My platform is based on the M0 processor. A simple(probably non-optimal) code I use to convert my input to a scaled output is as follows:
uint32_t output = (uint32_t)(12000 * ((1023/(float)input) - 1));
Is there a way to achieve this result in a much…
In custom bootloader when i am jumping to application code my msp value is changing after loading the bin file , for example my application has msp value 0x20000D0 but when i load the bin file of the same code through a custom bootloader(through…
There's many references to Debugging a Hard Fault on Cortex-M3 & M4; eg
niallcooling's Developing a Generic Hard Fault handler for Armv7-M
also:
http://supp.iar.com/Support/?Note=23721
https://community.freescale.com/thread/306244 - which…
I'm using IAR Embedded Workbench to debug a Cortex-M0 system interfaced through ST-LINK/V2 SWD. The processor isn't officially supported because it is under development, but the configuration files have been updated with correct data. I'm not sure however…
Looking for alternates for this instruction.
Which ARM Microcontrollers are embedded in current SD Cards? The Motorola 8051 tends to get mentioned in this connection, with occasional, vague references to ARM. So, which specific ARM technologies are used for this purpose, and what kind of embedded…
Hi the experts,
I'm not sure but i think that chip can realy help myself in my actual projet. i wanna get precisions about this chip.
In the technical datasheet i can read this :
ARM Cortex M0+ with 4KB flash and 1KB SRAM
I have an interest in the M0+ single-cycle IO Bus interface.
It seems that while the TRM describes a 32-bit bus, and a memory map it isn't clear if there is also an address bus to go along with this.
When instantiating do we have an IO address bus,…
Hi,
I'm making test some on the famous LPC1114FN28 is there somebody who have some experience about it ?Please, thank for sharing here
Here is the beast
And the pinout informations
Greetings,
sir/madam i am working on serial wire debug protocol. I was implemented serial wire debug protocol, which was successfully tested for used controllers like xmc1100,xmc4500..etc, when i tried to Access the control on newer controller i.e xmc1100…
I have a source file, converted it to assembly and added 2 instructions and generated the final elf. When I load this final elf, symbols doesnt match the source due to assembly instructions addition.
Is there a way to align them ? am using ARM cortex-M4…
Hi, i'm working with the ATSAM20DJ18A (using ASF) and i'm doing some temperature monitoring. But it seems like I'am stucked at 169 degre celsius. Is there a way maybe by changing the ADC reference to mesure 200 degre celsius?
Regards,
Hello All,
I am using Cortex M0 based controller and want to know if the following issues can happen and what can be the possible solution by software to handle the issues:
1. ALU resulting wrong result run time.
2. Register access giving wrong results run…
Hi, I wanted to start learning RTOS in ARM Cortex M Processors. I currently work on Cortex M0 IC provided by Nuvoton where I use the BSP to get things done.
Now I need to move a step ahead and start learning RTOS and Implement it .
I had gone through…
I want to use the wfi instruction in my code. I'm sending a command to a module and wait for the reply.
I have configured UART communication with the module. Will it be good to use wfi() instruction? I know that it will turn the cpu to power down…
I have made a custom board for STM32L072CZ by ST. I am flashing it using STM32Cube Programmer via UART. When I flash it, I get the application running(say blinking LED) for the first time and as soon as I reset it, the application stops running. I checked…
Hello,
I need to know the exact number of the clock cycles per each instruction in terms of the system clock frequency especially the "LDR" instruction
Here is the needed instruction: "LDR r3,[r1]"
Note that r1 is an address in the…
i am using LPC11C24FBD48 Controller and i initialized the Stick timer but when i run the code it is going to Hard fault handler.
__STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks){ if (ticks > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value…
Hello ,
I am new to ARM. I have a particular software package written to the Cortex M0+ MCU. How can I evaluate that these libraries will be compatible with other type of cortex M series microcontrollers. I need to perform a porting from the given MCU…
I am writing open source easy to use top level Flash drivers which are portable to use on all Cortex M0 devices (vendor independent). So I was thinking of using CMSIS flash drivers as my low level block. So are CMSIS flash driver portable on all Cortex…
Dear all,
I really appreciate if someone recommend a book to learn coding in assembly. The target processor is STM32F0. Anyone there?
I already checked those of Joseph Yiu. Actually, I need a book with clear examples.
Best regards!
For the SRAM with Cortex M0, does it need to support byte write?
What restrictions do I have with Cortex M0 if the SRAM only support 32-bit write?
Hello all,
I have access to both a SAMDA1-XPRO and a SAMC21-XPRO. I also have an ATBTCL1000-XPRO with which I need to establish a bluetooth connection to a smartphone. I powered up the ATBTLC1000-XPRO which was connected to the SAMC21-XPRO and tried locating…
Last week I attended the SmallSat symposium in Mountain View. This is the first of around half a dozen Small Satellite conferences that I’ll attend in 2018. That sounds like a lot of small satellite conferences, but there are actually many more that I…
One of the reasons that the Arm architecture is so popular is that it addresses customers concerns about security of supply. In the event that an Arm-based chip is no longer available to buy, the legacy software that was developed for it can be ported…