A Signal Processing Implementation for an IBM-PC-based Workstation

A Digital Signal Processor Based Instrument for Faradaic Admittance Measurements

“…The TMS32010 has been utilized in many systems for signal processing purposes. Examples of some early applications are the one already mentioned by Riedel et al [6] where the processor was used as a coprocessor for fixed point Fourier transforms, a similar application by Volkers [10] in which two memory banks were used in turn, a signal analysis instrument for frequencies below 100 kHz by Hewlett Packard [11,12,13] and a more recent speech spectrograph by L.R. Morris [14], where a factory made speech PC plug-in board and graphics board was used.…”

“…This was achieved by allowing the PC to share memory with the DSP. The design of the PC-DSP interface is similar to that of Riedel et al [6] except for the data transfer which is 16 bits wide in our system, as well as the physical position of the DSP (DSP:s). The design goals also required a close interaction between the DSP:s and analog I/O (In/Out) devices.…”

“…The reason for this is that the 8086 processor is used instead of the more common 8088. Because of this it was possible to make the interface between PC and DSP:s 16 bit wide in contrast to the case of Riedel et al [6] who used an IBM PC. The possibility to use all 16 bits made the PC more compatible with the DSP:s' 16 bit word length.…”