NewHome › Forums › OSSC, OSSC Pro and DExx-vd isl › OSSC – DIY & Repair Support › v.1.7 not working even after JTAG flashing; how to debug? › Reply To: v.1.7 not working even after JTAG flashing; how to debug?
Hmm, on my OSSC 1.7, U5 is this regulator and the 3.3V output pin is the middle of the 3.
https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5011/AMS1117.pdf
I don’t know how to tell if I have the reference design or a clone. I bought it in 10/2023 for $184 on eBay, so it seemed reputable.
Anyways, U5 is OK, as far as I can tell.
I checked VCC on the W25Q16JV flash chip and it is 3.3V. How can that be if you say U6 powers it?
Regardless, how about I connect the output of U5 to the output of U6 since you said they’re both 3.3V, and see if that fixes it?

| Cookie | Duration | Description |
|---|---|---|
| _gat | 1 minute | This cookie is installed by Google Universal Analytics to restrain request rate and thus limit the collection of data on high traffic sites. |
| Cookie | Duration | Description |
|---|---|---|
| __gads | 1 year 24 days | The __gads cookie, set by Google, is stored under DoubleClick domain and tracks the number of times users see an advert, measures the success of the campaign and calculates its revenue. This cookie can only be read from the domain they are set on and will not track any data while browsing through other sites. |
| _ga | 2 years | The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. |
| _gid | 1 day | Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. |
| Cookie | Duration | Description |
|---|---|---|
| IDE | 1 year 24 days | Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile. |
| test_cookie | 15 minutes | The test_cookie is set by doubleclick.net and is used to determine if the user's browser supports cookies. |
| Cookie | Duration | Description |
|---|---|---|
| ct_checked_emails | session | No description |
| ct_has_scrolled | session | No description |
| ct_mouse_moved | session | No description |
| ct_screen_info | session | No description |
| wordpress_apbct_antibot | session | No description |
| wp_woocommerce_session_9cc3598a6315be16da4f85bb374cf6a5 | 2 days | No description |