I am trying to perform an I/O Loopback test for the safety function ETH2A of the TMS570LS31x.
The environment to check is <Hercules Safety MCU Development Kit TMS 570 MCU>.
The transmission is completed normally, but the reception is not completed.
My source code is as follows.
Please let me know if there is a mistake.
The function called in the code is a function generated by HALCoGen04.05.01.
I will ask you just in case.
Is loopback using MACCONTROL register internal loopback?
****** CODE *****************************************************************************
void TestEthLpbk(void) {
hdkif_t *hdkif;
hdkif = &hdkif_data[0U];
boolean retValue;
uint8 tx_data[60U] = { /* Test data for transmission */
0x00, 0x80, 0x2F, 0x25, 0x56, 0xBA, 0x98, 0x90, 0x96, 0xD8 };
uint8 rx_data[60U] = {0U}; /* Receive buffer */
uint16 dataLen = 60U;
pbuf_t pbuf = { NULL, tx_data, dataLen, dataLen };
uint16 rcvLen = 0U;
uint16 cnt;
/* Initialize EMAC for sending and receiving */
EMACHWInit( selftestmacAdd );
EMACRMIISpeedSet(EMAC_BASE, EMAC_RMIISPEED_100MBPS);
/* Enable Loopback */
Dp83640EnableLoopback( hdkif->mdio_base, hdkif->phy_addr );
EMACEnableLoopback( hdkif->emac_base );
/* Data transmission */
retValue = EMACTransmit( hdkif, &pbuf );
if( retValue == TRUE ) {
/* Receive data */
EMACReceive( hdkif );
rcvLen = hdkif->rxchptr.active_head->bufoff_len;
for( cnt = 0U; cnt < rcvLen; cnt++ ) {
rx_data[cnt] = HWREGB((hdkif->rxchptr.active_head->bufptr)+cnt);
}
/* Data Verify */
for( cnt = 0U; cnt < rcvLen; cnt++ ) {
if( tx_data[cnt] != rx_data[cnt] ) {
/* Loopback fault */
}
}
}
else {
/* Failed to send data */
}
/* Disable Loopback */
EMACDisableLoopback( hdkif->emac_base );
Dp83640DisableLoopback( hdkif->mdio_base, hdkif->phy_addr );
return;
}
