kopia lustrzana https://github.com/micropython/micropython
esp8266/machine_hspi: After an SPI write wait for last byte to transfer.
Because otherwise the function can return with data still waiting to be clocked out, and CS might then be disabled before the SPI transaction is complete. Fixes issue #3487.pull/3422/merge
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@ -65,6 +65,9 @@ STATIC void machine_hspi_transfer(mp_obj_base_t *self_in, size_t len, const uint
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spi_tx8fast(HSPI, src[i]);
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++i;
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}
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// wait for SPI transaction to complete
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while (spi_busy(HSPI)) {
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}
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} else {
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// we need to read and write data
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