DLP2010NIR: I2C command between Tiva and DLPC150 on NIRSCAN

Hello, 

Thank you very much for you question! Please allow us some time to investigate your question. 

Thanks, 

Brandon

Hello Hiroyasu,

Three of these commands have an API function in dlpc150.c but are not used in the NIRscan Nano Tiva application. They are not necessary for the NIRscan Nano operation.

-0xf1(This is Line 700 in dlpc150.c)
uint8_t cmds[9] = {DLPC150_REG_WRITE, addr, addr>>8, addr>>16, addr>>24, value, value>>8, value>>16, value>>24 };

-0x54(This is Line 534 in dlpc150.c)
uint8_t lampCurrent[7] = {DLPC150_LED_W_CURRENT, 0, 0, 0, 0, 0, 0};

-0x52(This is Line 611 in dlpc150.c)
uint8_t cmds[2] = {DLPC150_LED_W_ENABLE, 0};

The remaining two commands are used in the NIRscan Nano software and have the described purpose, but are not documented in the DLPC150 programmers guide:

-0xda(This is Line 861 in dlpc150.c)
uint8_t cmds[1] = {DLPC150_ADMIN_LIGHT_SENSOR};

Reads the value for the Photodiode light sensor in the system. The DLPC150 has a sense1 input which is used to measure the light level of the lamp. This value is then stored in the scan data structure. The intention was so that a customer could use this value to track lamp degradation over time.

-0xf8(This is Line 965 in dlpc150.c)
uint8_t cmds[1] = {DLPC150_SEQ_VECT_NUM};

This is an internal synchronization command used to improve the redundancy of the system.

Dear Eric

Thank you for your reply.
I could not understand yet.
You told me their following three command are not nessesary for NIRscan Nano operation.
Does it means user can remove their command ?

-0xf1(This is Line 700 in dlpc150.c)
uint8_t cmds[9] = {DLPC150_REG_WRITE, addr, addr>>8, addr>>16, addr>>24, value, value>>8, value>>16, value>>24 };

-0x54(This is Line 534 in dlpc150.c)
uint8_t lampCurrent[7] = {DLPC150_LED_W_CURRENT, 0, 0, 0, 0, 0, 0};

-0x52(This is Line 611 in dlpc150.c)
uint8_t cmds[2] = {DLPC150_LED_W_ENABLE, 0};


Best Regards
Hiroyasu

Dear Eric

Thank you !
I got it.

Best Regards
Hiroyasu