git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6672 35acf78f-673a-0410-8e92-d51de3d6d3f4

os/hal/ports/STM32/LLD/sdc_lld.h

@@ -82,7 +82,14 @@
  * @brief   Read timeout in milliseconds.
  */
 #if !defined(STM32_SDC_READ_TIMEOUT_MS) || defined(__DOXYGEN__)
-#define STM32_SDC_READ_TIMEOUT_MS           5
+#define STM32_SDC_READ_TIMEOUT_MS           25
+#endif
+
+/**
+ * @brief   Card clock activation delay in milliseconds.
+ */
+#if !defined(STM32_SDC_CLOCK_ACTIVATION_DELAY) || defined(__DOXYGEN__)
+#define STM32_SDC_CLOCK_ACTIVATION_DELAY    10
 #endif
 
 /**

os/hal/src/sdc.c

@@ -200,6 +200,9 @@ bool sdcConnect(SDCDriver *sdcp) {
   /* Card clock initialization.*/
   sdc_lld_start_clk(sdcp);
 
+  /* Clock activation delay.*/
+  osalThreadSleep(MS2ST(STM32_SDC_CLOCK_ACTIVATION_DELAY));
+
   /* Enforces the initial card state.*/
   sdc_lld_send_cmd_none(sdcp, MMCSD_CMD_GO_IDLE_STATE, 0);