Interface one of those 4-digit-LED-displays produced by philips.
#!/usr/bin/python from ezusb import EZUSB ezusb=EZUSB(0x0547,0x2131) ezusb.downloadFW('iomap.hex') import time as time DSP_WR=1<<0 # 1 DSP_A0=1<<1 # 2 DSP_A1=1<<2 # 4 DSP_BL=1<<3 # 8 DSP_CLR=1<<4 # 16 time.sleep(0.1) def writeDSP(chars): ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR, ord(chars[3]) ]) ezusb.writeRAM(0x1b40,[ DSP_BL | DSP_CLR, ord(chars[3]) ]) ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR, ord(chars[3]) ]) ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR|DSP_A0, ord(chars[2]) ]) ezusb.writeRAM(0x1b40,[ DSP_BL | DSP_CLR|DSP_A0, ord(chars[2]) ]) ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR|DSP_A0, ord(chars[2]) ]) ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR|DSP_A1, ord(chars[1]) ]) ezusb.writeRAM(0x1b40,[ DSP_BL | DSP_CLR|DSP_A1, ord(chars[1]) ]) ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR|DSP_A1, ord(chars[1]) ]) ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR|DSP_A0|DSP_A1, ord(chars[0]) ]) ezusb.writeRAM(0x1b40,[ DSP_BL | DSP_CLR|DSP_A0|DSP_A1, ord(chars[0]) ]) ezusb.writeRAM(0x1b40,[DSP_WR | DSP_BL | DSP_CLR|DSP_A0|DSP_A1, ord(chars[0]) ]) while 1: writeDSP( time.strftime('%M%S') ) print "%s" % (time.strftime('%M%S')) time.sleep(0.5)