Mirrors/cartreader
2
0
Fork 0
mirror of https://github.com/sanni/cartreader.git synced 2025-02-18 14:06:20 +01:00
Code Issues Projects Releases Wiki Activity

Updated Automatic Voltage Selection (markdown)

Ancyker 2024-02-29 17:57:09 -05:00
parent 7b0ea145e6
commit da863919e5
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Automatic-Voltage-Selection.md

@ -1,11 +1,13 @@
Automatic Voltage Selection (Vselect) is an optional feature of HW5. It allows the firmware to select the voltage for you based on the cartridge you've selected. This simplifies the use of the OSCR HW5, leaving only a power switch. Because this feature removes/replaces the hardware switch for voltage selection, it is not recommended if you want to use the OSCR to flash ROMs to blank ROM chips using a ROM adapter. If you don't know what that means, don't worry, it just probably doesn't apply to you.
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
Under no circumstances should you install the physical voltage switch and Vselect at the same time. Doing so will cause irreparable damage to your LCD and other components.
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
# Using Vselect
Once installed, using Vselect is very straightforward. Simply turn on the OSCR, insert a cartridge, and select the system as normal. The system will automatically switch voltages for you. When no system is selected the firmware will set the voltage to 3.3V to protect your cartridges. Note that you should not have a 3.3V cartridge in the reader when powering it on or resetting it, as it may briefly be sent 5V. This happens for a very short time and is unlikely to cause any harm, but it's good practice.
Once installed, using Vselect is very straightforward. Simply turn on the OSCR, insert a cartridge, and select the system as normal. The system will automatically switch voltages for you. When no system is selected the firmware will set the voltage to 3.3V to protect your cartridges.
Note: There was originally a warning here saying that you should not have a 3.3V cartridge in the reader when powering it on or resetting it. This was made unnecessary in firmware V13.2. See discussion [#906](https://github.com/sanni/cartreader/discussions/906).
# SMT Components / Soldering Difficulty
Vselect uses SMT ("Surface Mounted Technology") components, including 0402 size components, and requires soldering skills significantly above what the rest of the assembly of an OSCR requires. Here is an example of an 0402 component:
@ -38,9 +40,9 @@ You will need several components. The easiest way to get the right components is
Note: While you only need 1-2 of each of the 0402 package capacitors and resistors, it's recommended that you purchase at least 10 as you are likely to lose some.
# Installation
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
Under no circumstances should you install the physical voltage switch and Vselect at the same time. Doing so will cause irreparable damage to your LCD and other components. If you are installing Vselect onto an existing OSCR, remove the voltage switch first!
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
**_!! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!_**
When using Vselect, you must not install the voltage selection switch or the status/power LED. Installing the voltage select switch will cause damage to your LCD. This is because when Vselect is used, the pin normally used for the status LED is instead used to toggle the voltage.