Print debug information

Topic

FAQ

ZNS

Jul 01, 2021 13:36

中 /A

Hello! In the chapter 4 of SDK Developer Manual there is an instruction how to printf debug info on any GPIO. Here are my defines

(app_cfg.h)

#define UART_PRINTF_MODE 1

#define BAUDRATE 1000000

(board_custom.h included in app_cfg.h)

#if UART_PRINTF_MODE

#define DEBUG_INFO_TX_PIN GPIO_PB1//print

#endif

I've put "printf("some text")" in timer callback( which works), but no debug info coming out from GPIO_PB1 pin.

Also I have a warning on each printf "statement with no effect".
Are there some more defines to use debug printf, or maybe project settings? Or may be not every pin can be a debug output?
P.S. i'm using TLSR8258, SDK V3.6.5.0

tlsr825x C

halakvyas Jul 23, 2021 02:38

中 _/A

Try to include u_printf.h as shown in sample below,

#define UART_PRINT_DEBUG_ENABLE 1

#if (UART_PRINT_DEBUG_ENABLE)
//the baud rate should not bigger than 1M(system timer clock is constant 16M)
#define PRINT_BAUD_RATE 1000000
#define DEBUG_INFO_TX_PIN GPIO_PB2
#define PULL_WAKEUP_SRC_PB2 PM_PIN_PULLUP_10K
#define PB2_OUTPUT_ENABLE 1
#define PB2_DATA_OUT 1 //must

#include "application/print/u_printf.h"
#endif

ZNS [Author] Jul 23, 2021 13:59

中 _/A

Thank you! i've already solved the problem.

@halakvyas

3 replies

TL_hk Jul 01, 2021 14:27

中 _/A

There are no other steps, but it's recommended that clean and recompile the project if you modify the .h files.

halakvyas Jul 23, 2021 02:38

中 _/A

Try to include u_printf.h as shown in sample below,

#define UART_PRINT_DEBUG_ENABLE 1

#include "application/print/u_printf.h"
#endif