X728: Difference between revisions

(12 intermediate revisions by 4 users not shown)

Line 157:

* Power via DC5521 Jack of X728, 5.1Vdc +/-5% , ≥4A (DC5525 Jack is compatible with DC5521, also support 5V PSU with DC5525 Jack)

* Power via USB Type-C port of X728, 5.1Vdc +/-5% , ≥3A (Geekworm Type-C 5V 4A 20W power supply is recommended.）

==User manual==

* [[X728-script]]: This is script installation tutorial for X728 shield

* [[x728-hardware]]: Provides some hardware parameter information.

==Packing List==

* X728 Expansion Board x 1

* Screw M2.~~5 *5mm~~ x 8

* Screw M2.5x5mm x 8

* Spacer M/F M2.~~5 *20mm~~ x 4

* Spacer M/F M2.5x20+6mm x 4

* Spacer F/F M2.~~5 *20mm~~ x 4

* Spacer F/F M2.5x20mm x 4

* Jumper link Pitch 2.54mm x 2

[[File: IMG-0449-Packing-List.jpg|600px]]

~~==User manual==~~

* [[X728-script]]: This is script installation tutorial for X728 shield

* [[x728-hardware]]: Provides some hardware parameter information.

==X728-C1==

Line 187:

==X728-A1==

<span style="color:red;font-weight:bold">X728-A1 Optional Raspberry Pi cooling fan</span>

<span style="color:red;font-weight:bold">X728-A1 Optional Raspberry Pi cooling fan</span>（'''Discontinued'''）

* Completely solve the overheating problem of your Raspberry Pi

* Efficient drop temp of your Raspberry Pi by using the X728-A1

Line 200:

==X728-A2==

<span style="color:red;font-weight:bold">X728-A2 Optional 18650 2-Cell battery holder</span>

<span style="color:red;font-weight:bold">X728-A2 Optional 18650 2-Cell battery holder</span>（'''Discontinued'''）

* Stackable 18650 two cells lithium Ion holder

* Ideal solution to increase battery capacity

Line 248:

Q: Why Raspberry Pi is randomly rebooting all the time?

Q2: Why Raspberry Pi is randomly rebooting all the time?

</div>

Line 260:

Q: Why the X728 V1.3 remove the ASD function?

Q3: Why the X728 V1.3 remove the ASD function?

</div>

Line 269:

Q: How to restart the pi board when AC Power supply is connected?

Q4: How to restart the pi board when AC Power supply is connected?

</div>

Line 278:

Q: Which GPIO is used to power the X728-A1 cooling fan?

Q5: Which GPIO is used to power the X728-A1 cooling fan?

</div>

Line 287:

Q: Are the batteries on X728 hot-swappable? In other words, can I connect an external power supply and swap the batteries out while that is on?

Q6: Are the batteries on X728 hot-swappable? In other words, can I connect an external power supply and swap the batteries out while that is on?

</div>

Line 296:

Q: Does the rtc have a separate battery? or does it run on the 18650 batteries? what happens if you remove them? will it "lose" time?

Q7: Does the rtc have a separate battery? or does it run on the 18650 batteries? what happens if you remove them? will it "lose" time?

</div>

Line 305:

Q: What will lead to the X728 board be burnt out?

Q9: What will lead to the X728 board be burnt out?

</div>

Line 314:

Q: What frequency does X728 use in the I2C communication bus used to communicate with RPI?

Q10: What frequency does X728 use in the I2C communication bus used to communicate with RPI?

</div>

Line 323:

Q: What the maximum current rating of X728-A1 is?

Q11: What the maximum current rating of X728-A1 is?

</div>

Line 332:

Q: Simulate power outage and reconnection scenario. Why does the Raspberry Pi fail to ~~reboot~~ after unplugging and reconnecting the power supply?

Q12: Simulate power outage and reconnection scenario. Why does the Raspberry Pi fail to auto boot after unplugging and reconnecting the power supply?

</div>

A: ~~The~~ Raspberry Pi fails to ~~reboot~~ after power reconnection due to '''<span class="tb_red">incomplete power discharge</span>'''.

