RTOS/TDA2PXEVM: Enabling UART4 instance for connecting sensor TDA2px evm

Hrishikesh Rajurkar

Part Number: TDA2PXEVM
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

Hi Prasad,

Thanks for the information.

We need to recieve data from the sensor connected over uart4 instance in vision sdk. can we use the APIs from bsp_uart.h from the pdk_<install_dir>\packages\ti\drv\bsp_lld\uart\

directly after doing settings

1. Pinmux configuration based on the SoC pins used in your board.
2. Prcm configuration for the UART instance used.
3. Board mux configuration if needed in your board.

either in board module or separately.

Also in interrupt mode , how much data will be received ?. It is planed to interface GPS device over uart4 , so can we assume to get all string data (~240 bytes) once interrupt is received for Rx on UART.

I also want to know whether we can have reception event ?

regards

Hrishikesh

over 7 years ago

0 Prasad Konnur over 7 years ago

TI__Expert 6065 points

Hi Hrishikesh,

You can use the UART driver functions.

UART driver registers to sysbios as in GIO model, you need to use the GIO APIs like GIO_read and GIO_write.

You can refer the example present in same folder for referance.

You will provide the data length to be received. and the API returns after all the bytes are received.

Regards,
Prasad

0 Hrishikesh Rajurkar over 7 years ago in reply to Prasad Konnur

Expert 1165 points

Thanks a lot Prasad, secondly i wanted to ask, in the code , UART init call is being executed from IPU1_0 core, can we access the device from A15 core ? As i see all the board initialization is done on ipu core, will the i2c2 instance available to from A15 ?
regards
Hrishikesh

0 Hrishikesh Rajurkar over 7 years ago in reply to Hrishikesh Rajurkar

Expert 1165 points

Hello
Do you have any udpates on this.
regards
Hrishikesh

0 Rishabh Garg over 7 years ago in reply to Hrishikesh Rajurkar

TI__Guru 55685 points

Hi Hrishikesh,

UART can be accessed from any core. Same goes for I2C2 availability from A15.
Here I am assuming the question is about HW availability.
SW drivers are available for IPU1_0 core.
You should port the driver in order to use it on another core say A15.

Regards,
Rishabh

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RTOS/TDA2PXEVM: Enabling UART4 instance for connecting sensor TDA2px evm