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- #Msp432p401r wire library portable#
- #Msp432p401r wire library code#
- #Msp432p401r wire library professional#
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#Msp432p401r wire library portable#
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#Msp432p401r wire library code#
Thank you again everyone! Special thanks Energia for reading through the code and insightful advice.Įdited 10 Apr: ok soldered the TP1 test point on the LP to power the SL018, and confirmed the code will not run properly without the resistor pull up. Will double check later sorry I'm too tired by now. Is also modified (various places, for I'm not sure the preprocessor in Energia handling the ARDUINO variable):Īnd one more down for a read(), but i guess everyone know what i mean. This is for connecting to P1.0 of LP, receiving signal when a tag is near the reader. Only thing modified from the above source is (1) The ino source file (original for Arduino) used is at
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The green light is from the SL018 when the tag is present. The white paper is an ultralite tag, covering most part of the green SL018 standing behind. Another blue one standing is a bluetooth, again nothing to do with this. Sorry for the mess, the blue on the breadboard is an Arduino Nano, just to provide 5V for input to the SL018 and nothing else. On Energia it always return true for all I2C addresses !Īdded two 2k2 resistors for each from LP Vcc to SDA and SCL, and removed the internal pull up code as Energia suggested, no more hang and the reader finally willing to show the tag info! Did not tried the write yet but I believe it should work too. On Arduino, this scanner working correctly. Serial.println("No I2C devices found\n") ĭelay(5000) // wait 5 seconds for next scan Serial.print("Unknow error at address 0x") Serial.print("I2C device found at address 0x") a device did acknowledge to the address. The i2c_scanner uses the return value of Devices with higher bit address might not be seen properly.įor(address = 1 address < 120 address++ ) This sketch tests the standard 7-bit addresses according to the i2c scanner by Nick Gammon Scanning addresses changed from 0.127 to 1.119, Adapted to be as simple as possible by user Krodal Version 2, Juni 2012, Using Arduino 1.0.1 This program (or code that looks like it) The reader should be working fine as the LED flashed when the tag is near.Īny help will be much appreciated. wait until at least 20ms passed since last I2C transmissionĪnd the debug statement suggested it hang at Wire.endTransmission():Īnd then nothing happen. I am using the LP, connecting to an RFID reader. After testing and debugging the problem seems to be stuck at Wire.endTransmission(). I am trying to make an Anduino program to work on the MSP430G2553 using Energia.