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loopback CAN mode

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eddyem 2018-06-21 16:04:44 +03:00
parent 7a69f7b3e7
commit 9d9536eb2b
32 changed files with 24133 additions and 2 deletions
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1
F0-nolib/Readme.md
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@ -4,6 +4,7 @@ Samples for STM32F042-nucleo and chinese STM32F030-based devboard
This directory contains examples for F0 without any library This directory contains examples for F0 without any library
- blink - simple LED blink - blink - simple LED blink
- canbus - CAN bus on STM32F042C6T6
- htu21d_nucleo - operaing with HTU-21D in STM32F042-nucleo - htu21d_nucleo - operaing with HTU-21D in STM32F042-nucleo
- morze - for STM32F030, echo data from USART1 on TIM3CH1 (PA6) as Morze code - morze - for STM32F030, echo data from USART1 on TIM3CH1 (PA6) as Morze code
- tsys01_nucleo - read two TSYS01 sensors using STM32F042 - tsys01_nucleo - read two TSYS01 sensors using STM32F042

22
F0-nolib/canbus/kicad/acs712.lib Normal file
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EESchema-LIBRARY Version 2.3 Date: Sun 04 May 2014 09:27:50 PM MSK
#encoding utf-8
#
# ACS712
#
DEF ACS712 U 0 40 Y Y 1 F N
F0 "U" 0 300 60 H V C CNN
F1 "ACS712" 0 -350 60 H V C CNN
DRAW
S -450 250 450 -300 0 1 0 N
X IP+ 1 -550 150 300 R 50 50 1 1 I
X IP+ 2 -550 50 300 R 50 50 1 1 I
X IP- 3 -550 -100 300 R 50 50 1 1 I
X IP- 4 -550 -200 300 R 50 50 1 1 I
X GND 5 550 -200 300 L 50 50 1 1 I
X FILTER 6 550 -100 300 L 50 50 1 1 I
X VIOUT 7 550 50 300 L 50 50 1 1 I
X Vcc 8 550 150 300 L 50 50 1 1 I
ENDDRAW
ENDDEF
#
#End Library

63
F0-nolib/canbus/kicad/bom.ini Normal file
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[BOM_OPTIONS]
; General BoM options here
; If 'ignore_dnf' option is set to 1, rows that are not to be fitted on the PCB will not be written to the BoM file
ignore_dnf = 1
; If 'number_rows' option is set to 1, each row in the BoM will be prepended with an incrementing row number
number_rows = 1
; If 'group_connectors' option is set to 1, connectors with the same footprints will be grouped together, independent of the name of the connector
group_connectors = 1
; If 'test_regex' option is set to 1, each component group will be tested against a number of regular-expressions (specified, per column, below). If any matches are found, the row is ignored in the output file
test_regex = 1
; If 'merge_blank_fields' option is set to 1, component groups with blank fields will be merged into the most compatible group, where possible
merge_blank_fields = 1
; Field name used to determine if a particular part is to be fitted
fit_field = Config
[IGNORE_COLUMNS]
; Any column heading that appears here will be excluded from the Generated BoM
; Titles are case-insensitive
Part Lib
Footprint Lib
[GROUP_FIELDS]
