Always reset board due to SBC FS26 based on s32k358 evb board

BillWen

Hi Everyone:

Environment : RD-K358BMU board

Project : Integration project

Recently, I need to implement PWM function by IC MC33HB2000, and I found out that the MC33HB2000 ENBL pin is related to SBC FS1B & FS0B pin, according to the following figure, and I check the FS1B and FS0B will be low, then I figure out the FS26 always be debug mode due to the switch on the EVB board, and I try to off the switch make FS26 don't enter debug mode bug this behavior would make device always reset

What should I do or modify some configuration can make FS26 work in normal mode?

Thanks

BR, BillWen

ErikaC

Hello,

To enter normal mode, see Leave debug mode Section 6.1.2 of the RD-K358BMU User Guide.

The following are the options to leave debug mode. Make sure SW2 is in OFF position.
1. To leave debug mode BMU power supply (T30) must be disconnected and connected again. Actual SBC state can be checked in FS_STATES register via SPI.
2. Request to leave debug mode can be entered into SBC FS_STATES register via SPI.

Hope this helps.

View solution in original post

ErikaC

Hello,

To enter normal mode, see Leave debug mode Section 6.1.2 of the RD-K358BMU User Guide.

The following are the options to leave debug mode. Make sure SW2 is in OFF position.
1. To leave debug mode BMU power supply (T30) must be disconnected and connected again. Actual SBC state can be checked in FS_STATES register via SPI.
2. Request to leave debug mode can be entered into SBC FS_STATES register via SPI.

Hope this helps.

BillWen

Hi ErikaC:

I already fixed it, switch the device to Normal mode on EVB board, also need remove reset pin related watch dog setting, then device can work in normal mode.

Thanks for help
BR, BillWen