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Compiler/TDA2SX: RTOS/tda2x: How to hold uart2 config and add uart1 config to make work together

user6253975
Prodigy 100 points
Part Number: TDA2SX

Tool/software: TI C/C++ Compiler

using RTOS/tda2x,I want use uart1 and uart2 work together in IPU1,but I have some problem with utils_uart.c, as following:

#define XBAR_CPU (CSL_XBAR_IRQ_CPU_ID_IPU1)
#define UART_INT_ID (60U)
#define XBAR_INST (CSL_XBAR_INST_IPU1_IRQ_60)
#define XBAR_INTR_SOURCE (CSL_XBAR_UART2_IRQ)
how to hold uart2 config ,and add uart1 config,please give me some advice
  • 0
    TI__Expert 6065 points

    Hi,

    You can route the UART1 interrupt to another interrupt number through the corresponding crossbar instance.
    Define interrupt source as UART1_IRQ,
    Define another unused interrupt number in your system, say 61.

    Check the APIs which are using these defines for UART2 and call the same APIs again with the UART1 specific macros.

    Regards,
    Prasad

  • 0 in reply to Prasad Konnur
    Prodigy 100 points

    AS FOLLOWIING：

    #define XBAR_CPU (CSL_XBAR_IRQ_CPU_ID_IPU1)
    #define UART_INT_ID (44U)
    #define XBAR_INST (CSL_XBAR_INST_IPU1_IRQ_44)
    #define XBAR_INTR_SOURCE (CSL_XBAR_UART1_IRQ)
    retval = PMHALModuleModeSet(PMHAL_PRCM_MOD_UART1,
                                                         PMHAL_PRCM_MODULE_MODE_ENABLED,
                                                         PM_TIMEOUT_INFINITE);

    Bsp_platformSetPinmuxRegs((UInt32) 0x04,
                                                    (UInt32) CTRL_CORE_PAD_UART1_RXD,
                                                     BSP_PLATFORM_IOPAD_CFG_DEFAULT);
    Bsp_platformSetPinmuxRegs((UInt32) 0x00,
                                                    (UInt32) CTRL_CORE_PAD_UART1_TXD,
                                                    BSP_PLATFORM_IOPAD_CFG_DEFAULT);
    /* Crossbar registers are already unlocked, so connect directly */
    //CSL_xbarIrqConfigure(XBAR_CPU, XBAR_INST, XBAR_INTR_SOURCE);
    BspOsal_irqXbarConnect(CSL_XBAR_INST_IPU1_IRQ_44, CSL_XBAR_UART1_IRQ);
    but some problem,can not work.could I change?
  • 0 in reply to user6253975
    TI__Expert 6065 points

    Hi,

    You need to enable two separate interrupts for UART1 and UART2.
    PDK has an example for UART in interrupt mode for UART1 at below location which you can refer for details.
    <pdk_install_dir>\packages\ti\csl\example\uart\uart_intr\main.c

    Also are you able to get single instance at a time to work for both UART1 and UART2?
    I think this should be first step to get started before trying for both together.

    Regards,
    Prasad

  • 0 in reply to Prasad Konnur
    Prodigy 100 points

    I have solved the problem。the uart4 work mode is right,and UART4_IRQ is only suitable with CSL_XBAR_INST_IPU1_IRQ_61,the other intr num does not work.

    Bsp_platformSetPinmuxRegs((UInt32) 0x1, (UInt32) CTRL_CORE_PAD_SPI1_CS3, BSP_PLATFORM_IOPAD_CFG_DEFAULT);
    Bsp_platformSetPinmuxRegs((UInt32) 0x1, (UInt32) CTRL_CORE_PAD_SPI1_CS2, BSP_PLATFORM_IOPAD_CFG_DEFAULT);
    BspOsal_irqXbarConnect(CSL_XBAR_INST_IPU1_IRQ_61, CSL_XBAR_UART4_IRQ);