HCI_LE_TEST_END long response (BLE_TransparentMode - STM32WB55)

[sebachm94]

Hi, I'm trying to run BLE_TransparentMode on my STM32WB55VG for DTM purposes. I'm using FUS 1.2.0, Wireless Stack 1.13.2 (stm32wb5x_BLE_HCILayer_extended_fw), BLE_TransparentMode app 1.13.2. I'm building it in STM32CubeIde 1.8.0 with CubeMX 6.4.0, only thing I'm changing comparing to default config is USART-TX pin from PB7 to PA9 (in .ioc file). App works almost fine. It responds for most of the commands but there is a problem while performing TX test. HCI_LE_TRANSMITTER_TEST is sent and I got Command Complete as a result, then I'm trying to send HCI_LE_TEST_END and here is the problem. Response goes back after ~30sec, with Command Complete as result. The same app works fine for my Nucleo Board with STM32WB55 (with the same stack and FUS).

Can you help me figure it out what I could do wrong or where to debug?

BR, Sebastian