1. modify each dirver's INIT_EXPORT micro.
2. modify the lwip parameters' in rtconfig.h
3. insert keep section .rti_fn* in IAR link file
4. change part id from TM4C129XNCZAD to TM4C1294NCPDT
1. Add ETH MAC driver using DMA for Tx and Rx lwip pBuf.
2. Modify the tivaware emac library to fix the bug that PHY read is not stable when sysclk is 120MHz
3. In PHY IRQ handler, insert a dummy reading (REG_BMSR) before read PHY_STS to force update STS register.
1. Add ETH MAC driver using DMA for Tx and Rx lwip pBuf.
2. Modify the tivaware emac library to fix the bug that PHY read is not stable when sysclk is 120MHz
3. In PHY IRQ handler, insert a dummy reading (REG_BMSR) before read PHY_STS to force update STS register.
BernardXiong
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