MTK驱动.doc

1.配置GPIO 并初始化l gpio_drv.c内的void GPIO_init(void) 进行初始化1. DRV_WriteReg(GPIO_MODE1,0x0000) 设置模式2. DRV_Reg(GPIO_DIR1) |= 0x00FF 设置方向 0 GPIOs are configured as input1 GPIOs are configured as output2.audio_pa配置音频对应Driver部分主要需要留意以下三支档案：afe.c AMP gpo settingaudcoeff.c 首先需要注意是的output channel的配置，配置错误将出现没有声音的现象。(见audio_驱动.pdf) 此文件需要注意output channel 、 FIR setting和echo参数的设置audcoeff_default.h 定义 语音增强参数nvram_default_audio.c 此文件主要配置各音阶的音量AUD_VOLUME_CTN ：call waiting tone, error tone, warning toneAUD_VOLUME_KEY ：keypad toneAUD_VOLUME_MIC ：microphone inputAUD_VOLUME_FMR ：FM radio soundAUD_VOLUME_SPH ：speech sound (during phone call)AUD_VOLUME_SID ：side tone (sound loop-back)AUD_VOLUME_MEDIA ：music1. 设置模式,方向,上拉 gpio_drv.c 里配置2. afe.c 文件里void AFE_SwitchExtAmplifier( char sw_on )设置3. afe2.c 文件里void AFE_TurnOnExtAmplifier( void ) void AFE_TurnOffExtAmplifier( void )进行调用.3.触摸屏先初始化,后期是自动配置1. 在eint_var.c里看中断 2. touch_panel_spi.h 配GPIO 口3. touch_panel_spi.c Implement serial interface4. touch_panel_custom.c Set ADC and coordinate calibration4.FM 1. RDA5800_SerialComm.c 配GPIO 口2. RDA5800_drv.c 函数的实现5.跑马灯背光灯1. custom_equipment.c 或者 uem_gpio.c 中找 2. SN3726_LIGHT_LED3. lcd_backlight_set6.MT6318 driver1. pmic_custom.c2. Engineer mode3. *#3646633# =Device=PMIC7.工程模式参数1. CustResDef.h8.软件调speecher大小1. Audcoeff.c2. DG_DL_SPEECH = 0X1000 指 gain = 13. DG_MICPHONE = 0X1400 最大0x2000 gain = 29.项目（6225平台），原先做的900/1800双频，校准综测都是正常的。后来有需要改成850/1900频段，于是修改l1d_custom_rf.h里面的SWAP为1，软件重新编译后，用FLASHTOTL下载到机器里，开机，直接呼叫850/1900，一切正常，灵敏度都有-108左右。但是发现经过校准后（校准可以通过）屏幕上直接就没有信号了，不能呼出电话。用META测试，发射正常，但是接收通路好像不通。我们这边修改过校准的CFG和INI文件，都没有用处1. 請修改，然后用Meta 校准。2. Frequency Bank3. bank = 0x1210.ADC检测通路adc_channel.c11充电电阻设置a. 在校准文件里设置 .cfg文件b. chr_parameter.c 2.5,/*ADC_ISENSE_RESISTANCE_FACTOR*/ /*1/0.4*串电阻*/(公式1 除以 电阻值 为前面的值)c. pmic_custom.c 看配置的参数 例:CHR_CURRENT_45011. Traces UART端口设置 nvram_common_config.c12. MP3 采样率检测函数 av_bt.c 文件 av_bt_aud_info_to_cfg 可知.13.开机程序: BootupApp.c 关同程序: ShutdownApp.c14.G_sensor motion_sensor.c15. 关机USB 判断 usb_custom.cpwic.c void PW_PowerInit(void)mcucustomdrvmisc_drvpmic_custom.c#define AC_CHR_CURRENT CHR_CURRENT_450#define USB_CHR_CURRENT CHR_CURRENT_450另: static void CHR_USB_EINT_HISR(void) 充电中断函数請你們driver在 PWIC.C的如下函數中加延時.void PW_PowerInit(void)Comment:Dear customer,void PW_PowerInit(void)會調用PW_is_charger_usb_present()來判斷是chg還是USB開机。請在函數PW_is_charger_usb_present()中按如下修改：添加delay的那段代碼就好了/ use adc to distinguish between charger & usbUSB_Phy_Enable(USB_PHY_OWNER_BMT);/USB_PowerControl(KAL_TRUE);/ Add delay, We found there may be unstable effect when turn on USB power; need de-bounce timevolatile kal_uint32 debounce;for (debounce=0;debounce10000;debounce+);/DRV_Reg(DRVPDN_CON2_CLR) = DRVPDN_CON2_AUXADC;#if defined(_OLD_PDN_DEFINE_)DRV_Reg(DRVPDN_CON2_CLR) = DRVPDN_CON2_AUXADC;#elif defined(_CLKG_DEFINE_) / #if defined(_OLD_PDN_DEFINE_)DRV_Reg(CG_CLR2) = CG_CON2_AUXADC;#endif / #if defined(_OLD_PDN_DEFINE_)if(adc_channel对于 平台是MT6225,SW 版本是08B.W0852.a.