TI中文支持网Part Number:LP8860-Q1
8860寄存器设置值.xlsx
8860寄存器读取值-左边.txt
[00078835][CA53_0] Left backlight Reg 0: 0x0 [00078836][CA53_0] Left backlight Reg 1: 0x0 [00078836][CA53_0] Left backlight Reg 2: 0xD**+++ [00078836][CA53_0] Left backlight Reg 3: 0xDF**+++ [00078837][CA53_0] Left backlight Reg 4: 0x0 [00078838][CA53_0] Left backlight Reg 5: 0x0 [00078839][CA53_0] Left backlight Reg 6: 0x0 [00078840][CA53_0] Left backlight Reg 7: 0x0 [00078840][CA53_0] Left backlight Reg 8: 0x0 [00078841][CA53_0] Left backlight Reg 9: 0x0 [00078841][CA53_0] Left backlight Reg 10: 0x0 [00078842][CA53_0] Left backlight Reg 11: 0x0 [00078842][CA53_0] Left backlight Reg 12: 0x0 [00078842][CA53_0] Left backlight Reg 13: 0x7C+++ [00078843][CA53_0] Left backlight Reg 14: 0x8 [00078843][CA53_0] Left backlight Reg 15: 0x0 [00078844][CA53_0] Left backlight Reg 16: 0x0 [00078844][CA53_0] Left backlight Reg 17: 0x0 [00078844][CA53_0] Left backlight Reg 18: 0x10 [00078845][CA53_0] Left backlight Reg 19: 0x4temp [00078845][CA53_0] Left backlight Reg 20: 0x42** temp [00078846][CA53_0] Left backlight Reg 21: 0xD** 电流 [00078846][CA53_0] Left backlight Reg 22: 0xDF**电流 [00078847][CA53_0] Left backlight Reg 23: 0x19 [00078847][CA53_0] Left backlight Reg 24: 0x98**PWM [00078847][CA53_0] Left backlight Reg 25: 0x80 [00078848][CA53_0] Left backlight Reg 26: 0x0 [00078848][CA53_0] Left backlight Reg 27: 0x0 [00078849][CA53_0] Left backlight Reg 28: 0x0 [00078850][CA53_0] Left backlight Reg 29: 0x0 [00078850][CA53_0] Left backlight Reg 30: 0x0 [00078851][CA53_0] Left backlight Reg 31: 0x0 [00078851][CA53_0] Left backlight Reg 32: 0x0 [00078852][CA53_0] Left backlight Reg 33: 0x0 [00078852][CA53_0] Left backlight Reg 34: 0x0 [00078853][CA53_0] Left backlight Reg 35: 0x0 [00078853][CA53_0] Left backlight Reg 36: 0x6 [00078853][CA53_0] Left backlight Reg 37: 0x0 [00078854][CA53_0] Left backlight Reg 38: 0x0 [00078856][CA53_0] Left backlight Reg 39: 0x0 [00078856][CA53_0] Left backlight Reg 40: 0x0 [00078857][CA53_0] Left backlight Reg 41: 0x0 [00078857][CA53_0] Left backlight Reg 42: 0x0 [00078857][CA53_0] Left backlight Reg 43: 0x0 [00078858][CA53_0] Left backlight Reg 44: 0x0 [00078858][CA53_0] Left backlight Reg 45: 0x0 [00078859][CA53_0] Left backlight Reg 46: 0x0 [00078859][CA53_0] Left backlight Reg 47: 0x0 [00078860][CA53_0] Left backlight Reg 48: 0xB [00078860][CA53_0] Left backlight Reg 49: 0x0 [00078860][CA53_0] Left backlight Reg 50: 0x0 [00078861][CA53_0] Left backlight Reg 51: 0x0 [00078861][CA53_0] Left backlight Reg 52: 0x0 [00078862][CA53_0] Left backlight Reg 53: 0x0 [00078862][CA53_0] Left backlight Reg 54: 0x0 [00078862][CA53_0] Left backlight Reg 55: 0x0 [00078863][CA53_0] Left backlight Reg 56: 0x0 [00078863][CA53_0] Left backlight Reg 57: 0x0 [00078864][CA53_0] Left backlight Reg 58: 0x0 [00078864][CA53_0] Left backlight Reg 59: 0x0 [00078865][CA53_0] Left backlight Reg 60: 0x0 [00078865][CA53_0] Left backlight Reg 61: 0x0 [00078867][CA53_0] Left backlight Reg 62: 0x0 [00078867][CA53_0] Left backlight Reg 63: 0x0 [00078868][CA53_0] Left backlight