Hello @yassinechamam,
For such a scenario, we offer inside our MBDT for BMS 1.1.0 release an example, k344bmu_read_s32ct which handles 4 x MC33775 over TPL.
However, there are a couple of places in which you have to make some changes to achieve communication with a different number of BCCs.
1. Configuration tools project:
First, you have to go to S32CT/EB tresos, and for this, please open any MBDT block and press the Configure... button.
Go to Bms_common, and under the BMSCommon Driver configuration, and PHY-AFE Network configuration, you have to specify the number of Devices here, in your case, 2. TPL3_CMU_1 stands for MC33775 while the TPL3_CMU_2 stands for MC33774.

2. Change the initialization sequence
In the model, you have to go to the Initialize function, and under INIT_775a, to only change the Max DeviceNumber. The construction here is automatically performing the Wakeup and Enumeration for the selected number of devices.

Of course, inside the model, you have to adjust your application to handle the correct number of devices. In this case, the state machine only iterates through the numbers 1 to 4 so the state machine needs to be adjusted to fill your requirements.

Hope this helps,
Marius