MSPM0G3507: How to enable direction pin for RS485 in Serial bootloader

sowmya N

Part Number: MSPM0G3507

Tool/software:

How to enable GPIO pin for RS485 Direction Pin in secondary_bsl_uart example.

0 Helic Chi 1 month ago

Since you are using secondary_bsl_uart, you can directly add a GPIO to control RS485's direction pin.

Add GPIO output high/low function to: BSL_PI_UART_receive and BSL_PI_UART_send

0 sowmya N 1 month ago in reply to Helic Chi

How to add RS485's Direction pin for ROM based BSL and ROM based BSL with Flash Plugin interface.

0 Helic Chi 1 month ago in reply to sowmya N

sowmya N said:
ROM based BSL

ROM BSL doesn't support this kind of advance function.

sowmya N said:
ROM based BSL with Flash Plugin interface.

You can add one GPIO in plugin UART_init, and control it in UART Rx/Tx function.

Default status should be output enable Rx.

You can find plugin four function defined in plugin demo code.

Arm-based microcontrollers forum