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RN
Senior
since ‎2018-07-19
‎2023-06-14

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  • 51 Posts
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LTDC layer 1 offset

2019-06-05
Hello,I used the below code from ST bsp Board : STM32F746-DISCO BSP_LCD_Init(); BSP_LCD_SetLayerWindow(0,50,50,200,200); BSP_LCD_LayerRgb565Init(LTDC_LAYER_1,(uint32_t)fb);I expected layer 1 should be off by 50 on both axes . but it started from x = ...

PWR register and wakeup from Standby mode

2018-08-29
Hello, I want to know whether PWR_CSR resets or not when exiting the standby mode using wakeup pins. there is an ambiguity in the RMin STM32F446RE MCU RM document @ 6.1.2 Power reset it is mentioned as below "A power reset is generated when one of t...

About voltage scaling 1, 2 ,3

2018-08-17
Hello,I am working on Power Reduction and we are using STM32F446RE Microcontroller. In the RM i found this, "the regulator output voltage (around1.2 V) can be scaled by software to different voltage values (scale 1, scale 2, and scale3 can be configu...

UART DMA TX complete callback issue

2018-08-04
Hello, In the uart driver code of STM32 CUBE layer i found this, static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma){ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; /* DMA Normal mode*/ if((hdma->Instanc...

Timer interrupt does not wake up the processor

2018-08-03
Hello, I am using timer 6 and generating interrupts for every 1s.it works fine when i dont enable the sleep on exit feature. but if i enable sleep on exit feature, after the first timer interrupt , processor goes to sleep and the next timer interrupt...
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