进工模-音频-语音增强-LoudSp Mode先确认参数Speech_LoudSpk_Mode_Para16=96, 224, 5256, 0, 58197, 0, 400, 0, 4112,5365, 0, 0, 0, 0, 0, 0;红色的值先默认不动。b.确认audcoeff.c文件里的DG_DL_Speech=0x1000（0dB=20log（4096/4096）；如果此值设置成0x7FFF（转化成10进制32767），增益就是20log（32767/4096）=18dBDG_Microphone=0x1400 算法同上这两个值是DSP里面的数字增益，与语音增强参数7不一样的，改大不仅容易失真，而且底噪会变大，所以请确认此值没有改动。c.请确认模拟增益不要设置过大，尽量不要超过112，最大也不要超过128。外部Audio PA的增益放大尽量不要超过4倍。进工模-音频-LoudSp Mode-Speech 确认。d.如果耳机模式下底噪不明显，那么请将免提模式下的AGC 关掉。在audcoeff_default.h中将define DEFAULT_AGC_MODE_LOUDSPK 4 语句的4改成0.AGC Mode Description0: The AGC is turned off.1: Non-Aggressive AGC. 2: Mid-Low aggressive AGC. 3: Mid-High aggressive AGC. 4: Most aggressive AGC. 2. 自动测试模式下 MIC 、REC 声音小-进工程模式-audio-normal mode-microphone-volume4在工程模式里面加大microphone 的vol4。进工程模式-audio-normal mode-Speech-volume4在工程模式里面加大这个值。这两个值最大是255，不过测试完之后，请将值 还原。因为：microphone 的vol4影响到录音的音量。Speech 的vol4影响到正常 通话第4级的音量。3.开关机铃声小，我要在软件里改哪些参数。-进工程模式-audio-normal mode-Melody-音量等级可以调节（调节的是audio buffer的模拟增益）在软件也可以修改：软件在nvram_default_audio.c#define GAIN_NOR_MED_VOL 3#define GAIN_NOR_MED_VOL0 16#define GAIN_NOR_MED_VOL1 32#define GAIN_NOR_MED_VOL2 48#define GAIN_NOR_MED_VOL3 64#define GAIN_NOR_MED_VOL4 80#define GAIN_NOR_MED_VOL5 96#define GAIN_NOR_MED_VOL6 1123. ADC 校准 CFG 文件里，MAX_VOLTAGE_DIFFERENCE = 0.04 MAX_CURRENT_DIFFERENCE = 0.04 这两个值是做什么用的，有时候检测电压与电池电压相差太多的话，我把它设为:0.01-这个是限定一个范围，在这个范围内都是正常的，其实是没有必要修改的。下面是ADC校准的流程，请参考：1. Command output voltage of power supply to ADC_V1.2. Measure output voltage of power supply. The output voltage is named as ADC_Measure_Voltage_0.3. Command the target to do ADC measurement using BATTERY_CHANNEL and CHARGER_CHANNEL. The measure count is ADC_MEASUREMENT_COUNT in configuration file. The measurement result is BATTERY_ADC_Output_0 and CHARGER_ADC_Output_0.4. Command output voltage of power supply to ADC_V2.5. Measure output voltage of power supply. The output voltage is named as ADC_Measure_Voltage_1.6. Command the target to do ADC measurement using BATTERY_CHANNEL and CHARGER_CHANNEL. The measure count is ADC_MEASUREMENT_COUNT in configuration file. The measurement result is BATTERY_ADC_Output_1 and CHARGER_ADC_Output_1.7. Calculate ADC slope and offset of BATTERY_CHANNEL and CHARGER_CHANNEL by the following formulaslope (BATTERY_CHANNEL) = (ADC_Measure_Voltage_1 - ADC_Measure_Voltage_0) / ( BATTERY_ADC_Output_1 - BATTERY_ADC_Output_0)offset(BATTERY_CHANNEL) = ADC_Measure_Voltage_0 - slope(BATTERY_CHANNEL)* BATTERY_ADC_Output_0slope(CHARGER_CHANNEL) = (ADC_Measure_Voltage_1 - ADC_Measure_Voltage_0) / (CHARGER _ADC_Output_1 - CHARGER _ADC_Output_0)offset(CHARGER_CHANNEL) = ADC_Measure_Voltage_0 - slope(CHARGER_CHANNEL) * CHARGER_ADC_Output_08.Apply slope and offset of all other ADC channel except CHARGER_CHANNEL to slope(BATTERY_CHANNEL) and offset(BATTERY_CHANNEL).9.Save slope and offset of all ADC channel to NVRAM.10.Get CHARGER_ADC_Predict_Voltage1 and BATTERY_ADC_Predict_Voltage1 by the following formulaBATTERY_ADC_Predict_Voltage1 = (offset(BATTERY_CHANNEL) + slope(BATTERY_CHANNEL) *BATTERY_ADC_Output_1) /1000000.0CHARGER_ADC_Predict_Voltage1 = (offset(CHARGER_CHANNEL) + slope(CHARGER_CHANNEL) * CHARGER_ADC_Output_1) /1000000.011.Calculate current difference by the following formulacurrent_difference = |BATTERY_ADC_Predict_Voltage - CHARGER_ADC_Predict_Voltage| / ADC_RESISTANCEIf current_difference is large than MAX_CURRENT_DIFFERENCE, ADC current difference check fail, abort ADC check procedure. Otherwise, ADC current difference check pass.Note: ADC_RESISTANCE, MAX_CURRENT_DIFFERENCE is specified in configuration file.12. Command output voltage of power supply to ADC_CHECK_VOLTAGE, ADC_CHECK_VOLTAGE is specified in configuration file.13. Measure output voltage of power supply. The output voltage is named as ADC_Measure_Voltage_2.14.Command the target to do ADC measurement using BATTERY_CHANNEL. The measure count is ADC_MEASUREMENT_COUNT in configuration file. The measurement result is BATTERY_ADC_Output_2.15.Get BATTERY_ADC_Predict_Voltage2 and CHARGER_ADC_Predict_Voltage2 by the following formulaBATTERY_ADC_Predict_Voltage2 = (offset(BATTERY_CHANNEL) + slope(BATTERY_CHANNEL) *BATTERY_ADC_Output_2) /1000000.016.Calculate the voltage difference by the following formulavoltage_difference = | BATTERY_ADC_Predict_Voltage2 - ADC_Measure_Voltage_2|If voltage_difference is large than MAX_VOLTAGE_DIFFERENCE, ADC voltage difference check is fail, Otherwise, ADC current difference check pass.17.Check slope(BATTERY_CHANNEL) and offset(BATTERY_CHANNEL) in the range. (i.e. MIN_BATTERY_ADC_SLOPE = slope(BATTERY_CHANNEL) = MAX_BATTERY_ADC_SLOPE, MIN_BATTERY_ADC_OFFSET = offset(BATTERY_CHANNEL) = MAX_BATTERY_ADC_SLOPE). If slope(BATTERY_CHANNEL) and offset(BATTERY_CHANNEL) is outside the range, ADC slope and offset check is fail, abort ADC check procedure. Otherwise, ADC slope and offset check is pass.Note:The value of ADC_V1, ADC_V2, ADC_CHECK_VOLTAGE, MAX_BATTERY_ADC_SLOPE, MIN_BATTERY_ADC_SLOPE, MAX_BATTERY_ADC_OFFSET, MIN_BATTERY_ADC_OFFSET,BATTERY_CHANNEL, CHARGER_CHANNEL, ADC_RESISTANCE, MAX_VOLTAGE_DIFFERENCE,MAX_CURRENT_DIFFERENCE and ADC_MEASUREMENT_COUNT is specified in section ADC table in configuration file.4.