beginners question (urgent)

Started by Simone Winkler in comp.dsp15 years ago 5 replies

Hello! I'm starting with the programming of a TMS320F2812 on a exDSP F2812 board. There is a LED on this board, connected to the XF-pin of the...

Hello! I'm starting with the programming of a TMS320F2812 on a exDSP F2812 board. There is a LED on this board, connected to the XF-pin of the DSP. The only thing I want to do is to say hello to the DSP-world and let the LED blink. But it doesn't work!! As I understood, I have to look at the GPFIO14 bit. But the GPIO-ports are multiplexed and I can't find out which setting is the one ...


Read/Write to GPIO!

Started by Ali in comp.dsp13 years ago 6 replies

Hey eeryOne, My complier reports it as "Not an lvalue";-)And i'm trying todo somthing like : X:GPIO_B_DDR = ( 1 < < var )...

Hey eeryOne, My complier reports it as "Not an lvalue";-)And i'm trying todo somthing like : X:GPIO_B_DDR = ( 1 < < var ) ; X:GPIO_B_DDR = (1 < < | 1 < < var2 ) ; Any idea how to fix it for CW ? I can compile following line but can't load the variable value. asm(move #1, X:GPIO_B_DDR); // It is OK int some =34; asm(move #@ABS(some), X:GPIO_B_DDR); // an ERROR here And how ab


Keypad Interfacing - newbie Question

Started by skn in comp.dsp12 years ago 1 reply

Hi I'm working on TMS320F2812, a 32-bit DSP processor. I have to interface my processor with a Keypad that basically has 6 Keys. I...

Hi I'm working on TMS320F2812, a 32-bit DSP processor. I have to interface my processor with a Keypad that basically has 6 Keys. I understand that the interfacing has to be done through the GPIO's of the processor. Can anyone give me any pointers on how to get started ??? a mini tutorial or brief How to is what I'm looking for to help me get started. thanks skn


How to manage several acqusitions on TMS320

Started by domistep in comp.dsp15 years ago 1 reply

HEre is my question ... I have 20 acquistions to realise on a TMS320F28xx (100 Mips) The sample rate is 1khz. If i don t use the ADC of the...

HEre is my question ... I have 20 acquistions to realise on a TMS320F28xx (100 Mips) The sample rate is 1khz. If i don t use the ADC of the TMS230F28xx , Is it possible to use 20 external ADC linked with the TMS320 with SPI ? But especially, is the GPIO Mux able to manage silmunatous input acquisition? Or do i have to use a time delay between 2 acquistions? Thank you


I2C on TMS320C5510

Started by rickman in comp.dsp13 years ago 7 replies

I am looking to use the AIC31 codec with a TMS320C5510 and I have not found much good info at ti.com on how to do this. Seems the 5510 is the...

I am looking to use the AIC31 codec with a TMS320C5510 and I have not found much good info at ti.com on how to do this. Seems the 5510 is the only member of the family without an I2C port built in. I was looking at bit banging the GPIO port to do this and I am not sure you can make the port act like an open collector output. The data sheet says the data register is for reading the input w...


Help needed with TI C6711 DSK

Started by L. Bawr in comp.dsp14 years ago 6 replies

Hi everyone, I am looking for a trick to output 6 (binary) signals simultaneously from the C6711 DSK board to feed a RF circuit. To retrieve...

Hi everyone, I am looking for a trick to output 6 (binary) signals simultaneously from the C6711 DSK board to feed a RF circuit. To retrieve these signals from the board I would like to avoid any external module (daughter card or home made circuits) because we have a limited budget for a small demo. I know c6x Dsp's have GPIO registers that might be very useful but I don't how to make a c...


Help getting from eval kit to debugable prototype board.

Started by Robert Norman in comp.dsp16 years ago 4 replies

Hi, I need to get a prototype DSP board up and running ASAP and was looking at the TI320LF2406 and the Motorola 56F803. Based somewhat on...

