Hi Jim, Thanks for getting back to me so quickly, I'm afraid to say it was a typo, my fault,sorry! a movlw where there should be a movwf agggh! As a penace I've copied and pasted a bit of my programme, the nack stuck me for a bit, hope its help for someone! ;*******************Start bit subroutine************************** ; This routine generates a Start condition ;by geoffers - Serial & I2C Devices
Hi all, I've got a bv4618 on the i2c bus of my 18f2523, got the display working no problem, the keypad has been tricky (I was sending a ack rarther than a nack!) However now I have it reading the number of presses no problem. (send 0x62 0x1b 0x10 then read). However if I send 0x62 0x1b 0x11 and then read the keypad scan code it always comes back as FF no matter which button is pressed?! I'veby geoffers - Serial & I2C Devices