SPRADG2 January   2024 AM67 , AM67A , AM68 , AM68A , AM69 , AM69A , DRA821U , DRA821U-Q1 , DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4AEN-Q1 , TDA4AH-Q1 , TDA4AL-Q1 , TDA4AP-Q1 , TDA4APE-Q1 , TDA4VE-Q1 , TDA4VEN-Q1 , TDA4VH-Q1 , TDA4VL-Q1 , TDA4VM , TDA4VM-Q1 , TDA4VP-Q1 , TDA4VPE-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Device Type and Key Information Provided
    1. 2.1 Get Other Key Information via MCU UART
  6. 3HS Device Return
    1. 3.1 CRP Script Tool
    2. 3.2 Generate and Signs the WIR Certificate Binary (override.bin) Standalone
    3. 3.3 Generate the Binaries for Bench Test Standalone
  7. 4Summary
  8. 5References

2 Device Type and Key Information Provided

You can get the part number from your device surface or search it from your order placed to TI. And then you can download the data sheet from ti.com. Take TDA4VM as an example. For more information, see the Device and Documentation Support section in TDA4VM Jacinto™ Processors for ADAS and Autonomous Vehicles Silicon Revisions 1.0 and 1.1. You can identify what type of device you have. There is lot of detail for device types. You only need to care about the three type described in Table 2-1.

Table 2-1 The JTAG State in GP/HS Silicon
Device Type Variant DMSC/SMS JTAG States R5F JTAG States
General Purpose (GP) NA Open Open
High Security Security Enforced (SE) Closed (TI) Closed (Customer)
High Security-Prime Security Enforced (SE) Closed (Customer) Closed (Customer)

For example: TDA4VM88TGBALFRQ1 --- General Purpose can return to TI directly.

TDA4VM88T5BALFRQ1 --- High Security need unlock Preparation, don’t return directly.

The return process for the three device types is different. In particular, the difference between general-purpose chips and high-security chips is even greater, the return for HS device will be more complex.