HI，
Our main control MCU communicates with TMS320F through SPI. Can our MCU obtain the DMD motherboard temperature information measured by TMP411 on the DMD motherboard, the chip temperature information of DLP3030, and the temperature information on the LED light board through SPI?
Hi,
Thanks for reaching out with your question and please see the following files.
0412.DLPU057_Piccolo_SPI_Command_Guide_201803.pdf
You can find the following information on reading the DMD Temperature.
In regards to reading the local temperature of the board and the LED light board temperatures, there is no immediate SPI command to do so.
The TMP411 can read local board temperature and will communicate to the DLPC120 through I2C.
2465.dlpu055_DLPC120-Q1_I2C_User_Interface_Programmers_Guide_201803.pdf
You will need to develop Piccolo SW functionality on top of our reference design code using SPI commands to tell the TMS320F to communicate through I2C to the DLPC120 which the TMP411 interfaces to in order to read the local temperature.
In regards to the LED board we do have an RGB LED thermistor that interfaces to the TMS320F but our reference design Piccolo SW does not include the functionality to read the thermistor ADCs and convert to temperatures, so you will need to develop that SW. So part of that SW development would be a 'read LED temp' command which is accessible via SPI.
Please also keep in mind the Piccolo SW may not have a whole lot of size flexibility to add more commands so you may need to remove unused commands to clear up space.
Thanks,
Alex Chan
