Content originally posted in LPCWare by dalzan on Thu May 26 15:35:14 MST 2016
Hi,
I have NGX LPC-4330-Xplorer board;
pins U0_TXD (9), U0_RXD (10) and GND (1) are interconnected to FTDI cable C232HD pins RXD,TXD,GND.
I tried to debug project "periph_uart_rb" from package lpcopen_2_12_lpcxpresso_ngx_xplorer_4330.zip
On start it prints initial text:
LPC18xx/43xx UART example using ring buffers
Press a key to echo it back or ESC to quit
but when i press any key there is no echo, no reaction at all.
I think it should repeat the char pressed and LED should toggle.
I measured the FTDI cable and there is 115200 Bd 1Start+8Data+1Stop bit on its TX output pin as expected.
I have the TX and RX pins interconnected through 2k2 resistor to avoid damage,
but later during testing also tried to connect cable_TX to LPC_RX directly, no success.
Also tried project "periph_uart", no reaction to pressed key, only prints some text.
Any idea what could be wrong or what to try ?
