Hey everyone,
I'm pretty new EE in general. It's always just been a hobby after I took my physics course. I purchased the TL866A in hopes that I could tinker and learn.
Unfortunately, like Prema, every time I try to read a SOIC 8 chip in-circuit (the clip was included in my purchase), I get the over-current error. I've tried several different SOIC 8 chips in-circuit.
This time, I'm trying to clone my gate opener so I don't need to call the housing authority to register a new one.
The chip is a Microchip 12LCE519-4I SOIC 8. In the program, I selected PIC12LCE519 SOIC 8.
I also tried shorting C22 as radioman suggested, and it seems to work! But due to my inexperience, I'm not sure if it's truly working. First, there is no chip ID, but I noticed that "Read ID" function seems to be associated with the chip type? As in, some chips the option is there and some chips it's grayed out. Is that normal? Also, which I click the "Config" tab after reading the chip, it gives me a warning "The Value must less than 0x0FFF!" So I'm not sure if this is because I overrode the overcurrent protection. I know Prema just desoldered it, but I'm still "developing" my IC desoldering skills and would like to first see if it's possible to do it in-circuit.
I'll attach some screen shots after reading the chip. Can someone people look over them to see if it seems right?
Any input into my situation or just the "over-current protection" in general would be appreciated.
Thanks!!
Hey everyone,
I'm pretty new EE in general. It's always just been a hobby after I took my physics course. I purchased the TL866A in hopes that I could tinker and learn.
Unfortunately, like Prema, every time I try to read a SOIC 8 chip in-circuit (the clip was included in my purchase), I get the over-current error. I've tried several different SOIC 8 chips in-circuit.
This time, I'm trying to clone my gate opener so I don't need to call the housing authority to register a new one.
The chip is a Microchip 12LCE519-4I SOIC 8. In the program, I selected PIC12LCE519 SOIC 8.
I also tried shorting C22 as radioman suggested, and it seems to work! But due to my inexperience, I'm not sure if it's truly working. First, there is no chip ID, but I noticed that "Read ID" function seems to be associated with the chip type? As in, some chips the option is there and some chips it's grayed out. Is that normal? Also, which I click the "Config" tab after reading the chip, it gives me a warning "The Value must less than 0x0FFF!" So I'm not sure if this is because I overrode the overcurrent protection. I know Prema just desoldered it, but I'm still "developing" my IC desoldering skills and would like to first see if it's possible to do it in-circuit.
I'll attach some screen shots after reading the chip. Can someone people look over them to see if it seems right?
Any input into my situation or just the "over-current protection" in general would be appreciated.
Thanks!!
I'll tell you right now FOR SURE that the OC-protection is because the entire board you are trying to program on is being partially powered through the soic which is drawing too much power from the programmer. try clipping (or desolder/lift) either the vcc or gound on the chip (or both) and then program. then just a dab of solder and everythings back to normal. you just need to prevent the board from drawing extra current from the programmer.
Hello Everyone, I just registered to say that I have personally worked with the engineer/programmer in china
He also was willing to implement chip specific adapters of my design, dream come true guys, Hit him up guys, help make this the best programmer PERIOD
He would require 2-3 samples be sent to him. I'll try to get hold of him and get the address again, It's been about a year since we've spoke. but I'm SURE he'll impliment it
@itsdavid there's not much point in replacing it if you're able to buy the original off of mouser or digikey. Especially if you're cloning a gate opener your best bet is to stick with the same part. Its possible the source would need to be recompiled with a different toolchain or something with the new chip. Those 'mature' and 'nearing end of life' warnings are for people who are designing products with the chip and who will need thousands of them over the next few years. they're basically saying don't start a new design from scratch with this chip, start with this other one which we'll be making for the next 5 years.
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