Hi, While sharing i2c/spi bus, it is ok for spi devices that they have a chip select input but for i2c devices there is not any kind of input ( some have reset...
Diving into ARM development using GCC as a compleet newby to the whole ARM development, I was wondering if someone could explain to me the working of the...
Why is it that there are still some guys around whose computer's clocks are completely wrong? Some header information X-Yahoo-Newman-Id: 11453166-m40887 ...
Hi, Sorry for the clock. It is just about the battery pf my pc is dead somehow and i have to set it every time i power on my pc. And sometimes i forget to set...
On Wed, 01 Apr 2009 10:25:04 +0200 ... Windows users! -- You deserve a better life, dump Windows!...
jan@...
Apr 1, 2009 8:46 am
40894
Dear friends, Please forget my message. But i want to make clear some point, 1.) I know it is totally off topic. Accept my excuse. 2.) My system clock was...
... From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf Of viren Sent: 01 April 2009 10:45 To: lpc2000@yahoogroups.com Subject: [lpc2000]...
Dear Firat, Read on my comments on your last message. ... No excuses are needed. This is definitely NOT off topic. I would just suggest that you make your...
Hi Viren, I am using it too, but the D version, which has some enhancements to the B part. So, what's the question you have? In our case, we have no file...
Hi Julio, Thanks for your answers. I am currently designing a LPC2148 based board. Board has the fallowing chips I2C based; Rtc Eeprom Led Driver Adc Digital...
Hi, I can answer the question now myself. It was the order of how to initialize the SDRAM and the LCD-controller. SDRAM has to be first. I had it in the...
I had a similar problem on a LPC2138 device, the PWM didn't work until I found the initialization sequence in this blog. Meanwhile I found out that the PWM...
Anyone have any ideas regarding Beta testing systems with surface mount CPUs regarding reprogramming bug fixes? With older DIP CPUs, you can just ship out a...
Sutton Mehaffey
sutton@...
Apr 1, 2009 2:47 pm
40906
With 214x you can do USB updates (Look for the Secondary Bootloader at NXP/Keil) If you're interested, those ones include the usb bootloader preinstalled, and...
... You could include a memory card connector and have the CPU read new software from that. -- Wouter van Ooijen -- -------------------------------------------...
... Can the customer access a conector on the beta equipment? You could have a computer set up there with a JTAG port to reprogram the device over the internet...
The SD card seems like the best approach so far. I have one on the board. And, the code is going to be less than 200K, so I could have 2 banks in the CPU. On...
Sutton Mehaffey
sutton@...
Apr 1, 2009 3:25 pm
40911
... SD card is a good idea. May I also suggest that you set up some kind of logging interface so that your device can log stuff to a file on the card. Your...
Hi, ... You can develop a mass-storage based updater. If the customer is pressing a key while powering the device it starts up in mass-storage update mode....
Nice writeup. Thanks. I think that's the way I will eventually go. Sutton ... -- Sutton Mehaffey Lookout Portable Security 4040 Royal Dr. Kennesaw, GA 30144...
Sutton Mehaffey
sutton@...
Apr 1, 2009 6:22 pm
40915
The secondary bootloader from NXP does the update emulating a mass drive storage with a "FIRMWARE.BIN" inside when you boot up with the "enable" button...
You could burn the new code into a DIP serial flash & put a DIP socket on your beta hardware. Ship out updates in cheap flash chips which the customer plugs it...
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