zacck / stm32f1xx_drivers

Drivers for the BluePill from Scratch

• 👋 Hi, I’m @zacck

I'm obsessed with embedded systems and how they work. In reality I would love to implement a multiboard, multiprotocol distributed embedded system something like what we have in Automobile systems.

I sometimes LiveCode my learning sessions on my Youtube Channel. Usually on Mondays, Wednesdays and Fridays at 9am SAST. Let's dive deep into Embedded systems.

stm32f1xx_drivers's Issues

Implement GPIO Interrupt Handling

Adding GPIO Interrupts

• Add EXTI struct to MCU header
• Add peripheral definition for EXTI
• Add IRQ numbers for GPIO interrupts
• Add macro to convert base address to gpio port
• Handle processor specoific NVIC registers and ICER & ISER
• Handle GPIO Interrupt mode in gpio.c
• Add GPIO API for IRQconfig, irqpriorityconfig, irqhandling

How interrupts work

• The interrupt line should be configured and enabled this is done by selecting the edge trigger and enabling interrupt requests via the interrupt mask

References
STM32F10xx Reference manual

Implement SPI Send and Receive API

We need to implement and test an API for sending and receiving data over SPI to achieve this we need to do the following.

• - Define SPI addresses and structs on the MCU header
• - Define SPI header and source files
• - Define SPI IRQNumbers
• - Define SPI Clock Set and Disable Macros

Implement SSOE configuration API for SPI

Add an API to enable a developer to set up SSOE for SPI this will be useful for multimaster applications

Implement GPIO Read from input API

Implement GPIO read input API
This in a two pronged attack item to achieve this we need to complete two APIs outlined in the GPIO header file.

1. Implement GPIO_ReadFromInputPin, this would mean using a mask and reading from the corresponding bit from the GPIO IDR
2. Implemenet GPIO_ReadFromInputPort, this would mean using a mask and reading from the GPIO IDR and returning all 16 bits

References
STm32f10xx Reference manual

Implement test Application for SPI with Interrupts