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Hello, Thats great!! But this does mean that the pdf file of the RN-Motor is not correct. Greetings, H.J. Windt > Hello again, > > That was the problem! Now everything works fine. > I have implemented the changes to my programm and reading out the number of steps is no longer a problem. > > Thank you very much for your great help!!! > > Gaston > > > Hello, > > I have already looked into this forum to see if anybody had troubles reading the steps taken but did not find anything. > > It looks like that basic++ is a mix of basic and c++, I looked at the code but I donÂ’t like what I see, the code does not take I2C clock stretching into consideration, this is really important if you are using micro controller based slaves, my code does. > > Also, to make an i2c port go HIGH you do not sda = 1 or sda = on, I think this is not good, you must deact sda, the pullup resistor will do the rest. > > > > I want to try something else, replace the code with the code below, and let me know if this works. > > Greetings, > > H.J. Windt > > > > > > > > #read_motor_steps_taken > > if motor_selection > 1 then print "Cant read both motors at the same time!!" > > if motor_selection > 1 then goto start > > gosub start_i2c > > i2c_byte = &h56 : gosub write_byte_i2c > > i2c_byte = 10 : gosub write_byte_i2c > > i2c_byte = 13 : gosub write_byte_i2c > > i2c_byte = motor_selection : gosub write_byte_i2c > > gosub stop_i2c > > if i2c_nack then goto pass_read > > gosub start_i2c > > i2c_byte = &h57 : gosub write_byte_i2c > > gosub read_byte_i2c : low_word = i2c_byte > > gosub read_byte_i2c : low_word = i2c_byte * 256 + low_word > > gosub read_byte_i2c : high_word = i2c_byte > > gosub read_last_byte_i2c : high_word = i2c_byte * 256 + high_word > > gosub stop_i2c > > #pass_read > > if i2c_nack_count > 18 then goto no_ack_from_i2c_device > > if i2c_nack then goto read_motor_steps_taken > > print"HIGH word = ";high_word;" Low word = ";low_word > > goto start > |
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Re: RN-Motor an I2C-Bus (von Gaston - 7.07.2005 16:00)