ANT Forum

I need to use Ant module(ANT11TS33M5IB) in my embedded system. The module can work if I connect module with USBANTDevBoard by Molex Header, and connect

embedded board's related pin(uart tx℞ & GND) to the Surface Mount Pin (11&12;).
Now I remove the USBANTDevBoard,and connect the Surface Mount pin to embedded system ,the module seems can't work .Why? Can anybody help me?
The pin connect as below:

PIN1 GND
PIN2 vcc
PIN3 vcc
PIN4 GND
PIN5 GND
PIN6 Vcc
PIN7 GND
PIN8 GND
PIN9 GND
PIN10 vcc
PIN11 TXD0 = connect to mcu's uart_RX
PIN12 RXD0 = connect to mcu's uart_TX
PIN13 vcc
PIN14 vcc
PIN15 GND
PIN16 GND
PIN17 not connect      

Hi passenger,

The UART interface requires additional lines to be connected to your host embedded system, particularly pin 17, the RTS line, so that your MCU can know when ANT has received a message. I would recommend reading through the "Getting Started with ANT Development in Embedded Systems" thread found here, with particular interest in reading the "Interfacing with ANT General Purpose Chipsets and Modules" document.

Cheers,
Harrison