Search found 14 matches

by Pompey2
Thu Jan 16, 2014 11:36 pm
Forum: Future products
Topic: BASIC for Teensy 3.0/3.1
Replies: 3
Views: 11290

Re: BASIC for Teensy 3.0/3.1

So are you going to be selling the Teensy3.1 with basic installed, or just the Basic code? It looks a winner to me...

cp
by Pompey2
Sun Mar 10, 2013 12:06 pm
Forum: Software issues
Topic: PROstart - MakeitC printf problem
Replies: 2
Views: 4709

PROstart - MakeitC printf problem

I can't figure out how to get printf to print floats when using C on a PROstart. Basic has been overwritten I'm using the the "case 60 printf" demo from Coridium sample file Csample.c dated 2/7/2013 as my test case. USE_FLOAT is defined in the code. i is integer, x is float. I changed %d to %f or 1....
by Pompey2
Thu Mar 07, 2013 10:58 pm
Forum: Software issues
Topic: MakeItC Compiled Help.
Replies: 1
Views: 4649

MakeItC Compiled Help.

The following topics produce unreadable results from HELP-> ARMexpress C on my installation: COUNT,OWIN,PULSIN,PULSOUT,PWM,RCTIME,RXD DAY,HOUR, MINUTE,MONTH,SECOND,SLEEP,WAIT,WEEKDAY,YEAR IN,INPUT,OUTPUT Added: The online PDF version has a similar problem In addition HELP -> GCC Index produces: "Win...
by Pompey2
Thu Mar 07, 2013 8:57 pm
Forum: Software issues
Topic: MakeitC won't write to PROstart
Replies: 4
Views: 5900

Re: MakeitC won't write to PROstart

That did it - thanks!
by Pompey2
Thu Mar 07, 2013 7:26 pm
Forum: Software issues
Topic: MakeitC won't write to PROstart
Replies: 4
Views: 5900

Re: MakeitC won't write to PROstart

As for the CPU ID, the high order nibble is different from what I see in the DIP28 version or the TSSOP28 versions of the LPC1114. I'm building a release with that delay in the MakeItC load process. (should be there about 11:30 today) As indicated, the NXP manual shows both x0A and x1A for the top ...
by Pompey2
Thu Mar 07, 2013 4:31 pm
Forum: Software issues
Topic: MakeitC won't write to PROstart
Replies: 4
Views: 5900

MakeitC won't write to PROstart

Bruce - I have programmed this board using this setup many times before. But I just downloaded the newest version of MakeitC [11.00] and when I compile code it runs ok until it tries to download the hex file to the chip. Then I get: Blinky4 is 13.65K code 1.37K data done connecting... Copyright 2013...
by Pompey2
Sun Feb 10, 2013 4:54 pm
Forum: SPI and I2C
Topic: P17 & P18
Replies: 2
Views: 11172

Re: P17 & P18

You probably need to level shift the I2C lines.
I use a couple of 2N7000 FETs and the schematic on page 10 of NXP application note AN97055
"Bi-directional level shifter for I²C-bus and other systems"

http://ics.nxp.com/support/documents/in ... n97055.pdf
by Pompey2
Sat Jan 19, 2013 2:55 pm
Forum: Other Hardware interfaces
Topic: Big Current Source
Replies: 8
Views: 12126

Re: Big Current Source

I have run into a problem. The I2C bus outputs are on PO(2), and PO(3). These are not available on the PRO or ARMmite boards. The DAC that I have on order requires SDA & SCL for the I2C data transfer. Access to the I2C lines IS provided on the PRO. The 2 lines are brought out as P17 and P18 on J6 -...
by Pompey2
Tue Jan 15, 2013 10:35 pm
Forum: Projects
Topic: Xtal on BasicBoard
Replies: 5
Views: 8226

Re: Xtal on BasicBoard

hyte wrote:Thanks for the code. Do you have to add 39 pF caps as in http://www.coridium.us/ARMhelp/index.ht ... rPins.html ?
I added 22pF caps as spec'd 'somewhere' for the BasicChip/LPC1114.
by Pompey2
Sat Dec 01, 2012 11:55 am
Forum: Projects
Topic: Xtal on BasicBoard
Replies: 5
Views: 8226

Re: Xtal on BasicBoard

Here's my code to enable the BasicChip to use an external 12Mhz crystal. '****************************************************************** ' Derived from the Clock Start Up code in: ' '* @file system_LPC11xx.c '* @brief CMSIS Cortex-M0 Device Peripheral Access Layer Source File '* for the NXP LPC1...