LAUNCHXL-F28P65X: The conditions under which the DMA_DONE_RIS (ESC DMA Done Raw Interrupt Status Register) will be set.

wen weiling

Part Number: LAUNCHXL-F28P65X

The DMA done flag(DMA_DONE_RIS) is not set after I trigger the DMA to complete the data transfer using sync0/sync1 signals.So, I would like to ask under what circumstances will this flag be set?

3 个月前

0 Vivian Gao 3 个月前

TI__Mastermind 37140 points

您在哪里看到的DMA_DONE_RIS

0 wen weiling 3 个月前回复 Vivian Gao

Prodigy 20 points

0 Vivian Gao 3 个月前回复 wen weiling

TI__Mastermind 37140 points

我们需要时间看一下，有结果会回复到本贴。

0 wen weiling 3 个月前回复 Vivian Gao

Prodigy 20 points

thank you for your help

0 Vivian Gao 3 个月前回复 wen weiling

TI__Mastermind 37140 points

There isn't much documentation about this register bit, as you've probably noticed. I'll need to track down more information about it and get back to you later.

Can you tell me if IRQ_RIS, SYNC0_RIS, or SYNC1_RIS are getting set during your tests? Also, you have verified the DMA is indeed getting triggered by SYNC0/1 and transfer is completing?

您可能已经注意到，关于这个寄存器位的文档并不多。我需要找到更多关于它的信息，稍后给你回复。
你能告诉我在测试过程中是否设置了IRQ_RIS、SYNC0_RIS或SYNC1_RIS吗？此外，您已经验证DMA确实是由SYNC0/1触发的，并且传输正在完成吗？

0 Vivian Gao 3 个月前回复 Vivian Gao

TI__Mastermind 37140 points

我现在有答案了。DMA_DONE_RIS似乎特定于F2838x设备上的CMμDMA。因此，它应该从只有C28x内核的F28P65x设备中删除。

0 wen weiling 3 个月前回复 Vivian Gao

Prodigy 20 points

You're welcome! I'm glad that my response answered your question.

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LAUNCHXL-F28P65X: The conditions under which the DMA_DONE_RIS (ESC DMA Done Raw Interrupt Status Register) will be set.