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Dear all, I have some problem related to Power Supply and Ground in Daughter Board and DSK6711. Currently I am using DSK6711 as main board and CMOS Sensor+FIFO+FPGA as the daughter board. My CMOS Sensor power is 5 V, FIFO is 3.3 V and FPGA is 5 V. All power of the CMOS Sensor, FIFO, FPGA and DSK6711 have separated power supply. The signal of FIFO, CMOS Sensor, FPGA is free of noise while not connected to DSK6711 or while the DSK6711 on the reset mode or /ARE,/AOE wasnot occured. But when I run Code Composer, the /ARE, /AOE is occured, my daughter board will be efected. Expecially in the FIFO control signal and the worst case will affected to my FPGA signal. The worst case happened when I run my program which mean that /CE, /ARE, /AOE will occur simultenouly. Sometimes, my FPGA signal will disappear. I really give up about this problem. I have tried several thing to elimate this problem. The last thing that I have done is using common power source that will have common ground. But it still didnt solve this problem. I wonder to know, what is wrong with the DSK6711. All signal output from CMOS Sensor and control signal from FIFO is very good. But everytime I connect this daughter board to the DSK6711 and /ARE,/AOE and /CE occur, it will occur a lot of noise that will affect my daughter board. I really hope, somebody could help me in this problem. I have really tried to solve it by myself. I wont post this problem, If I could solve this problem. Thank you in advance. Best regards, Henrry Andrian |
Power Supply and Ground Problem in Daughter Board and DSK6711
Started by ●October 27, 2003
