Application Note
30 of 63
V 1.2
2018-12-12
5 Output PMIC Controller/ IRPS5401
User guide with DB295 and DB296 demo boards
FAQ
1. What happens if I program another config file after the .mic file is programmed?
ANSWER-The PROGMAX and resistor installed will no longer have any effect on the config file read out
of NVM. The most recent file written will be the file that is read out and used at POR. However,
nvm_user_image_sel, will still display the offset chosen by the resistor installed.
2. What happens if the PROGMAX and resistor value point to an offset (segment) that was not
programmed?
ANSWER
– No valid USER image will be loaded and the device will not start. READ ONLY register
0x0052 [12], nvm_read_no_image, will be set to a 1 and READ ONLY register 0x0052 [2],
nvm_user_loaded, will be set to a 0. You will need to change the resistor to access a valid (programmed)
segment or program an image into the segment being pointed to.
3. What happens if the PROGMAX is smaller than the number of images programmed?
ANSWER
–This is essentially a repeat of #1 above. The last image in the *.mic file is the one that will be
loaded and used at start up. The resistor offset will be ignored until the PROGMAX is updated and set
equal to the number of programmed segments.
