Objective

BT RF test, use DUT as RX mode, test the frequency offset and RSSI with the reference signal source

Mode switch selection

Note

• Require UPT (model: T3), UPT is a calibrated Bluetooth TX signal source
• You may need modify the config file

[RF_RX]
	# kHz, frequency deviation of BT Tester Box
	# kHz, 测试盒/UPT与精准源频率偏差，DUT需要进行补偿
	tester_freq_offset = 0
	
	# kHz, frequency deviation low limit for check
	# kHz, 频偏验证最小值，最终频偏值低于此值，会报错
	cfo_low_limit = -10
	
	# kHz, frequency deviation high limit for check
	# kHz, 频偏验证最大值，最终频偏值高于此值，会报错
	cfo_high_limit = 10
	
	# channel no when test，default is 36
	# 校准时，使用的channel编号，默认为 36
	channel = 36
	
	# Write capacity setting。 0:NOT Write	1:Write to Efuse  2:Write to Efuse and Nor
	# 校准完成后，电容值写入到哪里。 0:不写入  1:写入Efuse  2:写入Efuse+Nor
	cap_write_region = 2

	# Use rssi for check?
	# 使用信号强度验证？
	rssi_limit_enable = 1
	
	# dBm, rssi high limit for check
	# dBm, 信号强度验证最小值
	rssi_low_limit = -70
	
	# dBm, rssi low limit for check
	# dBm, 信号强度验证最大值
	rssi_high_limit = 20

Operation steps

• Powere on the UPT, and placed near DUT
• Start the BT Tester and select RF RX function
• Connect the DUT. After the DUT execute completed, the BT Tester obtains the frequency offset calibration result
• The BT Tester display the frequency offset and RSSI, and judges whether the frequency offset and RSSI are within the limited range
• If within the limit, broadcast PASS voice
• If outside the limits, broadcast FAIL voice