msp430fr4133 驱动 8 路复用（八条COM）的LCD 玻璃

2019-03-24 08:14发布

站内问答 / TI MCU
3181 1 1263
  参考  MSP430FR4133 LaunchPad™ Development Kit (MSP‑EXP430FR4133)，可以获得 MSP430FR4133 驱动4路复用（四条COM）程序，但修改为8路复用的时候，总是不能正常显示，能否帮忙分析问题在哪里或者给个8路复用的案例?     代码如下：
// L0~L25  pins selected
LCD_E_setPinAsLCDFunctionEx(LCD_E_BASE, LCD_E_SEGMENT_LINE_0, LCD_E_SEGMENT_LINE_25);

LCD_E_initParam initParams = LCD_E_INIT_PARAM;
initParams.clockDivider = LCD_E_CLOCKDIVIDER_3;
initParams.muxRate = LCD_E_8_MUX;
initParams.segments = LCD_E_SEGMENTS_ENABLED;// Init LCD as 8-mux mode
LCD_E_init(LCD_E_BASE, &initParams);// LCD Operation - Mode 3, internal 3.02v, charge pump 256Hz
LCD_E_setVLCDSource(LCD_E_BASE, LCD_E_INTERNAL_REFERENCE_VOLTAGE, LCD_E_EXTERNAL_SUPPLY_VOLTAGE);
LCD_E_setVLCDVoltage(LCD_E_BASE, LCD_E_REFERENCE_VOLTAGE_2_96V);LCD_E_enableChargePump(LCD_E_BASE);
LCD_E_setChargePumpFreq(LCD_E_BASE, LCD_E_CHARGEPUMP_FREQ_16);// Clear LCD memory
LCD_E_clearAllMemory(LCD_E_BASE);// Configure COMs and SEGs
// L0 = COM0, L1 = COM1, L2 = COM2, L3 = COM3
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_25, LCD_E_MEMORY_COM0);
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_24, LCD_E_MEMORY_COM1);
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_23, LCD_E_MEMORY_COM2);
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_22, LCD_E_MEMORY_COM3);
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_21, LCD_E_MEMORY_COM4);
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_20, LCD_E_MEMORY_COM5);
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_19, LCD_E_MEMORY_COM6);
LCD_E_setPinAsCOM(LCD_E_BASE, LCD_E_SEGMENT_LINE_18, LCD_E_MEMORY_COM7);// Select to display main LCD memory
LCD_E_selectDisplayMemory(LCD_E_BASE, LCD_E_DISPLAYSOURCE_MEMORY);// Turn on LCD
LCD_E_on(LCD_E_BASE);


原理图如下：

显示用的程序如下：

LCDMEM[LCD_E_SEGMENT_LINE_0] = 0xFF;
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1条回答
ruyi1pei2003
2019-03-24 10:58
< LCDMEM[LCD_E_SEGMENT_LINE_0] = 0xFF;         LCDMEM[LCD_E_SEGMENT_LINE_1] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_2] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_3] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_4] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_5] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_6] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_7] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_8] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_9] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_10] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_11] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_12] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_13] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_14] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_15] = 0xFF; LCDMEM[LCD_E_SEGMENT_LINE_16] = 0xFF;         LCDMEM[LCD_E_SEGMENT_LINE_17] = 0xFF;

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