Extended Precision Radix-4 Fast Fourier Transform Implemented on the TMS320C62x
Texas InstrumentsThis paper discusses a method by which the Texas Instruments (TI)(tm) TMS320C62xx or C62xx high performance fixed point DSPs overcome the traditional advantage held by floating point DSPs -- precision and speed.Using the Radix-4 Fast Fourier Transform (FFT) this document illustrates how extended precision arithmetic multiplication in particular can be performed on the 'C62xx. Using the te
TMS470R1x DMA Restart Procedure
Texas InstrumentsIn many TMS470R1x applications direct memory access (DMA) is used to move data between the system memory and peripherals to communicate with external devices. When the external device detects a data error a request (normally an interrupt) will be sent to the TMS470 to restart the unfinished DMA block transfer. This application note presents a generic software approach to restarting the DMA chan
