I'll give TFT_eSPI a try tomorrow as well.
From what I read, TFT_eSPI can bettter saturate the SPI bus. We'll see.
Some of these displays also have a parallel interface. You can bitbang 8-bit or 16-bit data in one go. However, that's not necessarily faster. And it eats an entire CPU, which also means more current draw.
Hardware SPI + DMA "should" be more power efficient, with similar perf.
Mario Zechner /
npub1h6…w5nvc
2024-09-02 23:51:16
in reply to nevent1q…la78
Author Public Key
npub1h6qmf9h2qfvfgf663q6xl7lh6gt63zr0zzqcteqp8pmy0mls3x6qsw5nvcPublished at
2024-09-02 23:51:16Event JSON
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"content": "I'll give TFT_eSPI a try tomorrow as well.\n\nFrom what I read, TFT_eSPI can bettter saturate the SPI bus. We'll see.\n\nSome of these displays also have a parallel interface. You can bitbang 8-bit or 16-bit data in one go. However, that's not necessarily faster. And it eats an entire CPU, which also means more current draw.\n\nHardware SPI + DMA \"should\" be more power efficient, with similar perf.",
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