Posted on October 29, 2015 at 10:28
Hi,
I'm new to STM32 and I got a STM32F7 Discovery Board. I'm playing around with the USB Host MSC Standalone Application example provided in the STM32Cube_FW_F7 package.
In the Application, there are things like:
USBH_UsrLog(''Starting MSC Demo'');
LCD_UsrLog(''USB Host library started.\n'');
defined as:
#if (USBH_DEBUG_LEVEL > 0)
#define USBH_UsrLog(...) printf(__VA_ARGS__);\
printf(''\n'');
#define LCD_UsrLog(...) LCD_LineColor = LCD_LOG_TEXT_COLOR;\
printf(__VA_ARGS__);\
But I'm not sure where to view the logs. Are they re-directed to the LCD or somewhere else? Because I can't see the logs on the LCD, but I can see the header and footer (specified as LCD_LOG_SetHeader((uint8_t *)'' USB OTG HS MSC Host'');)
I'm using Eclipse + GCC + OpenOCD.
I have added the LCD_Log.h file and in the lcd_log_conf.h has the following definition:
/* Redirect the printf to the LCD */
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define LCD_LOG_PUTCHAR int __io_putchar(int ch)
But I'm not sure where to view the logs. Are they re-directed to the LCD or somewhere else? Because I can't see the logs on the LCD, but I can see the header and footer (specified as LCD_LOG_SetHeader((uint8_t *)'' USB OTG HS MSC Host'');)
I'm using Eclipse + GCC + OpenOCD.
For the project, I plan to have a log file stored in the SD Card but I also want to read the content of the file from the PC by plugging the discovery board in with a USB cable. Is the ''USB Host MSC Standalone HS '' the right example application to be working with?
Thanks in advance!
#stm32f7 #eclipse #usbhost
