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Figure 17. Calculator for CMT225xA
7.7 RSSI Scan
For Rx products, the RSSI Scan feature is available on the upper-right corner of the RFPDK Device Control Panel. With it being selected, a screen pops out as below, it can help the user to quickly evaluate the current signal strength received by the device.
Figure 18. RSSI Scan
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8. Frequently Asked Questions
Q1. Why do I not see any response from the PC when I plug the USB cable of the USB Programmer to the PC?
A1. Please try the following steps to resolve the problem:
1.
Make sure the USB port is functioning well.
2.
Make sure the USB connection is solid by checking if the “USB” LED on the USB Programmer is on.
3.
Try another USB port on the PC.
If the problem still exists, please contact CMOSTEK for further support.
Q2. I plugged out the USB cable while the USB Programmer is running. After that, why can I not use any USB device on the
PC anymore?
A2. It is commonly seen that such unexpected error might happen to the USB system if the user plugs out the USB device during any data communication. CMOSTEK recommends the user to close the RFPDK before plugging out the USB
Programmer, and then reboot the PC to resolve this problem.
Q3. Can I install the RFPDK on a PC on which I don’t have administration right?
A3. CMOSTEK recommends the user to obtain the administration right before installing the RFPDK.
Q4. Can the RFDPK and the USB Programmer support all CMOSTEK RF products?
A4. The current version of RFPDK and USB Programmer supports the existing RF products. In the future, CMOSTEK will update the RFPDK and USB Programmer firmware to support the new products. The user can visit www.cmostek.com
for the latest version of the RFPDK and contact CMOSTEK to upgrade your USB Programmer.
Q5. Why can I not install the USB Programmer driver on the PC?
A5. Please try the following steps to resolve this problem:
1) Make sure the USB port is functioning well.
2) Plug out the USB cable, close the RFPDK application, and try to plug in the USB cable again.
If the problem still exists, please contact CMOSTEK for further support.
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9. Document Change List
Rev. No
0.9
1.0
1.1
Chapter
7
All
7
Table 11. Document Change List
Description of Changes
Initial version
Add Section 7.5
Change to cover CMT211xA and CMT221xA products
Add Section 7.6 and 7.7
Date
2014-06-14
2014-06-30
2015-6-17
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10. Appendix: CMT211xA-EM and CMT221xA-EM Schematics
Take CMT2110A-EM and CMT2210A-EM as examples, the CMT2x13/17/19A are pin-2-pin replaceable to the CMT2x10A.
Figure 19. 433.92 MHz CMT2110A-EM Schematic
Figure 20. 433.92 MHz CMT2210A-EM Schematic
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