Hello guys, I believe that the only way to download a new program into flash is to use the UART or the JTAG. what if I don't have a Serial...

Hello guys, I believe that the only way to download a new program into flash is to use the UART or the JTAG. what if I don't have a Serial port on my computer and that I don't want to use the JTAG connection... I guess that a simple USB to UART conversion will do the job. So my question is: what is it better to use? A external adaptater or an USB to UART bridge such as the CP2102? ...

I am trying to add UART communication to my project and am having some problems. I am using UART interrupts. Here is the UART...

I am trying to add UART communication to my project and am having some problems. I am using UART interrupts. Here is the UART initialization code: PINSEL0 = 0x00000050; U0LCR = 0x83; Fdiv = ( Fpclk / 16 ) / baudrate ; U0DLM = Fdiv / 256; U0DLL = Fdiv % 256; U0LCR = 0x03; U0FCR = 0x07; U0IER = 3; install_irq( UART0_INT, (void *)uart0_irq, HIGHEST_PRIOR...

Hi All! I am setting up an interrupt to read encoder signals (EINT0 and EINT1) and then displaying my position on UART. I was able to create...

Hi All! I am setting up an interrupt to read encoder signals (EINT0 and EINT1) and then displaying my position on UART. I was able to create an echo UART, and thanks to Robert, I'm able to read encoder signals. There is an interrupt initialization line of code that prevents transmitting to Terminal through UART1. When the VICIntEnable is commented out, I can send to Terminal. Th...

A new UART Baudrate Calculator has been posted on the NXP Standard ICs Website. The calculator allows you to enter in the clock rate, the...

A new UART Baudrate Calculator has been posted on the NXP Standard ICs Website. The calculator allows you to enter in the clock rate, the baudrate and the maximum allowed relative error and outputs the UART settings. The calculator works for both the standard UARTs from earlier families and the enhanced UARTs from more recent families. http://goo.gl/RX413

Hi, Can someone help me please. I use KEIL uvision and ulink2 to test the uart of lpc2366. There are a data packet of fifteen bytes to...

Hi, Can someone help me please. I use KEIL uvision and ulink2 to test the uart of lpc2366. There are a data packet of fifteen bytes to tranmit by uart of LPC2366 each second. When I use the program below: for(i=0;i

Having problems setting up UART receive interrupt on LPC2103 (IAR, using J-Link) VIC is set up OK as int code is executing, but it is not...

Having problems setting up UART receive interrupt on LPC2103 (IAR, using J-Link) VIC is set up OK as int code is executing, but it is not clearing the interrupt, so int code is getting executed continuously, despite no data actually being sent to it. IIR is showing to 0C, i.e. CTI int, but LSR bit 0 is clear, indicating no data.... The int occurs as soon as the UART interrupt is enabled, ...

Hi all, Thank you so much in advance for any kind of help of suggetions. Here is my problem, Using LPC2148 i am trying to send more then...

Hi all, Thank you so much in advance for any kind of help of suggetions. Here is my problem, Using LPC2148 i am trying to send more then 1MByte of file throught UART1 with some data packet. I got working UART INTRUPT based code from some site which is working fine. Now the problem is that, when i am trying to send file data continuously using UART 1, i am not able to read more than ...

Hi all. I have a problem with programming via UART on LPC2294 system. I using USB to UART interface with FTDI FT232BM chip. When I check...

Hi all. I have a problem with programming via UART on LPC2294 system. I using USB to UART interface with FTDI FT232BM chip. When I check LPC signature, all is OK, ISP programmer found LPC chip (PartID:84016915 BootLoader:1.61). But when I erasing chip, all is OK, programming sector 0 is OK, on sector 1 chip burner give me message "Canceled, not responding". I am using ./lp2k_pgm , when I tr...

Am using a lpc 2148 chip. I have most of the driver's up and working totally error free but am having real problems with the UART,sending data...

Am using a lpc 2148 chip. I have most of the driver's up and working totally error free but am having real problems with the UART,sending data had no problems but the only problem was during recieving data First i tried to test the uart i didn't recieve any inturupts, but as i read it was a common problem while using the debugger but the real problem is when i try to recieve data for w...

Hi guys I have been using LPC2148 connected with a digital hall effect sensor(external interrupt) and ZigBee(UART interface). It should...

