lpc2000 at Yahoo! Groups

Help Interfacing LPC2148 to Thermal Printer

sumit — Wed, 10 Feb 2010 12:52:32 GMT

I'm trying to interface LPC2148 to Samsung Thermal Printer Mechanism SMP 600, please can someone help me with it?

Re: ADC Problems in LPC2364

tike64@... — Wed, 10 Feb 2010 12:46:27 GMT

... Make sure that the DBGEN pin is high. -- Timo

Re: ADC Problems in LPC2364

pra bu — Wed, 10 Feb 2010 12:34:36 GMT

Thanks for your response.I have configured to REG_PINMODE1 =0x00020000;(disable pullup,Pull down).Still i am getting zero in adc value 0( bit 15:6 in

Re: LPC2468 interface with MT48LC4M16A2 (4Mx16) SDRAM

Bogdan Marinescu — Wed, 10 Feb 2010 11:15:53 GMT

... Thank you. This is interesting, but I don't think it's applicable to the LPC24x8 SDRAM controllers. It will help a lot if I decide to design a board around

Re: LPC2468 interface with MT48LC4M16A2 (4Mx16) SDRAM

Bogdan Marinescu — Wed, 10 Feb 2010 10:58:08 GMT

... You're right. This is bound to cause problems sooner or later, so I'd better fix it now. Plus, the Sherlock Holmes principle suggests that this might

Re: inline assembler not permitted in thumb code

Igor Skochinsky — Wed, 10 Feb 2010 10:45:28 GMT

Hi, Seeing as you're manipulating the I bit, I assume you want to enable/disable interrupts. For that, you can use __enable_irq() and __disable_irq()

Re: inline assembler not permitted in thumb code

42Bastian — Wed, 10 Feb 2010 10:38:03 GMT

... Did you select the right CPU ? 1768 is CM3, which has no SYS32Mode ! Nor does it have a SPSR. -- 42Bastian + ... +

Re: inline assembler not permitted in thumb code

groups@... — Wed, 10 Feb 2010 10:34:44 GMT

IENABLE and IDISABLE are intented to be used on ARM7 chips, not on Cortex M3 chips. You don't need these macros on Cortex M3 anymore. Herbert

Re: LPC2468 interface with MT48LC4M16A2 (4Mx16) SDRAM

groups@... — Wed, 10 Feb 2010 10:32:49 GMT

... The bad thing at those days was that I was one of the first persons falling into this trap ;-) so there haven't been any similar cases in the group at this

inline assembler not permitted in thumb code

mohiniraman — Wed, 10 Feb 2010 10:22:30 GMT

I am working with LPC1768 with Keil realview MDK ARM V4.01. When iam using "__asm" keyword in my code for IENABLE,IDISABLE macros (i wish to switch between sys

Re: LPC2468 interface with MT48LC4M16A2 (4Mx16) SDRAM

Bogdan Marinescu — Wed, 10 Feb 2010 10:00:36 GMT

... Hi, Thanks for your help, I already found your topic and shared your pain :) However, I think I'm using the right shift in my initialization code.

Re: LPC2468 interface with MT48LC4M16A2 (4Mx16) SDRAM

Bogdan Marinescu — Wed, 10 Feb 2010 08:40:31 GMT

... I expect it to work fine in the first bank at least. The SDRAM's datasheet specifies that even the MODE command (the infamous memory access command with

Re: LPC2468 interface with MT48LC4M16A2 (4Mx16) SDRAM

Miguel Angel — Wed, 10 Feb 2010 08:15:11 GMT

I know that I'm not giving too much help, as I'm talking of other MCU (LPC313x), but I really know what you feel, I wish you luck. in my case I found a problem

Re: ADC Problems in LPC2364

M. Manca — Wed, 10 Feb 2010 07:15:43 GMT

prabuisin@... ha scritto: I didn't use LPC2364 but in general on LPC2xxx you need also to write a PINMODEx register to choose one of the possible

ADC Problems in LPC2364

prabuisin@... — Wed, 10 Feb 2010 06:36:27 GMT

Hi all, here is my ADC0 channel 1 configurations, PCONP |= ( 1 << 12); PINSEL1 &=0xFFFDFFFF; ADCR = 0x00000000; ADCR = (1 << 21); ADCR |= 0x00000002;