1. Question: How to solve Flash programming issues: Can I first use the emulator to download to external program storage RAM, and then have the program code write itself from external program storage RAM to the F240 internal Flash ROM? How to write? Answer: If you are using F240, you can use the TI download tool. Other methods can also be applied.2. Question: How to connect the C5510 chip to E1 signals? What should be noted during the connection? Answer: Connect via McBSP synchronous serial port. Ensure that the signal levels meet the requirements.3. Question: How to directly burn the .HEX program into FLASH using an emulator? For the DSP5402, do I need to write a separate burning program, and how to achieve it? Answer: Directly write .OUT. Write a program in the DSP to write the main program into FLASH.4. Question: I am using TMS320VC5402, downloading code via HPI, but the C5402 only provides a 16K word storage area. Can I download the code to its external extended storage area via HPI? Answer: No, it can only be downloaded to the internal chip.5. Question: In circuits using DSP, sometimes when the reset signal is low, the voltage is within the normal range, but the DSP fails to load the program. The current is also high, and sometimes the clock output is present. Why? Answer: The program cannot be loaded during reset.6. Question: What issues should be noted when connecting DSP and microcontroller to form a master-slave system? Answer: It is recommended to use the HPI interface or connect via DPRAM.7. Question: What advantages does a DSP development system have over a regular microcontroller development system? What kind of systems are generally suitable for DSP? What about the development cycle, investment, and costs? Do DSP interface circuits require specialized chips? Answer: 1. High performance; 2. Suitable for high-speed requirements; 3. Development cycle is usually 6 months, investment around 10,000 yuan; 4. Not necessarily, but high-speed chips are needed.8. Question: What impact does DSP have on the original analog circuits? Answer: On one hand, DSP can replace some functions originally implemented by analog circuits with digital processing methods; on the other hand, the high speed of DSP can cause significant interference to analog circuits, so it should be designed to keep DSP as far away from the analog circuit part as possible.9. Question: Measures to ensure the conversion accuracy of TMS320LF2407A/D? Answer: The reference power supply and analog power supply must be clean.10. Question: During system debugging, if the ripple is too large, what is the main issue? Answer: If it is a power supply ripple, increase the capacitor filtering.11. Question: Can I use a 5V powered active crystal oscillator to provide the clock for the DSP, and can I use two resistors to divide the voltage before connecting to the DSP clock input? Will the clock work stably this way? Answer: This is not advisable; it is recommended to use a crystal.12. Question: What issues should be noted when wiring during the interface between DSP and the forward channel (for example, AD) to ensure AD sampling stability? Answer: Separate the analog ground and digital ground, but connect them at one point.13. Question: What are the general steps for designing a DSP motherboard? What special issues should be noted? Answer: 1. Choose the chip; 2. Design timing; 3. Design PCB. The most important are timing and wiring.14. Question: How to eliminate signal interference during the hardware design stage? From what aspects should we approach it? Answer: 1. Separate analog and digital; 2. Use multi-layer boards; 3. Capacitor filtering.15. Question: In circuit board design, how to effectively solve the problem of electrostatic interference? Answer: Generally, connecting the chassis to the ground can meet the requirements. In special cases, special anti-static devices should be connected in series with the power input and digital input.16. Question: What issues should be particularly noted in the electromagnetic compatibility (EMC) design of DSP boards? Answer: Properly handle power supply and ground plane, and use series termination resistors for high-speed and critical signals at the source end to avoid signal reflection.
