On-board programming method of CPCI board card configuration chip based on PCI9054

Abstract

The invention relates to an on-board programming method for a CPCI board card configuration chip based on PCI9054, and belongs to the field of industrial control and signal processing. A pin 1, a pin 2, a pin 3, a pin 4, a pin 5 and a pin 8 of a CPCI board card configuration chip D1 are connected with one ends of six pins E1-E6 respectively, and the ends serve as connecting ends of the six pins E1-E6 respectively; in the normal use process of the board card, the pins 1 and 2 of the E1-E6 are connected through jumper caps; when the D1 is programmed or upgraded, a jumper cap between a first pin and a second pin of E1-E6 needs to be disconnected, so the D1 is physically connected with other chips on the board; the connecting ends of the six pins E1-E6 are connected with the pins 1, 2, 3, 4, 5 and 8 of the programmer through Dupont lines, and the D1 can be programmed / upgraded after connection is completed. Through the on-board isolation circuit, independent programming / upgrading of the CPCI board card configuration chip is realized, the problems of EEPROM disassembly, board card wire flying, resistor jumper connection, hot-line operation and the like are avoided, and debugging and batch production of board cards are facilitated.

Description

technical field [0001] The invention belongs to the field of industrial control and signal processing, and in particular relates to a method for programming on a PCI9054-based CPCI board configuration chip, in particular to the programming of a PCI9054 configuration chip. This scheme can be used without secondary welding of the board In this case, complete the programming / upgrading of the configuration chip on the board. Background technique [0002] There are currently two main methods for programming the PCI9054 configuration chip. The first method is to select the EEPROM packaged in DIP8 at the beginning of the design. Before the production of the board is completed, use the programmer to program the EEPROM, and then solder the EEPROM on the board. Once the EEPROM needs to be upgraded again, the EEPROM needs to be soldered off, reprogrammed and then soldered back to the board. Frequent soldering will cause damage to the E2PROM and is not conducive to subsequent batch pro...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to provide a method for programming on the board of the CPCI board configuration chip based on PCI9054, so as to solve the problem of board card in the programming / upgrade process of the CPCI board (PCI9054) configuration chip in mass production Problems with welding flying leads, resistance, or live operation

Images