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@@ -1,12 +1,16 @@
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/******************************************************************************
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* Flash api for NodeMCU
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+ * NodeMCU Team
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+ * 2014-12-31
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*******************************************************************************/
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#include "user_config.h"
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#include "flash_api.h"
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#include "spi_flash.h"
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+#include "c_stdio.h"
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+
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SPIFlashInfo *ICACHE_FLASH_ATTR
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-flash_get_info()
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+flash_get_info(void)
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{
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static SPIFlashInfo spi_flash_info;
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static bool is_spi_flash_info_initialized = false;
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@@ -19,8 +23,15 @@ flash_get_info()
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return &spi_flash_info;
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}
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+uint8_t ICACHE_FLASH_ATTR
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+flash_get_size(void)
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+{
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+ SPIFlashInfo *p_spi_flash_info = flash_get_info();
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+ return p_spi_flash_info->size;
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+}
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+
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uint32_t ICACHE_FLASH_ATTR
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-flash_get_size_byte()
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+flash_get_size_byte(void)
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{
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static uint32_t flash_size = 0;
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// Make the code more fast
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@@ -58,8 +69,69 @@ flash_get_size_byte()
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return flash_size;
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}
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+bool ICACHE_FLASH_ATTR
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+flash_set_size(uint8_t size)
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+{
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+ // Dangerous, here are dinosaur infested!!!!!
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+ // Reboot required!!!
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+ // If you don't know what you're doing, your nodemcu may turn into stone ...
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+ c_printf("\nSet size!!! %d\n", size);
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+ uint8_t data[SPI_FLASH_SEC_SIZE];
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+ SPIRead(0, data, sizeof(data));
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+ SPIFlashInfo *p_spi_flash_info = (SPIFlashInfo *)(data);
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+ p_spi_flash_info->size = size;
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+ SPIEraseSector(0);
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+ SPIWrite(data, 0, sizeof(data));
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+ //p_spi_flash_info = flash_get_info();
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+ //p_spi_flash_info->size = size;
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+ return true;
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+}
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+
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+bool ICACHE_FLASH_ATTR
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+flash_set_size_byte(uint32_t size)
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+{
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+ // Dangerous, here are dinosaur infested!!!!!
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+ // Reboot required!!!
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+ // If you don't know what you're doing, your nodemcu may turn into stone ...
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+ bool result = true;
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+ uint32_t flash_size = 0;
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+ switch (size)
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+ {
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+ case 256 * 1024:
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+ // 2Mbit, 256kByte
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+ flash_size = SIZE_2MBIT;
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+ flash_set_size(flash_size);
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+ break;
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+ case 512 * 1024:
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+ // 4Mbit, 512kByte
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+ flash_size = SIZE_4MBIT;
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+ flash_set_size(flash_size);
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+ break;
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+ case 1 * 1024 * 1024:
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+ // 8Mbit, 1MByte
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+ flash_size = SIZE_8MBIT;
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+ flash_set_size(flash_size);
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+ break;
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+ case 2 * 1024 * 1024:
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+ // 16Mbit, 2MByte
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+ flash_size = SIZE_16MBIT;
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+ flash_set_size(flash_size);
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+ break;
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+ case 4 * 1024 * 1024:
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+ // 32Mbit, 4MByte
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+ flash_size = SIZE_32MBIT;
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+ flash_set_size(flash_size);
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+ break;
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+ default:
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+ // Unknown flash size.
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+ result = false;
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+ break;
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+ }
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+ return result;
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+}
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+
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uint16_t ICACHE_FLASH_ATTR
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-flash_get_sec_num()
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+flash_get_sec_num(void)
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{
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static uint16_t result = 0;
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// Make the code more fast
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@@ -69,3 +141,92 @@ flash_get_sec_num()
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}
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return result;
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}
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+
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+uint8_t ICACHE_FLASH_ATTR
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+flash_get_mode(void)
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+{
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+ SPIFlashInfo *p_spi_flash_info = flash_get_info();
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+ switch (p_spi_flash_info->mode)
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+ {
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+ // Reserved for future use
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+ case MODE_QIO:
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+ break;
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+ case MODE_QOUT:
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+ break;
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+ case MODE_DIO:
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+ break;
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+ case MODE_DOUT:
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+ break;
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+ }
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+ return p_spi_flash_info->mode;
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+}
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+
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+uint32_t ICACHE_FLASH_ATTR
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+flash_get_speed(void)
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+{
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+ uint32_t speed = 0;
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+ SPIFlashInfo *p_spi_flash_info = flash_get_info();
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+ switch (p_spi_flash_info->speed)
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+ {
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+ case SPEED_40MHZ:
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+ // 40MHz
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+ speed = 40000000;
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+ break;
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+ case SPEED_26MHZ:
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+ //26.7MHz
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+ speed = 26700000;
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+ break;
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+ case SPEED_20MHZ:
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+ // 20MHz
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+ speed = 20000000;
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+ break;
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+ case SPEED_80MHZ:
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+ //80MHz
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+ speed = 80000000;
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+ break;
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+ }
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+ return speed;
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+}
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+
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+bool ICACHE_FLASH_ATTR
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+flash_init_data_default(void)
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+{
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+ // FLASH SEC - 4
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+ // Dangerous, here are dinosaur infested!!!!!
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+ // Reboot required!!!
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+ // It will init system data to default!
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+ uint8_t flash_init_data[128] =
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+ {
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+ 0x05, 0x00, 0x04, 0x02, 0x05, 0x05, 0x05, 0x02, 0x05, 0x00, 0x04, 0x05, 0x05, 0x04, 0x05, 0x05,
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+ 0x04, 0xFE, 0xFD, 0xFF, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xE0, 0xE1, 0x0A, 0xFF, 0xFF, 0xF8, 0x00,
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+ 0xF8, 0xF8, 0x52, 0x4E, 0x4A, 0x44, 0x40, 0x38, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03, 0x04, 0x05,
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+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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+ 0xE1, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x93, 0x43, 0x00, 0x00, 0x00,
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+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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+ };
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+ SPIEraseSector((flash_get_sec_num() - 4));
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+ SPIWrite((flash_get_sec_num() - 4) * SPI_FLASH_SEC_SIZE, flash_init_data, sizeof(flash_init_data));
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+ return true;
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+}
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+
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+bool ICACHE_FLASH_ATTR
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+flash_init_data_blank(void)
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+{
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+ // FLASH SEC - 2
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+ // Dangerous, here are dinosaur infested!!!!!
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+ // Reboot required!!!
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+ // It will init system config to blank!
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+ SPIEraseSector((flash_get_sec_num() - 2));
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+ SPIEraseSector((flash_get_sec_num() - 1));
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+ return true;
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+}
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+
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+bool ICACHE_FLASH_ATTR
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+flash_self_destruct(void)
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+{
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+ // Erase your flash. Good bye!
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+ SPIEraseChip();
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+ return true;
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+}
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