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InfiniTimeOrg / InfiniTime

Firmware for Pinetime smartwatch written in C++ and based on FreeRTOS
GNU General Public License v3.0
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Firmware update going at 200 bytes per second #1448

Closed Anonymous941 closed 1 year ago

Anonymous941 commented 1 year ago

Verification

What happened?

The firmware update is going at an incredibly slow speed

What should happen instead?

No response

Reproduction steps

I have a Linux computer that I'm using to send a firmware update, and I've tried itd and Siglo but they both update the firmware at 200 bytes per second. I've tried on an Android phone and it works much more quickly. My computer has Bluetooth 4.0. I'm testing custom firmware and need to flash it frequently so it's been annoying to have to wait around 15 minutes for the firmware to flash.

Could it have something to do with src/drivers/Bma421_C/bma4.h having multiple lines that include BMA4_OUTPUT_DATA_RATE_200HZ (lines 395, 1838 and 1883)?

More details?

No response

Version

1.11

Companion app

itd and Siglo

Avamander commented 1 year ago

I think it has something to do with src/drivers/Bma421_C/bma4.h having multiple lines that include BMA4_OUTPUT_DATA_RATE_200HZ (lines 395, 1838 and 1883) but I don't know how to fix this.

Very unrelated.

My computer has Bluetooth 4.0.

That is the most likely cause, alongside general Linux BT stack inefficiencies. In theory people with more in-depth knowledge of the Linux BT stack and/or the companion software might be able to improve it. Otherwise it is how it is.

Anonymous941 commented 1 year ago

I think it has something to do with src/drivers/Bma421_C/bma4.h having multiple lines that include BMA4_OUTPUT_DATA_RATE_200HZ (lines 395, 1838 and 1883) but I don't know how to fix this.

Very unrelated.

My computer has Bluetooth 4.0.

That is the most likely cause, alongside general Linux BT stack inefficiencies. In theory people with more in-depth knowledge of the Linux BT stack and/or the companion software might be able to improve it. Otherwise it is how it is.

@Avamander Bluetooth 5.0 works, right? If so I'll buy a dongle.

Avamander commented 1 year ago

@Anonymous941

Bluetooth 5.0 works, right?

That's a bit too generic to base a decision upon. In theory, yes. New BT Low Energy support should be sufficient and newer BT dongles are said to work better, but it's strongly recommended to have the option to return it, should it actually not perform that well.

JF002 commented 1 year ago

I also noticed great variations between devices : my old phone and my PC upload at 1-3KB/s, my new Android phone reach 12BK/sKB/s. To be honest, I don't know why there are such differences between devices and if there's anything we can do in InfiniTime to improve the upload speed.

Anonymous941 commented 1 year ago

I also noticed great variations between devices : my old phone and my PC upload at 1-3KB/s, my new Android phone reach 12BK/s. To be honest, I don't know why there are such differences between devices and if there's anything we can do in InfiniTime to improve the upload speed.

@JF002 I've noticed that it occasionally goes more quickly (I'm just guessing here, but I'd say around 5 KB/s) but often goes at around 0.5 KB/s on my computer. Usually when I first start uploading firmware after a few days of not flashing anything is when it goes fastest. I have no idea what would cause that strange behavior and am not good enough at C++ to understand driver code...

my new Android phone reach 12BK/s

Is this a typo or did you mean something different then kilobytes per second?

JF002 commented 1 year ago

Yeah, sorry, that was a typo, I meant KB/s.

Regarding the issue with the upload speed, maybe try with another bluetooth adapter? Or, if you are developing on the PineTime, using the devkit (or an unsealed device) with an SWD probe will definitely be much faster!