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想使用开关电源给STM32供电，查阅手册只看到供电电压要控制在3.3V，但不知道供电电流应该控制在多少?
或者fpga怎么调用单片机内核，可以告诉我需要学习哪些东西，用到哪些软件和具体步骤呢
void setup(){ Serial.begin(115200); Wire.begin(); Wire.setClock(400000); pinMode(myLed OUTPUT); digitalWrite(myLed HIGH); pinMode(intPin1 INPUT); // interrupt pinMode(intPin2 INPUT); Serial.println("MPU9250 9-axis motion sensor..."); uint8_t c = MPU9250.getMPU9250ID(MPU1); uint8_t d = MPU9250.getMPU9250ID(MPU2); if (c == 0x71) { Serial.println("MPU 1 is online"); isOnline_1 = true; } if (d == 0x71) { Serial.println("MPU 2 is online"); isOnline_2 = true; } if(!isOnline_1 && !isOnline_2) { Serial.print("Could not connect to MPU9250"); Serial.println(c HEX); while(1) ; } // get sensor resolutions only need to do this once same for both MPU9250s for now获取传感器分辨率，只需要做一次，目前对于两个mpu9250都是一样的 aRes = MPU9250.getAres(Ascale); gRes = MPU9250.getGres(Gscale); mRes = MPU9250.getMres(Mscale);#if CALIBRATION_GYRO MPU9250.calibrateMPU9250(MPU1 gyroBias1 accelBias1); // Calibrate gyro and accelerometers load biases in bias registers Serial.println("MPU accel biases (g)"); Serial.println(accelBias1[0]10); Serial.println(accelBias1[1]10); Serial.println(accelBias1[2]10); Serial.println("MPU gyro biases"); Serial.println(gyroBias1[0]); Serial.println(gyroBias1[1]); Serial.println(gyroBias1[2]); Serial.println("Finished!! Please reset"); while(1);#endif//update gyro bias reg if(isOnline_1) { MPU9250.GyroBiasWriteToReg(MPU1 gyroBias1); MPU9250.initMPU9250(MPU1 Ascale Gscale sampleRate); byte e = MPU9250.getAK8963CID(MPU1); // Read WHO_AM_I register for AK8963读取 Serial.print("AK8963 1 "); Serial.print("I AM "); Serial.print(e HEX); Serial.print(" I should be "); Serial.println(0x48 HEX); MPU9250.initAK8963Slave(MPU1 Mscale Mmode magCalibration1); Serial.println("AK8963 1 initialized for active data mode...."); // Initialize device 1 for active mode read of magnetometer初始化设备1以读取磁力计的有源模式 } if(isOnline_2) { MPU9250.GyroBiasWriteToReg(MPU2 gyroBias2); MPU9250.initMPU9250(MPU2 Ascale Gscale sampleRate); byte e = MPU9250.getAK8963CID(MPU2); // Read WHO_AM_I register for AK8963 Serial.print("AK8963 2 "); Serial.print("I AM "); Serial.print(e HEX); Serial.print(" I should be "); Serial.println(0x48 HEX); MPU9250.initAK8963Slave(MPU2 Mscale Mmode magCalibration1); Serial.println("AK8963 2 initialized for active data mode...."); // Initialize device 2 for active mode read of magnetometer } #if CALIBRATION_MAG MPU9250.magcalMPU9250(MPU1 magBias1 magScale1); Serial.println("AK8963 1 mag biases (mG)"); Serial.println(magBias1[0]); Serial.println(magBias1[1]); Serial.println(magBias1[2]); Serial.println("AK8963 1 mag scale (mG)"); Serial.println(magScale1[0]); Serial.println(magScale1[1]); Serial.println(magScale1[2]); while(1);#endif attachInterrupt(digitalPinToInterrupt(intPin1) myinthandler1 RISING); // define interrupt for intPin output of MPU9250 1定义MPU9250的intPin输出中断 attachInterrupt(digitalPinToInterrupt(intPin2) myinthandler2 RISING); // define interrupt for intPin output of MPU9250 2 digitalWrite(myLed LOW); // turn off led when using flash memory使用闪存时关闭led灯}
IMSA-9202B-1-03P-GF 和 IMSA-9202B-1-03-GF 有什么区别吗？ 是同一个型号吗
LC4064V-75TN48C 网上有的图片上 丝印是LC4064V-75TN 10I 有的 就是LC4064V-75TN48C 到底哪个才是对的 不应该丝印上的尾缀也是48C吗
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