Reg 64: 0x2B** [00078868][CA53_0] Left backlight Reg 65: 0x68 [00078869][CA53_0] Left backlight Reg 66: 0x89** [00078869][CA53_0] Left backlight Reg 67: 0x43 [00078869][CA53_0] Left backlight Reg 68: 0x17** [00078870][CA53_0] Left backlight Reg 69: 0xD7** [00078871][CA53_0] Left backlight Reg 70: 0xAA** [00078872][CA53_0] Left backlight Reg 71: 0xFF [00078873][CA53_0] Left backlight Reg 72: 0x2 [00078873][CA53_0] Left backlight Reg 73: 0x94** [00078873][CA53_0] Left backlight Reg 74: 0xE5** [00078874][CA53_0] Left backlight Reg 75: 0x34** [00078874][CA53_0] Left backlight Reg 76: 0xF2 [00078875][CA53_0] Left backlight Reg 77: 0x11 [00078875][CA53_0] Left backlight Reg 78: 0xF4** [00078876][CA53_0] Left backlight Reg 79: 0x5F** [00078876][CA53_0] Left backlight Reg 80: 0x0 [00078877][CA53_0] Left backlight Reg 81: 0xDE [00078877][CA53_0] Left backlight Reg 82: 0x77 [00078877][CA53_0] Left backlight Reg 83: 0x9C** [00078878][CA53_0] Left backlight Reg 84: 0xC0** [00078878][CA53_0] Left backlight Reg 85: 0x0 [00078879][CA53_0] Left backlight Reg 86: 0x0 [00078880][CA53_0] Left backlight Reg 87: 0x0 [00078880][CA53_0] Left backlight Reg 88: 0x0 [00078880][CA53_0] Left backlight Reg 89: 0x0 [00078881][CA53_0] Left backlight Reg 90: 0x0 [00078881][CA53_0] Left backlight Reg 91: 0x0 [00078883][CA53_0] Left backlight Reg 92: 0x0 [00078883][CA53_0] Left backlight Reg 93: 0x0 [00078884][CA53_0] Left backlight Reg 94: 0x0 [00078884][CA53_0] Left backlight Reg 95: 0x0 [00078885][CA53_0] Left backlight Reg 96: 0x69 [00078885][CA53_0] Left backlight Reg 97: 0x80 [00078885][CA53_0] Left backlight Reg 98: 0xDC [00078886][CA53_0] Left backlight Reg 99: 0xF2 [00078886][CA53_0] Left backlight Reg 100: 0xDF [00078887][CA53_0] Left backlight Reg 101: 0xE5 [00078887][CA53_0] Left backlight Reg 102: 0xF0 [00078887][CA53_0] Left backlight Reg 103: 0x77 [00078889][CA53_0] Left backlight Reg 104: 0x77 [00078890][CA53_0] Left backlight Reg 105: 0xE1 [00078890][CA53_0] Left backlight Reg 106: 0x3F [00078890][CA53_0] Left backlight Reg 107: 0xB7 [00078891][CA53_0] Left backlight Reg 108: 0x17 [00078891][CA53_0] Left backlight Reg 109: 0xEF [00078892][CA53_0] Left backlight Reg 110: 0xB1 [00078892][CA53_0] Left backlight Reg 111: 0x83 [00078893][CA53_0] Left backlight Reg 112: 0xCE [00078893][CA53_0] Left backlight Reg 113: 0x72 [00078893][CA53_0] Left backlight Reg 114: 0xE5 [00078894][CA53_0] Left backlight Reg 115: 0x5 [00078894][CA53_0] Left backlight Reg 116: 0x35 [00078895][CA53_0] Left backlight Reg 117: 0x6 [00078895][CA53_0] Left backlight Reg 118: 0xDC [00078896][CA53_0] Left backlight Reg 119: 0xCF [00078896][CA53_0] Left backlight Reg 120: 0x3E
8860寄存器读取值-右边.txt
