how to change network interface speed from 100mbps to 10mbps in FRDMK64

[sudhakarp]

hi,

     i want to know how to change 100-MBps to 10-MBps speed in FRDMk64.

i am using kds2.0 IDE. (serial to ethernet example)

thanks and regards,

sudhakar p

[Luis_Garabo]

Hi Sudhakar,

For MQX classic version (MQX 4.x) this is the method:

You can change this setting in the ENET_default_params[] structure which is located in the file init_enet.c. In that structure change the second element from "Auto_Negotiate" to "Half_Duplex_10M" or "Full_Duplex_10M". For example:

const ENET_PARAM_STRUCT ENET_default_params[BSP_ENET_DEVICE_COUNT] = {
    {
        &ENET_0,
        Full_Duplex_10M,
        ENET_OPTION_RMII | ENET_OPTION_PTP_MASTER_CLK

For MQX for SDK version this is the method:

Look for the function ENET_HAL_SetMac() in the file fsl_enet_hal.c and replace the value "kEnetCfgSpeed100M" with "kEnetCfgSpeed10M". For instance:

if(!macCfgPtr->rmiiCfgPtr)    
{        
  enet_config_rmii_t rmiiCfg;        
  rmiiCfg.duplex = kEnetCfgFullDuplex;        
  rmiiCfg.speed = kEnetCfgSpeed10M;       
  rmiiCfg.mode = kEnetCfgRmii;      
  rmiiCfg.isLoopEnabled = false;        
  rmiiCfg.isRxOnTxDisabled = false;        
  ENET_HAL_SetRMIIMode(base, &rmiiCfg);    
}

Hope this helps.

Have a great day,
Garabo

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