Initial commit: CCU621_M firmware project with BLE debug link support.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-08 17:28:36 +08:00
commit 9ceb218f80
1597 changed files with 724159 additions and 0 deletions
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+#ifndef EXFLASH_SPI4_GD25QXX_H
+#define EXFLASH_SPI4_GD25QXX_H
+
+#include "gd32h7xx.h"
+
+/* GD25QXX 页大小：每页 256 字节 */
+#define SPI_FLASH_PAGE_SIZE           (0x100u)
+
+/* 片选脚由 PJ9 软件控制 */
+#define SPI_FLASH_CS_LOW()            gpio_bit_reset(GPIOJ, GPIO_PIN_9)
+#define SPI_FLASH_CS_HIGH()           gpio_bit_set(GPIOJ, GPIO_PIN_9)
+
+/* 初始化 SPI4 与片选 GPIO */
+void spi_flash_init(void);
+/* 擦除 4KB 扇区 */
+void spi_flash_sector_erase(uint32_t sector_addr);
+/* 全片擦除（耗时较长） */
+void spi_flash_bulk_erase(void);
+/* 页内写（不处理跨页） */
+void spi_flash_page_write(uint8_t *pbuffer, uint32_t write_addr, uint16_t num_byte_to_write);
+/* 连续写（自动处理跨页） */
+void spi_flash_buffer_write(uint8_t *pbuffer, uint32_t write_addr, uint16_t num_byte_to_write);
+/* 连续读 */
+void spi_flash_buffer_read(uint8_t *pbuffer, uint32_t read_addr, uint16_t num_byte_to_read);
+/* 读取 JEDEC ID */
+uint32_t spi_flash_read_id(void);
+/* 发起连续读命令序列（随后可重复 spi_flash_read_byte） */
+void spi_flash_start_read_sequence(uint32_t read_addr);
+/* 连续读阶段读取 1 字节 */
+uint8_t spi_flash_read_byte(void);
+/* SPI 收发 1 字节 */
+uint8_t spi_flash_send_byte(uint8_t byte);
+/* SPI 收发 1 半字 */
+uint16_t spi_flash_send_halfword(uint16_t half_word);
+/* 置写使能（WREN） */
+void spi_flash_write_enable(void);
+/* 轮询 WIP 位，等待写/擦完成 */
+void spi_flash_wait_for_write_end(void);
+
+#endif