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EK-TM4C123GXL: I2C + uDMA

Jacky Wang43
Prodigy 245 points
Part Number: EK-TM4C123GXL

Hi,

Is TM4C123 capable of DMA on I2C? I did not find it in the documentation but I do see I2C_MASTER_INT_TX_DMA_DONE and I2C_MASTER_INT_RX_DMA_DONE and the same for slave in i2c.h

Regards,

Jacky

  • 0
    TI__Guru 72500 points
    No the TM4C123 devices do not have uDMA channels assigned to the I2C peripherals. The TM4C129 devices do. The i2c.h file is for both families and the I2C_MASTER_INT_TX_DMA_DONE and I2C_MASTER_INT_RX_DMA_DONE defines are for the TM4C129 devices only.