描述
18. 樹莓派 Raspberry Pi SPI 64 GPIO 擴充模組(23s17)
商品說明：
1. JP18 GA0 ~ GA7 U13 Port A
JP19 GB0 ~ GB7 U13 Port B
2. JP25 AA0 ~ AA7 U14 Port A
JP24 BA0 ~ BA7 U14 Port B
3. JP20 GC0 ~ GC7 U15 Port A
JP21 GD0 ~ GD7 U15 Port B
4. JP22 DA0 ~ DA7 U16 Port A
JP23 EA0 ~ EA7 U16 Port B
5. R61, R62, R63 ( for U13 Address select A0, A1, A2 )
6. R64, R65, R66 ( for U14 Address select A0, A1, A2)
7 R80, R81, R82 ( for U15 Address select A0, A1, A2 )
8. R88, R89, R90 ( for U16 Address select A0, A1, A2)
9. U13 (000) 23s17-1 Port A, B U14 (001) 23s17-2 Port A,B
10. U15 (002) 23s17-3 Port A, B U16 (003) 23s17-4 Port A,B
11. Scratch指令及應用範例 Detail
U1 to U4 spi 23s17 address 40, 42, 44, 46
U1 to U2 spi 23s17 address 40, 42
40 –> 1
42 –> 2
44 –> 3
46 –> 4
48 –> 5
4a –> 6
4c –> 7
4e –> 8
Command “sp”+ “address(1-8)” + “a” +”bit(1 to 8)” for Port A
Command “sp”+ “address(1-8)” + “b” +”bit(1 to 8)” for Port B
Command “bits”+ “address(1-8)” + “a” +”bit(8 to 1)” for Port A
Command “bits”+ “address(1-8)” + “b” +”bit(8 to 1)” for Port B
sp2b7 –> spi address 2 Port B bit 7 ON/OFF
sp3b4 –> spi address 3 Port B bit 4 ON/OFF
bits2b01010101 –> address 2 port B from bit 8 to 11
output –> 01010101
bits2a01010101 –> address 2 port A from bit 8 to 1
output –> 01010101
bits2aoff –> address 2 Port A all OFF/clear
bits2aclr –> address 2 Port A all OFF/clear
相關資料：
商品內容：
1x Rs-Pi SPI 23s17-4 – 64 GPIO board
1x User Manual
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