Configure UART for T4240RDB at Lauterbach Trace32 Script

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Configure UART for T4240RDB at Lauterbach Trace32 Script

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vinothkumars
Senior Contributor III

Hi All,

I am using Lauterbach Trace32 Script for UART in t4240rdb machine. But, I am not getting Uart baud rate properly. 

I want to you guys suggestion for configure UART register.

The script flow,

DO ~~~~/demo_set_rcw_rev1.cmm

;Calculation of UART settings for 115200Bd
&SYS_PLL_RAT="((data.long(ANC:iobase.address()+0xE0100)>>25.)&0x0000001F)" ;Get PLL ratio from RCW for                    correct DUART settings
&UARTH=0x0
&UARTL=0x0
IF &SYS_PLL_RAT==0x4
&UARTL=0x48
ELSE IF &SYS_PLL_RAT==0x5
&UARTL=0x5A
ELSE IF &SYS_PLL_RAT==0x6
&UARTL=0x6D
ELSE IF &SYS_PLL_RAT==0x7
&UARTL=0x7F
ELSE IF &SYS_PLL_RAT==0x8
&UARTL=0x91
ELSE IF &SYS_PLL_RAT==0x9
&UARTL=0xA3
ELSE IF &SYS_PLL_RAT==0xA
&UARTL=0xB5
ELSE IF &SYS_PLL_RAT==0xB
&UARTL=0xC7
ELSE IF &SYS_PLL_RAT==0xC
&UARTL=0xD9
ELSE IF &SYS_PLL_RAT==0xD
&UARTL=0xEB
ELSE IF &SYS_PLL_RAT==0xE
&UARTL=0xFD
ELSE IF &SYS_PLL_RAT==0xF
&UARTL=0x10F
ELSE IF &SYS_PLL_RAT==0x10
&UARTL=0x121

ELSE
(
PRINT %ERROR "ERROR: invalid RCW SYS_PLL_RAT settings."
STOP
)

;configure DUART1 - UART1
Data.Set ANC:IOBASE()+0x11C501 %Byte 0x00
Data.Set ANC:IOBASE()+0x11C503 %Byte 0x83
Data.Set ANC:IOBASE()+0x11C500 %Byte 0x00
Data.Set ANC:IOBASE()+0x11C501 %Byte 0x00
Data.Set ANC:IOBASE()+0x11C503 %Byte 0x03
Data.Set ANC:IOBASE()+0x11C504 %Byte 0x03
Data.Set ANC:IOBASE()+0x11C502 %Byte 0x07
Data.Set ANC:IOBASE()+0x11C503 %Byte 0x83
Data.Set ANC:IOBASE()+0x11C500 %Byte &UARTL
Data.Set ANC:IOBASE()+0x11C501 %Byte &UARTH
Data.Set ANC:IOBASE()+0x11C503 %Byte 0x03

;configure DUART1 - UART2
Data.Set ANC:IOBASE()+0x11C601 %Byte 0x00
Data.Set ANC:IOBASE()+0x11C603 %Byte 0x83
Data.Set ANC:IOBASE()+0x11C600 %Byte 0x00
Data.Set ANC:IOBASE()+0x11C601 %Byte 0x00
Data.Set ANC:IOBASE()+0x11C603 %Byte 0x03
Data.Set ANC:IOBASE()+0x11C604 %Byte 0x03
Data.Set ANC:IOBASE()+0x11C602 %Byte 0x07
Data.Set ANC:IOBASE()+0x11C603 %Byte 0x83
Data.Set ANC:IOBASE()+0x11C600 %Byte &UARTL
Data.Set ANC:IOBASE()+0x11C601 %Byte &UARTH
Data.Set ANC:IOBASE()+0x11C603 %Byte 0x03

;configure DUART2 - UART1
Data.Set ANC:IOBASE()+0x11D501 %Byte 0x00
Data.Set ANC:IOBASE()+0x11D503 %Byte 0x83
Data.Set ANC:IOBASE()+0x11D500 %Byte 0x00
Data.Set ANC:IOBASE()+0x11D501 %Byte 0x00
Data.Set ANC:IOBASE()+0x11D503 %Byte 0x03
Data.Set ANC:IOBASE()+0x11D504 %Byte 0x03
Data.Set ANC:IOBASE()+0x11D502 %Byte 0x07
Data.Set ANC:IOBASE()+0x11D503 %Byte 0x83
Data.Set ANC:IOBASE()+0x11D500 %Byte &UARTL
Data.Set ANC:IOBASE()+0x11D501 %Byte &UARTH
Data.Set ANC:IOBASE()+0x11D503 %Byte 0x03

;configure DUART2 - UART2
Data.Set ANC:IOBASE()+0x11D601 %Byte 0x00
Data.Set ANC:IOBASE()+0x11D603 %Byte 0x83
Data.Set ANC:IOBASE()+0x11D600 %Byte 0x00
Data.Set ANC:IOBASE()+0x11D601 %Byte 0x00
Data.Set ANC:IOBASE()+0x11D603 %Byte 0x03

Data.Set ANC:IOBASE()+0x11D604 %Byte 0x03
Data.Set ANC:IOBASE()+0x11D602 %Byte 0x07
Data.Set ANC:IOBASE()+0x11D603 %Byte 0x83
Data.Set ANC:IOBASE()+0x11D600 %Byte &UARTL
Data.Set ANC:IOBASE()+0x11D601 %Byte &UARTH
Data.Set ANC:IOBASE()+0x11D603 %Byte 0x03

;print message DUART1 - UART1
Data.Out ANC:IOBASE()+0x11C500 %Byte 0x0D 0x0A
Data.Out ANC:IOBASE()+0x11C500 %Byte 0x0D 0x0A
Data.Out ANC:IOBASE()+0x11C500 %Byte "This text is printed via the TRACE32 configuration script for T4240QDS" 0x0D 0x0A
Data.Out ANC:IOBASE()+0x11C500 %Byte "===================================================================" 0x0D 0x0A
Data.Out ANC:IOBASE()+0x11C500 %Byte 0x0D 0x0A
Data.Out ANC:IOBASE()+0x11C500 %Byte 0x0D 0x0A

Thank You for All Your Help..........!

Regards, VinothS

Regards,
Vinothkumar Sekar
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alexander_yakov
NXP TechSupport
NXP TechSupport

I do not see anything obviously incorrect in your script. This part:

ELSE IF &SYS_PLL_RAT==0xA
&UARTL=0xB5

Is correctly set, in accordance with Table 17-3 of T4240 Reference Manual.

Please dump actual register settings to verify these values were correctly set.

Please verify resulting transmission frequency by scope, how it differs from calculated frequency.


Have a great day,
Alexander
TIC

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alexander_yakov
NXP TechSupport
NXP TechSupport

I do not see anything obviously incorrect in your script. This part:

ELSE IF &SYS_PLL_RAT==0xA
&UARTL=0xB5

Is correctly set, in accordance with Table 17-3 of T4240 Reference Manual.

Please dump actual register settings to verify these values were correctly set.

Please verify resulting transmission frequency by scope, how it differs from calculated frequency.


Have a great day,
Alexander
TIC

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

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