1 files changed, 55 insertions, 0 deletions
diff --git a/include/spi_flash.h b/include/spi_flash.h
new file mode 100644
index 0000000..d3c0247
--- /dev/null
+++ b/include/spi_flash.h
@@ -0,0 +1,55 @@
+#ifndef SPI_FLASH
+#define SPI_FLASH
+
+#include <stdint.h>
+#include "hardware/spi.h"
+#include "boards/pico_w.h"
+#include "pico/stdlib.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FLASH_PAGE_SIZE        256
+#define FLASH_NUM_PAGES        32768
+#define FLASH_SECTOR_SIZE      4096
+#define FLASH_BLOCK_SIZE       65536
+#define FLASH_PHYS_SIZE        (FLASH_PAGE_SIZE * FLASH_NUM_PAGES)
+
+#define FLASH_CMD_PAGE_PROGRAM 0x02
+#define FLASH_CMD_READ         0x03
+#define FLASH_CMD_STATUS       0x05
+#define FLASH_CMD_WRITE_EN     0x06
+#define FLASH_CMD_SECTOR_ERASE 0x20
+#define FLASH_CMD_BLOCK_ERASE  0xD8
+#define FLASH_CMD_CHIP_ERASE   0xC7
+
+#define FLASH_STATUS_BUSY_MASK 0x01
+
+// #define FLASH_TEST
+
+#define PACKET_SIZE            32
+
+
+static uint8_t page_buffer[FLASH_PAGE_SIZE];
+static uint32_t base_addr = 0;
+
+void write_entry(uint8_t* data_entry);
+
+void __not_in_flash_func(flash_read)(spi_inst_t *spi, uint cs_pin, uint32_t addr, uint8_t *dest, size_t len);
+
+
+void __not_in_flash_func(flash_write_enable)(spi_inst_t *spi, uint cs_pin);
+void __not_in_flash_func(flash_page_program)(spi_inst_t *spi, uint cs_pin, uint32_t addr, uint8_t* src);
+void __not_in_flash_func(flash_write)(spi_inst_t *spi, uint cs_pin, uint32_t addr, uint8_t* src, size_t size);
+
+void __not_in_flash_func(flash_wait_done)(spi_inst_t *spi, uint cs_pin);
+
+void __not_in_flash_func(flash_sector_erase)(spi_inst_t *spi, uint cs_pin, uint32_t addr);
+void __not_in_flash_func(flash_block_erase)(spi_inst_t *spi, uint cs_pin, uint32_t addr);
+void __not_in_flash_func(flash_erase)(spi_inst_t *spi, uint cs_pin);
+
+#ifdef __cplusplus
+}
+#endif
+#endif