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Altera_Forum
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21 years ago

about programable UART Baudrate

the readme.txt of the board_diag show that: * - UART test * Tests UART functionality for the UART defined as STDOUT. * * Currently, only tested on the JTAG UART device. the component ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

ffone13,

My guess is that you don't have the ioctl code included, the comment at the top of the driver gives you some clues

/*

* To reduce the code footprint of this driver, the ioctl() function is not

* included by default. If you wish to use the ioctl features provided

* below, you can do so by adding the option : -DALTERA_AVALON_UART_USE_IOCTL

* to CPPFLAGS in the Makefile (or through the Eclipse IDE).

*/

If this does not solve the problem then either step into the ioctl call to find the offending line, or set a breakpoint in the ioctl code inside the UART driver to find where the problem is.