Mity CPU Platforms » ARM9 Based QNX Platforms

11/15/2011

ML 03:30 PM Software Development: RE: OMAP I2C

Yes, it works (thanks): Mark Lyon

JP 03:24 PM Software Development: RE: OMAP I2C

Mark,
I probably should have used O_RDWR instead of O_RDONLY. I am surprised it worked with just O_RDONLY.
The SENDRECV is important, at least for my device. I am reading a device register and the protocol is that I need to send th... John Pruitt

ML 03:17 PM Software Development: RE: OMAP I2C

Interesting. We were using Qnx's demo which uses DCMD_I2C_RECV rather than DCMD_I2C_SENDRECV so that was part of the solution.
It is also calling open with O_RDWR rather than O_RDONLY - not sure if that is a problem.
Also the call t... Mark Lyon

JP 01:27 PM Software Development: RE: OMAP I2C

I am attaching a test program that was used on a board to read the factory config information using i2c0.
The output of the i2c_get program is: John Pruitt

11/14/2011

JP 05:13 PM Software Development: RE: OMAP I2C

Can you try to get the sample program that the qnx engineer used?
Thanks.
John Pruitt

ML 09:47 AM Software Development: RE: OMAP I2C

An engineer from QNX hooked a scope to I2C0 lines on their EVM board and sent the sendrecv command. They were able to get a signal on the lines, proving that their driver works with the utilities. They said this indicated that the BSP wa... Mark Lyon