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lastMcu · 2024-07-24

HCI_GetWirelessFwInfo seems to return the wrong VersionReleaseType. The result I get is type 0x02, that according to shci.h is: INFO_STACK_TYPE_BLE_HCI. Which should mean that the BLE stack currently flashed it the HCI only layer. But everything indi...

lastMcu · 2024-07-16

There doesn't seem to be any project in the whole STM32CubeWB package that uses the HSE with PLL. At least I couldn't find any with a .IOC file. Most samples in the package use the MSI clock, except, of course, for the wireless projects that use HSE ...

lastMcu · 2021-01-25

I found that STM32F4 timers might count incorrectly until first update event if using a prescaler. I can consistently reproduce this with multiple general purpose timers in a least two different STM32F4 variants, a STMF32407 and a STM32F429.Is this a...

lastMcu · 2021-01-04

The documentation notes that FT pins are not 5V tolerant when the output is enabled because that would produce a direct short cut between VDD and 5V.But what happens when there is an external 5V pullup? Is it ok to use push-pull (not open drain) outp...

lastMcu · 2024-07-23

@STTwo-32 wrote:Hello @lastMcu I suggest you take a look at this example stm32-hotspot/WB55Gimbal-6steps: An example demonstrating how to spin a gimbal motor using STM32WB55 and ST's MCSDK v6 sensorless six-step algorithm (github.com).Best Regards.ST...

lastMcu · 2024-07-19

@Remy ISSALYS wrote:You can find BLE_HeartRate_PLL example in STM32CubeWB package witch used the PLL as system clock.Are you sure it uses the PLL as system clock? I can see that the PLL is configured to use HSE. But I don't see that the PLL is connec...

lastMcu · 2021-01-25

I think I found the issue. It is the normal behavior that the prescaler doesn't take effect until the next event "if changed on the fly". But seems that even if you change it not on the fly, while the counter is not enabled, the new prescaler still t...

lastMcu · 2021-01-08

Of course. But in this case we don't control the external pullup. The pull-up is external to our design.

lastMcu · 2021-01-08

I wasn't aware about this issue. I find it in the datasheet now. Thanks for the tip. In this case is not a problem because I'm not using ADC. And if I read the datasheet correctly, there is no injected current as long as the pin is FT 5V tolerant.

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HCI_GetWirelessFwInfo returns wrong VersionReleaseType?

HSE with PLL for STM32WB at 64MHZ

STM32F4 timer wrong prescaler behavior until first event after reset

It is ok to enable push-pull output with an external pullup to 5V?

Re: HSE with PLL for STM32WB at 64MHZ

Re: HSE with PLL for STM32WB at 64MHZ

Re: STM32F4 timer wrong prescaler behavior until first event after reset

Re: It is ok to enable push-pull output with an external pullup to 5V?

Re: It is ok to enable push-pull output with an external pullup to 5V?