diff --git a/components/sdmmc/sdmmc_cmd.c b/components/sdmmc/sdmmc_cmd.c index fb18a9d69629..ccd854028722 100644 --- a/components/sdmmc/sdmmc_cmd.c +++ b/components/sdmmc/sdmmc_cmd.c @@ -264,7 +264,22 @@ esp_err_t sdmmc_send_cmd_set_relative_addr(sdmmc_card_t* card, uint16_t* out_rca if (err != ESP_OK) { return err; } - *out_rca = (card->is_mmc) ? mmc_rca : SD_R6_RCA(cmd.response); + + if (card->is_mmc) { + *out_rca = mmc_rca; + } else { + uint16_t response_rca = SD_R6_RCA(cmd.response); + if (response_rca == 0) { + // Try to get another RCA value if RCA value in the previous response was 0x0000 + // The value 0x0000 is reserved to set all cards into the Stand-by State with CMD7 + err = sdmmc_send_cmd(card, &cmd); + if (err != ESP_OK) { + return err; + } + response_rca = SD_R6_RCA(cmd.response); + } + *out_rca = response_rca; + } return ESP_OK; }