Appendix
CY8CKIT-044 PSoC® 4 M-Series Pioneer Kit Guide, Doc. No. 001-96598 Rev. *C
37
Figure 4-19. F-RAM Data Read by PSoC 4200M
13. You can read the data logged by the PSoC 4200M to the F-RAM using the Bridge Control Panel (BCP) software and
KitProg. Refer to the Chapter 5 of the
KitProg User Guide
to learn how to use KitProg USB-I2C bridge with BCP. Type
in the following command in BCP to access the F-RAM data from address location 0x0000 of the F-RAM:
w 50 00 00 r 50 x x x x x x x x x x x p
You can read from any address location of F-RAM by modifying the above command. For example, to read 11 bytes
from address location 0x1234 of F-RAM, use the following command:
w 50 12 34 r 50 x x x x x x x x x x x p
Refer to the
Appendix A.4
to understand how the F-RAM communicates with an I2C master.
Note:
The data stored in the F-RAM is in the format:
timestamp_hours, timestamp_minutes, timestamp_seconds, temperature_data_integer_part,
temperature_data_fractional_part, accelerometer_x_axis data, accelerometer_y_axis data,
accelerometer_z_axis data
The accelerometer data corresponding to each axis is 2 bytes long. Since the complete data packet is 11 bytes long,
the last few locations in each F-RAM page are not written. The F-RAM pages are switched if a complete data packet
cannot fit in to the same F-RAM page.
Note:
This project is not configured to operate in an I2C multi-master environment. If you are using Bridge Control
Panel tool to read the F-RAM data log, reset the PSoC 4 M-Series Pioneer Kit before using the µC/Probe to view the
data. If the COM terminal software is connected while µC/Probe is running, it displays an error message to indicate
communication failure.
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