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Greenworld

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  1. Hi everyone, I use the following function to compute the angle from accelerometer: float a =atan2f(-0.143798828, -0.680053711); But it can not return a proper result (a huge number ~10^22). How I can compute the angle directly on the chip. (I used CCS IDE). Thanks!
  2. Hi everyone, Can control my BBB located in my home from my company ? Please give me some solutions! Thanks everyone
  3. Greenworld

    R0 OHM

    Hi buddy, I have a trouble, on both Stellaris and Tiva Lanchpad, PD0 and PB6 are joined through R9 0ohm resistor and PD1 and PB7 are joined through R10 0ohm resistor. Why is supplier do that ?. If I unsolder R9 and R10, will I face with any problems ? Some case, PD0, PB6 not work properly because two resistors. Thanks everyone!
  4. Anyone please help me ..
  5. dear abecedarian, TM4C123GH6PMI.
  6. @abecedarian TM4C123GH6PMI
  7. Hi everybody, I have tried to use ADC1 (ADC1_BASE, 2) to read analog signal, but no more affection. I change it to ADC0 (ADC0_BASE, 2), it have done perfectly. My programe only have ADC reading. I have test many time. What I can do to use ADC1 ? Please help me to solve it. Thanks !
  8. Can I create a smaller font (5x8), is it possible ?
  9. Hi everyone, I wanna to customize new font, symbol of this LCD, can I use it via a software ?, or else please give me the way to create it. Thanks!
  10. Greenworld

    I2C halted

    I wanna implement I2C communication, when I write data, it can not exit the following command: while(I2CMasterBusy) { } How I can solve my problem. Thanks in advanced!
  11. Hi everyone, In some silly minutes, I have made a reverse power for Beaglebone Black, Could I make destroy all of main IC on this board. Currently, all LEDs were broken. What can I do now ? I hope someone can help me! Thank in advance!
  12. Hi everybody, I now that BBB have six pwm channel, includes: PWM 0A, 0B;1A,1B;2A,2B I have enable all six channel ( write to slots), but it only have three channel with full file ( duty, period, polarity) and another are have not this file. (I have attached these file) Please give me the answer for my problem. Much appreciate !
  13. Hi everybody, I have a bug, please help me to solve it When I enable this module and access to this path/sys/devices/ocp.3/48304000.epwmss/48304180.eqep# when I use 'ls' command, I only get :modalias power subsystem uevent It's not display as normal(tutorial):driver enabled modalias mode period position power subsystem uevent I hope anyone give me a recommend to complete my project,Please. Much Appreciated!
  14. Hi everybody, I have a bug, please help me to solve it. When I enable this module and access to this path /sys/devices/ocp.3/48304000.epwmss/48304180.eqep# when I use 'ls' command, I only get : modalias power subsystem uevent It's not display as normal(tutorial): driver enabled modalias mode period position power subsystem uevent I hope anyone give me a recommend to complete my project,Please. Much Appreciated!
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