hulk/xlsw_3dp_ultrasonic_300K
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用gd32e230的stdlib重写wbh的参考代码，并因为stm的stdlib和gd32的stdlib有很大差异，超时机制与flag验证差异较大，通过对比重新编写。

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数据计算方式重新书写，两个8位数据的合并方式修改为位移，并且整体放大100倍（标准数据为((Data[1] << 8) | Data[0]) * 0.02 - 273.15）
This commit is contained in:
yelvlab 2024-10-09 10:38:39 +08:00
parent 485122c6df
commit 53fadd4c22
2 changed files with 18 additions and 14 deletions
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2
src/main.c
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@ -56,7 +56,7 @@ int main(void)
distance_uint16 = calculate_distance(capture_value); distance_uint16 = calculate_distance(capture_value);
printf(result, distance_uint16); printf(result, distance_uint16);
printf("Temp:%d", read_ir_mlx90614()); printf("Temp:%d\n", read_ir_mlx90614());
} }
} }

30
src/mlx90614.c
View File

@ -19,8 +19,10 @@ void i2c_config(void) {
i2c_enable(I2C0); i2c_enable(I2C0);
i2c_ack_config(I2C0, I2C_ACK_ENABLE); i2c_ack_config(I2C0, I2C_ACK_ENABLE);
nvic_irq_enable(I2C0_EV_IRQn, 2); i2c_start_on_bus(I2C0);
nvic_irq_enable(I2C0_ER_IRQn, 2);
// nvic_irq_enable(I2C0_EV_IRQn, 2);
// nvic_irq_enable(I2C0_ER_IRQn, 2);
} }
int read_ir_mlx90614(void) { int read_ir_mlx90614(void) {
@ -31,7 +33,7 @@ int read_ir_mlx90614(void) {
while (TIMEOUT < 10000 && i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)) while (TIMEOUT < 10000 && i2c_flag_get(I2C0, I2C_FLAG_I2CBSY))
TIMEOUT++; TIMEOUT++;
if (TIMEOUT >= 10000) { if (TIMEOUT >= 10000) {
//printf("ERROR0\r\n"); printf("ERROR0\r\n");
return -410; return -410;
} }
TIMEOUT = 0; TIMEOUT = 0;
@ -51,7 +53,7 @@ int read_ir_mlx90614(void) {
&& !i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && !i2c_flag_get(I2C0, I2C_FLAG_SBSEND))
TIMEOUT++; TIMEOUT++;
if (TIMEOUT >= 10000) { if (TIMEOUT >= 10000) {
//printf("ERROR1\r\n"); printf("ERROR1\r\n");
return -410; return -410;
} }
// I2C_AcknowledgeConfig(I2C0,DISABLE); // I2C_AcknowledgeConfig(I2C0,DISABLE);
@ -98,7 +100,7 @@ int read_ir_mlx90614(void) {
&& !i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && !i2c_flag_get(I2C0, I2C_FLAG_SBSEND))
TIMEOUT++; TIMEOUT++;
if (TIMEOUT >= 10000) { if (TIMEOUT >= 10000) {
//printf("ERROR3\r\n"); printf("ERROR3\r\n");
return -410; return -410;
} }
TIMEOUT = 0; TIMEOUT = 0;
@ -117,7 +119,7 @@ int read_ir_mlx90614(void) {
&& !i2c_flag_get(I2C0, I2C_FLAG_RBNE)) && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
TIMEOUT++; TIMEOUT++;
if (TIMEOUT >= 10000) { if (TIMEOUT >= 10000) {
//printf("ERROR4\r\n"); printf("ERROR4\r\n");
return -410; return -410;
} }
//I2C_AcknowledgeConfig(I2C0,DISABLE); //I2C_AcknowledgeConfig(I2C0,DISABLE);
@ -137,7 +139,7 @@ int read_ir_mlx90614(void) {
&& !i2c_flag_get(I2C0, I2C_FLAG_RBNE)) && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
TIMEOUT++; TIMEOUT++;
if (TIMEOUT >= 10000) { if (TIMEOUT >= 10000) {
//printf("ERROR5\r\n"); printf("ERROR5\r\n");
return -410; return -410;
} }
@ -157,7 +159,7 @@ int read_ir_mlx90614(void) {
&& !i2c_flag_get(I2C0, I2C_FLAG_RBNE)) && !i2c_flag_get(I2C0, I2C_FLAG_RBNE))
TIMEOUT++; TIMEOUT++;
if (TIMEOUT >= 10000) { if (TIMEOUT >= 10000) {
//printf("ERROR6\r\n"); printf("ERROR6\r\n");
return -410; return -410;
} }
@ -208,16 +210,18 @@ int read_ir_mlx90614(void) {
i2c_stop_on_bus(I2C0); i2c_stop_on_bus(I2C0);
// I2C_AcknowledgeConfig(I2C0, ENABLE); // I2C_AcknowledgeConfig(I2C0, ENABLE);
i2c_ack_config(I2C0, I2C_ACK_ENABLE); i2c_ack_config(I2C0, I2C_ACK_ENABLE);
//printf("data:%x,%x,%x\r\n",Data[0],Data[1],Data[2]); printf("data:%x,%x,%x\r\n",Data[0],Data[1],Data[2]);
// inttemp_ir = (int) ((Data[0] + Data[1] * 255) * 0.2 - 2731.5); // inttemp_ir = (int) ((Data[0] + Data[1] * 255) * 0.2 - 2731.5);
// Data[0] = 0x41;
// Data[1] = 0x39;
inttemp_ir = (((Data[1] << 8) | Data[0]) * 2 - 27315); inttemp_ir = (((Data[1] << 8) | Data[0]) * 2 - 27315);
// printf("temp:%d\r\n",inttemp_ir); // printf("temp:%d\r\n",inttemp_ir);
if (inttemp_ir < -400) // if (inttemp_ir < -4000)
inttemp_ir = -400; // inttemp_ir = -4000;
if (inttemp_ir > 850) // if (inttemp_ir > 8500)
inttemp_ir = 850; // inttemp_ir = 8500;
// //
return inttemp_ir; return inttemp_ir;
} }