TMS570LS1224: CAN bootloader too slow

Suresh Jayagondar1

Part Number: TMS570LS1224

Hi,

I am using SafetyMCU_Bootloader code with small modifications to test boot loading capability on Hercules launch pad(TMS570LS1224) using CAN. Using PCAN adapter and custom PC side application to transfer the data.

Problem:

1. Taking a long time to download the entire code (almost 2 hour to download 200-300MB of example code)

Fapi_issueProgrammingCommand is programming 16 bytes at a time. Tried to program more number of bytes at a time and got Fapi_Error_AsyncIncorrectDataBufferLength Error. I am not sure what are the best ways to increase the speed. Please help in understanding this better.

Regards

Suresh J

over 5 years ago

0 QJ Wang over 5 years ago

TI__Guru**** 196346 points

Hello Suresh,

The number of bytes (in Fapi_issueProgrammingCommand) is 16 bytes since the width of the flash bank is 128 bit.

In bootloader example, the flash write function is called after one CAN transaction (8 bytes). You can define a big buffer (for example 1024 Bytes as used in UART bootloader), and copy the received CAN data to this buffer first, then call flash API to program those data when the buffer is full.

0 Suresh Jayagondar1 over 5 years ago in reply to QJ Wang

Prodigy 220 points

Thanks !

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TMS570LS1224: CAN bootloader too slow