./workspace/TS100 -> ./source/

source/Core/BSP/Miniware/flash.c

@@ -0,0 +1,46 @@
+/*
+ * flash.c
+ *
+ *  Created on: 29 May 2020
+ *      Author: Ralim
+ */
+
+#include "BSP_Flash.h"
+#include "BSP.h"
+#include "string.h"
+#include "stm32f1xx_hal.h"
+
+static uint16_t settings_page[512] __attribute__ ((section (".settings_page")));
+
+uint8_t flash_save_buffer(const uint8_t *buffer, const uint16_t length) {
+	FLASH_EraseInitTypeDef pEraseInit;
+	pEraseInit.TypeErase = FLASH_TYPEERASE_PAGES;
+	pEraseInit.Banks = FLASH_BANK_1;
+	pEraseInit.NbPages = 1;
+	pEraseInit.PageAddress = (uint32_t) settings_page;
+	uint32_t failingAddress = 0;
+	resetWatchdog();
+	__HAL_FLASH_CLEAR_FLAG(
+			FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR | FLASH_FLAG_BSY);
+	HAL_FLASH_Unlock();
+	HAL_Delay(1);
+	resetWatchdog();
+	HAL_FLASHEx_Erase(&pEraseInit, &failingAddress);
+	//^ Erase the page of flash (1024 bytes on this stm32)
+	// erased the chunk
+	// now we program it
+	uint16_t *data = (uint16_t*) buffer;
+	HAL_FLASH_Unlock();
+	for (uint8_t i = 0; i < (length / 2); i++) {
+		resetWatchdog();
+		HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD,
+				(uint32_t) &settings_page[i], data[i]);
+	}
+	HAL_FLASH_Lock();
+	return 1;
+}
+
+void flash_read_buffer(uint8_t *buffer, const uint16_t length) {
+
+	memcpy(buffer, settings_page, length);
+}