SPI Performance

W5500 Performance

W5500 SPI transmission

• Cortex-M3

  • Loopback Test(Only TCPs/1CH)

• MCU : STM32F103C8 - Development Tool : CoIDE v1.7.4 - ARM Ver : 4.7 2013q2 - Main Clock : 72MHz, SPI Clock(Max) : 36MHz - Test Project :W5500_SPI_Performance.zip
• Test Tool : AX2, unit of measure: Mbps

buf(KB)\socket(KB)	1	2	4	8	16
1	2.648	3.208	3.208	3.208	3.195
2	X	2.779	3.342	3.337	3.337
4	X	X	3.384	3.407	3.407
8	X	X	X	3.441	3.443
16	X	X	X	X	3.284

• buf : memory of MCU/socket : socket size of W5500

• Cortex-M0

  • Loopback Test(Only TCPs/1CH)

• MCU : M0516LBN - Development Tool : CoIDE v1.7.4 - ARM Ver : 4.7 2013q2 - Main Clock : 50MHz, SPI Clock(Max) : 25MHz - Test Project :W5500_SPI_Performance.zip
• Test Tool : AX2, unit of measure : Mbps

buf(KB)\socket(KB)	1	2	4	8	16
1	1.49	1.624	1.624	1.624	1.624
2	X	1.592	1.693	1.693	1.693

• Memory Size (Flash/SRAM)
  • STMicro STM32F103C8 (64KB / 20KB)
  • Nuvoton M0516LBN (64KB / 4KB)

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Data throughput according to SPI clock speed

• Cortex-M3

  • Loopback Test

• MCU : STM32F103C8 - Development Tool : CoIDE v1.7.4 - ARM Ver : 4.7 2013q2 - Main Clock : 72MHz, SPI Clock : 36MHz/18MHz/9MHz/4.5MHz/2.25MHz/1.12MHz/0.562Mz/0.281MHz - Test Project: SPI_SPEEP_TEST.zip
• Test Setting : Only TCPs / 1CH / Databuf(2K) / No Delay ack X - Test Tool : AX2, unit of measure : Mbps

Hz /socket(KB)	1	2	4	8	16
0.281M	0.124	0.126	0.129	0.129	0.129
0.562M	0.243	0.249	0.257	0.257	0.257
1.12M	0.447	0.456	0.484	0.484	0.484
2.25M	0.761	0.779	0.863	0.863	0.863
4.5M	1.196	1.226	1.417	1.418	1.418
9M	1.621	1.671	2.090	2.090	2.093
18M	2.055	2.108	2.738	2.738	2.738
36M	2.435	2.534	3.501	3.501	3.501

• SPI36MHz / SOCKBUF16K / DATABUF16K / No Delay ACK : 3.63Mbps
• socket : socket size of W5500
• Test result : SPI_SPEED_TEST.xls