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Hotfix to not use DMA on SPI3 of ESP32-S2

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See issue #2343.
This commit is contained in:
LennartF22 2024-10-10 02:06:51 +02:00
parent b7f830f64e
commit 9ee947e9b0
1 changed files with 10 additions and 2 deletions
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12
lib/SpiManager/src/SpiBus.cpp
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@ -18,11 +18,19 @@ SpiBus::SpiBus(const std::string& _id, spi_host_device_t _host_device)
.data5_io_num = -1,
.data6_io_num = -1,
.data7_io_num = -1,
.max_transfer_sz = SPI_MAX_DMA_LEN,
.max_transfer_sz = 0, // defaults to SPI_MAX_DMA_LEN (=4092) or SOC_SPI_MAXIMUM_BUFFER_SIZE (=64)
.flags = 0,
.intr_flags = 0
};
ESP_ERROR_CHECK(spi_bus_initialize(host_device, &bus_config, SPI_DMA_CH_AUTO));
#if !CONFIG_IDF_TARGET_ESP32S2
spi_dma_chan_t dma_channel = SPI_DMA_CH_AUTO;
#else
// DMA for SPI3 on ESP32-S2 is shared with ADC/DAC, so we cannot use it here
spi_dma_chan_t dma_channel = (host_device != SPI3_HOST ? SPI_DMA_CH_AUTO : SPI_DMA_DISABLED);
#endif
ESP_ERROR_CHECK(spi_bus_initialize(host_device, &bus_config, dma_channel));
}
SpiBus::~SpiBus()