unknown chip needs information  - Page 1
Forum section: electronics / repair

author: james101
author_rank: Contributor
timestamp: May 03, 2021, 11:46:02 pm
content: Hi there im trying to find a data sheet or know what this chip isthis is unknownits from a charger unit i have.can anyone help us out or know where to get a data sheet PDFor somewhere that would sell these chipsthank you

author: dc101
author_rank: Regular Contributor
timestamp: May 04, 2021, 12:29:13 am
content: Maybe this?https://datasheet.lcsc.com/szlcsc/2009231805_GigaDevice-Semicon-Beijing-GD32E230K8T6_C712540.pdfit actually comes in a tssop20 although it seems unlikely.Can you try taking another photo at a different angle, maybe try and cut down the glare on the chip so we can better read the printing? Some pictures of the surrounding board might help as well.Also, do you have a part number or name of the charger, what does it charge?Cheers-Tim

author: amyk
author_rank: Super Contributor
timestamp: May 04, 2021, 03:07:15 am
content: APT32F003F6P6Despite this clearly ST-inspired part numbering, this is NOT an ARM but "C-SKY" core, which is basically another MIPS clone.

author: dc101
author_rank: Regular Contributor
timestamp: May 04, 2021, 03:13:14 am
content: Good eye! I didn't see the 3 after 32F00.

author: james101
author_rank: Contributor
timestamp: May 04, 2021, 03:42:27 am
content: hi thanks for helping us out is there a English data sheet at allis it possible to get this chip at all being a clone.thanks all

author: dc101
author_rank: Regular Contributor
timestamp: May 04, 2021, 04:20:52 am
content: It's unlikely that you would be able to find an exact replacement for it without having to purchase another charger. Perhaps you could explain what you're trying to accomplish so that we can help you? I would say to dump the flash of the existing chip, but not knowing the condition of your current chip, or what you're actually trying to achieve, it's hard to suggest anything.

author: james101
author_rank: Contributor
timestamp: May 04, 2021, 04:36:59 am
content: its pointing out that the current chip possible has a short on it.looking at the data sheet should give me some ideas.charger does not wake upeverything else checks out to be working fineexcept this chip.i been checking for a replacement and not having much luck,the charger is unknown model as its going under all different namesthere no marking inside or model number.

author: dc101
author_rank: Regular Contributor
timestamp: May 04, 2021, 02:34:16 pm
content: The datasheet points out the chip has SWD support. If you have a JTAG adapter that supports SWD, you might be able to dump the flash ram from the chip. That is of course assuming that the chip still functions/flash is not corrupt, and that no fuses have been blown to prevent reading the flash memory.There are development boards available for this MCU that appear to also contain a small SWD programmerhttp://en.aptchip.com/article/MCUdevelopmentboardYou could use the SWD programmer to dump the flash from your MCU, then program the new MCU on the board, remove it from the dev board and replace your MCU.

author: james101
author_rank: Contributor
timestamp: May 04, 2021, 10:05:51 pm
content: thank you for the information i emailed the company to see if they send overseas.looks like there a short on the chip.trying to source a replacement.thank you for all your help