SPRABV4H October 2021 – April 2024 SM320F28335-EP , SM320F28335-HT , TMS320F280023-Q1 , TMS320F280025-Q1 , TMS320F280025C-Q1 , TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1 , TMS320F2802-Q1 , TMS320F28020 , TMS320F280200 , TMS320F28021 , TMS320F28022 , TMS320F28022-Q1 , TMS320F280220 , TMS320F28023 , TMS320F28023-Q1 , TMS320F280230 , TMS320F28026 , TMS320F28026-Q1 , TMS320F28026F , TMS320F28027 , TMS320F28027-Q1 , TMS320F280270 , TMS320F28027F , TMS320F28027F-Q1 , TMS320F28030 , TMS320F28030-Q1 , TMS320F28031 , TMS320F28031-Q1 , TMS320F28032 , TMS320F28032-Q1 , TMS320F28033 , TMS320F28033-Q1 , TMS320F28034 , TMS320F28034-Q1 , TMS320F28035 , TMS320F28035-EP , TMS320F28035-Q1 , TMS320F28050 , TMS320F28051 , TMS320F28052 , TMS320F28052-Q1 , TMS320F28052F , TMS320F28052F-Q1 , TMS320F28052M , TMS320F28052M-Q1 , TMS320F28053 , TMS320F28054 , TMS320F28054-Q1 , TMS320F28054F , TMS320F28054F-Q1 , TMS320F28054M , TMS320F28054M-Q1 , TMS320F28055 , TMS320F2806-Q1 , TMS320F28062 , TMS320F28062-Q1 , TMS320F28062F , TMS320F28062F-Q1 , TMS320F28063 , TMS320F28064 , TMS320F28065 , TMS320F28066 , TMS320F28066-Q1 , TMS320F28067 , TMS320F28067-Q1 , TMS320F28068F , TMS320F28068M , TMS320F28069 , TMS320F28069-Q1 , TMS320F28069F , TMS320F28069F-Q1 , TMS320F28069M , TMS320F28069M-Q1 , TMS320F28075 , TMS320F28075-Q1 , TMS320F28332 , TMS320F28333 , TMS320F28334 , TMS320F28335 , TMS320F28335-Q1 , TMS320F28374D , TMS320F28374S , TMS320F28375D , TMS320F28375S , TMS320F28375S-Q1 , TMS320F28376D , TMS320F28376S , TMS320F28377D , TMS320F28377D-EP , TMS320F28377D-Q1 , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28379D , TMS320F28379D-Q1 , TMS320F28379S , TMS320F28P550SJ , TMS320F28P559SJ-Q1
The F2838x CPU1-CPU2 kernel projects utilize the SCI ROM Bootloader in CPU1 to download the CPU1 application image and a modified bootloader to download the CPU2 application image. The CPU1 and CPU2 kernel and application files are entered as parameters to the serial_flash_programmer utility, and the CPU1 kernel is downloaded once the host has completed the autobaud lock with the CPU1 SCI ROM Bootloader. Once the CPU1 kernel has been downloaded, normal kernel operations can start such as DFU, Erase, etc.
Once the CPU1 operations are completed, the CPU2 kernel can be downloaded by selecting either the "Run CPU1 Load CPU2" or "Reset CPU1 Load CPU2" commands. For F2838x, there is not a SCI ROM Bootloader for CPU2, so CPU1 writes the CPU2 kernel into shared RAM for CPU2. There is also an instruction to branch to the CPU2 entry point placed in CPU1TOCPU2MSGRAM that is copied into M1RAM during the CPU2 boot sequence. After the branch instruction is written to M1RAM and the CPU2 boot sequence is complete, CPU2 starts execution from M1RAM and branches to the kernel entry point. Once the CPu2 kernel has been downloaded, normal kernel operations can start. The CPU1 kernel will be waiting for CPU2 to finish its kernel commands before proceeding to either the application address or a reset based on if "Run CPU1 Load CPU2" or "Reset CPU1 Load CPU2" was selected.
CPU1 has 9 Options | CPU2 has 7 Options |
1. DFU | 1. DFU |
2. Erase | 2. Erase |
3. Verify | 3. Verify |
4. Unlock Zone 1 | 4. Unlock Zone 1 |
5. Unlock Zone 2 | 5. Unlock Zone 2 |
6. Run | 6. Run |
7. Reset | 7. Reset |
8. Run CPU1 Load CPU2 | |
9. Reset CPU1 Load CPU2 |