kPollAbortTimeoutMs param value in Kinetis Bootloader package

[vyacheslavguzhv]

• Inside NXP Tool from Kinetis Bootloader package there default waiting time = 100ms after each command of writing via USB HID protocol. Such waiting time set into UsbHidPeriferals.h file
  • kPollAbortTimeoutMs = 100
• But in this case whole bootloader (19KB) loading during ~1,5 minutes, which is not acceptable from mass production point of view.

• can you recommend the most efficient parameter of waiting time for kPollAbortTimeoutMs (to have lower failed rate~=0,2%, but still with acceptable loading time)?

[jingpan]

Hi,

Please try mfgtools in kinetis bootloader 2.0.0. It can program 4 chip simultaneously.

Regards,

Jing

[jingpan]

Hi,

Can you give more detail about your problem, such as MCU, bootloader version and which tool?

Do you mean it will take you 1~5 minute to download image? I think there must be some problem in your system. It shouldn't be so long.

Regards,

Jing

[vyacheslavguzhv]

Hi Jing,

1. Kinetis Bootloader v1.1 is used as namely this version flashloader (1.1) is loaded to MK22FN256.

2. The mentioned files (including UsbHidPeriferals.h) are in the folder: «\src\blfwk» from file «FSL_Kinetis_Bootloader_1_1_0.zip».

Slava

[vyacheslavguzhv]

Hi Jing,

Kinetis MK22FN256

Kinetis Bootloader 1.1

Its not 5 mins, but for hundreds MCU its painful to use standard settings

kPollAbortTimeoutMs = 100.

Slava

[jingpan]

Hi,

Excuse me, but I have to check with you. I can't find UsbHidPeriferals.h in FSL_Kinetis_Bootloader_1_1_0, nor kPollAbortTimeoutMs. Do I search in wrong package?

BTW, the current version of BOOTLOADER is 2.0.0. It's now called MCU BOOTLOADER2.0.0. You can download it from https://www.nxp.com/pip/MCUBOOT. I think it is easier to use than v1.1, and can get more support.

Regards,

Jing