[00078897][CA53_0] Right backlight Reg 0: 0x0 [00078898][CA53_0] Right backlight Reg 1: 0x0 [00078899][CA53_0] Right backlight Reg 2: 0x9**+++ [00078901][CA53_0] Right backlight Reg 3: 0x80**+++ [00078902][CA53_0] Right backlight Reg 4: 0x0 [00078903][CA53_0] Right backlight Reg 5: 0x0 [00078904][CA53_0] Right backlight Reg 6: 0x0 [00078906][CA53_0] Right backlight Reg 7: 0x0 [00078907][CA53_0] Right backlight Reg 8: 0x0 [00078908][CA53_0] Right backlight Reg 9: 0x0 [00078909][CA53_0] Right backlight Reg 10: 0x0 [00078910][CA53_0] Right backlight Reg 11: 0x0 [00078911][CA53_0] Right backlight Reg 12: 0x0 [00078912][CA53_0] Right backlight Reg 13: 0x7C+++ [00078913][CA53_0] Right backlight Reg 14: 0x8 [00078914][CA53_0] Right backlight Reg 15: 0x0 [00078915][CA53_0] Right backlight Reg 16: 0x0 [00078917][CA53_0] Right backlight Reg 17: 0x0 [00078918][CA53_0] Right backlight Reg 18: 0x10 [00078920][CA53_0] Right backlight Reg 19: 0x4 temp [00078921][CA53_0] Right backlight Reg 20: 0x27** temp [00078922][CA53_0] Right backlight Reg 21: 0x9**电流 [00078923][CA53_0] Right backlight Reg 22: 0x80**电流 [00078924][CA53_0] Right backlight Reg 23: 0x19 [00078925][CA53_0] Right backlight Reg 24: 0x96**PWM [00078926][CA53_0] Right backlight Reg 25: 0x80 [00078927][CA53_0] Right backlight Reg 26: 0x0 [00078928][CA53_0] Right backlight Reg 27: 0x0 [00078929][CA53_0] Right backlight Reg 28: 0x0 [00078930][CA53_0] Right backlight Reg 29: 0x0 [00078931][CA53_0] Right backlight Reg 30: 0x0 [00078933][CA53_0] Right backlight Reg 31: 0x0 [00078934][CA53_0] Right backlight Reg 32: 0x0 [00078935][CA53_0] Right backlight Reg 33: 0x0 [00078936][CA53_0] Right backlight Reg 34: 0x0 [00078937][CA53_0] Right backlight Reg 35: 0x0 [00078939][CA53_0] Right backlight Reg 36: 0x6 [00078940][CA53_0] Right backlight Reg 37: 0x0 [00078941][CA53_0] Right backlight Reg 38: 0x0 [00078942][CA53_0] Right backlight Reg 39: 0x0 [00078943][CA53_0] Right backlight Reg 40: 0x0 [00078944][CA53_0] Right backlight Reg 41: 0x0 [00078945][CA53_0] Right backlight Reg 42: 0x0 [00078946][CA53_0] Right backlight Reg 43: 0x0 [00078947][CA53_0] Right backlight Reg 44: 0x0 [00078948][CA53_0] Right backlight Reg 45: 0x0 [00078950][CA53_0] Right backlight Reg 46: 0x0 [00078951][CA53_0] Right backlight Reg 47: 0x0 [00078952][CA53_0] Right backlight Reg 48: 0xB [00078953][CA53_0] Right backlight Reg 49: 0x0 [00078954][CA53_0] Right backlight Reg 50: 0x0 [00078956][CA53_0] Right backlight Reg 51: 0x0 [00078957][CA53_0] Right backlight Reg 52: 0x0 [00078958][CA53_0] Right backlight Reg 53: 0x0 [00078959][CA53_0] Right backlight Reg 54: 0x0 [00078960][CA53_0] Right backlight Reg 55: 0x0 [00078961][CA53_0] Right backlight Reg 56: 0x0 [00078962][CA53_0] Right backlight Reg 57: 0x0 [00078963][CA53_0] Right backlight Reg 58: 0x0 [00078964][CA53_0] Right backlight Reg 59: 0x0 [00078965][CA53_0] Right backlight Reg 60: 0x0 [00078967][CA53_0] Right backlight Reg 61: 0x0 [00078968][CA53_0] Right backlight Reg 62: 0x0 [00078969][CA53_0] Right backlight Reg 63: 0x0 [00078970][CA53_0] Right backlight Reg 64: 0x69** [00078971][CA53_0] Right backlight Reg 65: 0x68 [00078972][CA53_0] Right backlight Reg 66: 0x59** [00078973][CA53_0] Right backlight Reg 67: 0x43 [00078974][CA53_0] Right backlight Reg 68: 0x1A** [00078975][CA53_0] Right backlight Reg 69: 0xDA** [00078976][CA53_0] Right backlight Reg 70: 0x95** [00078977][CA53_0] Right backlight Reg 71: 0xFF [00078978][CA53_0] Right