sync(template): 回合 capsule_mb 通用驱动修复

- uart_ring_buffer: PRIMASK 位检查从 ==0 改为 &0x1 修正 - i2c: 新增 i2c_read_raw() 无子地址读函数 - 全局: volatile 统一替换为 __IO (CMSIS 风格)
2026-06-30 11:03:22 +08:00
parent 03810e9cad
commit bfa311b70f
5 changed files with 181 additions and 14 deletions
@@ -53,7 +53,7 @@
   It is strongly recommended to include it to avoid issues caused by self-removal. 
 */
 #define RCU_MODIFY(__delay)     do{                                     \
-                                    volatile uint32_t i,reg;            \
+                                    __IO uint32_t i,reg;            \
                                    if(0 != __delay){                   \
                                        reg = RCU_CFG0;                 \
                                        reg &= ~(RCU_CFG0_AHBPSC);      \