Differences

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--- usb-devices:ch341a:3v-ch341a-mod [2020/03/15 15:26] – [Testing for 5V] chuck
+++ usb-devices:ch341a:3v-ch341a-mod [2024/03/17 13:15] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ======3.3V CH341a Signal Output Modification======
+----
+<WRAP announcement red smaller >
+==Warning==
+It is NOT recommended to use the CH341a for flashing!\\
+The following page for recommendations and an explanation of why the CH341a is not advised:\\
+https://libreboot.org/docs/install/spi.html#do-not-use-ch341a
+</WRAP>
 After realizing that my Black CH341a was not working as intended while [[laptop:lenovo-x230:flash-lenovo-x230-coreboot|flashing my x230 with Coreboot]], (it was sending 5V to the signal outputs instead of 3.3V) I decided to attempt the [[https://www.eevblog.com/forum/repair/ch341a-serial-memory-programmer-power-supply-fix/msg1323775/#msg1323775|fix]] I found online. It went well and only took about 15 minutes. All that is required is a decent soldering iron, a couple of hand tools, some small wire and a good amount of patience.
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 ====Testing for 5V====
-{{gallery> usb-devices:ch341a:3v-mod:?ch341a-*-5v.jpg&125x125&1920X1080&2&lightbox }}
+{{gallery> usb-device:ch341a:3v-mod:?ch341a-*-5v.jpg&250x250&1920X1080&2&lightbox }}
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@@ Line 50: / Line 61: @@
   - To be extra cautious, feel free to place a small piece of electrical tape over the pad to prevent any accidental short circuits.
-{{gallery> :zzz-site:ch341a:?ch341a_soldered_*.jpg&250x205&1920X1080&2&lightbox }}
+{{gallery> usb-device:ch341a:3v-mod:?ch341a-soldered-*.jpg&250x205&1920X1080&2&lightbox }}
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@@ Line 64: / Line 75: @@
-{{gallery>:zzz-site:ch341a:?ch341a_*_3.3v-1080.jpg&175x175&1920X1080&4&lightbox }}
+{{gallery> usb-device:ch341a:3v-mod:?ch341a-*-3.3v.jpg&250x250&1920X1080&2&lightbox }}
@@ Line 74: / Line 85: @@
   * [[https://www.eevblog.com/forum/repair/ch341a-serial-memory-programmer-power-supply-fix/|EEV Blog]]
   * [[http://www.advanced-monolithic.com/pdf/ds1117.pdf|DS1117 Schematic]]