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SM2246XT
Posted: June 1st, 2017, 15:35
by sempre
Hello!
Please, Show me on the pcb what points for safe mode? look photo
Re: SM2246XT
Posted: June 1st, 2017, 17:04
by fzabkar
Here is a DIY development kit (US$22). Perhaps you could ask the seller for firmware and hardware development tools or documentation?
SSD PCBA Kits, SSD DIY, Flash Memory Interface BGA152/132, SM2246XT H AA, SATA6Gb/s Interface, SM2246HX, 4CH 4CE 4-LAND NAND Flash
https://www.aliexpress.com/item-img/SSD-PCBA-KITS-SSD-DIY-PCBA-Flash-Interface-BGA152-132-SM2246XT-H-Controller-SATA6Gb-s-Interface/32543701998.html
Re: SM2246XT
Posted: June 2nd, 2017, 13:48
by sempre
sempre wrote:Hello!
Please, Show me on the pcb what points for safe mode? look photo
Re: SM2246XT
Posted: June 2nd, 2017, 13:48
by sempre
sempre wrote:Hello!
Please, Show me on the pcb what points for safe mode? look photo
Re: SM2246XT
Posted: June 2nd, 2017, 14:30
by fzabkar
You have shown us the JTAG port and a serial communications port.
Re: SM2246XT
Posted: June 2nd, 2017, 16:01
by sempre
fzabkar wrote:You have shown us the JTAG port and a serial communications port.
Re: SM2246XT
Posted: June 2nd, 2017, 16:13
by fzabkar
The development kit has similar test points (ROM, ISP, HWP). These kits are useless without docs or software tools. That's why I suggested that the seller may have documentation that could help you.
Re: SM2246XT
Posted: June 2nd, 2017, 17:55
by fzabkar
FWIW, SanDisk's Z400S SSD has a JTAG edge connector (J1) plus a single pair of ROM pads. Perhaps the ROM pads are the answer?
http://pc.zoznam.sk/plextor-m6v-vs-sandisk-z400s-aky-vplyv-na-vykon-ssd-ma-dram-cache?page=2
Re: SM2246XT
Posted: June 6th, 2017, 9:21
by sempre
Thanks all helps!!
Sorry, Did not enter safe mode.
Is busy 100%.
Re: SM2246XT
Posted: June 6th, 2017, 10:14
by sempre
Re: SM2246XT
Posted: June 6th, 2017, 16:32
by fzabkar
I'm wondering whether a general method that could apply to all flash based devices would be to short the NAND or controller R/B* pins (open drain) to ground during power-on. I have recently seen one SSD that does it this way.
Re: SM2246XT
Posted: July 2nd, 2018, 17:45
by fzabkar
Re: SM2246XT
Posted: July 2nd, 2018, 18:14
by fzabkar
Just FYI, Transcend's TS6510 controller is a rebranded SM2246XT (DRAM-less version of SM2246EN).
http://www.siliconmotion.com/A6.1.Detail_News.php?sn=184The SM2246EN is an ultra high-performance and low power SATA 6Gb/s SSD controller supporting 1y/1z nm MLC NAND from all major NAND suppliers. ... The SM2246XT is a DRAM-less SATA 6Gb/s SSD controller ...
Re: SM2246XT
Posted: November 16th, 2018, 23:11
by reco
thanks for sharing.
hddguru is still a good place for me to keep learning stuff.