Posted on July 16, 2017 at 13:08
Hi to all
At first let me say that i'm a newbie ,an old newbie.
I'm trying to add a SPI display to LoRa board based on
STM32L072CZ
I have used STM32CubeMx to select the pins,clock and so on,the programming enviroment is the AC6 Workbench,
i was encouraged to use the Hal libraries,and so i did.
Once the simple project was generated i added in the code a call to a simple blocking SPI function(despite i set SPI interrupt handler in Cube MX)
while (1)
{
Delay(10);
HAL_SPI_Transmit(& hspi2, my_pdata, 4, 10);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?
I can see the data and the clock,but the SPI_NSS pin PB12 stays low.
On the schematic it looks that it has to do with T_SWD IO_IN.
Does this mean that PB12 is not available?
If i check in the I/O register window ,PB12 results assigned to MODE2,as the other SPI2 pins are.
What can i do or check to understand the reason of this inactivity?
Thanks
#b-l072z-lrwan1-spi-pb12-stm32l072cz* #b-l072z-lrwan1-spi-pb12*