; List of fields used for sorting individual components into groups
; Components which match (comparing *all* fields) will be grouped together
; Field names are case-insensitive
Part
Part Lib
Value
Footprint
Footprint Lib
[COMPONENT_ALIASES]
; A series of values which are considered to be equivalent for the part name
; Each line represents a tab-separated list of equivalent component name values
; e.g. 'c c_small cap' will ensure the equivalent capacitor symbols can be grouped together
; Aliases are case-insensitive
c c_small cap capacitor
r r_small res resistor
sw switch
l l_small inductor
zener zenersmall
d diode d_small
[REGEX_INCLUDE]
; A series of regular expressions used to include parts in the BoM
; If there are any regex defined here, only components that match against ANY of them will be included in the BOM
; Column names are case-insensitive
; Format is: "ColumName Regex" (tab-separated)
[REGEX_EXCLUDE]
; A series of regular expressions used to exclude parts from the BoM
; If a component matches ANY of these, it will be excluded from the BoM
; Column names are case-insensitive
; Format is: "ColumName Regex" (tab-separated)
References ^TP[0-9]*
References ^FID
Part mount.*hole
Part solder.*bridge
Part test.*point
Footprint test.*point
Footprint mount.*hole
Footprint fiducial

190
F0-nolib/canbus/kicad/elements.lib Normal file
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EESchema-LIBRARY Version 2.3
#encoding utf-8
#
# 74HC4051
#
DEF 74HC4051 U 0 10 Y Y 1 F N
F0 "U" 0 0 50 H V C CNN
F1 "74HC4051" 0 -150 50 H V C CNN
F2 "" 0 0 50 H V C CNN
F3 "" 0 0 50 H V C CNN
$FPLIST
SO16
TSSOP16
SSOP16
DHVQFN16
$ENDFPLIST
DRAW
S -400 450 400 -450 0 1 0 N
X Y4 1 700 -50 300 L 50 50 1 1 B
X Y6 2 700 -250 300 L 50 50 1 1 B
X Z 3 0 -750 300 U 50 50 1 1 B
X Y7 4 700 -350 300 L 50 50 1 1 B
X Y5 5 700 -150 300 L 50 50 1 1 B
X ~E 6 -700 -350 300 R 50 50 1 1 I I
X VEE 7 -700 0 300 R 50 50 1 1 W
X GND 8 -700 -200 300 R 50 50 1 1 W
X S2 9 -700 150 300 R 50 50 1 1 I
X S1 10 -700 250 300 R 50 50 1 1 I
X S0 11 -700 350 300 R 50 50 1 1 I
X Y3 12 700 50 300 L 50 50 1 1 B
X Y0 13 700 350 300 L 50 50 1 1 B
X Y1 14 700 250 300 L 50 50 1 1 B
X Y2 15 700 150 300 L 50 50 1 1 B
X VCC 16 -700 -100 300 R 50 50 1 1 W
ENDDRAW
ENDDEF
#
# D_Schottky_x2_ACom_AKK
#
DEF D_Schottky_x2_ACom_AKK D 0 30 Y N 1 F N
F0 "D" 50 -100 50 H V C CNN
F1 "D_Schottky_x2_ACom_AKK" 0 100 50 H V C CNN
F2 "" 0 0 50 H V C CNN
F3 "" 0 0 50 H V C CNN
DRAW
P 2 0 1 0 -140 0 150 0 N
P 2 0 1 0 0 0 0 -100 N
P 3 0 1 8 -150 50 -150 -50 -150 -50 N
P 3 0 1 8 150 50 150 -50 150 -50 N
P 4 0 1 8 -150 50 -170 50 -170 40 -170 40 N
P 4 0 1 8 150 -50 170 -50 170 -40 170 -40 N
P 4 0 1 8 150 50 130 50 130 40 130 40 N
P 5 0 1 8 -130 -40 -130 -50 -150 -50 -150 -50 -150 -50 N
P 6 0 1 8 -50 -50 -150 0 -50 50 -50 -50 -50 -50 -50 -50 N
P 6 0 1 8 50 50 150 0 50 -50 50 50 50 50 50 50 N
X A 1 0 -200 100 U 50 50 0 1 P
X K 2 -300 0 150 R 50 50 0 1 P
