STM32 RS485通讯 - 在2.5Mbps波特率下可以接收数据吗？

[caixf]

STM32F051C8T6产品，想用来和多摩川的编码器产品通讯，发送数据0x02，多摩川编码器发送6个字节返回。但用6个字节的中断得不到数据，用6个字节读取也无法得到数据。中断只能收到一个字节，02。有指导问题出在哪里了？

[Lina_DABASINSKAITE]

TRANSLATION: 
STM32 RS485 Communication - Can I receive data at 2.5Mbps baud rate?

STM32F051C8T6 product, I want to use it to communicate with Tamagawa's encoder product, send data 0x02, Tamagawa encoder sends 6 bytes back. But I can't get data with 6 bytes interrupt, and I can't get data with 6 bytes read. The interrupt can only receive a byte, 02. there is a guide to where the problem is?