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stm32f0_clock: convert tabs to spaces

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wangyz1997 2024-12-06 15:52:54 +08:00
parent 7e37a19f22
commit cf7518d5eb
5 changed files with 37 additions and 37 deletions
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18
stm32f0_clock/Bsp/Src/bsp_ds18b20.c
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@ -12,7 +12,7 @@ static void bsp_ds18b20_delay_us(uint16_t delay_us) //实际延时时间会比de
static void bsp_ds18b20_reset_bus(void) static void bsp_ds18b20_reset_bus(void)
{ {
HAL_GPIO_WritePin(ONEWIRE_GPIO_Port, ONEWIRE_Pin, GPIO_PIN_RESET); //拉低DQ HAL_GPIO_WritePin(ONEWIRE_GPIO_Port, ONEWIRE_Pin, GPIO_PIN_RESET); //拉低DQ
bsp_ds18b20_delay_us(500); //拉低500us 复位总线 bsp_ds18b20_delay_us(500); //拉低500us 复位总线
HAL_GPIO_WritePin(ONEWIRE_GPIO_Port, ONEWIRE_Pin, GPIO_PIN_SET); HAL_GPIO_WritePin(ONEWIRE_GPIO_Port, ONEWIRE_Pin, GPIO_PIN_SET);
} }
@ -93,25 +93,25 @@ HAL_StatusTypeDef bsp_ds18b20_start_conv(void) //开始温度转换
HAL_StatusTypeDef bsp_ds18b20_get_temp(float *temp_out) HAL_StatusTypeDef bsp_ds18b20_get_temp(float *temp_out)
{ {
bsp_ds18b20_reset_bus(); bsp_ds18b20_reset_bus();
HAL_StatusTypeDef res = bsp_ds18b20_check_present(); HAL_StatusTypeDef res = bsp_ds18b20_check_present();
if (res != HAL_OK) { if (res != HAL_OK) {
return res; return res;
} }
bsp_ds18b20_write_byte(0xCC); //跳过ROM bsp_ds18b20_write_byte(0xCC); //跳过ROM
bsp_ds18b20_write_byte(0xBE); //读Scratchpad bsp_ds18b20_write_byte(0xBE); //读Scratchpad
uint8_t temp_lsb = bsp_ds18b20_read_byte(); //Scratchpad第0字节 温度LSB uint8_t temp_lsb = bsp_ds18b20_read_byte(); //Scratchpad第0字节 温度LSB
uint8_t temp_msb = bsp_ds18b20_read_byte(); //Scratchpad第1字节 温度MSB uint8_t temp_msb = bsp_ds18b20_read_byte(); //Scratchpad第1字节 温度MSB
if(temp_msb & 0x80) { //温度为负 if(temp_msb & 0x80) { //温度为负
int16_t temp = (~temp_msb) << 8 | (~temp_lsb); //转换为正数 int16_t temp = (~temp_msb) << 8 | (~temp_lsb); //转换为正数
*temp_out = -0.0625f * temp; //输出负数 *temp_out = -0.0625f * temp; //输出负数
} else { //温度为正 } else { //温度为正
int16_t temp = temp_msb << 8 | temp_lsb; int16_t temp = temp_msb << 8 | temp_lsb;
*temp_out = 0.0625f * temp; //12位转换精度 每LSB等于0.0625度 *temp_out = 0.0625f * temp; //12位转换精度 每LSB等于0.0625度
} }
return HAL_OK; return HAL_OK;
} }