enable continuous read mode for onboard flash#785
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A-Dunstan wants to merge 1 commit intoPaulStoffregen:masterfrom
Open
enable continuous read mode for onboard flash#785A-Dunstan wants to merge 1 commit intoPaulStoffregen:masterfrom
A-Dunstan wants to merge 1 commit intoPaulStoffregen:masterfrom
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This speeds up read operations for the external flash chip by enabling continuous read mode; successive read commands don't need to send the 0xEB command byte which saves 8 FlexSPI clock cycles for every read.
The 0xFF command is used to turn off continuous reading to allow other flash commands to be issued, taken from the Winbond flash datasheet: "It is recommended to input FFh on IO0 for the next instruction (8 clocks), to ensure M4 = 1 and return the device to normal operation."