MA35D1关于i2c中断号的疑问

1万 · 2023-3-6 14:45

MA35D1有关i2c中断号问题，TRM手册和设备树、UM_EN_MA35D1_Linux_BSP.pdf描述不一致，哪个描述才是正确？

1万 · 2023-3-7 14:00

关于中断号问题，可以这么看：

TRM 是从 SGI 算起，BSP 是从 32 (platform exception) 算起

I2C1  101 – 32 = 69

I2C2  129 - 32 = 97

/* ------------------------- Interrupt Number Definition ------------------------ */

/** Device specific Interrupt IDs */

typedef enum IRQn

{

/****** SGI Interrupts Numbers ************************************************/

SGI0_IRQn = 0, /*!< Software Generated Interrupt 0 */

SGI1_IRQn = 1, /*!< Software Generated Interrupt 1 */

SGI2_IRQn = 2, /*!< Software Generated Interrupt 2 */

SGI3_IRQn = 3, /*!< Software Generated Interrupt 3 */

SGI4_IRQn = 4, /*!< Software Generated Interrupt 4 */

SGI5_IRQn = 5, /*!< Software Generated Interrupt 5 */

SGI6_IRQn = 6, /*!< Software Generated Interrupt 6 */

SGI7_IRQn = 7, /*!< Software Generated Interrupt 7 */

SGI8_IRQn = 8, /*!< Software Generated Interrupt 8 */

SGI9_IRQn = 9, /*!< Software Generated Interrupt 9 */

SGI10_IRQn = 10, /*!< Software Generated Interrupt 10 */

SGI11_IRQn = 11, /*!< Software Generated Interrupt 11 */

SGI12_IRQn = 12, /*!< Software Generated Interrupt 12 */

SGI13_IRQn = 13, /*!< Software Generated Interrupt 13 */

SGI14_IRQn = 14, /*!< Software Generated Interrupt 14 */

SGI15_IRQn = 15, /*!< Software Generated Interrupt 15 */

/****** Cortex-35 Processor Exceptions Numbers ****************************************/

GlobalTimer_IRQn = 27, /*!< Global Timer Interrupt */

PrivTimer_IRQn = 29, /*!< Private Timer Interrupt */

PrivWatchdog_IRQn = 30, /*!< Private Watchdog Interrupt */

/****** Platform Exceptions Numbers ***************************************************/

LVD_IRQn = 32, /*!< Low Voltage detection Interrupt */

......

I2C1_IRQn = 101, /*!< I2C 1 Interrupt */

.......

} IRQn_Type;