diff options
| -rw-r--r-- | stmhal/sdcard.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/stmhal/sdcard.c b/stmhal/sdcard.c index a628d3e450..63a0bac96e 100644 --- a/stmhal/sdcard.c +++ b/stmhal/sdcard.c @@ -105,10 +105,13 @@ bool sdcard_power_on(void) { sd_handle.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE; sd_handle.Init.ClockDiv = SDIO_TRANSFER_CLK_DIV; - // init the SD interface + // init the SD interface, with retry if it's not ready yet HAL_SD_CardInfoTypedef cardinfo; - if (HAL_SD_Init(&sd_handle, &cardinfo) != SD_OK) { - goto error; + for (int retry = 10; HAL_SD_Init(&sd_handle, &cardinfo) != SD_OK; retry--) { + if (retry == 0) { + goto error; + } + HAL_Delay(50); } // configure the SD bus width for wide operation |