About GG.2

GG.2 · 2023-10-15

Hello,According to the reference manual RM0456 7.3.3:"Prefetch is enabled by setting PRFTEN in FLASH_ACR.PRFTEN must be set only if at least one wait state is needed to access the flash memory" Compared to that I've seen that in the U5 HAL, in the fu...

GG.2 · 2023-10-01

Hello,I'm looking into the STM32U5 for an audio application.I have a microphone that works with I2S and I want to use it with the STM32U5 in a power efficient way.I've seen that the SAI peripheral can with with I2S but it can't stay on during STOP mo...

GG.2 · 2023-09-20

I've noticed that the frequencies written in the reference manual are different from the ones used in the HAL.Is there a good reason they are different? Which ones are correct?I attached a screenshot from page 407 of the reference manual.https://www....

GG.2 · 2023-05-14

Hello,I'm using the STM32WL55 for LoRa communication.I found out that when receiving a packet the RX IRQ from the transceiver is executed in a delay from when the packet finished transmitting.From my tests this delay depends on the channel configurat...

GG.2 · 2023-10-16

The problem is that I'm running my own code, not the examples, and the HAL should not assume the HCLK frequency... In my case I run at 12MHZ range 4 with 0 WS

GG.2 · 2023-10-01

To save power I wanted that the SAI will work with the LPDMA while the MCU is in STOP mode, and wakeup the MCU only after a batch of many samples is ready.I understand now that this is not possible

GG.2 · 2023-05-16

I'm still looking for help.Is this a known issue or am I the first to report it?Thank you

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User Activity

Enabling instruction prefetch in the HAL (potential bug)

STM32U5 low power audio with I2S

Mismatch between HAL and Reference Manual on voltage scale max frequencies

Delayed RX IRQ with STM32WL5x Transceiver with LoRa

Re: Enabling instruction prefetch in the HAL (potential bug)

Re: STM32U5 low power audio with I2S

Re: Delayed RX IRQ with STM32WL5x Transceiver with LoRa