topic Conditions for disabling time-out detection in MCU Bootloader

Conditions for disabling time-out detection

masahirokiniwa — Thu, 27 Jul 2017 05:20:37 GMT

Could you tell me conditions for disabling time-out, when I use KL03 ROM bootloader.

When boot-pin is asserted or user-application is not valided, ROM bootloader disable time-out detection.
It's wrote at KL03 reference manual Rev.4 P.113 Figure 11-2.
But ROM bootloader disabled time-out detection at another situation, when I ran it from my user application.

I ran bootloader by below sequence same as RM P.114 11.3.5.
// Read the function address from the ROM API tree.
runBootloaderAddress = **(uint32_t **)(0x1c00001c);
runBootloader = (void (*)(void * arg))runBootloaderAddress;
// Start the bootloader.
runBootloader(NULL);

And I set BCA as below.
tag = "kcfg"
enabledPeripherals = use only I2C
i2cSlaveAddress = 0x50
peripheralDetectionTimeout = 10000 (10s)

Could you tell me what happened for disabling time-out.

Re: Conditions for disabling time-out detection

BlackNight — Thu, 27 Jul 2017 05:33:01 GMT

Hi Masahiro,

if you call the bootloader explicitly from your application, there is no timeout. So if you call the bootloader from your application, it stays in the bootloader until you do a reset.

Timeout is only used if bootloader is entered automatically after reset.

See other details in Getting Started: ROM Bootloader on the NXP FRDM-KL03Z Board | MCU on Eclipse .

I hope this helps,

Erich

Re: Conditions for disabling time-out detection

masahirokiniwa — Thu, 27 Jul 2017 21:26:13 GMT

Hi Erich

Thank you for your answer.

I saw a reason of this case.

Best regards,

M.Kiniwa