I'm hoping that a kind soul with more expertise than I might throw me an assist. I'm no expert, but believe I should be able to manage resetting SMART on a Seagate ST2000LM007. I picked up a PL2303HX USB-TTL RS232 Arduino off eBay, but am having difficulties with getting terminal T>. Based on my research, the pin config for the diag port should be:
___________________
| Pwr | GND | TX | RX | - |SATA| - |PWR|
----------------------
So, I've connected my pins accordingly; using 38400 8N1 None with Realterm, and have played around with multiple pin configs. I just can't seem to get to T> no matter what. About the best I'll manage is either a locked session that is unresponsive, or depending on the config it will spit a bunch of garbled data (in ascii- hex will display characters).
Wondering if my usb-ttl is junk, or rather inappropriate for this job.
Prolific USB-TTL pin scheme
- Red: + 5V
- Black: Ground
- Green: RXD
- White: TXD
Hoping someone can steer me towards the right config with the hardware I have, or steer me towards what I need to purchase. I have 2 Seagate drives (ST2000LM003 & ST2000LM007) that I'd like to reset SMART on. I've tried to include the pertinent information in the pics.
Thank you so much!


___________________
| Pwr | GND | TX | RX | - |SATA| - |PWR|
----------------------
So, I've connected my pins accordingly; using 38400 8N1 None with Realterm, and have played around with multiple pin configs. I just can't seem to get to T> no matter what. About the best I'll manage is either a locked session that is unresponsive, or depending on the config it will spit a bunch of garbled data (in ascii- hex will display characters).
Wondering if my usb-ttl is junk, or rather inappropriate for this job.
Prolific USB-TTL pin scheme
- Red: + 5V
- Black: Ground
- Green: RXD
- White: TXD
Hoping someone can steer me towards the right config with the hardware I have, or steer me towards what I need to purchase. I have 2 Seagate drives (ST2000LM003 & ST2000LM007) that I'd like to reset SMART on. I've tried to include the pertinent information in the pics.
Thank you so much!

