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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2020/06/05 20:05:32 UTC
[GitHub] [incubator-nuttx] davids5 opened a new pull request #1204: Master pr h7 spi6 bdma
davids5 opened a new pull request #1204:
URL: https://github.com/apache/incubator-nuttx/pull/1204
## Summary
This enables BDMA on the the STM32H7 SPI6 channel.
## Impact
Dependent on https://github.com/apache/incubator-nuttx/pull/1203 to actually work. But will not break the build without it.
## Testing
see https://github.com/apache/incubator-nuttx/pull/1203
```
****************************************************************************/
@@ -146,6 +148,28 @@ int stm32_bringup(void)
+ static struct spi_dev_s *spidev;
+ spidev = stm32_spibus_initialize(6);
+ SPI_SETFREQUENCY(spidev, 1000000);
+ SPI_SETMODE(spidev, 3);
+ SPI_SETBITS(spidev, 8);
+ SPI_SELECT(spidev, 0, true);
+ uint8_t send[100];
+ uint8_t recv[100];
+ for (int i = 0; i < 100; i++)
+ {
+ send[i] = i;
+ recv[i] = i;
+ }
+ /* do the transfer */
+ SPI_EXCHANGE(spidev, send, recv, 100);
+
+ /* and clean up */
+ SPI_SELECT(spidev, 0, false);
+
```
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[GitHub] [incubator-nuttx] xiaoxiang781216 merged pull request #1204: STM32H7 Use BDMA on SPI6
Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 merged pull request #1204:
URL: https://github.com/apache/incubator-nuttx/pull/1204
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