CMD_RESPONSE_ts Struct Reference

Holds the R1, R3, and R7 response bytes returned by the SD card after a command. More...

Public Attributes
uint8_t	r1
uint8_t	r3 [4]
uint8_t	r7 [4]

Detailed Description

Holds the R1, R3, and R7 response bytes returned by the SD card after a command.

Every SD command returns at least an R1 byte. Some commands additionally return a 4-byte trailing payload: R3 (OCR content, from CMD58) or R7 (interface condition, from CMD8). Unused fields are zeroed by sd_send_cmd.

Definition at line 39 of file sd.c.

Member Data Documentation

r1

uint8_t CMD_RESPONSE_ts::r1

R1 response byte. Bit 0 = idle state, bits 1-6 = error flags.

Definition at line 40 of file sd.c.

r3

uint8_t CMD_RESPONSE_ts::r3[4]

R3 trailing bytes (OCR register content). Valid after CMD58.

Definition at line 41 of file sd.c.

r7

uint8_t CMD_RESPONSE_ts::r7[4]

R7 trailing bytes (interface condition echo). Valid after CMD8.

Definition at line 42 of file sd.c.

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The documentation for this struct was generated from the following file:

• core/src/sd.c