Is there an off-the-shelf board which can drive 2 serial ports - taking data from one port, log the data into a flash memory device, then send the data through a second port?
Needs to be low-power and compact, so I thought about a PIC but something else may be better
Thanks in advance
Have you ever seen a PIC with two serial ports ??
One of the serial ports may have to be bit banged.
What speed are the two serial ports ??
How "low-power" and "how compact" ??
Pidur wrote:
There are some 18F parts with two UARTs, probably SMT-only though.
Best regards, Spehro Pefhany
-- "it's the network..." "The Journey is the reward" snipped-for-privacy@interlog.com Info for manufacturers:
What speed do you need? As was suggested, you can 'bit bang' a second serial port when using one of the smaller PICs but the speed will be limited. If you need high-speed comms on both ports you could interface a second UART like a Maxim SPI device. I've done this to add an additional serial port to a mid-range PIC.
A better solution might be to use a Philips LPC210x ARM which has two UARTs and 128k of on-chip flash. The LPC210x is smaller than most PICs, much easier to program and not much more expensive. You'd just have to add a second MAX3232 device to my little LPC210x ARM board to produce what you want - 10 minutes work and a bit of programming.
Leon
Hi, there are several micros that have 2 ports and 64k+ built in flash. Hitachi, fujitsu, cygnal etc.
Do you need 2 complete UARTS ? Or 1/2 TX and 1 RX ?
If you do need 2 uarts, take a look at the MSP430F149 and similar devices. They're certainly low power and comparable in price to PICs.
Have a look at
Regards, Richard.
data
Have something to add? Share your thoughts — no account required.
Ask the community — no account required