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stm32f0: Various fixes according to comment: (#1453)

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* Copyright in log.c
* GPIO check completely removed
* generic/timer_irq added
* Change in doc section

Signed-off-by: Eugene Krashtan <eug.krashtan@gmail.com>
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Eugene Krashtan 2019-03-28 16:21:51 +02:00 • committed by KevinOConnor
parent 312cabc3f7
commit c7330e07a4
8 changed files with 25 additions and 124 deletions
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docs/stm32f0_CAN.md
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@ -7,6 +7,8 @@ Required components
#### MCP2515 module
![MCP2515](img/mcp2515.jpg)
or this
![CAN/RS485 hat](img/canhat.jpg)
#### St-link dongle
@ -17,7 +19,7 @@ Adding CAN bus to Raspberry Pi
==============================
(Based on Quick Guide https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=141052)
First of all, it’s necessary to modify the CAN-module from ebay, because it has
First of all, (only if you have small CAN module) it’s necessary to modify the CAN-module from ebay, because it has
only one VCC pin, but the MCP2515 needs to be powered from 3V3 and the TJA1050
CAN-transceiver needs to be powered from 5V. Powering both chips from 5V would
work, but then a level-shifter for the SPI would be needed. The Pi's GPIO pins
@ -135,5 +137,6 @@ Now "make flash" command can upload HEX into connected board
Pins allocation
===============
Configurations with CAN and Serial port uses different pins, and firmware contains only
actual pins initialization.
Configurations with CAN and Serial port uses different pins, and during enumeration
process firmware reports all possible pin names. But actually you can use only
existing pins, not involved in communication. Wrong pins will generate shutdown.