X K 3 300 0 150 L 50 50 0 1 P
ENDDRAW
ENDDEF
#
# LM1117-ADJ
#
DEF LM1117-ADJ U 0 30 Y Y 1 F N
F0 "U" 100 -250 50 H V C CNN
F1 "LM1117-ADJ" 0 250 50 H V C CNN
F2 "" 0 0 50 H V C CNN
F3 "" 0 0 50 H V C CNN
ALIAS LM1117-1.8 LM1117-2.5 LM1117-3.3 LM1117-5.0
$FPLIST
SOT-223*
TO-263*
TO-252*
$ENDFPLIST
DRAW
S -200 -200 200 200 0 1 10 f
X GND/ADJ 1 0 -300 100 U 50 50 1 1 W
X VO 2 300 0 100 L 50 50 1 1 w
X VI 3 -300 0 100 R 50 50 1 1 W
ENDDRAW
ENDDEF
#
# PESD1CAN
#
DEF PESD1CAN D 0 30 Y N 1 F N
F0 "D" 0 -350 50 H V C CNN
F1 "PESD1CAN" 50 150 50 H V C CNN
F2 "" 0 0 50 H V C CNN
F3 "" 0 0 50 H V C CNN
$FPLIST
SOT23
$ENDFPLIST
DRAW
S -200 100 300 -300 0 1 0 N
P 2 0 1 0 -140 -200 150 -200 N
P 2 0 1 0 -140 0 150 0 N
P 3 0 1 8 -150 -150 -150 -250 -150 -250 N
P 3 0 1 8 -150 50 -150 -50 -150 -50 N
P 3 0 1 8 150 -150 150 -250 150 -250 N
P 3 0 1 8 150 50 150 -50 150 -50 N
P 4 0 1 8 -150 -150 -170 -150 -170 -160 -170 -160 N
P 4 0 1 8 -150 50 -170 50 -170 40 -170 40 N
P 4 0 1 8 150 -250 170 -250 170 -240 170 -240 N
P 4 0 1 8 150 -150 130 -150 130 -160 130 -160 N
P 4 0 1 8 150 -50 170 -50 170 -40 170 -40 N
P 4 0 1 0 150 0 250 0 250 -200 150 -200 N
P 4 0 1 8 150 50 130 50 130 40 130 40 N
P 5 0 1 8 -130 -240 -130 -250 -150 -250 -150 -250 -150 -250 N
P 5 0 1 8 -130 -40 -130 -50 -150 -50 -150 -50 -150 -50 N
P 6 0 1 8 -50 -250 -150 -200 -50 -150 -50 -250 -50 -250 -50 -250 N
P 6 0 1 8 -50 -50 -150 0 -50 50 -50 -50 -50 -50 -50 -50 N
P 6 0 1 8 50 -150 150 -200 50 -250 50 -150 50 -150 50 -150 N
P 6 0 1 8 50 50 150 0 50 -50 50 50 50 50 50 50 N
X K 1 -300 0 150 R 50 50 0 1 P
X K 2 -300 -200 150 R 50 50 0 1 P
X O 3 400 -100 150 L 50 50 0 1 P
ENDDRAW
ENDDEF
#
# TPS2051
#
DEF TPS2051 U 0 40 Y Y 1 F N
F0 "U" 0 -300 60 H V C CNN
F1 "TPS2051" 0 300 60 H V C CNN
F2 "" 0 0 60 H I C CNN
F3 "" 0 0 60 H I C CNN
DRAW
S -250 250 250 -250 0 1 0 N
X GND 1 -450 150 200 R 50 50 1 1 W
X IN 2 -450 50 200 R 50 50 1 1 W
X IN 3 -450 -50 200 R 50 50 1 1 P
X EN 4 -450 -150 200 R 50 50 1 1 I
X ~OC 5 450 -150 200 L 50 50 1 1 O
X OUT 6 450 -50 200 L 50 50 1 1 P
X OUT 7 450 50 200 L 50 50 1 1 P
X OUT 8 450 150 200 L 50 50 1 1 w
ENDDRAW
ENDDEF
#
# USB6B1
#
DEF USB6B1 D 0 30 Y N 1 F N
F0 "D" 0 -450 50 H V C CNN
F1 "USB6B1" 0 400 50 H V C CNN
F2 "" 200 -100 50 V V C CNN
F3 "" 200 -100 50 V V C CNN
$FPLIST
SO8
$ENDFPLIST
DRAW
C -150 -300 7 0 1 0 N
C -150 100 7 0 1 0 N
C -150 300 7 0 1 0 N
C 0 -300 7 0 1 0 N
C 0 -100 7 0 1 0 N
C 0 300 7 0 1 0 N
C 200 -300 7 0 1 0 N
C 200 300 7 0 1 0 N
S -300 -100 300 -100 0 1 0 N
S -300 300 300 300 0 1 0 N
S -200 -150 -100 -150 0 1 0 N
S -200 250 -100 250 0 1 0 N
S -150 300 -150 -300 0 1 0 N
S -50 -150 50 -150 0 1 0 N
S -50 250 50 250 0 1 0 N
S 0 300 0 -300 0 1 0 N
S 200 300 200 -300 0 1 0 N
S 300 -300 -300 -300 0 1 0 N
S 300 100 -300 100 0 1 0 N
P 3 0 1 8 150 50 250 50 250 50 N
P 4 0 1 8 150 50 150 30 160 30 160 30 N
P 4 0 1 8 250 50 250 70 240 70 240 70 N
P 5 0 1 0 -250 350 300 350 300 -350 -250 -350 -250 350 N
