boards: enable NuttX SPI DMA buffers

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- update to NuttX with stm32f4 and stm32f7 SPI DMA internal buffers
 - remove explicit DMA buffer allocations from new IMU drivers
 - restore original BOARD_DMA_ALLOC_POOL_SIZE
 - decrease SPI DMA thresholds based on fmu-v2/v3/v4/v5 bench testing

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This commit is contained in:

Daniel Agar

2020-03-22 19:24:26 -04:00

committed by GitHub

parent b73ec18abb

commit 8738c26426

57 changed files with 232 additions and 343 deletions

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platforms/nuttx/NuttX/nuttx

Submodule platforms/nuttx/NuttX/nuttx updated: befe53e7f1...9d00617188