A: In the process of X728 auto power-on test, the Raspberry Pi fails to auto boot after power reconnection due to '''<span class="tb_red">incomplete power discharge</span>'''. This issue usually occurs when cutting power by unplugging the power adapter, while it will not happen if you disconnect the USB port directly.

:'''1. Cause'''

:~~Onboard capacitors hold residual~~ power after ~~power~~ disconnection, ~~leaving~~ voltage at the X728 input terminal. ~~Instant reconnection cannot~~ fully ~~break~~ the ~~power~~ circuit, so the ~~reboot mechanism will not~~ be ~~activated~~.

:Residual charge remains in the power adapter after disconnection, keeping voltage present at the X728 input terminal. Reconnecting power immediately fails to fully cut off the circuit, hence the auto power-on function cannot be triggered.

:'''2. Discharge Completion Check (refer to the picture)'''

:~~Discharge duration differs among power adapters.~~ Measure voltage on X728 input pads; the ~~power~~ is ~~fully discharged~~ when ~~the~~ voltage ~~drops~~ to zero~~. It generally~~ takes ~~about~~ 30 ~~minutes~~.

:Measure the voltage on the X728 DC jack input pads. The auto power-on function will be invalid if the reading is non-zero. Full discharge is achieved when voltage falls to zero, which usually takes more than 30 seconds. Discharge time varies depending on different power adapters.

:[[File:X728-FAQ.jpg|700px]]

~~:'''3. Operating Steps'''~~

~~::3.1 Cut off the external power supply~~

~~::3.2 Stand by until input pad voltage reaches zero (Better wait several extra seconds)~~

~~::3.3 Reconnect power, the device will reboot automatically as normal~~

</div>

<~~comments~~ />

<comment-streams id="main" />

[[Category:Product Manual]]

[[Category:Raspberry pi]]

