From c6fe921ca84735b4833968447e8945a1cb7440e2 Mon Sep 17 00:00:00 2001 From: Andre Richter Date: Sat, 12 Oct 2019 09:22:40 +0200 Subject: [PATCH] Update README.md --- 06_drivers_gpio_uart/README.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/06_drivers_gpio_uart/README.md b/06_drivers_gpio_uart/README.md index 0135a5b2..3d6697fd 100644 --- a/06_drivers_gpio_uart/README.md +++ b/06_drivers_gpio_uart/README.md @@ -4,7 +4,7 @@ Now that we enabled safe globals in the previous tutorial, the infrastructure is laid for adding the first real device drivers. We throw out the magic QEMU -console and use a real UART now. Like real though embedded people do! +console and use a real UART now. Like real tough embedded people do! - A `DeviceDriver` trait is added for abstracting `BSP` driver implementations from kernel code. @@ -22,14 +22,14 @@ console and use a real UART now. Like real though embedded people do! 2. Copy [bootcode.bin](https://github.com/raspberrypi/firmware/raw/master/boot/bootcode.bin), [fixup.dat](https://github.com/raspberrypi/firmware/raw/master/boot/fixup.dat) and [start.elf](https://github.com/raspberrypi/firmware/raw/master/boot/start.elf) from the [Raspberry Pi firmware repo](https://github.com/raspberrypi/firmware/tree/master/boot) onto the SD card. 3. Copy our [kernel8.img](kernel8.img) onto the SD card. 4. Insert the SD card into the RPi and connect the USB serial to your host PC. - - Wiring diagram at [top-level README](../README.md#usb-serial) -5. Run `screen` (might need to install it first): + - Wiring diagram at [top-level README](../README.md#usb-serial). +5. Run `screen` (you might need to install it first): ```console sudo screen /dev/ttyUSB0 115200 ``` -6. Exit screen again by pressing ctrl-a ctrl-d or disconnecting the USB serial. +6. Exit screen by pressing ctrl-a ctrl-d or disconnecting the USB serial. ## Diff to previous ```diff