topic Re: KEA128 boot in Kinetis Microcontrollers

KEA128 boot

fupeng — Fri, 24 Nov 2017 15:52:50 GMT

I'm using keil5 to develop KEA128 chip, I want to know how to do the boot software and app software.Can you help me?

Re: KEA128 boot

miduo — Wed, 29 Nov 2017 07:18:19 GMT

Hi,

Please let me know what KEA128 board you used? The NXP board or your customer board?

Re: KEA128 boot

fupeng — Wed, 29 Nov 2017 07:28:58 GMT

Hi,

It's our customer board.

I find some other IDE's bootloader project.I know how to jump from bootloader to application.But how to set the interrupt vector in the application?

Re: KEA128 boot

mjbcswitzerland — Wed, 29 Nov 2017 20:50:44 GMT

There are also KEA128 boot loaders here:
http://www.utasker.com/kinetis/TRK-KEA128.html
http://www.utasker.com/kinetis/FRDM-KEAZ128Q80.html

A guide to application/ bootloader compatibility can be found in the appendix of its user's guide:
http://www.utasker.com/docs/uTasker/uTaskerSerialLoader.PDF

To enter interrupt sat the application there are two methods:
- leave in Flash and set the VBA to the flash location (must be on a 256 byte boundary for KEA128)
- enter in SRAM and set the VBA to the SRAM address (same alignment requirement).

In the uTasker project RAM based vectors are entered with (for example):
fnEnterInterrupt(irq_I2C0_ID, PRIORITY_I2C0, _I2C_Interrupt_0);

Free Open Source solution at http://www.utasker.com/kinetis.html with KEA128 simulation for turn-key KEA128 solution, including Keil uVision5 project.

Regards

Mark