4 Mar
2007
4 Mar
'07
10:33 p.m.
I have an 8541 board with a number of I2C chips and am having trouble understanding the use of inm & inw. I can iprobe, but when I try to write the first byte to zero, I get an error. The chip at address 70 is a Philips PCA9538 with four registers and I am trying to write the first register at offset zero to the value zero.
Can someone help me understand the error of my ways.
Charles
sff=> iprobe Valid chip addresses: 2A 2D 37 57 58 59 68 70 sff=> help imd imd chip address[.0, .1, .2] [# of objects] - i2c memory display sff=> imd 70 0.1 4 0000: 7f 7f 7f 7f .... sff=> inm.b 70 0 00000000: 7f ? 0 Error writing the chip. 00000000: 7f ? . sff=>