K60 RTS/CTS lines and MQX not working?

[jpa]

Any secrets to getting HW handshaking working on the K60N512 and MQX?  

What I have:

* A jumper on J13 7-8 on the TWR-SER board

* A jumper on J18 1-2 on the TWR-SER board

* The other standard jumpers for the K60 demos

* I open the port using fopen(devname, (char const *) IO_SERIAL_HW_FLOW_CONTROL);

* For kicks, I poll the hardware line using ioctl(dev, IO_IOCTL_SERIAL_GET_HW_SIGNAL, &signals) and test for IO_SERIAL_CTS and IO_SERIAL_RTS and the result of the test doesn't change, even though I can see the signal changing with a breakout box.  

* serial port is configured using the interrupt driver

Transmissions from the K60 board continue no matter the state of the external pins...which I guess makes sense if MQX can't see the proper state of the pins either.  

JPA

[jpa]

Well, I thought I had it by defining

BSPCFG_ENABLE_TTYD_HW_SIGNALS

in the user_config.h file, but after rebuilding the BSP and PSP, it's still no go.  (or rather, still no 'stop')

JPA

[Dekiru]

Hi,

Can you change to using pooling in stead of interrupt?

Look at the MQX code, you can see that they limited hardware hanshaking for polling only intentionally.

Regards

[jpa]

Thanks for the suggestion, I'll give it a try.  

I wonder why that is, though?  Does it say why in the code?  Handshaking is built into the hardware, so I wouldn't have thought it would complicate the interrupt handling.  

I'm new to MQX so I may be missing something, but polling seems antithetical to a multi-tasking RTOS.  

JPA