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| author | jacqueline <me@jacqueline.id.au> | 2023-09-05 10:12:15 +1000 |
|---|---|---|
| committer | jacqueline <me@jacqueline.id.au> | 2023-09-05 10:12:15 +1000 |
| commit | 02c1eb4be35559c127368d1419ebb79e9f23f3c3 (patch) | |
| tree | 10be21d2cfbb9130644e00d70b4f573106932036 /src/drivers/spi.cpp | |
| parent | 0032896251d8ddc6c2775495445da8fceffba98e (diff) | |
| download | tangara-fw-02c1eb4be35559c127368d1419ebb79e9f23f3c3.tar.gz | |
Tweak display DMA buffer size
Diffstat (limited to 'src/drivers/spi.cpp')
| -rw-r--r-- | src/drivers/spi.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/drivers/spi.cpp b/src/drivers/spi.cpp index b31d1460..93bf9cde 100644 --- a/src/drivers/spi.cpp +++ b/src/drivers/spi.cpp @@ -35,12 +35,10 @@ esp_err_t init_spi(void) { .data7_io_num = -1, // Use the DMA default size. The display requires larger buffers, but it - // manages its down use of DMA-capable memory. - .max_transfer_sz = 128 * 16 * 2, // TODO: hmm + // manages its own use of DMA-capable memory. + .max_transfer_sz = 4096, .flags = SPICOMMON_BUSFLAG_MASTER | SPICOMMON_BUSFLAG_IOMUX_PINS, .intr_flags = ESP_INTR_FLAG_LOWMED | ESP_INTR_FLAG_IRAM, - //.intr_flags = ESP_INTR_FLAG_LOWMED | ESP_INTR_FLAG_SHARED | - // ESP_INTR_FLAG_IRAM, }; if (esp_err_t err = spi_bus_initialize(kSpiHost, &config, SPI_DMA_CH_AUTO)) { |