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bugfix(flash): improve flash dio read timing

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When flash work in DIO Mode, in order to ensure the fast read mode of flash
is a fixed value, we merged the mode bits into address part, and the fast
read mode value is 0 (the default value).
This commit is contained in:
chenjianqiang
2019-05-20 15:26:52 +08:00
parent 801f5d6e82
commit d68f1907ef
4 changed files with 10 additions and 5 deletions
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3
components/esp_rom/include/esp32/rom/spi_flash.h
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@@ -90,7 +90,8 @@ extern "C" {
#define SPI0_R_QIO_DUMMY_CYCLELEN 3
#define SPI0_R_QIO_ADDR_BITSLEN 31
#define SPI0_R_FAST_DUMMY_CYCLELEN 7
#define SPI0_R_DIO_DUMMY_CYCLELEN 3
#define SPI0_R_DIO_DUMMY_CYCLELEN 1
#define SPI0_R_DIO_ADDR_BITSLEN 27
#define SPI0_R_FAST_ADDR_BITSLEN 23
#define SPI0_R_SIO_ADDR_BITSLEN 23