如果你有相关校准原理的文档，请发给我学习一下。上面是校准的流程，我举个例子来说明，应该可以很好的理解 ADC table ADC_V1 = 3400 ADC_V2 = 4200ADC_CHECK_VOLTAGE = 3600NORMAL_VOLTAGE = 3800CURRENT_LIMIT = 3000MAX_BATTERY_ADC_SLOPE = 5550MIN_BATTERY_ADC_SLOPE = 5250MAX_BATTERY_ADC_OFFSET = 1000000MIN_BATTERY_ADC_OFFSET = -1000000BATTERY_CHANNEL = 0 CHARGER_CHANNEL = 1ADC_RESISTANCE = 0.22MAX_VOLTAGE_DIFFERENCE = 0.04MAX_CURRENT_DIFFERENCE = 0.04ADC_MEASUREMENT_COUNT = 1000*ADC_V1 is the voltage of ADC calibration point1,unit=mVADC_V2 is the voltage of ADC calibration point2,unit=mVADC_CHECK_VOLTAGE is the voltage of ADC calibration check,unit=mVNORMAL_VOLTAGE is the voltage of power supply after calibration finish,unit=mVMAX_BATTERY_ADC_SLOPE is the maximum limitation of battery ADC slopeMIN_BATTERY_ADC_SLOPE is the minimum limitation of battery ADC slopeMAX_BATTERY_ADC_OFFSET is the maximum limitation of battery ADC offsetMIN_BATTERY_ADC_OFFSET is the maximum limitation of battery ADC offsetBATTERY_CHANNEL is the first channel to do ADC calibrationCHARGER_CHANNEL is the second channel to do ADC calibrationADC_RESISTANCE is the resistance when do ADC current limitation checkMAX_VOLTAGE_DIFFERENCE is the maximum voltage difference between voltage of power supply and estimated voltage,unit=VMAX_CURRENT_DIFFERENCE is the maximum current difference,unit=AADC_MEASUREMENT_COUNT = 1000 is the ADC measurement count*以下所有的数据均是自己根据校准的所假设的数据，不要作为参考对比数据。注意：BATTERY_CHANNEL 和CHARGER_CHANNEL 要选对ADC_RESISTANCE 充电电阻要与实际相符合自动校准具体校准流程描述如下：1.通过GPIB设置power supply 输出电压为3.400000V，实际可能程控电压可能有误差，所以再通过GPIB命令读出power supply 输出电压，假设为3.400840V2. 读出ADC转换之后的结果 BATTERY_ADC_Output0假设为619.900000读出ADC转换之后的结果CHARGER _ADC_Output0假设为619.9120003. 通过GPIB设置power supply 输出电压为4.200000V，实际可能程控电压可能有误差，所以再通过GPIB命令读出power supply 输出电压，假设为4.210300V4. 读出ADC转换之后的结果 BATTERY_ADC_Output1假设为 767.100000读出ADC转换之后的结果CHARGER _ADC_Output1假设为767.0235005.算出BATTERY_ADC_Slope=(4.210300-3.400840)*1000000/ (767.100000-619.900000)=5499BATTERY_ADC_OFFSET=3.400840*1000000-5499*619.9=-7990CHARGE_ADC_Slope=(4.210300-3.400840)*1000000/ (767.023500-619.912000)=5502CHARGE_ADC_OFFSET=3.400840*1000000-5502*619.912000=-99166. Start writting ADC slope and offset to flash- 开始进行ADC current limit check7. 再读出ADC转换一次之后的结果 BATTERY_ADC_Output2假设为767.234000计算BATTERY_ADC_Predict_Voltage=(5499*767.2340000-7990)/1000000=4.211030再读出ADC转换一次之后的结果 CHARGE _ADC_Output2假设为768.100000计算CHARGE _ADC_Predict_Voltage=(5502*768.100000-9916)/1000000=4.216170CURRENT_DIFFERENCE=|4.211030-4.216170|/0.22=0.023364 MAX_CURRENT_DIFFERENCE pass- 开始进行ADC voltage limit check8. 通过GPIB设置power supply 输出电压为ADC_CHECK_VOLTAGE 3.600000V，实际可能程控电压可能有误差，所以再通过GPIB命令读出power supply 输出电压，假设为3.599990V9. 读出ADC转换之后的结果 BATTERY_ADC_Output2假设为648.8434