About CLi H.1

CLi H.1 · 2021-03-18

Hello , i would like to receive data via SPI . i tried to use getting data from AD7606 via HAL_SPI_Receive_dma , but i always failed. i do not know which step i miss or wrong . Could you give me hint or solution? Thanks for very much . int main(void...

CLi H.1 · 2021-01-04

Hello i am a newbie in Freertos. i have a practice project about two threads. one thread for data acquisition from AD7606 , another thread for data transmission by uart in LabVIEW . Unfortunately, when i display data in LabVIEW which get from thread...

CLi H.1 · 2020-12-30

Recently, I've been worked with the esp8266 and stmf407 discovery board.I used stm32f407 (master), and connect to esp8266 (slave) via SPIHowever, the package I got always missed 1 package. To be more specific, I've tried to send some uint8_t dummy da...

CLi H.1 · 2021-03-18

Thanks your suggestion . i changed receive_buffer[256] to global variable . Then i fixed my code ,and dma work! But there are some problems that I always received same data . As if i didn't receive any new data. void HAL_SPI_MspInit(SPI_HandleTypeDef...

CLi H.1 · 2021-03-18

Thanks for your apply. I'm sorry responded late . You gave me big hand to resolve this problem.First , i used Xstreambuffer to replace queue . Second , I used task Notifications to replace semaphore.NOW , it's data sampling rate could achieve 20KHZ...

CLi H.1 · 2021-01-04

Thanks , you give me a big hand.

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