嵌入式系统中低成本热敏打印设计

Low Cost Design of Thermal Printout in Embedded System

热敏打印机作为嵌入式系统应用的重要组成部分,在系统成本中占有较大的比重。本设计用ARM7TDMI芯片S3C4510B构成嵌入式系统,并将行式热敏打印头LTP347嵌入到系统内部,简要介绍了行式热敏打印机的工作原理、uClinux操作系统向ARM芯片的移植、打印控制程序的设计等。此设计方案充分利用了嵌入式系统的软硬件资源,降低了系统成本,具有高性能及较强的实用性。

The thermal printer is a key part of the application of embedded system, it takes great proportion in the system cost. The thermal print header LTP347 is embedded into the system based on S3C4510B, the principle of the thermal printer is simply introduced, the process of the transplant of uClinux to ARM and the program design of thermal head control are also mentioned. The design makes full use of the resource of the embedded system, lowers the cost of system. It is very practical.