About TWood.4

TWood.4 · 2023-09-25

I am using LPTIM1 of an STM32WB55 to read the outputs of a quadrature encoder.If I disconnect either of the two inputs, the timer continues to increment or decrement.Is there any way to stop the counter changing value when one of the in puts is missi...

TWood.4 · 2023-09-18

UM2305 refences this document:AN5893, X-CUBE-STL functional safety package: advanced topics I can't seem to find it anywhere. Any suggestions?

TWood.4 · 2023-09-07

I'm using a WB55 with IWDG enabled. I want to disable The IWDG when the device is in Standby mode. I have cleared the IWDGSTDBY bit using STM32CubeProgrammer, but I still get resets from the IWDG.What am I doing wrong?

TWood.4 · 2022-12-05

I'm trying to start up CPU2 on an STM32WB55. I've looked at various examples and I seem to be doing all the right things. SHCI_C2_BLE_Init returns 0xFF in payload[0] which corresponds to SHCI_FUS_CMD_NOT_SUPPORTEDI have FUS V1.2.0.0 installed and the...

TWood.4 · 2022-11-02

TWood.4 · 2023-10-06

If one of the inputs is not changing state then the counter should increment on one edge and then decrement on the other.What I'm seeing is the counter counting either up or down according to which input is driven. What I'm seeing is the counter ...

TWood.4 · 2023-09-26

Ah OK. RM0434 Rev 12 (WB55 Reference Manual) Says on P164 : Independent watchdog (IWDG): the IWDG is started by writing to its Key register or byhardware option. Once started it cannot be stopped except by a Reset.

TWood.4 · 2023-09-21

I have tried both STOP and STANDBY modes with the IWDGSTOP and IWDG_STDBY bits cleared in the flash option bytes register. Reading back the register at 0x1FFF8000 gives 0x39F9F1AA - which confirms that both bits are cleared. (Table 9 from WB55 refere...

TWood.4 · 2023-09-07

Those are the settings I currently have.

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Detecting Missing Encoder Input

AN5893

Disabling IWDG In Standby

SHCI_C2_BLE_Init Fails

I'm trying to get wakeup from STOP mode on a P-NUCLEO-WB55 using the example project PWR_STOP1. It stops OK, but isn't woken up by a button push. I confirmed that the button push was generating interrupts. Any suggestions?

Re: Detecting Missing Encoder Input

Re: Disabling IWDG In Standby

Re: Disabling IWDG In Standby

Re: Disabling IWDG In Standby