Bridging module, data transmission system, and data transmission method

A data transmission system, comprising:

• a master device;
• a slave device;
• and
• a bridging module, coupled between the master device and the slave device, wherein:
• the bridging module obtains a first read request, wherein the first read request comprises a first master transaction identifier;
• the bridging module allocates a first data storage space for first return data corresponding to the first read request according to the first master transaction identifier, and combines the first master transaction identifier and an address of the first data storage space as a first slave transaction identifier of the first read request;
• the bridging module sends the first read request to the slave device;
• the bridging module obtains a second read request, wherein the second read request comprises the first master transaction identifier;
• the bridging module allocates a second data storage space for second return data corresponding to the second read request according to the first master transaction identifier, and combines the first master transaction identifier and an address of the second data storage space as a second slave transaction identifier of the second read request, wherein the first data storage space is adjacent to the second data storage space, and the first data storage space is in front of the second data storage space;
• and
• the bridging module sends the second read request to the slave device.

A data transmission method, comprising:

• obtaining a first read request, wherein the first read request comprises a first master transaction identifier;
• allocating a first data storage space for first return data corresponding to the first read request according to the first master transaction identifier, and combining the first master transaction identifier and an address of the first data storage space as a first slave transaction identifier of the first read request;
• sending the first read request to a slave device;
• obtaining a second read request, wherein the second read request comprises the first master transaction identifier;
• allocating a second data storage space for second return data corresponding to the second read request according to the first master transaction identifier, and combining the first master transaction identifier and an address of the second data storage space as a second slave transaction identifier of the second read request, wherein the first data storage space is adjacent to the second data storage space, and the first data storage space is in front of the second data storage space;
• and
• sending the second read request to the slave device.