RFC OMAP serial driver flow control fixes, and preparation for DMA engine conversion
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Cover letter [RFC 00/24] OMAP serial driver flow control fixes, and preparation for DMA engine conversion
Hi Sourav,
On 10/11/2012 05:21 AM, Sourav wrote:
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Quoted 7 lines
I already enable software flow control and did the testing on beagle, where things are working fine
after off mode.
But if I enable hardware flow control, the teraterm does not allow me to load my fs and uImage from mmc.
If you have any pointers on how to test hardware flow control, I will like to do that on my beagle board.
For h/w flow control, you need to check if the CTS and RTS signals are being brought out to the serial header on the beagle-board. Looking at the schematics for the 3430 beagle board, it appears that only the UART RX and TX signals are available on the serial header. Therefore, I don't believe you can test h/w flow control using the console with that board.
I do see that you can access all the UART2 signals (RX/TX/CTS/RTS) via the expansion connector on the beagle. However, to connect to a serial port on a PC you need to have a voltage level-shifter in-between. There are some companies out there that make them [1], but you need to make sure you have one that can support a 1.8V input.
Cheers
Jon