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APort · 2024-03-20

Hello,We are trying to use MTU larger than 24X bytes.The characteristic size set to 483 bytes (CFG_BLE_MAX_ATT_MTU).We tried to use aci_gatt_update_char_value_ext to set the value (as the HCI layer is limited to 255 bytes transfer).aci_gatt_update_ch...

APort · 2024-03-20

Hello,Apparently COC channel can send no more than one packet (MPS) per connection interval.Trying to end more will result in BLE_STATUS_INSUFFICIENT_RESOURCESThis seems to be a bug since GATT (on same exact setup) can do at least 2, resulting in muc...

APort · 2023-09-03

Hello,We are having an issue updating the BLE FW v1.13.3 to 1.17.2 using FUS 1.2.0.Everything is working as expected until (after SHCI_C2_FUS_FwUpgrade(0, 0)) we are polling for SHCI_C2_FUS_GetState()At first, its FUS_STATE_VALUE_FW_UPGRD_ONGOING as ...

APort · 2022-08-16

Hello,We are running STM32WB RTC block from LSE.Usually it works as expected (hours at a time).One in a while, the RTC->SSR resister jumps back (up as it is a countdown reg) couple of ticks (~100 ticks) and continues from the same point as normal.It ...

APort · 2022-02-14

Hello,We have an issue updating the stack programmatically.Following the AN5185 (section 2.1) we put the new stack binary (stm32wb5x_BLE_Stack_full_fw_1.13.1.bin) at 0x0809A000 - 45 sectors before 0x080C7000 (stack start for 1mb model) - trying to u...

APort · 2024-06-20

Hello JLee,Have you found a solution to this? We are bashing our heads on this issue too. Explicitly setting hci_le_set_data_length to 251 will result in hci_le_data_length_change_event->MaxRxOctets = 27Both sides support data length extension, we ve...

APort · 2023-09-03

Update:We tried the same update using the BLE_OTA and STs android app on Nucleo board - with similar result. The app thinks everything alright, but after restart its the old stack version (it doesn't even check SHCI_FUS_GetState_ErrorCode_t).Also sam...

APort · 2022-08-16

I explicitly disabled all interrupts in the test code, so probably not.

APort · 2022-08-16

1) You are right about the PRER, tried writing RTC->PRER in two stages; it made no change (for the issue).2) This morning I run the minimal code on PNucleo-WB55 with exactly the same result. so its not our board or even chip package as we use the WLC...

APort · 2022-08-16

One thing I noticed, is that changing the loop to the following (adding small busy-wait delay) "solves" it...I wonder if its something intentional or undocumented limitation.In case of the later, its pretty bad news as in system with multiple element...

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aci_gatt_update_char_value_ext issue

L2CAP (COC) sends one packet per connection interval

STM32WB OTA FUS_STATE_ERROR_IMG_NOT_AUTHENTIC

STM32WB55 RTC SRR register sometimes not monotonical

SHCI_C2_FUS_FwUpgrade usage

Re: how to change max TX octets in BLE link layer TX packet?

Re: STM32WB OTA FUS_STATE_ERROR_IMG_NOT_AUTHENTIC

Re: STM32WB55 RTC SRR register sometimes not monotonical

Re: STM32WB55 RTC SRR register sometimes not monotonical

Re: STM32WB55 RTC SRR register sometimes not monotonical