Please help me check if 28335 is down

asdmaill

Please help me check if 28335 is down [Copy link]

When debugging, CCS6 popped up this , tried many times, various configurations, all the same

elvike

XDS2xx Are you sure you have chosen the right emulator? For this type of emulator, check the power, reset, and JTAG ports.

asdmaill

I chose the right one. Another identical board ran fine, so I guess the chip is broken.

besk

The film is not so easy to hang, so check the circuit, welding, and power supply.

alan000345

Yes, the microcontroller is not that fragile, so you should check it carefully.

chunyang

This is far from sufficient basis for judging chip damage. Problems with cables, connectors, circuits, PCBs, and even welding are all possible.

Jacktang

Check the emulator cable connection or the emulator problem

asdmaill

I checked it, re-soldered it, and there was no problem with the debugger burning and emulation on another board. When the board with the problem was connected, CCS prompted "MCU possibly locked"

asdmaill

So I don't have any luck, the film just crashed Three films crashed in total. The first two films were caused by me trying to modify the CMD file and move the code to RAM for execution. As a result, the operation was incorrect and the code was burned into the password area. The third film was lent to a classmate a few days ago. I don't know how he operated it at that time.

asdmaill

Because C2000 is seldom used because of its characteristic that the chip will fail easily if the power supply voltage fluctuates greatly during programming and simulation, or if the programming is incorrect, and dsPIC is almost always used. dsPIC is easy to mess around with, and will only fail if there is a power short circuit. Compared with C2000, dsPIC's FLASH is very fast, unlike C2000, which has to move real-time code to RAM for execution. The disadvantage is that the main frequency is slower and it is still a 16-bit chip, so you can't have your cake and eat it too.