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TUSB9261DEMO: Does Boot Loader control (turn on/off) any LEDs (GIO0-GIO7) on the EVM board?

Amy Liu
Intellectual 260 points
Part Number: TUSB9261DEMO

Hi,

I noticed that after the firmware was erased, LEDs (D1, D2, D4, D5, D7, D8) that are controlled by GIOs on the EVM board dimmed (not bright). They went off when SPI flash finished reprogramming (in firmware, code to control GIOs were commented out). D3 and D6 were on brightly. Does the Boot Loader control any GIOs during this erase/reprogram process?

Thanks,

Amy

  • 0
    TI__Genius 11255 points
    Hello Amy,

    The GPIOs will not change during erase/reprogram process.

    If the EEPROM is empty you will see D3 and D6 ON. If the firmware is loaded and running you will see D8 and D3 ON and D6 blinking (using latest firmware 1.05).

    Regards,
    Roberto