serial programming

Started by ilovedebiangnu in TI C20008 years ago 4 replies

hi is there any way to program C2x or related families without any emulator or debugger card i just want to know that can i program this...

hi is there any way to program C2x or related families without any emulator or debugger card i just want to know that can i program this devices with com port or program them with an EEPROM _____________________________________


Issue in I2C module with Piccolo 28027

Started by Nadeem in TI C20009 years ago 1 reply

Hello All, I am working on the Piccolo 28027 controller. I have query while working with the I2C module. I am Trying to...

Hello All, I am working on the Piccolo 28027 controller. I have query while working with the I2C module. I am Trying to run the sample code of the I2C provided by TI, but its not working properly. While I run the code the SCLA(clock) remains in LOW State. Due to this the data has not transmit or Receive. I had externally connected AT24C32 EEPROM to I2C...


eCAN Error

Started by AminRezaie in TI C20009 years ago

Hi I've some experience in using 2812 peripheral but not on ecan. now i want use can bus to connect to the motor driver to make some change...

Hi I've some experience in using 2812 peripheral but not on ecan. now i want use can bus to connect to the motor driver to make some change o= nto configuration or set point. but i have no ack. in can bus. I set TRS0 and wait for TA0 to be set but after 180 time read and check CAN= TA reg CANEs register set some flag like(SMA, EW and EP), and repeat. i'm so confused. my code is : =A0 void...


Loss of processor clock when trying to connect through the JTAG port

Started by cmackinnon44 in TI C20009 years ago 3 replies

I can't connect to my DSP through the JTAG port. The message that CCS gives me is that it has lost the processor clock and the device is...

I can't connect to my DSP through the JTAG port. The message that CCS gives me is that it has lost the processor clock and the device is operating in low power mode. The clock signal going in is 20 MHz (pin 90) and coming out of the XCLKOUT pin is 2.5 MHz initially. As soon as I try to connect through my JTAG device (Signum Systems JTAGJET - TMS), the XCLKOUT signal disappears. I've chec...


Code Size

Started by Harish Muniganti in TI C20009 years ago 2 replies

Hi All, I have just started working on TI DSP 2808 with Code composer software tools. How to know the amount of memory space my code is...

Hi All, I have just started working on TI DSP 2808 with Code composer software tools. How to know the amount of memory space my code is going to occupy (Code Size, Ram size etc..). I looked in the *.MAP file but could not find. Where to find this option in CCS to show the memory size, code is going to occupy. Thanks Harish Muniganti


Zero filling the BSS segment at startup to initialize global variables.

Started by tms320f28234 in TI C20009 years ago

I am working on a project porting a medium sized legacy project from a LF2407A to a 28335. In the legacy code, the software relies on the...

I am working on a project porting a medium sized legacy project from a LF2407A to a 28335. In the legacy code, the software relies on the .bss section being initialized to zero before the C code runs. For whatever reason (maybe part of the original hardware design), the old software was able to run because it assumes external memory would be initialized before it ran. When I use the emu...


simulink and i2c for c28335 dsp

Started by gast...@yahoo.com in TI C20009 years ago 1 reply

hi, i try to make a connection between dsp c28335 and msp430, i use simulink to do the i2c link, but the dsp is not responding to the msp430, i...

hi, i try to make a connection between dsp c28335 and msp430, i use simulink to do the i2c link, but the dsp is not responding to the msp430, i use the oscilloscope to see the data and clk lines, but the only thing i can see is the clock generate by the msp430 to send the slave address to dsp, but this is not responding. why???? i use the the pull up resistor in those lines, so this s not the pr...


Real FFT using sprc081

Started by namrita_shenoy in TI C20009 years ago 1 reply

Hi, I have integrated sprc081 with my project and was able to get some results. The fft.mag gave 0 for all 64 points (I used 128 point real...

Hi, I have integrated sprc081 with my project and was able to get some results. The fft.mag gave 0 for all 64 points (I used 128 point real FFT). The document mentions that for fft.calc "The N1 scaling of FFT is distributed across the stages". Probably this might be the reason. So I scaled up my input with some trial and error to get the magnitude close enough with the one calculat...


BLDC Motor Control

Started by kvai...@gmail.com in TI C20009 years ago 5 replies

Hi, I am trying to run an incremental encoder based motor from F2812 using PMSM3_4.(reference code). I am able to run the motor upto build level...

Hi, I am trying to run an incremental encoder based motor from F2812 using PMSM3_4.(reference code). I am able to run the motor upto build level 3. But when I am trying to match the encoder angle against the ramp generated angle, its not matching. but i am moving the shaft by hand and reading the angle, then i get correct angle.that means whenever i am trying to read angle in 20KHz ISR for PWM gen...


Writing a value in a certain memory location

Started by baha...@hotmail.com in TI C20009 years ago 4 replies

Hi all, I am using F2812 TI dsp. I want to write a value in a certain memory location. The value is"0x0003" its address is...

Hi all, I am using F2812 TI dsp. I want to write a value in a certain memory location. The value is"0x0003" its address is "0x00200D". I am not sure if there is a way to write that in C. If you can please tell me about the assembly code which should be used to perform such task and how to include it in a C code? Best regards, Bahaa _____________________________________ ...


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