document the pycom_config_block_t layout

peter-pycom · peter-pycom · commit 873040cccfee · 2020-03-25T17:13:25.000+01:00
diff --git a/esp32/pycom_config.h b/esp32/pycom_config.h
@@ -110,19 +110,20 @@ typedef struct {
 } pycom_pybytes_lte_config_t;
 // pycom_pybytes_lte_config_t is the last used member of pycom_config_block_t, so no _Static_assert(sizeof()) needed
 
-typedef struct {
-    pycom_lpwan_config_t lpwan_config;
-    pycom_wifi_config_t wifi_config;
-    pycom_wifi_sta_config_t wifi_sta_config;
-    pycom_rgbled_config_t rgbled_config;
-    pycom_pybytes_config_t pybytes_config;
-    pycom_wdt_config_t wdt_config;
-    pycom_lte_config_t lte_config;
-    pycom_config_t pycom_config;
-    pycom_wifi_ap_config_t wifi_ap_config;
-    pycom_pybytes_lte_config_t pycom_pybytes_lte_config;
-    uint8_t pycom_reserved[112];
-} pycom_config_block_t;
+typedef struct {                                         // size
+    pycom_lpwan_config_t lpwan_config;                   //   53
+    pycom_wifi_config_t wifi_config;                     //    1
+    pycom_wifi_sta_config_t wifi_sta_config;             //   98
+    pycom_rgbled_config_t rgbled_config;                 //   10
+    pycom_pybytes_config_t pybytes_config;               //  348
+    uint8_t pycom_unused[2];                             //    2 since wdt_config has 4byte-alignment, there are currently two bytes of padding before it
+    pycom_wdt_config_t wdt_config;                       //    8 since wdt_config contains a uint32_t, it has 4byte-alignment
+    pycom_lte_config_t lte_config;                       //    1
+    pycom_config_t pycom_config;                         //   15
+    pycom_wifi_ap_config_t wifi_ap_config;               //   98
+    pycom_pybytes_lte_config_t pycom_pybytes_lte_config; //  278
+    uint8_t pycom_reserved[112];                         //  112
+} pycom_config_block_t;                                  // 1024
 _Static_assert(sizeof(pycom_config_block_t) == 1024, "pycom_config_block_t should have a size of 1024 bytes"); // partition is 4Kb, I think multiples of 1Kb <= 4Kb are ok
 
 typedef enum
