topic How long does blhost take to flash image normally? in MCU Bootloader

How long does blhost take to flash image normally?

tonymakkiel — Thu, 20 Oct 2016 13:42:16 GMT

Hi,

I am trying to flash KL17 board using blhost (bootloader 2.0.0). It takes almost an hour (53 minutes) to flash a hex file of size 215243Bytes (ie 68B/s). Is it normal? Or am I missing something?

The command used is

./blhost -p /dev/ttyUSB0,115200 flash-image img_twrkl43z48m.hex erase

Many Thanks,

Tony

Re: How long does blhost take to flash image normally?

eatonzhang — Mon, 24 Oct 2016 05:46:33 GMT

Hi Tony,

It is not normal. The real speed should be lower than the theoretical one, but it shouldn't be such low.

But I tried to flash 32KB data into KL17, it costs 9.7s on Windows, 14.5s on Linux.

My Linux system is Ubuntu 14.10 32bits under Virtual Box.

I'm not sure if it is your OS's issue. Could you please re-try on other PCs?

Best Regards,

Yitao

Re: How long does blhost take to flash image normally?

tonymakkiel — Tue, 25 Oct 2016 14:39:21 GMT

Thank you Yitao. I will try on different OS(and PC) and update the result.