def write_old(self, addr, val):
try:
dpmem_direct_ext.config_output()
dpmem_direct_ext.set_addr(addr)
wiringpi.digitalWrite(DP_CE, 0)
wiringpi.digitalWrite(DP_W, 0)
dpmem_direct_ext.set_data(val)
finally:
wiringpi.digitalWrite(DP_W, 1)
wiringpi.digitalWrite(DP_CE, 1)
return val
def read_old(self, addr):
try:
dpmem_direct_ext.config_input()
dpmem_direct_ext.set_addr(addr)
wiringpi.digitalWrite(DP_CE, 0)
wiringpi.digitalWrite(DP_R, 0)
val = dpmem_direct_ext.get_data()
finally:
wiringpi.digitalWrite(DP_R, 1)
wiringpi.digitalWrite(DP_CE, 1)
return val