None: What does LDRB do here? (3 Replies)
Hello. I've been looking at a piece of code that I'm not entirely sure what it does. LDR r0, =str MOV r1, #0 loop LDRB r2, [r0], #1 ADD r1, r1, #1 CMP r2, #0 BNE loop SUB r1, r1, #1 Data Segment...
View ArticleNone: STM32: Loading programs to different flash locations (4 Replies)
Hello, I want to load multiple applications onto my NUCLEO-F429ZI. This is for a production product. The program at 0x08000000 will be a bootloader that decides whether to run the application in...
View ArticleNone: Is the source for STM32F7xx_QSPI_Disco.flm available?
I see you provide the source for many flash loaders, but only the .FLM file for the STM32F7xx_QSPI_Disco loader. Can I receive the source for STM32F7xx_QSPI_Disco.FLM?
View ArticleC51: How can i input serial data using keil?
How to add a string of characters based on a scanf code in keil for 89c51 microcontroller? I have read that i can do it using serial input but i am not aware from where can i open a serial input in keil
View ArticleARM: Missing File for Compilation (5 Replies)
I am looking for the file system_stm32f4xx.c for the compilation of the code. I am working on the board stm32f411vet6. While compiling the code for gpio I am getting this error. Thanks in advance for...
View ArticleARM: RTX5 component viewer failure (1 Replies)
I have an RTX5 project. The project appears to run OK, but the RTX RTOS component viewer shows errors after the kernel starts. This error is shown in the command window: Expression: 'ipsr =...
View ArticleNone: Issue with dll adding in Debug (3 Replies)
Hi, I have an issue concerning a dll, not recognized when I use the debug session. Here is the recap of the issue : I use the version 5.21a (and cannot upgrade my version, work restriction)and will...
View ArticleC51: hex generation issues (3 Replies)
" SAME CODE BUT NO OUTPUT " I have the same code taken from another PC for C8051F060 with Keil uV 4 compiler version 9.01 , i am compiling the same code with version 9.03, the lcd is not working...
View ArticleC51: Which header file to use with Silabs EFM8LB12F64 (23 Replies)
Dear all, Would you help me to identify which header file to use with Silabs EFM8LB12F64E? I already tried to compile a very simple program , but, failed. #include...
View ArticleARM: RTX stack management
I am using RTX 4.70 for a project on Cortex M-3. I have added some osXXX calls to the core RTX api. I am finding that if I have 2 threads (in addition to main plus any timer thread or idle thread) and...
View ArticleARM: STM32F103 uVision5 error: #20: identifier is undefined (2 Replies)
I am merging two projects for STM32F102. The problem is the compiler errors. It exist in all HAL driver files rcc, adc, dma... etc. ..\Drivers\STM32F1xx_HAL_Driver\Inc\stm32f1xx_hal_rcc_ex.h(1846):...
View ArticleARM: target device not available while creating new project
I am using keil mdk v5.26 I added software pack for stm32L0 and activated the license as per given on the website link http://www2.keil.com/stmicroelectronics-stm32/mdk It works then i added software...
View ArticleNone: CMSIS-Pack with device support
hi,I am new to cmsis-pack. In pack with device support,the element <memory> must have in the pdsc file or not? The region of Startup code,we have done in bootrom code.After bootrom,we go...
View ArticleNone: compilation error of identifiers is undefined
the uVision complained that: stm32f0xx_i2c_cpal_hal.c(121): error: #20: identifier "I2C2_IRQn" is undefined, however, this is defined in the "stm32f0xx.h" and the header file stm32f0xx_i2c_cpal_hal.h...
View ArticleARM: uVision: How to close debug session at end of main? (1 Replies)
Hello everybody, I am trying to automate my tests with Keil uVision. I have written several unit-tests with the testing library Unity. Every test is encapsulated in a separate Keil project. The tests...
View ArticleARM: Net_sys_error : ERR_MEM_CORRUPT
Hello, We are currently working on a Web server on an ARM Cortex-M7 to transmit JSON string via HTTP and CGI. When sending TCP / IP packets (2 or 3 TCP segments), an error occurred: net_sys_error...
View ArticleARM: ETM of ARM Cortex M4
Hi i'm using Nucleo board F401RE. i want to activate the ETM but not using a kit debugger. i have to modify manually the value of some registers. i downloaded two datasheet: 1) ETM Architecture...
View ArticleNone: No Algorithm found for: 00000000H - 0000038BH
Hi, While setting up an experimental project on Keil for STM32F4- DISCOVERY board I came across this error when trying to flash the code. No Algorithm found for: 00000000H - 0000038BH Erase skipped!...
View ArticleC51: Why the compiler thinks I want to write assembly codes (1 Replies)
#include<reg51.h> typedef unsigned int u16; void main() { P0=0x01; u16 i; } Placing a statement declaring a new variable following a statement assigning an 8-bit IO port makes the...
View ArticleNone: SPI clock selection
Using Stm32l476 controller. Master is running at 30 MHz and slave is running 15 MHz. In SPI master clock should be system clock/2 slave clock should be system clock/4 Question 1: My understanding is...
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