TS-4800 LEDs: Difference between revisions
From embeddedTS Manuals
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On all of our baseboards we include 2 indicator LEDs which are under software control. You can manipulate these using | On all of our baseboards we include 2 indicator LEDs which are under software control. You can manipulate these using <code>ts4800ctl --greenledon --redledon</code> or <code>ts4800ctl --greenledoff --redledoff</code>. The LEDs have 4 behaviors from default software. | ||
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| Off | | Off | ||
| Off | | Off | ||
| The FPGA is not able to start. Typically either the board is not being supplied with enough voltage, or the FPGA has been otherwise damaged. If a stable 5V is being provided and the supply is capable of providing at least | | The FPGA is not able to start. Typically either the board is not being supplied with enough voltage, or the FPGA has been otherwise damaged. If a stable 5V is being provided and the supply is capable of providing at least 1 A to the System-on-Module (SoM), an [http://www.embeddedTS.com/about/rma.php RMA] is suggested. | ||
|- | |- | ||
| On | | On | ||
| On | | On | ||
| The board is receiving too little power, or something is drawing too much current from the | | The board is receiving too little power, or something is drawing too much current from the SoM's power rails. | ||
|} | |} |
Latest revision as of 17:35, 12 June 2023
On all of our baseboards we include 2 indicator LEDs which are under software control. You can manipulate these using ts4800ctl --greenledon --redledon
or ts4800ctl --greenledoff --redledoff
. The LEDs have 4 behaviors from default software.
Green Behavior | Red behavior | Meaning |
---|---|---|
On | Off | System is booted and running |
On | On for approximately 15s, then off | Once the system has booted the kernel and executed the startup script, it will check for a USB device and then determine if it is a mass storage device. This is used for updates/blasting through USB. Once it determines this is not a mass storage device the red LED will turn back off. |
On | Turns on for 300ms, and then turns off for 10s | The watchdog is continuously resetting the board. This happens when the system cannot find a valid boot device, or the watchdog is otherwise not being fed. This is normally fed by ts4800ctl once a valid boot media has started. See the #Watchdog section for more details. |
Off | Off | The FPGA is not able to start. Typically either the board is not being supplied with enough voltage, or the FPGA has been otherwise damaged. If a stable 5V is being provided and the supply is capable of providing at least 1 A to the System-on-Module (SoM), an RMA is suggested. |
On | On | The board is receiving too little power, or something is drawing too much current from the SoM's power rails. |