P 6 0 1 8 -200 -250 -150 -150 -100 -250 -200 -250 -200 -250 -200 -250 N
P 6 0 1 8 -200 150 -150 250 -100 150 -200 150 -200 150 -200 150 N
P 6 0 1 8 -50 -250 0 -150 50 -250 -50 -250 -50 -250 -50 -250 N
P 6 0 1 8 -50 150 0 250 50 150 -50 150 -50 150 -50 150 N
P 6 0 1 8 150 -50 200 50 250 -50 150 -50 150 -50 150 -50 N
X VCC 1 -500 300 200 R 50 50 1 1 P
X I/O1 2 -500 100 200 R 50 50 1 1 P
X I/O2 3 -500 -100 200 R 50 50 1 1 P
X GND 4 -500 -300 200 R 50 50 1 1 P
X GND 5 500 -300 200 L 50 50 1 1 P
X I/O2 6 500 -100 200 L 50 50 1 1 P
X I/O1 7 500 100 200 L 50 50 1 1 P
X VCC 8 500 300 200 L 50 50 1 1 P
ENDDRAW
ENDDEF
#
#End Library

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F0-nolib/canbus/kicad/fp-lib-table Normal file
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(fp_lib_table
(lib (name my_footprints)(type KiCad)(uri "$(KIPRJMOD)/my_footprints.pretty")(options "")(descr ""))
)

9
F0-nolib/canbus/kicad/my_footprints.pretty/Hole_3mm.kicad_mod Normal file
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(module Hole_3mm (layer F.Cu) (tedit 5913F6E4)
(fp_text reference REF** (at 0 3.81) (layer F.SilkS) hide
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text value Hole_3mm (at 0 -7.62) (layer F.Fab) hide
(effects (font (size 1 1) (thickness 0.15)))
)
(pad 1 thru_hole circle (at 0 0) (size 5 5) (drill 3) (layers *.Cu *.Mask))
)

31
F0-nolib/canbus/kicad/my_footprints.pretty/RJ9-4P4C.kicad_mod Normal file
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(module RJ9-4P4C (layer F.Cu) (tedit 555F7A30)
(fp_text reference J** (at 0 -10.1346) (layer F.SilkS)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text value RJ9-4P4C (at 0 10.2108) (layer F.Fab) hide
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_circle (center 0 0) (end -0.25 0) (layer F.CrtYd) (width 0.05))
(fp_line (start -5.84 -9.25) (end 5.84 -9.25) (layer F.CrtYd) (width 0.05))
(fp_line (start 5.84 -9.25) (end 5.84 9.25) (layer F.CrtYd) (width 0.05))
(fp_line (start 5.84 9.25) (end -5.84 9.25) (layer F.CrtYd) (width 0.05))
(fp_line (start -5.84 9.25) (end -5.84 -9.25) (layer F.CrtYd) (width 0.05))
(fp_line (start 0 -0.35) (end 0 0.35) (layer F.CrtYd) (width 0.05))
(fp_line (start -0.35 0) (end 0.35 0) (layer F.CrtYd) (width 0.05))
(fp_line (start -5.59 9) (end -5.59 -9) (layer F.Fab) (width 0.12))
(fp_line (start -5.59 -9) (end 5.59 -9) (layer F.Fab) (width 0.12))
(fp_line (start 5.59 -9) (end 5.59 9) (layer F.Fab) (width 0.12))
(fp_line (start 5.59 9) (end -5.59 9) (layer F.Fab) (width 0.12))
(fp_line (start -5.59 8.8) (end -5.59 -9) (layer F.SilkS) (width 0.12))
(fp_line (start -5.59 -9) (end 5.59 -9) (layer F.SilkS) (width 0.12))
(fp_line (start 5.59 -9) (end 5.59 8.8) (layer F.SilkS) (width 0.12))
(fp_circle (center 3.81 1.15) (end 5.75 1.15) (layer B.CrtYd) (width 0.05))
(fp_circle (center -3.81 1.15) (end -5.75 1.15) (layer B.CrtYd) (width 0.05))
