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Hi, The answer is in the code itself. When the macro expands, the line will read printf statement followed by two semicolons. So the compiler sees effectively more than one "line" of code. You can avoid this by removing the semicolon either at the end of macro definition or at the end of macro...
I'm trying to establish communication with DSP 6727 with a PowerPC 82xx series host processor. I notice that after the host writes some large chunks of data to DSP, it hangs and the Ready pin will not be deasserted. It looks like the DSP is lost.
Is there anyone who has made this...
Re: Modbus RTU Help
Implementing Modbus RTU between two PIC microcontrollers would be quite easy if you use the UART peripheral. You need to ensure that the timing constraints mentioned by the protocol are taken care. But you can always ignore these if you do not want to connect your...
Suppose I have shared a folder/file in a PC (operating on Windows OS), lets say PC1, which is connected to LAN. Now I access this shared folder/file by another PC (PC2) on the LAN. Is there any method to track that PC2 had accessed the shared folder/file in PC1?
If so, how? and what are the...
I'm using TMS320F2812 DSP and SDFlash utility for programming the flash. I'm using the Spectrum Digital's XDS510PP emulator. I've programmed the DSP such that after power on it immediately goes to power down mode (HALT mode in particular). Only NMI can wake up the device from...
I'm using TMS320F2812 DSP. I use the spectrum digital's SDFlash utility to program this device. When I'm trying to erase the device, it displays the following warning:
WARNING: THE CONTENTS OF THE SECURITY PASSWORD LOCATIONS IN THE FLASH MAY NOT BE IN THE EXPECTED STATE. FOR FURTHER DEBUG...
As you have already identified that your application will be having two motors, now you need to choose the stepper motor that suits your application. Then you need to interface the PIC microcontroller with the stepper motor. Depending upon the stepper motor specifications you need...
Re: spi interface
As with every SPI interface, first you need to check whether Master is generating the clock pulses according to your defined frequency. Use an oscilloscope to check all the waveforms (CLK, MOSI and CS). The chip select should be active while doing the...
Lot of free applications are readily available in internet which will serve your purpose. Typically they access the PC COM port and send the data you require. You just need to make sure of the physical layer (RS232 / TTL) and the baud rate settings.
One such good software is...
Re: HELP!! Control dc motor speed with PIC16F877a using hi-t
Are you sure that RB0 is continuously made high?
If not, then according to the code, the CCPR1L register value is changed and
thus you may not be getting the proper output.
Also you can remove the initializations...
I'm using Texas Instruments DSP TMS320F2812. I need to use the NMI feature. From the available documentation I could not understand how to acknowledge the NMI interrupt once it occurs. There are acknowledge bits for all the other interrupts & interrupt groups (for example PIEACK in...
I have come across many PC based softwares that often forget to release the control over COM port once they are done with the job. In such cases, no other application can access the serial port as the windows displays that already the COM port is in use. I've observed that restarting the PC...
When the peripheral of a microcontroller is performing a job, if a interrupt arrives, at what instance will the interrupt be serviced ? How much latency should we consider?
Assme that a microcontroller is sending a byte on UART. After the first bit is transferred, an external...
Question on TMS320F2812
In TMS320F2812 I'm using the external interface (XINTF) for accessing an external RAM. I need to use the DMA feature provided on the chip. I notice that the data sheet always refers to the "hold mode" being enabled for DMA to function.
But in the XINTCNF2 register...
ucos windows port
Hi Aravind Kumar Singh,
Running uC/OS-II applications on PC is very simple. You readily get the port available on the micrium website. Just download the 80x86 port (ports are available depending on the memory model) from www.micrium.com.
You can download the one which is...
Hi abhay kulkarni,
You can tap the RS485 lines, convert into RS232 levels by using some hardware and feed them to PC. In the PC, any generic / custom software can be used to identify whether the devices on the bus are communicating or not.
Port for 8051 is already available for download in Micrium website. You can right away start developing your application.
You can download it from the following link:
labview serial port search frame
You will get lot of information in the internet about how to develop a simple protocol that suits your needs. But with respect to LabView you need to know how to use the byte array and serial port concepts.
You can study the following attachments...