FRDM-K32L2B3 and hello_world, led_blinky

[3ric]

SDK samples work on their own but:

just copying from hello_world.c to led_blinky.c:

...
SysTick_DelayTicks(1000U);
PRINTF("blinking");
GPIO_PortToggle(BOARD_LED_GPIO, 1u << BOARD_LED_GPIO_PIN);
...

will not print anything in the terminal window, what else needs to be initialized? 

i have examined the build options, the code already has:
BOARD_InitDebugConsole();

[Julián_AragónM]

Hello @3ric,

It seems the initialization function for the debug console is correct, but you may be missing a few steps. You will need to initialize the UART pins by copying the initialization from the hello_world sdk, add the necessary drivers from the example and include the PRINTF function.

Also, please note that the baud rate for this example is 115200, so be sure to check that as well.

Best regards, Julian 

[3ric]

when i set a breakpoint in the UART init function and "debug" through the IDE, it loads the board and then complains that breakpoints could not be set. 

if i disable the breakpoints, it continues to load. i can trace INTO the UART init code but it seems to do this only in the IDE, it's as if the components are not loaded to the board.

please direct me to the break between the auto-detection in the IDE that is not packaging the necessary drivers/components where I need to manually list them. where are the tabs? what configuration file must I edit?

thanks =E

frdmk32l2b_led_blinky/board/board.c
void BOARD_InitDebugConsole(void)
...
   DbgConsole_Init(BOARD_DEBUG_UART_INSTANCE, BOARD_DEBUG_UART_BAUDRATE, BOARD_DEBUG_UART_TYPE, uartClkSrcFreq);

frdmk32l2b_led_blinky/utilities/fsl_debug_console.c
status_t DbgConsole_Init(uint8_t instance, uint32_t baudRate, serial_port_type_t device, uint32_t clkSrcFreq)
...
  (void)HAL_UartInit((hal_uart_handle_t)&s_debugConsole.uartHandleBuffer[0], &usrtConfig);

frdmk32l2b_led_blinky/component/uart/fsl_adapter_lpuart.c
hal_uart_status_t HAL_UartInit(hal_uart_handle_t handle, const hal_uart_config_t *config)

[Julián_AragónM]

Hi @3ric,

Yes, of course. This process is simpler with MCU ConfigTools. Firstly, import a new SDK of the led_blinky example, then refer to MCUXpresso configuration at the top right of the project explorer tab.

 Go to pins, and enable pins 23 and 24 (PTA 1 & PTA 2) as LPUART0_RX and LPUART0_TX.

After that, click on the "update code" button at the top. Next, in led_blinky.c, include at the top "fsl_debug_console.h" and simply add the "PRINTF" function where you want the text displayed. 

Best regards, Julian

[3ric]

anyone else? this is a 60-second repro...