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@@ -43,26 +43,32 @@ static char HAL_STM32F1_eeprom_content[HAL_STM32F1_EEPROM_SIZE];
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#include "../../sd/cardreader.h"
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- static char eeprom_filename[] = "eeprom.dat";
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+ #define EEPROM_FILENAME "eeprom.dat"
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bool PersistentStore::access_start() {
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if (!card.isDetected()) return false;
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- int16_t bytes_read = 0;
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- constexpr char eeprom_zero = 0xFF;
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- card.openFile(eeprom_filename, true);
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- bytes_read = card.read(HAL_STM32F1_eeprom_content, HAL_STM32F1_EEPROM_SIZE);
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+
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+ SdFile file, root = card.getroot();
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+ if (!file.open(&root, EEPROM_FILENAME, O_RDONLY))
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+ return false;
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+
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+ int16_t bytes_read = file.read(HAL_STM32F1_eeprom_content, HAL_STM32F1_EEPROM_SIZE);
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if (bytes_read < 0) return false;
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for (; bytes_read < HAL_STM32F1_EEPROM_SIZE; bytes_read++)
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- HAL_STM32F1_eeprom_content[bytes_read] = eeprom_zero;
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- card.closefile();
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+ HAL_STM32F1_eeprom_content[bytes_read] = 0xFF;
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+ file.close();
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return true;
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}
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bool PersistentStore::access_finish() {
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if (!card.isDetected()) return false;
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- card.openFile(eeprom_filename, false);
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- int16_t bytes_written = card.write(HAL_STM32F1_eeprom_content, HAL_STM32F1_EEPROM_SIZE);
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- card.closefile();
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+
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+ SdFile file, root = card.getroot();
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+ if (file.open(&root, EEPROM_FILENAME, O_CREAT | O_WRITE | O_TRUNC))
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+ return false;
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+
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+ int16_t bytes_written = file.write(HAL_STM32F1_eeprom_content, HAL_STM32F1_EEPROM_SIZE);
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+ file.close();
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return (bytes_written == HAL_STM32F1_EEPROM_SIZE);
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}
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