NET OS 6'1 Training

1
NETOS 6.1 Training
2
Updates to BSP Configuration for TCP/IP and
Ethernet
3
Low Interrupt Latency

• BSP_LOW_INTERRUPT_LATENCY TRUE
• semaphore used for TCP/IP stack critical
  section.
• BSP_LOW_INTERRUPT_LATENCY - FALSE
• processor interrupts used for TCP/IP stack
  critical section.

4
BSP_ENABLE_FAST_IP

• Fast IP is not supported for low interrupt
  latency.
• BSP_ENABLE_FAST_IP enables Fast IP.

5
BSP_CACHE_NETWORK_HEAP

• Network heap partitioned for better performance
• Network packets only - APP_NET_HEAP_SIZE
• The rest of TCP/IP data ½ APP_NET_HEAP_SIZE
• BSP_CACHE_NETWORK_HEAP FALSE network packet
  heap is in cache-safe memory.
• If BSP_CACHE_NETWORK_HEAP TRUE
• Ethernet driver uses NABeforeDMA().

6
BSP_WAIT_FOR_IP_CONFIG

• BSP_WAIT_FOR_IP_CONFIG TRUE
• BSP waits for an IP address configured on at
  least one interface before calling
  applicationStart().
• BSP_WAIT_FOR_IP_CONFIG FALSE
• applicationStart() is called without waiting for
  an IP address. Application should use
  customizeAceGetInterfaceAddrInfo().

7
Updates To MII

• MII Interrupt is level interrupt
  customizeIsMiiInterruptActiveLow()
• Set Increased MII Drive Strength for the NS9750
  development board.