Hi, I need to get a prototype DSP board up and running ASAP and was looking at the TI320LF2406 and the Motorola 56F803. Based somewhat on price and GPIO pinouts I selected the TI part and got the eZDSP system kit thinking (incorrectly it appears) that I could develop and then move a design to a prototype board and debug the prototype without additional hardware. It is now sinking in that...


Interfacing a ADC to the TMS320F2812

Started by domistep in comp.dsp15 years ago 3 replies

Hello, I read the application report of TI about how Interfacing a ADC to the TMS320F2812 ... I have a simple question !!! I didn t...

Hello, I read the application report of TI about how Interfacing a ADC to the TMS320F2812 ... I have a simple question !!! I didn t understood where i have to connect the 16 bits parallel output from the ADC, on the DSP !!! Does the output of the ADC go on an GPIO configured as input for the DSP ? thank you jean


Small footprint DSP

Started by pinit in comp.dsp14 years ago 6 replies

Hi, I'm looking for a DSP board with TMS320C64xx or c67xx. I need a board with small footprint. I need an access to the HPI , all McBSP ports ,...

Hi, I'm looking for a DSP board with TMS320C64xx or c67xx. I need a board with small footprint. I need an access to the HPI , all McBSP ports , GPIO and external interrupts pins and MAC (TCP/IP). Thanks for helping Pini PS I want to connect the DSP HPI to an A2D converter. Can I use a flat cable (15-50cm) with a BUS transfer rate of 5-10Mhz. Should I use a line driver (...


Reducing slew rate - for TI DSP

Started by gutta in comp.dsp8 years ago 6 replies

Hi, i am using TI-C6452 DSP of 720MHz. The DSP has the peripherals FPGA ,DDR2. I want to reduce the slew rate or driver strength to control the...

Hi, i am using TI-C6452 DSP of 720MHz. The DSP has the peripherals FPGA ,DDR2. I want to reduce the slew rate or driver strength to control the GPIO I/O, especially for EMIF.Do some one know any bit corresponding to slew rate or driver strength in any of the specs of the TI DSP? or is there any method to do it? Regards, Ramana.


SPI or McBSP for Waveform Generator( TI dsp F2812)

Started by vickykulkarni in comp.dsp13 years ago 1 reply

Hi I am using the TI DSP eZdspf2812 DSP as a waveform generator. It is interfaced with a microcontroller. Basically the DSP acts as an...

Hi I am using the TI DSP eZdspf2812 DSP as a waveform generator. It is interfaced with a microcontroller. Basically the DSP acts as an encoder, ie it accepts a finite number of bits (1s & 0s) from the microcontroller and generates a waveform corresponding to the bits. Is the GPIO good for this interface between the DSP & microcontroller? Also the waveform goes to a D/A converter. Is it bet...


Texas 280x and 283x wakeup from Halt

Started by Torgeir Jakobsen in comp.dsp12 years ago

The 280x and 283x DSCs ca be waken up from halt mode on alle gpio pins on port A, but do anyone know if the controller also knows which pin...

The 280x and 283x DSCs ca be waken up from halt mode on alle gpio pins on port A, but do anyone know if the controller also knows which pin signal has waken it up ? In my previous project I used the 2812 and had to connect an external io-expander to handle wakeup from 4 external interrupt sources and to find out which interrupt it was. I hope this is not necessary on the 280x and 283x. I plan...


GPIO in C6713

Started by kostbill in comp.dsp14 years ago 3 replies

Hello. I am using this code #include #define GPIO_ENABLE_ADDRESS 0x01B00000 #define GPIO_DIRECTION_ADDRESS 0x01B00004 #define...

Hello. I am using this code #include #define GPIO_ENABLE_ADDRESS 0x01B00000 #define GPIO_DIRECTION_ADDRESS 0x01B00004 #define GPIO_VALUE_ADDRESS 0x01B00008 void main( void ) { int* GPIO_ENABLE_REGISTER,* GPIO_DIRECTION_REGISTER, * GPIO_VALUE_REGISTER ; GPIO_ENABLE_REGISTER = (int*)GPIO_ENABLE_ADDRESS ; GPIO_DIRECTION_REGISTER = (int*)GPIO_DIRECTION_ADDRESS ;