FAQ_MA35D1 I2C Interrupt Issue

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ytliu6
Posts: 62
Joined: 08 Nov 2022, 10:28

05 Dec 2022, 11:49

MA35D1 I2C description on the TRM and device tree is not the sample as UM_EN_MA35D1_Linux_BSP
TRM interruption is count from SGI and BSP is count from 32 (platform exception)

I2C1: 101 – 32 = 69
I2C2: 129 - 32 = 97

Code: Select all

/* ------------------------- 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;
#MA35D1 #Interrupt #I2C

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