(fp_circle (center -1.905 -6.12) (end -1.805 -6.12) (layer F.SilkS) (width 0.2))
(pad 1 thru_hole circle (at -1.905 -5.2) (size 1.2 1.2) (drill 0.8) (layers *.Cu *.Mask))
(pad 2 thru_hole circle (at -0.635 -7.74) (size 1.2 1.2) (drill 0.8) (layers *.Cu *.Mask))
(pad 3 thru_hole circle (at 0.635 -5.2) (size 1.2 1.2) (drill 0.8) (layers *.Cu *.Mask))
(pad 4 thru_hole circle (at 1.905 -7.74) (size 1.2 1.2) (drill 0.8) (layers *.Cu *.Mask))
(pad "" np_thru_hole circle (at -3.81 1.15) (size 3.2 3.2) (drill 3.2) (layers *.Cu *.Mask))
(pad "" np_thru_hole circle (at 3.81 1.15) (size 3.2 3.2) (drill 3.2) (layers *.Cu *.Mask))
)

12
F0-nolib/canbus/kicad/my_footprints.pretty/SMD_conn_4x2.5mm.kicad_mod Normal file
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(module SMD_conn_4x2.5mm (layer F.Cu) (tedit 58B86145)
(fp_text reference REF** (at 0 3.81) (layer F.SilkS)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text value SMD_conn_4x2.5mm (at 0 -3.81) (layer F.Fab)
(effects (font (size 1 1) (thickness 0.15)))
)
(pad 1 smd rect (at -3.81 0) (size 1.5 5) (layers F.Cu F.Paste F.Mask))
(pad 2 smd rect (at -1.27 0) (size 1.5 5) (layers F.Cu F.Paste F.Mask))
(pad 3 smd rect (at 1.27 0) (size 1.5 5) (layers F.Cu F.Paste F.Mask))
(pad 4 smd rect (at 3.81 0) (size 1.5 5) (layers F.Cu F.Paste F.Mask))
)

10
F0-nolib/canbus/kicad/my_footprints.pretty/TH_via.kicad_mod Normal file
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(module TH_via (layer F.Cu) (tedit 5A5E619A)
(fp_text reference REF** (at 0 0.5) (layer F.SilkS) hide
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text value TH_via (at 0 -0.5) (layer F.Fab) hide
(effects (font (size 1 1) (thickness 0.15)))
)
(pad 1 thru_hole circle (at 0 0) (size 1.5 1.5) (drill 0.8) (layers *.Cu *.Mask)
(zone_connect 1))
)

4189
F0-nolib/canbus/kicad/stm32-B.Cu.svg Normal file
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F0-nolib/canbus/kicad/stm32-B.SilkS.svg Normal file
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<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns="http://www.w3.org/2000/svg" version="1.1"
width="8.6233cm" height="9.55802cm" viewBox="0 0 33950 37630 ">
<title>SVG Picture created as stm32-B.SilkS.svg date 2018/06/18 13:58:33 </title>
<desc>Picture generated by PCBNEW </desc>
<g style="fill:#000000; fill-opacity:1;stroke:#000000; stroke-opacity:1;
stroke-linecap:round; stroke-linejoin:round; "
transform="translate(0 0) scale(1 1)">
</g>
<g style="fill:#000000; fill-opacity:0.0;
stroke:#000000; stroke-width:-0.000393701; stroke-opacity:1;
stroke-linecap:round; stroke-linejoin:round;">
</g>
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stroke:#000000; stroke-width:59.0551; stroke-opacity:1;
stroke-linecap:round; stroke-linejoin:round;">
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EESchema-LIBRARY Version 2.3
#encoding utf-8
#
# LM1117-3.3-RESCUE-stm32
#
DEF LM1117-3.3-RESCUE-stm32 U 0 30 Y Y 1 F N