Hi guys I have been using LPC2148 connected with a digital hall effect sensor(external interrupt) and ZigBee(UART interface). It should work in the manner such that it always stays in PD mode. Whenever external interrupt from Hall Effect Sensor is triggered it should wake up transmit a character on UART and go back to PD mode. 1.The system works perfectly when I do not use the power do...

Hi all, I have a board with LPC2366 and Octal UART 16L788 . I have a code written for minimal operation of one channel of the UART. The...

Hi all, I have a board with LPC2366 and Octal UART 16L788 . I have a code written for minimal operation of one channel of the UART. The receive and transmit works fine independently in interrupt or poll mode. But if I make a continuous loop to check TxEmpty and then load a byte in THR then I am missing some bytes in reception . I had zeroed the code and now the loop only check for RxRe...

I have a project using an LPC1768. This project has a requirement for 7 UART's, so I used three UART's on the LPC1768 and added two SC16IS752's,...

I have a project using an LPC1768. This project has a requirement for 7 UART's, so I used three UART's on the LPC1768 and added two SC16IS752's, which are dual UART's with selectable I2C or SPI interface. I allocated SSP0 to one of the DUART's and SSP1 to the other. Each DUART has an IRQ line and I ran these back to separate EINT pins. Running the DUART's on separate SSP ports with separate interr...

Hi! Sorry if this is a stupid question, but I haven't found any good info about the UART levels so I better ask! Need to connect a...

Hi! Sorry if this is a stupid question, but I haven't found any good info about the UART levels so I better ask! Need to connect a LPC2138 to a Maxim (Dallas) DS2480B which is on 5V. Can they talk as it is or do I need a 3.3 to 5V buffer between? Thanks for any help! Cheers /Johan

Hello Everybody, I am trying to interface a device with RS485 half duplex communication. So = below is my algorithm. 1) Set the Master Device...

Hello Everybody, I am trying to interface a device with RS485 half duplex communication. So = below is my algorithm. 1) Set the Master Device (DIR) into transmitting mode. 2) Send the data over the UART. 3) Set the Master Device (DIR) into receiving mode. To receive data from th= e device.=A0 So when the final bit is shifted out into the UART line set the Master devi= ce into receiving...

Does there exist free or cheap software to run the LPC2148 USB without digging deeply into the USB protocol details? The best example is...

Does there exist free or cheap software to run the LPC2148 USB without digging deeply into the USB protocol details? The best example is the FTDIchip approach, where the USB looks like UART from both sides: PC and microcontroller. Thank you, Varuzhan

Hi, I am a newbie and trying to drive UART0 of LPC2468 but not able to drive it properly. Followed following steps: 1. Initialize UART...

Hi, I am a newbie and trying to drive UART0 of LPC2468 but not able to drive it properly. Followed following steps: 1. Initialize UART registers Baud rate : 9600-8-N-1 2. Check the LSR value 3. If LSP value is 0x40 then transmit the character on THR Can anybody guide me ------------------------------------

Hi All, I'm working on LPC17xx, but maybe somebody can answer. I'm using GPDMA driver for the UART RX. I always receive the same number of...

Hi All, I'm working on LPC17xx, but maybe somebody can answer. I'm using GPDMA driver for the UART RX. I always receive the same number of characters, which I send. I see that sometimes single character is lost, but then I get additional one, after a short time. I've implemented RX ringbuffer. The DMA stops on DMA IRQ (GPDMA_STAT_INTTC), does the wrap around to the buffer, and reloads the...

Dear Friends, I working on a problem for couple a days, I can not receive interrupt from UART0, I need some samples code...

Dear Friends, I working on a problem for couple a days, I can not receive interrupt from UART0, I need some samples code for for UART Driver for LPC2103 Thanks, Teddy Regards, Tidhar Tsuri

Hello All, I think I have found a quirk in the LPC2292. I want to bounce this off the great minds of this forum to assure me that I...

Hello All, I think I have found a quirk in the LPC2292. I want to bounce this off the great minds of this forum to assure me that I understand this correctly. I have the UART connected to 2 physical layers via a mux. When I switch from one to the other, I sometimes get a CTI interrupt. My understanding of this interrupt is if the UART has received some bytes, but not enough to meet t...

I am having problem in understanding timer interrupts and its use? I mean ,= how it can be more useful than the delays we generaly use...

I am having problem in understanding timer interrupts and its use? I mean ,= how it can be more useful than the delays we generaly use as {while(int i=3D0;i