STM32F1: SD EEPROM fallback (#17715)

.github/workflows/test-builds.yml

@@ -58,6 +58,7 @@ jobs:
         - ARMED
         - FYSETC_S6
         - malyan_M300
+        - mks_robin_lite
 
         # Put lengthy tests last
 
@@ -75,7 +76,6 @@ jobs:
         #- at90usb1286_cdc
         #- at90usb1286_dfu
         #- STM32F103CB_malyan
-        #- mks_robin_lite
         #- mks_robin_mini
         #- mks_robin_nano
 

Marlin/src/HAL/STM32/inc/Conditionals_post.h

@@ -22,6 +22,6 @@
 #pragma once
 
 // If no real EEPROM, Flash emulation, or SRAM emulation is available fall back to SD emulation
-#if ENABLED(EEPROM_SETTINGS) && NONE(USE_WIRED_EEPROM, FLASH_EEPROM_EMULATION, SRAM_EEPROM_EMULATION)
+#if USE_FALLBACK_EEPROM
   #define SDCARD_EEPROM_EMULATION
 #endif

Marlin/src/HAL/STM32/inc/SanityCheck.h

@@ -35,3 +35,11 @@
 #if ENABLED(FAST_PWM_FAN)
   #error "FAST_PWM_FAN is not yet implemented for this platform."
 #endif
+
+#if ENABLED(SDCARD_EEPROM_EMULATION) && DISABLED(SDSUPPORT)
+  #undef SDCARD_EEPROM_EMULATION // Avoid additional error noise
+  #if USE_FALLBACK_EEPROM
+    #warning "EEPROM type not specified. Fallback is SDCARD_EEPROM_EMULATION."
+  #endif
+  #error "SDCARD_EEPROM_EMULATION requires SDSUPPORT. Enable SDSUPPORT or choose another EEPROM emulation."
+#endif

Marlin/src/HAL/STM32F1/eeprom_sdcard.cpp

@@ -32,6 +32,7 @@
 #if ENABLED(SDCARD_EEPROM_EMULATION)
 
 #include "../shared/eeprom_api.h"
+#include "../../sd/cardreader.h"
 
 #ifndef E2END
   #define E2END 0xFFF // 4KB
@@ -41,44 +42,34 @@
 #define _ALIGN(x) __attribute__ ((aligned(x))) // SDIO uint32_t* compat.
 static char _ALIGN(4) HAL_eeprom_data[HAL_EEPROM_SIZE];
 
-#if ENABLED(SDSUPPORT)
+#define EEPROM_FILENAME "eeprom.dat"
 
-  #include "../../sd/cardreader.h"
+bool PersistentStore::access_start() {
+  if (!card.isMounted()) return false;
 
-  #define EEPROM_FILENAME "eeprom.dat"
+  SdFile file, root = card.getroot();
+  if (!file.open(&root, EEPROM_FILENAME, O_RDONLY))
+    return true; // false aborts the save
 
-  bool PersistentStore::access_start() {
-    if (!card.isMounted()) return false;
+  int bytes_read = file.read(HAL_eeprom_data, HAL_EEPROM_SIZE);
+  if (bytes_read < 0) return false;
+  for (; bytes_read < HAL_EEPROM_SIZE; bytes_read++)
+    HAL_eeprom_data[bytes_read] = 0xFF;
+  file.close();
+  return true;
+}
 
-    SdFile file, root = card.getroot();
-    if (!file.open(&root, EEPROM_FILENAME, O_RDONLY))
-      return true; // false aborts the save
+bool PersistentStore::access_finish() {
+  if (!card.isMounted()) return false;
 
-    int bytes_read = file.read(HAL_eeprom_data, HAL_EEPROM_SIZE);
-    if (bytes_read < 0) return false;
-    for (; bytes_read < HAL_EEPROM_SIZE; bytes_read++)
-      HAL_eeprom_data[bytes_read] = 0xFF;
+  SdFile file, root = card.getroot();
+  int bytes_written = 0;
+  if (file.open(&root, EEPROM_FILENAME, O_CREAT | O_WRITE | O_TRUNC)) {
+    bytes_written = file.write(HAL_eeprom_data, HAL_EEPROM_SIZE);
     file.close();
-    return true;
   }
-
-  bool PersistentStore::access_finish() {
-    if (!card.isMounted()) return false;
-
-    SdFile file, root = card.getroot();
-    int bytes_written = 0;
-    if (file.open(&root, EEPROM_FILENAME, O_CREAT | O_WRITE | O_TRUNC)) {
-      bytes_written = file.write(HAL_eeprom_data, HAL_EEPROM_SIZE);
-      file.close();
-    }
-    return (bytes_written == HAL_EEPROM_SIZE);
-  }
-
-#else // !SDSUPPORT
-
-  #error "Please define SPI_EEPROM (in Configuration.h) or disable EEPROM_SETTINGS."
-
-#endif // !SDSUPPORT
+  return (bytes_written == HAL_EEPROM_SIZE);
+}
 
 bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
   for (size_t i = 0; i < size; i++)

Marlin/src/HAL/STM32F1/inc/Conditionals_post.h

@@ -20,3 +20,8 @@
  *
  */
 #pragma once
+
+// If no real EEPROM, Flash emulation, or SRAM emulation is available fall back to SD emulation
+#if USE_FALLBACK_EEPROM
+  #define SDCARD_EEPROM_EMULATION
+#endif

Marlin/src/HAL/STM32F1/inc/SanityCheck.h

@@ -41,3 +41,11 @@
   #warning "With TMC2208/9 consider using SoftwareSerialM with HAVE_SW_SERIAL and appropriate SS_TIMER."
   #error "Missing SoftwareSerial implementation."
 #endif
+
+#if ENABLED(SDCARD_EEPROM_EMULATION) && DISABLED(SDSUPPORT)
+  #undef SDCARD_EEPROM_EMULATION // Avoid additional error noise
+  #if USE_FALLBACK_EEPROM
+    #warning "EEPROM type not specified. Fallback is SDCARD_EEPROM_EMULATION."
+  #endif
+  #error "SDCARD_EEPROM_EMULATION requires SDSUPPORT. Enable SDSUPPORT or choose another EEPROM emulation."
+#endif

buildroot/share/tests/mks_robin_lite-tests

@@ -6,12 +6,12 @@
 # exit on first failure
 set -e
 
-use_example_configs Mks/Robin
+restore_configs
 opt_set MOTHERBOARD BOARD_MKS_ROBIN_LITE
-opt_set EXTRUDERS 1
-opt_set TEMP_SENSOR_1 0
-opt_disable FSMC_GRAPHICAL_TFT
-exec_test $1 $2 "Default Configuration"
+opt_set SERIAL_PORT -1
+opt_enable EEPROM_SETTINGS
+opt_enable SDSUPPORT
+exec_test $1 $2 "Default Configuration with Fallback SD EEPROM"
 
 # cleanup
 restore_configs