backlight Reg 72: 0x2 [00078979][CA53_0] Right backlight Reg 73: 0xAD** [00078980][CA53_0] Right backlight Reg 74: 0x6B** [00078981][CA53_0] Right backlight Reg 75: 0x33** [00078983][CA53_0] Right backlight Reg 76: 0xF2 [00078984][CA53_0] Right backlight Reg 77: 0x11 [00078985][CA53_0] Right backlight Reg 78: 0xEC** [00078986][CA53_0] Right backlight Reg 79: 0x5B** [00078987][CA53_0] Right backlight Reg 80: 0x0 [00078989][CA53_0] Right backlight Reg 81: 0xDE [00078990][CA53_0] Right backlight Reg 82: 0x77 [00078991][CA53_0] Right backlight Reg 83: 0x9A** [00078992][CA53_0] Right backlight Reg 84: 0xE0** [00078993][CA53_0] Right backlight Reg 85: 0x0 [00078994][CA53_0] Right backlight Reg 86: 0x0 [00078995][CA53_0] Right backlight Reg 87: 0x0 [00078996][CA53_0] Right backlight Reg 88: 0x0 [00078997][CA53_0] Right backlight Reg 89: 0x0 [00078998][CA53_0] Right backlight Reg 90: 0x0 [00078999][CA53_0] Right backlight Reg 91: 0x0 [00079000][CA53_0] Right backlight Reg 92: 0x0 [00079001][CA53_0] Right backlight Reg 93: 0x0 [00079002][CA53_0] Right backlight Reg 94: 0x0 [00079003][CA53_0] Right backlight Reg 95: 0x0 [00079006][CA53_0] Right backlight Reg 96: 0x69 [00079007][CA53_0] Right backlight Reg 97: 0x80 [00079008][CA53_0] Right backlight Reg 98: 0xDC [00079009][CA53_0] Right backlight Reg 99: 0xF2 [00079010][CA53_0] Right backlight Reg 100: 0xDF [00079011][CA53_0] Right backlight Reg 101: 0xE5 [00079012][CA53_0] Right backlight Reg 102: 0xF0 [00079013][CA53_0] Right backlight Reg 103: 0x77 [00079014][CA53_0] Right backlight Reg 104: 0x77 [00079015][CA53_0] Right backlight Reg 105: 0xE1 [00079017][CA53_0] Right backlight Reg 106: 0x3F [00079018][CA53_0] Right backlight Reg 107: 0xB7 [00079019][CA53_0] Right backlight Reg 108: 0x17 [00079020][CA53_0] Right backlight Reg 109: 0xEF [00079021][CA53_0] Right backlight Reg 110: 0xB1 [00079025][CA53_0] Right backlight Reg 111: 0x83 [00079026][CA53_0] Right backlight Reg 112: 0xCE [00079027][CA53_0] Right backlight Reg 113: 0x72 [00079028][CA53_0] Right backlight Reg 114: 0xE5 [00079029][CA53_0] Right backlight Reg 115: 0x5 [00079030][CA53_0] Right backlight Reg 116: 0x35 [00079031][CA53_0] Right backlight Reg 117: 0x6 [00079036][CA53_0] Right backlight Reg 118: 0xDC [00079037][CA53_0] Right backlight Reg 119: 0xCF [00079039][CA53_0] Right backlight Reg 120: 0x3E
您好
我目前使用LP8860A;
有问题如下。
我使用了两个LP8860A，分别驱动两个TFT屏背光。
设置了一样的电流（89mA）和调光PWM（100%），但是实测的电流都不是89mA。且不一致。一个是130mA，一个是40mA。
设置寄存器条件如下：
外部电阻调节关闭（EN_EXT_LED_CUR_CTRL=0）。
调光方式(BRT_MODE[1:0]是00)是PWM。
设置电流LED_CURRENT_CTRL[11:0]是2432（二进制）。 DRV_LED_CURRENT_SCALE[0:2]是111=150mA.
电流矫正是0% (DRV_OUT1_CORR[3:0]=0111)
外部NTC功能关闭；
模式是Display模式；
附件：
设置的寄存器如附件EXCEL文档：
读出的寄存器如附件TXT文档：
请问问题可能在哪？寄存器没写成功？
另外有个问题：DISP_CLx_BRT寄存器为何写不进去?
写EEPROM这段说明是什么意思
zhe lin：
按公式计算
2432/4095*150*1=89mA.
,
Johnsin Tao：
Hi
先不用程序，直接用硬件Iset配置89mA输出电流看看？（避免配置上的错误）， 如果硬件上没有问题，然后再用你的配置来做，包括调光之类都是可以的。
,
zhe lin：
LP8860没办法用纯硬件设置的吧？
,
zhe lin：
你看公式，那3个寄存器是需要用的。哪怕是用了外部电阻设置的。
,
Johnsin Tao：
HI 不配置寄存器就是按照默认配置工作。
如果你要配置，先reset到默认配置，写入时注意时序，之前异常异常可能是没有配置进去（按照同样的配置，不应该出现2类异常）。
