MAX1233/MAX1234触摸屏控制器入门

[09-13 17:05:19]   来源：http://www.88dzw.com  控制技术   阅读：8648次

文章摘要：表21. 写入寄存器助记符 DEMO1234 CommandMnemonicSPI data inT W AC hexValueTest Write ADC_control register0x0040 hexValueT W DC hexValueTest Write DAC_control register0x0042 hexValueT W DD hexValueTest Write DAC_data register0x000b hexValueT W GC hexValueTest Write GPIO_control register0x004f hexValueT W GD he

MAX1233/MAX1234触摸屏控制器入门,标签：计算机控制技术,工厂电气控制技术,http://www.88dzw.com

表21. 写入寄存器助记符 
DEMO1234 Command
 Mnemonic 
SPI data in
T W AC hexValue
 Test Write ADC_control register 
0x0040 hexValue
T W DC hexValue
 Test Write DAC_control register 
0x0042 hexValue
T W DD hexValue
 Test Write DAC_data register 
0x000b hexValue
T W GC hexValue
 Test Write GPIO_control register 
0x004f hexValue
T W GD hexValue
 Test Write GPIO_data register 
0x000f hexValue
T W GP hexValue
 Test Write GPIO_pullup register 
0x004e hexValue
T W KC hexValue
 Test Write KEY_control register 
0x0041 hexValue
T W KK hexValue
 Test Write KPCOLMASK register 
0x0051 hexValue
T W KM hexValue
 Test Write KPKEYMASK register 
0x0050 hexValue

表22. 触摸屏测量命令序列 
DEMO1234 Command
 Action (Triggered by A/D3210 Bits) 
SPI data in Sequence
T M1
 Measure X,Y 
0x0040 0x0701
0x8000 0x0000
0x8001 0x0000
T M2
 Measure X,Y,Z1,Z2 
0x0040 0x0b01
0x8000 0x0000
0x8001 0x0000
0x8002 0x0000
0x8003 0x0000
T M3
 Measure X 
0x0040 0x0f01
0x8000 0x0000
T M4
 Measure Y 
0x0040 0x1301
0x8001 0x0000
T M5
 Measure Z1,Z2 
0x0040 0x1701
0x8002 0x0000
0x8003 0x0000
T MD
 No measurement; drive Y+,Y- 
0x0040 0x3701
T ME
 No measurement; drive X+,X- 
0x0040 0x3b01
T MF
 No measurement; drive Y+,X- 
0x0040 0x3f01

6.2) 中断和状态引脚命令

表23. 引脚状态读取命令 
DEMO1234 Command
 Action 
SPI data in
P R 5
 Read KEYIRQ-bar pin status N/A
I C 0 3
 Enable KEYIRQ-bar falling-edge trigger pulse accumulator N/A
I C 0 1
 Enable KEYIRQ-bar rising-edge trigger pulse accumulator N/A
I C 0 0
 Disable KEYIRQ-bar pulse accumulator N/A
I R 0
 Read the number of times KEYIRQ-bar has pulsed low N/A
I 0 0
 Clear the KEYIRQ-bar pulse accumulator N/A
P R 6
 Read PENIRQ-bar pin status N/A
I C 1 3
 Enable PENIRQ-bar falling-edge trigger pulse accumulator N/A
I C 1 1
 Enable PENIRQ-bar rising-edge trigger pulse accumulator N/A
I C 1 0
 Disable PENIRQ-bar pulse accumulator N/A
I R 1
 Read the number of times PENIRQ-bar has pulsed low N/A
I 0 1
 Clear the PENIRQ-bar pulse accumulator N/A
P R 7
 Read BUSY-bar pin status N/A

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Tag:控制技术，计算机控制技术,工厂电气控制技术，控制技术

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