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Thanks for your reply and for the schematic.
I think i will use it to determine if vbat is below 14V.
But what about the 24V unplug? should it be possible to use a digital input to the MCU ?
many thanks regards
Hi all,
I need to monitor a 24V input through the on board MCU.
This input it from an AC-DC which powers my microcontroller board though an LDO and charge the battery.
When the AC-DC in unplugged MCU has to monitor a Vbat and detect if it falls below 14V.
So basically what i asking for is ...
Thx for your reply wizpic,
I can'T understand how it is possible
As in the manuall the buck converter
seems to be calculated for a determined output
Voltage
Could u explain please?
Many thx
B.
Hi guys,
this is a very intersting project.
I have a question about the way the control.
Does the charger support different battery packs, without any modification?
I mean, can it charge nimh battery packs with 3 - 5 - 7 cells and so on, without any change to the circuit parameters?
thank a...
Hi,
give a look to EM773 from NXP - it's a cortex-m0 based device
there is also a reference design, very useful.
NXP Semiconductors - ICs [Design Examples - EM773 Energy Metering IC]
Regards
B.
Hi all,
I've searched around the forum but didn't find the right answer to my question.
I've to design a charging system with the following requirements:
Vin - 6V-30V (600mA – 1A )
Support for battery packs 3.6V, 6V, 12V, 24V – Nimh, NiCd
The circuit should normally charge the battery pack...
video processing on fpga
Hi all,
I've to develop an application in which i should mux
an ITU656 input and I2S input, and output an HDMI
The following component is very nice for what i should do
hxxp://www.nxp.com/acrobat/datasheets/TDA9989_2.pdf
but it costs a lot and I just need ITU656 +...
tft controller
Hello to all,
I'm planning to develop a simple controller for the following TFT
http://www.trulydisplays.com/tft/specs/TFT320240-97-E(5.7D)v1.0.pdf
does anyone can help with vhdl, verilog, or simply supplying a block
diagram or a reference book where to learn such stuff?
I...
nios stw r2,0(r3)
The IORD macro expands to the ldwio instruction, and the IOWR macro expands to the stwio instruction.
These macros should be used by HAL device drivers to access device registers.
All of these macros bypass the data cache when
they perform their operation.
Of course...
using iord iowr altera nios ii
hi,
i don't the have the IDE installed but...
What does it mean it doesn't work? don't you get the desidered result?
or id doesn't compile correctly?
if it compiles, could you post the disassambled in the two cases you show?
trying what the compiler is doing...
actel toplevel vhdl example
hi,
in the .pdc file try:
unassign_global_clock -net netname
Exceptions
You cannot assign “essential” clock nets to regular nets. Clock nets that are driven by the following macros are “essential” global nets: CLKDLY, PLL, and CLKBIBUF.
Examples...
Re: write data in ram onto eeprom when there is a power outa
Albert22 is right.
Depending on what you've to save in EEPROM residual energy is sufficient.
I've already done it using an H8S from Renesas and it works.
I'm using a FRAM to store more than 100 32 bit parameters in it at powerdown.
In...
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