Content originally posted in LPCWare by sunilforu@gmail.com on Tue Aug 05 19:32:18 MST 2014
Hi,
I am new to LPC firmware programming.
I am using LPC11u68 Xpresso Board.I have connected two pins.
PIO0_4 --SCL
PIO0_5--SDA. to my I2C salve device and trying to read the data through
API Chip_I2C_MasterTransfer() but I see no activity on the probe and also its always
stuck at Chip_I2C_EventHandler()
When used as GPIO I can see some activity on the probe but as IO pin no activity on the bus
I want someone to
1. Verify(if something is missing) or provide the the I2C initialization required.
Chip_I2C_Init(I2C0);
Chip_I2C_SetClockRate(I2C0, 100000);
Chip_I2C_SetMasterEventHandler(I2C0, Chip_I2C_EventHandler);
NVIC_EnableIRQ(I2C0_IRQn);
2. Do I have set/change in the board_sysinit.c some MUX configuration for pin 4 and 5.
Any sample implementation for I2C salve device is highly appreciated.
Regards
Sunil
