Hi,
Some time ago i've uploaded the S32k3_wb_f26 example to the whiteboard. It worked! I could press buttons to toggle sleep mode. But then I pressed the wrong button(s). And now I can't wake up my whiteboard ( S32K344-WB)
My board looked like this; for the jumpers. You can also check the led on the board.
If I measure the FS26_VLDO1 on J7 (pin2), I get 5.0v(So the FS26 is powering LDO1).
When removing the Jumper on J89. The following lights up
But then the MCU reset(JTAG_RST(PTA5_MCU_RESETB)) keeps high. Even when pulled low(by pressing the SW1 btn)?
When measuring RSTB on the FS26 its at a low level; same as for the FS0B, which states it is in error mode? (nr off errors exceeds allowed number of errors).
As long as VDD_HV_A is connected to FS26_VLDO1, D11 is off.
I'm afraid that VDD_HV_A consumes too much current (maybe S32K3 is damaged), causing the FS26_VLDO1 voltage to drop and D11 to turn off.
It is recommended to measure the FS26_VLDO1 voltage. Or measure the current consumed by VDD_HV_A through J89 to see if it is too large.
Hi
Please read the description of this demo application. Connect the wires as described below.
1. STANDBY mode or LPOFF mode test?
2. After power-on, MCU is normal running. Then user need push button SW3(WB) to trigger entry of Standby mode or LPOFF mode depending on MACRO definition.
If you do not press SW3, what is the status of LED1(D28 PTF8) and LED2(D29 PTF9)?
I see that the program turns off LED1(D28 PTF8) and LED2(D29 PTF9) to indicate MCU enters Standby only after pressing SW3.
3. Did you apply 12v and then turn on the switch SW10?
4. Strange, I don't see D11 light up red. According to what you said, FS26_VLDO1 has measured 5V from J7 or J89.
5. Do not remove J89, this power the VDD_HV_A which is used to support standby mode.
Best Regards,
Robin
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1. I was testing Standby mode.
2. LED1(D28 PTF8) and LED2(D29 PTF9) are always off. Even when rebooting.
3. Yes, ive got an 12V 1A power supply. (i dont turn on the HB200X)
4. When measuring pin 2 of J7 i get 5V.
TP2 does generate an interrupt.
As long as VDD_HV_A is connected to FS26_VLDO1, D11 is off.
I'm afraid that VDD_HV_A consumes too much current (maybe S32K3 is damaged), causing the FS26_VLDO1 voltage to drop and D11 to turn off.
It is recommended to measure the FS26_VLDO1 voltage. Or measure the current consumed by VDD_HV_A through J89 to see if it is too large.
Yea you're right...
VCC2_5V0 is pulling 0.8A. And the FS26 gets really hot.
thnx for the help.
