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I want use two or more buffers with IO functions. One way I could imagine was if I use two different callbacks. I would call HAL_UART_Receive_IT using buffer A which calls HAL_UART_RxCpltCallback A which calls HAL_UART_Receive_IT using buffer B which...
Hello,while many STM32 have a RNG unit, only few parts, like the STM32L053, have a TRNG unit. Looking at the reference manual, I see no real difference.Is there any fundamental difference in TRNG versus RNG unit?
Greetings.I'm using STM32L051 for a project, and there are some maths calculations where I'm using single-precision floating point calculations (additions, multiplications, sinf(), cosf(), etc.).My calculation routine is taking about 7ms when using 1...
I have SD card interfaced with stm32f407 through 4bit SDIO. I am writing data from I2S _DMA_receive buffer into the sd card. This write should happen continuously,but it happens only once.Here is the piece of the code:FATFS myFATAFS;FATFS *myFATAFS1;...
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...
Posted on July 11, 2011 at 21:13I'd like to use a Connectivity Line STM32's (STM32F107) I2C peripheral in the 400Khz fast mode. I'm using a Olimex STM32-H107, which has a 25MHz external crystal. I am confused by what the reference manual says (RM000...
DMA1_Stream0->FCR = 0DMA configured to work in double buffer direct mode.And I get FEIF0 error interrupt flag?
I made NRF24L01 module using STM32L432. I supplied 3.3V to MCU and NRF24L01. So, I checked USART communication from STM32L432 to PC. But I failed checking SPI to NRF24L01.Below, Problems I have, If I supply 3.3V to MCU(Actually whole module), GPIO Ou...
Hi,I am trying to use either TIM13 or TIM14 but the ISR never get trigger.My questions areWhy the ISR routine never trigger? Is there anything else need be set?how to control the timer? what's the prescaler, period mean? If I want setup the timer tri...
Posted on March 19, 2018 at 10:24The __HAL_LOCK macro is defined as in stm32f1xx_hal_def.h#define __HAL_LOCK(__HANDLE__) \ do{ \ if((__HANDLE__)->Lock == HAL_LOCKED) \ { \ return HAL_BUSY; \ } \ else \ { \ (__HANDLE__)->Lock = HAL_LOCKED; \ } \ }whi...
