0xFFFFFFFF) user OTP locations as shown in Table 3.
| Boot Mode Number | BOOTDEF Name | Value |
|---|---|---|
| 0 | BOOT_DEF0 | 03 (Flash boot, refer Table 1) |
| 1 | BOOT_DEF1 | 01 (SCI boot, refer Table 1) |
| 2 | BOOT_DEF2 | 0xFF |
| 3 | BOOT_DEF3 | 0xFF |
| 4 | BOOT_DEF4 | 0xFF |
| 5 | BOOT_DEF5 | 0xFF |
| 6 | BOOT_DEF6 | 0xFF |
| 7 | BOOT_DEF7 | 0xFF |
The configurations derived above can be summarized as:
These values have to be written to user OTP locations as described in the next section.
NOTE
Care should be taken while defining the above configurations as the OTP locations can be written only once.
For detailed information on the above configurations, see the Device Boot Modes chapter in the TMS320F28004x Piccolo Microcontrollers Technical Reference Manual.