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Merge pull request #77 from kbob/DMA-LC-2

Corrected DMA destination size on Teensy LC's destinationCircular met…
teensy4-core
Paul Stoffregen 7 years ago
parent
commit
1abe4b01b2
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1 changed files with 2 additions and 2 deletions
  1. +2
    -2
      teensy3/DMAChannel.h

+ 2
- 2
teensy3/DMAChannel.h View File

uint32_t mod = len2mod(len); uint32_t mod = len2mod(len);
if (mod == 0) return; if (mod == 0) return;
CFG->DAR = p; CFG->DAR = p;
CFG->DCR = (CFG->DCR & 0xF0F0F0FF) | DMA_DCR_DSIZE(1) | DMA_DCR_DINC
CFG->DCR = (CFG->DCR & 0xF0F0F0FF) | DMA_DCR_DSIZE(2) | DMA_DCR_DINC
| DMA_DCR_DMOD(mod); | DMA_DCR_DMOD(mod);
CFG->DSR_BCR = len; CFG->DSR_BCR = len;
} }
uint32_t mod = len2mod(len); uint32_t mod = len2mod(len);
if (mod == 0) return; if (mod == 0) return;
CFG->DAR = p; CFG->DAR = p;
CFG->DCR = (CFG->DCR & 0xF0F0F0FF) | DMA_DCR_DSIZE(1) | DMA_DCR_DINC
CFG->DCR = (CFG->DCR & 0xF0F0F0FF) | DMA_DCR_DSIZE(0) | DMA_DCR_DINC
| DMA_DCR_DMOD(mod); | DMA_DCR_DMOD(mod);
CFG->DSR_BCR = len; CFG->DSR_BCR = len;
} }

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