STM32L010とMbedでI2Cスレーブで遊ぶ(受信)(STM32L010F4P6)HAL
x Mbed2リビジョン125
目的
I2Cスレーブのテスト
参考
//I2C_SLAVE_TEST1
#include "mbed.h"
//シリアルの初期化
RawSerial pc(PA_2, PA_3); //010
//I2Cアドレス
const int ADDR = 0x80; // address
//I2Cの構造体
I2C_HandleTypeDef hi2c1;
//I2Cの初期化
void I2C_INIT1()
{
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF1_I2C1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
__HAL_RCC_I2C1_CLK_ENABLE();
//I2C_HandleTypeDef hi2c1;
hi2c1.Instance = I2C1;
hi2c1.Init.Timing = 0x00000708;
hi2c1.Init.OwnAddress1 = ADDR;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
HAL_I2C_Init(&hi2c1);
HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE);
HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0);
}//I2C_INIT1
//GPIOの初期化
void GPIO_INIT1()
{
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}//GPIO_INIT1
//メイン関数
int main()
{
wait_ms(2); //HAL_Delay()になぜか失敗するので呼び出す
//I2Cの初期化
I2C_INIT1();
//GPIOの初期化
GPIO_INIT1();
uint8_t aRxBuffer[1] = {0};
char *str1;
//無限ループ
while (1) {
aRxBuffer[0] = 0 ;
if(HAL_I2C_Slave_Receive(&hi2c1,(uint8_t*)aRxBuffer, 1, 1000) == HAL_OK) {
str1="OK";
} else {
str1="NG";
}
//ステータスの表示
pc.printf("I2C Status: %s\r\n", str1);
//I2Cスレーブの受信データの表示
pc.printf("\tRead A: %d\r\n", aRxBuffer[0]);
HAL_Delay(500);//0.5秒待つ
}//while
}//main
//容量削減
void error(const char* format, ...){}
I2Cマスター STM32L010F4P6
//I2C_OUT_TEST1
#include "mbed.h"
//I2Cアドレス
const int ADDR = 0x80; // address
//I2Cの構造体
I2C_HandleTypeDef hi2c1;
//I2Cの初期化
void I2C_INIT1()
{
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF1_I2C1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
__HAL_RCC_I2C1_CLK_ENABLE();
//I2C_HandleTypeDef hi2c1;
hi2c1.Instance = I2C1;
hi2c1.Init.Timing = 0x00000708;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
HAL_I2C_Init(&hi2c1);
HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE);
HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0);
}//I2C_INIT1
//GPIOの初期化
void GPIO_INIT1()
{
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}//GPIO_INIT1
//メイン関数
int main()
{
wait_ms(2); //HAL_Delay()になぜか失敗するので呼び出す
//I2Cの初期化
I2C_INIT1();
//GPIOの初期化
GPIO_INIT1();
//無限ループ
while (1) {
//I2Cに1を送信
HAL_I2C_Master_Transmit(&hi2c1,ADDR, (uint8_t *)"\001", 1, 3000); //data 1
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
HAL_Delay(1000);//1秒待つ
//I2Cに1を送信
HAL_I2C_Master_Transmit(&hi2c1, ADDR, (uint8_t *)"\002", 1, 3000); //data 2
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
HAL_Delay(1000);//1秒待つ
}//while
}//main
Author And Source
この問題について(STM32L010とMbedでI2Cスレーブで遊ぶ(受信)(STM32L010F4P6)HAL), 我々は、より多くの情報をここで見つけました https://qiita.com/caa45040/items/68227b7f930ae5535c17著者帰属:元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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