MPC5748G config SJA110

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MPC5748G config SJA110

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yong_ban
Contributor I

Hi : My MCU platform is MPC5748G, connect with SJA1105 through DSPI;The system architecture is as follows:
MPC5748G connect the first SJA1105 through MII1, then connect the second SJA1105 MII0 through MII4;
Switchconfigure.c is NXP official configuration code (mcu connect sja1105 MII0);
Switchconfigure change.c is my code, I need change the port to MII1 from MII0, so I change the configuration; But SJA1105 unable to configure successfully, can you help to check the configuration? tks

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bpe
NXP TechSupport
NXP TechSupport

First of all, it is unclear what was meant with "NXP official configuration code",
if this is an officially released code, it should have a package
name, package identifier, version, the name of the file where the functions you
are trying to re-use are defined, etc.

At a brief glance, your code seem to be writing all MII port 1 CGU registers
to invalid addresses:

static const uint8_t port1_mii_tx_clk[] = {0x01|0x80,0x00,0x01,0x30, ...

The value in red looks like the address of  MII port 0 TX Clk config CGU register rather than port1. Suggestion:
review your code, compare carefully what and where it writes against
AH1601, Sections 2.3 and 2.4. Similar mistakes seem to appear in all port1 initialization values.

Hope it helps,

Platon

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