Jump to content


  • Content Count

  • Joined

  • Last visited

About sandbox

  • Rank

Profile Information

  • Gender
  • Location
  1. I have looked into that, but this SPI lines needs to control an lcd display, so using software SPI might be too slow... Is there any reference on how fast this can go?
  2. Hi All, I am trying to use the MSP430G2553 on a TI -Launchpad to Communicate with a bunch of sensors, My problem is that i need to use I2C for one (eeprom) and SPI for another (display LCD). But according to the energia pin mapping here, the I2C pins and the SPI are on the same pins (p1_7 (UCB0SOMI) and p1_6 (UCB0SIMO)). How do i shift the MISO and MOSI pins to p1_1 and p1_2 , i know its supported by the G2553 hardware since the pins correspond to UCA0SOMI UCA0SIMO. Can someone please point me to the changes i need to make in the Energia core for this to happen? Please help... Than
  3. Thank you very much for the advice ! It all works now !
  4. Hi all, I am having some trouble getting interrupts up and running on the energia, i have a couple of questions. 1 ) I have not been able to find a list of pins on the G2553 that are compatible with interrupts. 2) I am using the following code, with a tactile button (pulled up to VCC with a 10k and then pressing it connects it to ground) and it only seems to work with the option "FALLING" in the interrupt declaration "CHANGE" does not work. Any suggestions on what might be going wrong ? void setup() { attachInterrupt(P2_0,blinky,FALLING); Serial.begin(9600); } void loop(
  5. This is the error i get and it is the same across other computers as well :
  6. Hi all, thanks for the great project ! I am trying to build a USB LCD (link)that communicates with a PC using bbusb, i have not been able to get it working reliably, the issue is that i am trying to use p2.3 and p2.4 for the d+ and d- lines and even after i changed the code over to Port - B, there is no response, all windows & says is that an USB device malfunctioned. I am using the following setup with a 3v LDO to power the entire thing , Please help, can someone tell me where i am going wrong ? I am attaching the code i have modified as well BBUSB3.rar
  7. Hi all, I know this is slightly off the current focus of the thread but could anyone please let me know if there is any example to send and receive data to the uC from a PC using bbusb ? Best, Varun
  8. Thanks, i will try it out without the crystal first...
  9. Hi All, I am trying to build a board with this USB functionality integrated. I have a few newbie questions, please help me out : I was reading up on the TI forums that the G2553 does not support high frequency crystals and that you would need a oscillator to feed the clock in, so is it ok if i just attach a crystal through a couple of load capacitors to the MSP43062553's Xin an Xout pins . Something like the schematic attached... Or do i need to build an oscillator circuit to get things running? If possible can someone please point me to some schematics of the setup you have been u
  10. Also is it possible to change the pins being used on the MSP430G2553 ? Say to something on port 2?
  11. How would you go about doing that? can you point me to any examples ?
  12. So we have to use libusb to send data to the device?
  13. This is really amazing, getting it working without a crystal opens up more possibilities, I was wondering whether the Communication Device class can be implemented this way so that the device shows up as a COM port that other programs can talk to ?
  • Create New...