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TMS320C54x系列DSP不具有可编程的非易失片内存储器,必须外扩存储程序代码和参数的存储器,在多数场合仅仅简单的扩充此类存储器会造成系统设计的繁琐.利用AVR单片机片内大容量的flash存储器来存储DSP的程序和参数,使系统的整体设计更加紧凑,并弥补了VC5402控制和通用通信功能的不足,这不失为一种有效的解决办法.文中以VC5402为例,详细分析了AVR单片机(ATMEL64L)同VC5402的HPI接口通信硬件设计和DSP程序代码的加载方法.
TMS320C54x series DSP does not have a programmable non-volatile on-chip memory, memory must be stored outside the program code and parameters expansion, in most cases only a simple expansion of such memory will cause the system design cumbersome. Using AVR chip high-capacity Of the flash memory to store DSP programs and parameters, the overall system design more compact, and make up for the lack of VC5402 control and general communication capabilities, which may well be an effective solution.In this paper VC5402, for example, a detailed analysis of the AVR SCM (ATMEL64L) with VC5402 HPI interface communication hardware design and DSP program code loading method.