• State
  • Locked Locked
  • Replies 0 replies
  • Subscribers 84 subscribers
  • Views 214 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F28384D: Optimizing Data Transfer Between CPU1 and CM for Efficient Ethernet Communication

Madhavi Uppunuthula
Prodigy 40 points

Part Number: TMS320F28384D

Tool/software:

Hi,

We are using this Part.No TMS320F28384D. We are using CPU1 for the power control algorithm and CM for Ethernet communication.

We would like to have some advice regarding the transfer of data between CPU1 and CM.

We have incorporated an external RAM memory (SDRAM-Part No. AS4C32M16SB-7BIN) with CPU1 to store 600KB of critical data captured during system faults.

The objective is to transmit this data through Ethernet to another system for analysis, yet the Ethernet is solely accessible from CM.

Currently, We are utilizing the MSGRAM space to facilitate data transfer from CPU1 to CM. However, the MSGRAM is restricted to 2KB for CPU1toCM sharing, and with 1KB already allocated for other parameter transfers, only 1KB remains for transmitting the 600KB data.

This process significantly consumes time for both cores. Furthermore, there are additional control algorithms that require management during fault conditions. We are seeking recommendations for expeditiously transmitting as much data as feasible within a reduced timeframe.

Due to this limitation, we are unable to fully utilize the speed of Ethernet communication because the shared MSGRAM is becoming a bottleneck.

Additionally, We are inquiring whether it is possible to directly connect the RAM memory to CM and access the data for transfer. Any detailed suggestions or workarounds would be greatly appreciated.