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Discussion Groups | TMS320C54x | Device driver for 5402 DSK on board UART using DSP/BIOS
Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).
Device driver for 5402 DSK on board UART using DSP/BIOS - pradbelur - Jan 24 6:15:00 2002
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Hi all, We are developing a device driver for the 16C550CFN uart, present on the 5402 DSK. The driver is based on the streams IO model of DSP/BIOS.We are facing the following problem: When the SIO_get internally calls the DXX_issue function , the issue function is being called twice for one invocation of SIO_get.Inside DXX_issue we are having a mechanism for maintaining the order of the buffers for 2 buffers.These buffers were alllocated statically using the configuration tool. The streams are also statically configured. If any one of u has a solution for this, please reply at the earliest. Regards, pradeep. |
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