UART3 am3352

Hi,

I wan't to use UART3 instead of UART0 on starterware but it doesn't work.

First thing, I replace in uartConsole.c init function

void UARTConsoleInit(void)
{
    /* Configuring the system clocks for UART3 instance. */
    UART3ModuleClkConfig();

    /* Performing the Pin Multiplexing for UART3 instance. */
    UARTPinMuxSetup(3);

    UARTStdioInitExpClk(BAUD_RATE_115200, 1, 1);
}

Second, I change mux pins in Uart.c

void UARTPinMuxSetup(unsigned int instanceNum)
{
     if(0 == instanceNum)
     {
          /* RXD */
          HWREG(SOC_CONTROL_REGS + CONTROL_CONF_UART_RXD(0)) = 
          (CONTROL_CONF_UART0_RXD_CONF_UART0_RXD_PUTYPESEL | 
           CONTROL_CONF_UART0_RXD_CONF_UART0_RXD_RXACTIVE);

          /* TXD */
          HWREG(SOC_CONTROL_REGS + CONTROL_CONF_UART_TXD(0)) = 
           CONTROL_CONF_UART0_TXD_CONF_UART0_TXD_PUTYPESEL;
     }
     if(3 == instanceNum)
     {
          /* RXD */
          HWREG(SOC_CONTROL_REGS + CONTROL_CONF_SPI0_CS1) =
          (CONTROL_CONF_UART3_RXD_CONF_UART3_RXD_PUTYPESEL |
           CONTROL_CONF_UART3_RXD_CONF_UART3_RXD_RXACTIVE);

          /* TXD */
          HWREG(SOC_CONTROL_REGS + CONTROL_CONF_ECAP0_IN_PWM0_OUT) =
        	CONTROL_CONF_UART3_TXD_CONF_UART3_TXD_PUTYPESEL;
     }
}

Other I make a new function for clock config

void UART3ModuleClkConfig(void)
{

    HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) =
                             CM_PER_L3S_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) &
     CM_PER_L3S_CLKSTCTRL_CLKTRCTRL) != CM_PER_L3S_CLKSTCTRL_CLKTRCTRL_SW_WKUP);

    HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) =
                             CM_PER_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) &
     CM_PER_L3_CLKSTCTRL_CLKTRCTRL) != CM_PER_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP);

    HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) =
                             CM_PER_L3_INSTR_CLKCTRL_MODULEMODE_ENABLE;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_L3_INSTR_CLKCTRL) &
                               CM_PER_L3_INSTR_CLKCTRL_MODULEMODE) !=
                                   CM_PER_L3_INSTR_CLKCTRL_MODULEMODE_ENABLE);

    HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) =
                             CM_PER_L3_CLKCTRL_MODULEMODE_ENABLE;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKCTRL) &
        CM_PER_L3_CLKCTRL_MODULEMODE) != CM_PER_L3_CLKCTRL_MODULEMODE_ENABLE);

    HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) =
                             CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
                              CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL) !=
                                CM_PER_OCPWP_L3_CLKSTCTRL_CLKTRCTRL_SW_WKUP);

    HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) =
                             CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL_SW_WKUP;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
                             CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL) !=
                               CM_PER_L4LS_CLKSTCTRL_CLKTRCTRL_SW_WKUP);

    HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) =
                             CM_PER_L4LS_CLKCTRL_MODULEMODE_ENABLE;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKCTRL) &
      CM_PER_L4LS_CLKCTRL_MODULEMODE) != CM_PER_L4LS_CLKCTRL_MODULEMODE_ENABLE);

    HWREG(SOC_CM_PER_REGS + CM_PER_UART3_CLKCTRL) &= ~CM_PER_UART3_CLKCTRL_MODULEMODE;

    HWREG(SOC_CM_PER_REGS + CM_PER_UART3_CLKCTRL) |=
                             CM_PER_UART3_CLKCTRL_MODULEMODE_ENABLE;

    while((HWREG(SOC_CM_PER_REGS + CM_PER_UART3_CLKCTRL) &
      CM_PER_UART3_CLKCTRL_MODULEMODE) != CM_PER_UART3_CLKCTRL_MODULEMODE_ENABLE);


    while(!(HWREG(SOC_CM_PER_REGS + CM_PER_L3S_CLKSTCTRL) &
            CM_PER_L3S_CLKSTCTRL_CLKACTIVITY_L3S_GCLK));

    while(!(HWREG(SOC_CM_PER_REGS + CM_PER_L3_CLKSTCTRL) &
            CM_PER_L3_CLKSTCTRL_CLKACTIVITY_L3_GCLK));

    while(!(HWREG(SOC_CM_PER_REGS + CM_PER_OCPWP_L3_CLKSTCTRL) &
           (CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L3_GCLK |
            CM_PER_OCPWP_L3_CLKSTCTRL_CLKACTIVITY_OCPWP_L4_GCLK)));




    while(!(HWREG(SOC_CM_PER_REGS + CM_PER_L4LS_CLKSTCTRL) &
           (CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_L4LS_GCLK |
            CM_PER_L4LS_CLKSTCTRL_CLKACTIVITY_UART_GFCLK)));


	/*UART3 IDLEST*/
	while((CM_PER_UART3_CLKCTRL_IDLEST_FUNC <<
                        CM_PER_UART3_CLKCTRL_IDLEST_SHIFT) !=
              (HWREG(SOC_CM_PER_REGS + CM_PER_UART3_CLKCTRL) &
                          CM_PER_UART3_CLKCTRL_IDLEST));

}

And I change base UART in uartconsole.c

#define UART_CONSOLE_BASE                    (SOC_UART_3_REGS)

I have nothing on tx with scope.

I forget something ?

Thanks