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Code Issues Releases Wiki Activity

[spi] Implement octal mode (#8386)

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This commit is contained in:
Clyde Stubbs
2025-04-09 09:07:59 +10:00
committed by GitHub
parent 6240bfff97
commit a866370a2e
5 changed files with 88 additions and 56 deletions
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18
esphome/components/spi/spi_esp_idf.cpp
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@@ -211,11 +211,19 @@ class SPIBusHw : public SPIBus {
buscfg.data1_io_num = data_pins[1];
buscfg.data2_io_num = data_pins[2];
buscfg.data3_io_num = data_pins[3];
buscfg.data4_io_num = -1;
buscfg.data5_io_num = -1;
buscfg.data6_io_num = -1;
buscfg.data7_io_num = -1;
buscfg.flags |= SPICOMMON_BUSFLAG_QUAD;
if (data_pins.size() == 8) {
buscfg.data4_io_num = data_pins[4];
buscfg.data5_io_num = data_pins[5];
buscfg.data6_io_num = data_pins[6];
buscfg.data7_io_num = data_pins[7];
buscfg.flags |= SPICOMMON_BUSFLAG_OCTAL;
} else {
buscfg.data4_io_num = -1;
buscfg.data5_io_num = -1;
buscfg.data6_io_num = -1;
buscfg.data7_io_num = -1;
buscfg.flags |= SPICOMMON_BUSFLAG_QUAD;
}
}
buscfg.max_transfer_sz = MAX_TRANSFER_SIZE;
auto err = spi_bus_initialize(channel, &buscfg, SPI_DMA_CH_AUTO);