ARM: Critical sections on Cortex-M3 (1 Replies)
I'm wondering a bit about implementing critical code sections on a Cortex-M3 where exceptions are not allowed due to timing constraints or concurrency issues. In my case, I'm running an...
View ArticleARM: How to create a makefile, which will do the same job as Keil build. (2...
I'm working on STM32f0xx (CM0), and using keil to build the project and getting hex file. I want to write a makefile which will do the exact same job.
View ArticleARM: Multi Channel ADC not working
I am trying to implement the multi channel ADC in LPC1768 by interfacing it with the 3axis accelerometer.Basically am fetching the data from the sensor and sending it to a android application using a...
View ArticleARM: MDK for STM32L0 and CortexM3 (1 Replies)
Hello, I use a Keil MDK for STM32L0 devices and for DA14580 (Dialog Semiconductor, Bluetooth low energy chip). When I activate a licence for STM32L0 and STM32F0 I can't compile project for DA14580. It...
View ArticleNone: CMSIS Documentation issue
Minor, but still: In the parameter event table ARM_I2C_EVENT_GENERAL_CALL and ARM_I2C_EVENT_ADDRESS_NACK are switched. The table is published...
View ArticleARM: Fill out data at the specific address in scatter file
Hi, I'd like to port GNU linker file into scatter file format. One section will write some data (include region's base and length) to fixed address in flash. Any one knows how to translate below's...
View ArticleARM: R14 = 0xFFFFFFFD (3 Replies)
Hello I need some help to understand this behaviour. When I run my code (FreeRtos) step by step , into the vPortSVCHandler we call a function with BX R14 , but R14 is shown to be 0xFFFFFFFD ..... Can...
View ArticleARM: Empty arrays in nested structures
I am porting code from ew and gcc to keil uvision arm compiler (Arm compiler 5.06 update 1 build 61). Both ew and gcc allow me to the following: struct header { uint32_t chksum; uint8_t id; uint8_t...
View ArticleNone: CMSIS CAN Driver SetBitrate() call
Hi, I am reading the CMSIS doco for ARM_CAN_SetBitrate() and have the following question concerning the parameters... The "bitrate" parameter according to the documentation defines the bitrate. The...
View ArticleARM: Hash Table in Raw Flash or simple file system for embedded system (1...
I am developing a handheld data logger. The CPU is a STM32F10x, the storage chip is a 16MByte SPI-Flash. Information of the Flash Chip: Sector Size: 4096 Bytes Programming Page Size: 256 Bytes...
View ArticleARM: CMSIS message order for an I2C WriteRead transaction
What is the expected timing of events concerning CMSIS I2C events for a Write Read transaction? I am currently using a STM32F407 MCU with the CMSIS library and am surprised by the timing of when the...
View ArticleC51: scroll_text in LCD (2 Replies)
#include<reg51.h> #define lcd P2 #include<string.h> sbit RS=P1^0; sbit RW=P1^1; sbit EN=P1^2; void init_lcd(void); void cmd_lcd(unsigned char); void data_lcd(unsigned...
View ArticleARM: CMSIS v4.5.0 UARTx Interrupt basic example (1 Replies)
Hi, I have been stuck on getting the interrupt to work with keil using CMSIS. I keep getting the following: Error: L6200E: Symbol USART3_IRQHandler multiply defined (by usart_lpc43xx.o and main.o)...
View ArticleARM: Discussion about USB over Ethernet driver (1 Replies)
Hello Everyone, i'm reading the USB over Ethernet from the below link http://www.keil.com/pack/doc/mw/USB/html/dev_cdc_ncm.html. i'm trying to build the software in the similar manner with few...
View ArticleARM: Strcopy
Hello. I am trying to make parser for string. string contains double number so I am using atof() to make double from it. but when I try it makes something strange when use strcopy() to make char* from...
View ArticleDS5: DS-5 Debugger Supports ARM1176JZF-S
Hi I would like to know does DS-5 Debugger supports latest version debugger ARMv6 instruction set and extensions for AMR1176JZF-S processor core ?
View ArticleC51: Keil bug that cause AGDI calling the readCode forever
Hi All, we recently implement the keil AGDI to work with our own 8051 debugger by referring to Apnt_145. everything seem fine but we found an issue that the AGDI where it keil seem will forever...
View ArticleNone: CAN Object chicken and egg or something else? (1 Replies)
Hi, What are the capabilities that the ARM_CAN_OjectGetCapabilities() returns? Are they the capabilities for the object as programmed by ARM_CAN_ObjectConfigure()? Or are they capabilities...
View ArticleNone: In MDK ARM uvision v5, How to highlight all occurrences of a text...
Hello, I am new to using uvision as the IDE. By using Atmel studio and CCStudio, I used to edit my codes by clicking on a variable or function name and see all its occurrences within the file. In...
View ArticleARM: HEX output has wrong addresses (2 Replies)
I'm trying to combine my bootloader and application projects made in Keil uVision5 into one single hex or binary file. I have used the bootloader to upload a binary of the application and it works. I...
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