Hi All,
Can anyone tell me what is the shortest code I can use for cortex M3 to transfer (a few words) from one memory location to other(without using the DMA). It should…
Hi,there.
I am using UART of my CM3 board,and there is something strange.
I use minicom(a friendly serial communication program for linux) to Rx data came from CM3,and every thing goes well except that the last char is always lost. I have followed my program…
I would like to know if there is any tool for migrating from ARM mcu's to Atmel? can any one help me on this topic?
Hello all,
I'm new to the ARM platform and I'm having a problem discovering why my code is generating a Hard Fault.
My hardware is an mbed platform board with the NXP LPC1768 processor.
The code in question works when compiled using the mbed…
Hi,
I trying to build the peripheral around Cortex-M0 IP core thorugh AHB-lite system. Right now I have to integrate Cortex-M0 with the DDR2 SRAM (1Gb) through AHB lite.
I searched on internet which shows interfacing only through core generator (MIG…
which interrrupt priority is higher?
systick vs IRQ(external timer)
because In my case externl timer is higher then systick.
I saw that during processing in systick ISR, but suddenly pc jump to timer ISR
so I experimented print out. systick print letter…
Hi,
I am using LPC2368. It has pretty complex code running with 1 Timer interrupt (100uS continuous) , 2 UART interrupts, 1 SPI Interrupt, 1 USB interrupt and main loop.
Watchdog timer is of 5 sec and is feed in main loop and in different places.
System…
I have initialized the above controller in C++ in Keil 5uV. After the initialization, I want to jump to or enter a timing critical assembly language algorithm under the int main(void) statement. What is the preferred method to accomplish this?
MJ
hi,I write an algorithm running in cortex M0. It has some floating point multiplication.But the program always resets when encounter a floating point multiplication.And the code showed below:
for (k = 0; k < 4; k++) { tmpx = dbuffer[0] * a[k + 1…Hi folks,
Some weeks ago, I discover the mechanism of IT instruction folding supported by the cortex-M3.
As mentionned in 'Cortex-M3 Devices Generic User Guide', "In some situations, the processor can start executing the first instruction in an IT block…
what is difference between Arm7 and Arm cortex-m series??
Hi all. Nice to meet you all and glad that I have a chance to join this group=)
Recently, I will do my final year project with the title of "Smart Home Control Using Brain Wave". Yet, I am not really sure on which arm that I should choose><…
Hi All,
Im new to the Arm Community and Arm processors (newbie), and my question is as follows: Atmel ATSAMD20e implements ARM cortex M0+ processor based on ARMv6 architecture. It allows upto 32 external interrupts, with the interrupt signals connected…
Joseph,
We are using CM4 and AHB -lite bus components from ARM system development kit. We have 3 different AHB masters in the system, including CM4.
I am wondering if we could use HTRANS from each master and combined that information to gate the AHB-lite…
Greetings,
sir/madam i am working on xmc4100 after reading the reference manual i am tried to configure the clock (CCU) which was present under system control unit (SCU…
Im wondering if these documents are different types:
1. Errat Notice, PR141-PRDC-007452, v9.0, 2008
2. Software developers Errata Notice, ARM-EPM-039114, v2.0, 2014
From my point of view, these documents are the "same" (of course in another revision).…
Hello experts,
I have a question how to put instruction codes into ITCM?
I have only one experience of ITCM by STM32F7 based on Cortex-M7.
In the STM32F7 case, there is no path to write codes into ITCM from CPU.
Codes in the flash memory seem to be put automatically…
Hi, im new to ARM mbed. Im using LPC 1768. Anyone know is it suitable apply in network-on-chip project? if no which platform is more suitable. What type of network-on-project i can do. Any suggestion.
Hi,
I read example projects of Tiva-C 1294. There are many similar uses ' GPIOPinWrite(GPIO_PORTH_BASE, GPIO_PIN_2, GPIO_PIN_2);'
The prototype is :
extern void GPIOPinWrite(uint32_t ui32Port, uint8_t ui8Pins, uint8_t ui8Val)…
Hi,
I'm currently an probetion for an electronics system development company and they gave me LPC1788 and Topway LMT057DCDFWU-NBA to work with. I don`t have mentor or any kind of help. I don`t have any example.
I'm also very new to programming therefore…
Hello everyone,
I have an LPC4337 running uCLinux. I'm trying to get code to run in the M0 in parallell.
I load the code to 0x10080000, set the M0APPMEMMAP to 0x10080000, release the M0APP Reset and nothing happens. I have to reset the M0-core using…