About EthanMankins

EthanMankins · 2024-11-18

I am using SPI to communicate between STM32H7B3I-DK (master) and Nucleo-H743ZI(Slave). My Data transmits as expected; however, after transmission the MISO and MOSI lines stay high. I have Master Keep IO State Enabled on both.I am not using HW NSS, an...

EthanMankins · 2024-11-18

I am using the Nucleo-H743ZI, with a SPI ISR I wrote originally on the STM32H7B3I-DK board. However, when I usevolatile uint8_t rxBuffer; volatile uint8_t txBuffer; *((__IO uint8_t *)&hspi->Instance->TXDR) = txBuffer; //or rxBuffer = *((__IO uint8...

EthanMankins · 2024-11-14

SEE EDITI am using the STM32H7B3I-DK. I am trying to write my own simple SPI ISR to handle transmitting and receiving of just one byte I have gotten the slave working with my ISR (while master used HAL). I am now implementing on the master and having...

EthanMankins · 2024-11-11

I am using STM32H7B3I-DK running a touchgfx application and acting as SPI Master, and Nucleo-H743ZI as SPI Slave. Both are configured in interrupt mode not using HWNSS. The Master is sending 1,2,3,4,5,6,7,8 but the slave is receiving random numbersI ...

EthanMankins · 2024-11-08

I am trying to make a very simple SPI ISR to read the RXDR and store the value to a buffer. However, I cannot get the ISR to even trigger without using HAL_SPI_Receive_IT(). I do not want to use the callbacks or the default IRQ generated by cube. I c...

EthanMankins · 2024-11-18

I am using CubeIDE, the thing is that it doesn't show up in the Problems or console log. It just underlines yellow and has the yellow question mark... i found somewhere else in my code that required me to add "-u _scanf_float" to my G++ linker and no...

EthanMankins · 2024-11-13

The issue was likely because of noise. FIX: Twisted all com wires tightly: GND SCK MOSI MISO NSS

EthanMankins · 2024-11-13

@Pavel A. @PGump.1 I have just found that it seems the code is actually fine, and that it is something hardware related. When I measure SCK with an oscilloscope everything works perfect, but as soon as the probe is removed from SCK random numbers app...

EthanMankins · 2024-11-13

I recently got it working yesterday by making sure my buffer was volatile. I tested multiple times and it worked great; however, this morning I tried again now it is showing random numbers again... I did not change anything. The NSS is getting pulled...

EthanMankins · 2024-11-11

@Pavel A. I have only seen "SPI_FullDuplex_ComIT" which uses the HAL library calls to transmit and receive. I believe I have taken the necessary parts of the HAL functions, Enable() and flag clearing. However, it seems there may be more that I am mis...

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SPI DATA Stays High

SPI Syntax Error From Generated code

SPI Triggering GPIO

SPI Interrupt Driven Slave Receive Error

SPI Slave Receive Interrupt

Re: SPI Syntax Error From Generated code

Re: SPI Interrupt Driven Slave Receive Error

Re: SPI Interrupt Driven Slave Receive Error

Re: SPI Interrupt Driven Slave Receive Error

Re: SPI Interrupt Driven Slave Receive Error