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Re: -- MPC8248 port


anoop r wrote:
Hi,
i got some output one the serial por configured using SCC1. was just a
bit of timing issues. no whats happening is that the first redboot promt
appears, but the board isnt taking any input and still goes into an infinte
loop. this happens in the function "mon_read_char_with_timeout. oh yes, this port os from the mpc8260 based VADS board configuration.


thanls in advance

anoop r wrote:

Hi, i'm trying to port ecos to the MPC8248 based EP8248e board. it had linux on-board previously. i used the variant hal from the rattler port. i'm stuck at a point where the SMC is initialised and the control has reached cyg_start. now diag_printf goes into an inifinite loop waiting for the transmit buffer to get ready. it is happening in the function "cyg_hal_plf_serial_putc".

Firstly, the VADS port was never viable; I wouldn't base *anything* on it. Starting from the Rattler port would be your wisest move.

As for your problems with the SMC port - have you set up
the clock mux register properly (cpm_mux_cmxsmr for the
SMC devices, cpm_mux_cmxscr for SCC)?  Are you sure that
the input problem is not at your host end?  Are you trying
to use hardware handshaking on the serial ports?


-- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------

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