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by gothicknight
Thu Jun 27, 2019 8:49 am
Forum: Bare metal, Assembly language
Topic: Raspberry Pi 4
Replies: 59
Views: 16422

Re: Raspberry Pi 4

Our next problem is we are going to run out of GPIO pins did you see the peripherals 5 uarts, 6 SPI's, 4 I2C :-) This is quite common in embedded devices where the exposed pins serve multiple purposes. The reason is that chip manufacturers want to provide the maximum number of features the end user...
by gothicknight
Wed Jun 26, 2019 5:59 pm
Forum: Bare metal, Assembly language
Topic: Raspberry Pi 4
Replies: 59
Views: 16422

Re: Raspberry Pi 4

CPU and peripherals base addresses can already be obtained from the Linux source files: > https://github.com/raspberrypi/linux/blob/rpi-4.19.y/arch/arm/boot/dts/bcm2838-rpi-4-b.dts > https://github.com/raspberrypi/linux/blob/rpi-4.19.y/arch/arm/boot/dts/bcm2838.dtsi I already have mine with me so so...
by gothicknight
Tue Jun 25, 2019 10:44 am
Forum: Bare metal, Assembly language
Topic: Raspberry Pi 4
Replies: 59
Views: 16422

Re: Raspberry Pi 4

I'm expecting to receive my rpi4 today so I can start porting my baremetal RTOS into it. Its going to be fun :D

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