處于手動模式下的 SG2 會生成連續脈沖，用戶可以使用 ADSR 注釋啟用和禁用該脈沖。這意味著在手動模式腳本的開頭和結尾處寫入 ADSR 注釋。請參閱節 3.1。此處不提供重啟和延音計時器。

在手動模式下，對生成的脈沖每秒采樣的樣本數根據工作采樣頻率確定。例如...

...表示在一秒鐘之內有 96K 個樣本。

在手動模式下，每個脈沖跨越一秒，然后重復。手動模式在進行頻率掃描時會出現混疊。請參閱下面的公式以生成干凈的信號。這些公式可推導出發生混疊的樣本、每個脈沖所需的樣本數以及每個頻率上升的時間。

這組公式適用于所有 SG2 模式。

對手動模式編程時，首先執行 ADSR 確認腳本，然后，執行其他 ADSR 參數，并在手動模式腳本的最后執行 ADSR 啟用命令。

# Key: w a0 XX YY ==> write to I2C address 0xa0, to register 0xXX, data 0xYY 
# # ==> comment delimiter 
#
#The following list gives an example sequence of items that must be #executed in the time between powering the device up and reading data #from the device. Note that there are other valid sequences depending #on which features are used.
#See the corresponding EVM user guide for jumper settings and audio #connections.
#
# Line-Out Fully-Differential 2-channel : OUT1P_M- Ch1, OUT2P_M- Ch2. 
# FSYNC = 48 kHz (Output Data Sample Rate), BCLK = 12.288 MHz (BCLK/FSYNC = 256) ################################################################### 
#manual mode example script
#acknowledge ADSR engine then enable it with x01 at the end of the script		
w a0 00 00	# locate page x00
w a0 01 01	# device reset
w a0 02 09	# come out of sleep mode with VREF and DREG up
	
w a0 00 01	# locate page 0x01
w a0 2d 04	# enable SG2 only
	
#Using chirp start frequency formula	
w a0 00 17  # locate page 0x17	
w a0 7c 02 18 2a 47  # SG2 start frequency at 1 KHz
	
#Using chirp delta frequency formula	
w a0 00 18  # locate page 0x18		
w a0 08 00 00 00 44 a1  #delta frequency of 0.5 Hz not causing aliasing	
	
#Acknowledge ADSR envelope	
w a0 00 1c  # locate page 0x1c	
w a0 40 00 00 00 00  # ADSR note, set 0 when powering 	
                     # up dac and set it to 1 to enable chirp	
	
#Set sustain and restart timer the same	
w a0 50 00 00 00 00  # restart_timer	
w a0 54 00 00 00 00  # sustain_timer	
	
w a0 00 17	# locate page 0x17
w a0 74 00 00 00 00  # power up delay	
	
#SG2 channel selection and amplitude level configuration 	
w a0 00 11 # locate page 0x11	
w a0 70 40 00 40 00  # OUT1
#w a0 74 40 00 40 00 # OUT2	
	
#Output configuration 	
w a0 00 00	# locate page 0
w a0 76 0c	# enable OUT1
w a0 78 40	# enable all DACs
	
#Turn on ADSR envelope	
w a0 00 1c          #locate page 1c	
w a0 40 00 00 00 01 # ADSR note, set 0 when powering 	
                    # up DAC and set it to 1 to enable chirp	
                    # for manual mode