Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Real time embedded FreeRTOS mailing list 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem TCP & FAT Training


LPC17xx FreeRTOS-Plus-IO

Posted by Joshua Napoli on November 21, 2012
The UART driver demo tries to use the FIFOLVL register in prvFillFifoFromBuffer. AFAICT, the register isn't present on LPC17xx parts and has been removed from the user manual. It seems that the you can only check whether the FIFO is completely empty.

There is some discussion on this topic here: http://knowledgebase.nxp.com/showthread.php?t=2231

RE: LPC17xx FreeRTOS-Plus-IO

Posted by Richard on November 21, 2012
Oh, thanks for pointing that out. I made the mistake of using the user manual and CMSIS drivers as a reference, obviously ;o) Unfortunately I just released V1.0.1 a couple of days ago. I'm planning (hopefully) to do a major upgrade to improve the user model a bit in the near future though.


RE: LPC17xx FreeRTOS-Plus-IO

Posted by Joshua Napoli on November 23, 2012
Thanks! Yeah, it's a bummer that NXP never updated their CMSIS drivers or added an errata for this.

[ Back to the top ]    [ About FreeRTOS ]    [ Sitemap ]    [ ]

Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.

Latest News:

FreeRTOS V9.0.0 is now available for download.

Free TCP/IP and file system demos for the RTOS

Sponsored Links

⇓ Now With No Code Size Limit! ⇓
⇑ Free Download Without Registering ⇑

FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Renesas Electronics Gold Alliance RTOS Partner.jpg

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Atmel RTOS partner supporting ARM Cortex-M3 and AVR32 microcontrollers

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Xilinx Microblaze and Zynq partner

Silicon Labs low power RTOS partner

Altera RTOS partner for Nios II and Cortex-A9 SoC

Freescale Alliance RTOS Member supporting ARM and ColdFire microcontrollers

Infineon ARM Cortex-M microcontrollers

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

Cypress RTOS partner supporting ARM Cortex-M3

Fujitsu RTOS partner supporting ARM Cortex-M3 and FM3

Microsemi (previously Actel) RTOS partner supporting ARM Cortex-M3

Atollic Partner

IAR Partner

Keil ARM Partner

Embedded Artists