@@ Line 157: / Line 157: @@
 * Power via DC5521 Jack of X728, 5.1Vdc +/-5% , ≥4A (DC5525 Jack is compatible with DC5521, also support 5V PSU with DC5525 Jack)
 * Power via USB Type-C port of X728, 5.1Vdc +/-5% , ≥3A (Geekworm Type-C 5V 4A 20W power supply is recommended.）
+==User manual==
+* [[X728-script]]:  This is script installation tutorial for X728 shield
+* [[x728-hardware]]:  Provides some hardware parameter information.
 ==Packing List==
 * X728 Expansion Board	x 1
-* Screw M2.5 *5mm	x 8
+* Screw M2.5x5mm	x 8
-* Spacer M/F M2.5 *20mm	x 4
+* Spacer M/F M2.5x20+6mm	x 4
-* Spacer F/F M2.5 *20mm	x 4
+* Spacer F/F M2.5x20mm	x 4
 * Jumper link Pitch 2.54mm x 2
 [[File: IMG-0449-Packing-List.jpg|600px]]
-==User manual==
-* [[X728-script]]:  This is script installation tutorial for X728 shield
-* [[x728-hardware]]:  Provides some hardware parameter information.
 ==X728-C1==
@@ Line 187: / Line 187: @@
 ==X728-A1==
-<span style="color:red;font-weight:bold">X728-A1 Optional Raspberry Pi cooling fan</span>
+<span style="color:red;font-weight:bold">X728-A1 Optional Raspberry Pi cooling fan</span>（'''Discontinued'''）
 * Completely solve the overheating problem of your Raspberry Pi
 * Efficient drop temp of your Raspberry Pi by using the X728-A1
@@ Line 200: / Line 200: @@
 ==X728-A2==
-<span style="color:red;font-weight:bold">X728-A2 Optional 18650 2-Cell battery holder</span>
+<span style="color:red;font-weight:bold">X728-A2 Optional 18650 2-Cell battery holder</span>（'''Discontinued'''）
 * Stackable 18650 two cells lithium Ion holder
 * Ideal solution to increase battery capacity
@@ Line 248: / Line 248: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: Why Raspberry Pi is randomly rebooting all the time?
+Q2: Why Raspberry Pi is randomly rebooting all the time?
 </div>
 <div class="mw-collapsible-content">
@@ Line 260: / Line 260: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: Why the X728 V1.3 remove the ASD function?
+Q3: Why the X728 V1.3 remove the ASD function?
 </div>
 <div class="mw-collapsible-content">
@@ Line 269: / Line 269: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: How to restart the pi board when AC Power supply is connected?
+Q4: How to restart the pi board when AC Power supply is connected?
 </div>
 <div class="mw-collapsible-content">
@@ Line 278: / Line 278: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: Which GPIO is used to power the X728-A1 cooling fan?
+Q5: Which GPIO is used to power the X728-A1 cooling fan?
 </div>
 <div class="mw-collapsible-content">
@@ Line 287: / Line 287: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: Are the batteries on X728 hot-swappable? In other words, can I connect an external power supply and swap the batteries out while that is on?
+Q6: Are the batteries on X728 hot-swappable? In other words, can I connect an external power supply and swap the batteries out while that is on?
 </div>
 <div class="mw-collapsible-content">
@@ Line 296: / Line 296: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: Does the rtc have a separate battery? or does it run on the 18650 batteries? what happens if you remove them? will it "lose" time?
+Q7: Does the rtc have a separate battery? or does it run on the 18650 batteries? what happens if you remove them? will it "lose" time?
 </div>
 <div class="mw-collapsible-content">
@@ Line 305: / Line 305: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: What will lead to the X728 board be burnt out?
+Q9: What will lead to the X728 board be burnt out?
 </div>
 <div class="mw-collapsible-content">
@@ Line 314: / Line 314: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: What frequency does X728 use in the I2C communication bus used to communicate with RPI?
+Q10: What frequency does X728 use in the I2C communication bus used to communicate with RPI?
 </div>
 <div class="mw-collapsible-content">
@@ Line 323: / Line 323: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q:  What the maximum current rating of X728-A1 is?
+Q11:  What the maximum current rating of X728-A1 is?
 </div>
 <div class="mw-collapsible-content">
@@ Line 332: / Line 332: @@
 <div class="toccolours mw-collapsible mw-collapsed">
 <div style="font-weight:bold;line-height:1.0;">
-Q: Simulate power outage and reconnection scenario. Why does the Raspberry Pi fail to reboot after unplugging and reconnecting the power supply?
+Q12: Simulate power outage and reconnection scenario. Why does the Raspberry Pi fail to auto boot after unplugging and reconnecting the power supply?
 </div>
 <div class="mw-collapsible-content">
-A: The Raspberry Pi fails to reboot after power reconnection due to '''<span class="tb_red">incomplete power discharge</span>'''.
+A: In the process of X728 auto power-on test, the Raspberry Pi fails to auto boot after power reconnection due to '''<span class="tb_red">incomplete power discharge</span>'''. This issue usually occurs when cutting power by unplugging the power adapter, while it will not happen if you disconnect the USB port directly.
 :'''1. Cause'''
-:Onboard capacitors hold residual power after power disconnection, leaving voltage at the X728 input terminal. Instant reconnection cannot fully break the power circuit, so the reboot mechanism will not be activated.
+:Residual charge remains in the power adapter after disconnection, keeping voltage present at the X728 input terminal. Reconnecting power immediately fails to fully cut off the circuit, hence the auto power-on function cannot be triggered.
 :'''2. Discharge Completion Check (refer to the picture)'''
-:Discharge duration differs among power adapters. Measure voltage on X728 input pads; the power is fully discharged when the voltage drops to zero. It generally takes about 30 minutes.
+:Measure the voltage on the X728 DC jack input pads. The auto power-on function will be invalid if the reading is non-zero. Full discharge is achieved when voltage falls to zero, which usually takes more than 30 seconds. Discharge time varies depending on different power adapters.
 :[[File:X728-FAQ.jpg|700px]]
-:'''3. Operating Steps'''
-::3.1 Cut off the external power supply
-::3.2 Stand by until input pad voltage reaches zero (Better wait several extra seconds)
-::3.3 Reconnect power, the device will reboot automatically as normal
 </div>
 </div>
 <!--增加评论功能！ -->
-<comments />
+<comment-streams id="main" />
 [[Category:Product Manual]]
 [[Category:Raspberry pi]]