一种基于NAND FLASH基带数据模拟源的设计与实现

Design and implementation of data simulator based on NAND FLASH

摘要:

针对卫星数传分系统基带数据模拟源的要求，提出了基于FPGA控制的NAND FLASH解决方案，阐述了该方案的硬件和软件的设计与实现，对NAND FLASH的读、写、擦除的操作时序进行了研究。单片FLASH最高读取速率可达250 Mbps，可通过多片FLASH芯片并行读取达到更高的读取速率。试验表明，该方案实现的卫星数传分系统基带数据模拟源可以有效模拟卫星数传分系统所需的数据模拟源，满足卫星数传分系统测试的需求。

Abstract:

Aimed at the requirements of the baseband data simulator in satellite data transmission system, a NAND FLASH solution is put forward based on Field Programmable Gate Array(FPGA) control. The hardware and software designs and implementation of the NAND FLASH solution are described, and the operation sequences of reading, writing and erasure in NAND FLASH are studied. The highest rate of single chip FLASH reading can reach up to 250 Mbps. Multiple FLASH chips reading in parallel can achieve a higher reading rate. The experimental results show that the proposed scheme can effectively simulate the data source in satellite data transmission system, and meet the requirements of system test.