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DMA usages between memory to peripheral

Posted on October 16, 2015 at 07:51Hello.I'm trying to use DMA for graphic LCD control on F429(STM32Cube_FW_F4_V1.8.0).LCD spec is 160x128 and color is 16bit(RGB565) and bus type is 8bit parallel.So I'm using FMC to access LCD and now it's working w...

louiey by • Associate II
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I2C Hang problem(HAL Driver)

Posted on October 16, 2015 at 07:22Hi, I'm using STM32F407VE as I2c master and STM32F091Cb as I2c slave .In slave i have stop the i2c communication for some certain interval and start again . at that time the communication between the both is not ha...

FLast.19 by • Associate
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6MHz HSE from 8MHz creating many problems?

Posted on October 15, 2015 at 11:52 Hi.I'm using 6MHz external crystal for STM32F0 instead of 8MHz.Following standard setup,i have successfully clocked the APB & AHB at 48MHz via PLL with the following modification on the code pasted below: ...

stm32f4 discovery SDIO write block got cry failed

Posted on October 15, 2015 at 16:34I'm porting SDcard code from FatFS_uSD_FreeRTOS for stm32446_eval in STM32Cube to stm32f4-discovery.Reading blocks seems fine, but writing blocks failed.I debugged with GDB. when write it returned crc failed.here i...

sprhawk by • Associate II
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  • 1 replies
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How to use the Virtual Com via ST-Link

Posted on October 12, 2015 at 23:51I have an Discovery board. It has the provision to pass the UART of the target through the on-board ST-Link. I have searched the literature on the board and the manuals. I havent been able to find how this works. I...

rbenesh by • Associate II
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  • 4 replies
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Timer to measure PWM signal and redirect to another GPIO

Posted on October 08, 2015 at 21:45I want to create a PWM pass-through program that will read a PWM duty cycle from an RC receiver on a pin (Pulse-width: 1ms-2ms @ 50Hz) and then output that duty cycle on another GPIO Pin at 50Hz. (eventually, the p...

scook116 by • Associate II
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calcul frequency of PWM signal

Posted on October 15, 2015 at 17:56 hi all membres i try to do a code which calculate the frequency of PWM signal i try with this code but i cant get the right frequency note : i use stm32f429ZIT dicovery /* stm32f429ZIT discovery */ ...

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