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DSP stands for Digital Signal Processing or Digital Signal Processor.

2
votes
2answers
The following image describes the problem: Processor 1 has no RS232 channel, but has an SPI one, so we used a UART driver and a level translator ICs. The two processors are on separate boards, and …
asked Feb 20 '12 by Abdella
1
vote
1answer
I'm going to interface a 5V CMOS DSP to the 3.3V Flex 6000 FPGA. This FPGA supports 3.3V and 5V IO according to the below figure from the datasheet: Since the FPGA I found in stock is the 3.3V … version, I must connect VCCINT and VCCIO to 3.3V. The minimum Vih of the DSP is 2V. Is it safe to connect both devices together? I'm afraid this 1.3V (3.3V - 2V) isn't enough to avoid ripples or ringing effects on the signals. …
asked Oct 10 '12 by Abdella
2
votes
1answer
I am interfacing a 3.3V FPGA to a 5V DSP. I am using this bidirectional voltage transceiver: http://www.nxp.com/documents/data_sheet/GTL2000.pdf In the diagram in page 4 they're using pull up … up resistors are required to pull the Dn outputs to VCC). The DSP I'm using is TI TMS320C31 and will be interfaced to the FPGA Cyclone EP1C6Q240C8N. Should I use pull up resistors on one of the sides or both or I don't even need them? …
asked Jul 17 '12 by Abdella
1
vote
2answers
After soldering a 132-pin surface mount DSP, I checked if there are short circuits or not using "GreenLee DM-110" multimeter. I found that the resistance between data or address pins and GND ranges … from ~1K Ohm to 1M Ohm. I know that I should measure an open circuit or several (hundreds!) mega ohms. Why is the resistance too low? Can this cause any danger to DSP operation? …
asked Jun 2 '13 by Abdella
1
vote
Problem solved and I would like to share the solution: Software Data Protection This feature is available on some flashes that requires a software sequence at the beginning of each write cycle in or …
answered Jul 22 '13 by Abdella
2
votes
1answer
I use code composer to program the TMS320C31 DSP (through MPSD) to write to the SST39SF010A flash. I can successfully write one byte to any location of the flash by following the "Chip Erase" then … written correctly in the first address but "AB" isn't. Second: We are using an FPGA in the system between the DSP and the Flash (and all other system peripherals). Data and Address of DSP is …
asked Jul 18 '13 by Abdella