Hi!
I'm using mpu6050 and Nucleo-f103RB without MXCUBE
i got problem with I2C communication.
LED is blink in infinity..
/* Wait until SB flag is set */
if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, tickstart) != HAL_OK)
{
return HAL_TIMEOUT;
}
this is part of header file which make LED blink all the time
Has anyone found a way to deal with this?
Thanks!
////////////////////////////////////////////////////////////////////////////
#include "main.h"
I2C_HandleTypeDef handle_i2c;
static uint16_t Xdata = 0x00;
static int a=0;
void SYS_CLK(void);
void LED_PA5(void);
void I2C_SET(void);
int main(void)
{
uint8_t address = 0x68;
uint8_t GYROH = 0x43;
uint8_t GYROL = 0x44;
uint8_t buffer[2];
SYS_CLK();
LED_PA5();
I2C_SET();
while( HAL_I2C_IsDeviceReady(&handle_i2c,address<<1,1,100) == HAL_TIMEOUT)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);
HAL_Delay(500);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
HAL_Delay(100);
}
}
void SYS_CLK(void)
{
// SYS_CLK SETTING
RCC_OscInitTypeDef RCC_OscInitStruct = {0}; //Reset OscInit Struct
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI_DIV2; // div clock by 2
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL16; // mul clock to 16
HAL_RCC_OscConfig(&RCC_OscInitStruct);
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; // Reset Clk Struct
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2 ; // look at tree
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; //
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
}
void LED_PA5(void)
{
GPIO_InitTypeDef GPIO_PA5 = {0};
// CLOCK SETTING
__HAL_RCC_GPIOA_CLK_ENABLE();
// GPIO SETTING
GPIO_PA5.Pin = GPIO_PIN_5; // GPIOA's 5th Pin use
GPIO_PA5.Mode = GPIO_MODE_OUTPUT_PP; // use A5 Pin as output
GPIO_PA5.Pull = GPIO_PULLUP; // use A5 Pin as Pullup
GPIO_PA5.Speed = GPIO_SPEED_FREQ_LOW; // LOW FREQ
HAL_GPIO_Init(GPIOA, &GPIO_PA5); // SET GPIOA
//
}
void I2C_SET(void)
{
// SET The handle Structure
// Enable I2C1 interface Clock
// I2C pins configuration
__HAL_RCC_GPIOB_CLK_ENABLE(); // Enable the clock for the I2C GPIOs
//Configure I2C pins as alternate function open-drain
GPIO_InitTypeDef I2CPin_PA6_SCL = {0};
GPIO_InitTypeDef I2CPin_PA7_SCA = {0};
I2CPin_PA6_SCL.Pin = GPIO_PIN_6;
I2CPin_PA6_SCL.Mode = GPIO_MODE_AF_OD;
I2CPin_PA6_SCL.Pull = GPIO_PULLUP;
I2CPin_PA6_SCL.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &I2CPin_PA6_SCL);
I2CPin_PA7_SCA.Pin = GPIO_PIN_7;
I2CPin_PA6_SCL.Mode = GPIO_MODE_AF_OD;
I2CPin_PA6_SCL.Pull = GPIO_PULLUP;
I2CPin_PA6_SCL.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &I2CPin_PA7_SCA);
handle_i2c.Instance = I2C1;
handle_i2c.Init.ClockSpeed = 400000;
handle_i2c.Init.DutyCycle = I2C_DUTYCYCLE_2; // 표준 듀티비
handle_i2c.Init.OwnAddress1 = 0;
handle_i2c.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
handle_i2c.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
handle_i2c.Init.OwnAddress2 = 0;
handle_i2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
handle_i2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
HAL_I2C_Init(&handle_i2c);
}