F0 "U" 100 -250 50 H V C CNN
F1 "LM1117-3.3-RESCUE-stm32" 0 250 50 H V C CNN
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#
# MAX471-RESCUE-stm32
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#
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[editor]
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BINARY = canbus
BOOTPORT ?= /dev/ttyUSB0
BOOTSPEED ?= 57600
# MCU FAMILY
FAMILY = F0
# MCU code
MCU = F042x6
# hardware definitions
DEFS += -DUSARTNUM=1
#DEFS += -DCHECK_TMOUT
#DEFS += -DEBUG
# change this linking script depending on particular MCU model,
# for example, if you have STM32F103VBT6, you should write:
LDSCRIPT = ld/stm32f042k.ld
INDEPENDENT_HEADERS=
FP_FLAGS ?= -msoft-float
ASM_FLAGS = -mthumb -mcpu=cortex-m0 -march=armv6-m -mtune=cortex-m0
ARCH_FLAGS = $(ASM_FLAGS) $(FP_FLAGS)
###############################################################################
# Executables
OPREFIX ?= /opt/bin/arm-none-eabi
#PREFIX ?= /usr/x86_64-pc-linux-gnu/arm-none-eabi/gcc-bin/7.3.0/arm-none-eabi
PREFIX ?= $(OPREFIX)
RM := rm -f
RMDIR := rmdir
CC := $(PREFIX)-gcc
LD := $(PREFIX)-gcc
AR := $(PREFIX)-ar
AS := $(PREFIX)-as
OBJCOPY := $(OPREFIX)-objcopy
OBJDUMP := $(OPREFIX)-objdump
GDB := $(OPREFIX)-gdb
STFLASH := $(shell which st-flash)
STBOOT := $(shell which stm32flash)
###############################################################################
# Source files
OBJDIR = mk
LDSCRIPT ?= $(BINARY).ld
SRC := $(wildcard *.c)
OBJS := $(addprefix $(OBJDIR)/, $(SRC:%.c=%.o))
STARTUP = $(OBJDIR)/startup.o
OBJS += $(STARTUP)
DEPS := $(OBJS:.o=.d)
INC_DIR ?= ../../inc
INCLUDE := -I$(INC_DIR)/F0 -I$(INC_DIR)/cm
LIB_DIR := $(INC_DIR)/ld
###############################################################################
# C flags
CFLAGS += -O2 -g -MD -D__thumb2__=1
CFLAGS += -Wall -Wextra -Wshadow -Wimplicit-function-declaration
CFLAGS += -Wredundant-decls $(INCLUDE)
# -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += -fno-common -ffunction-sections -fdata-sections
###############################################################################
# Linker flags
LDFLAGS += --static -nostartfiles
#--specs=nano.specs
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -T$(LDSCRIPT)
LDFLAGS += -Wl,-Map=$(OBJDIR)/$(BINARY).map
LDFLAGS += -Wl,--gc-sections
###############################################################################
# Used libraries
LDLIBS += -Wl,--start-group -lc -lgcc -Wl,--end-group
LDLIBS += $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
DEFS += -DSTM32$(FAMILY) -DSTM32$(MCU)
#.SUFFIXES: .elf .bin .hex .srec .list .map .images
#.SECONDEXPANSION:
#.SECONDARY:
ELF := $(OBJDIR)/$(BINARY).elf
LIST := $(OBJDIR)/$(BINARY).list
BIN := $(BINARY).bin
HEX := $(BINARY).hex
all: bin list
elf: $(ELF)
bin: $(BIN)
hex: $(HEX)
list: $(LIST)
ifneq ($(MAKECMDGOALS),clean)
-include $(DEPS)
endif
$(OBJDIR):
mkdir $(OBJDIR)
$(STARTUP): $(INC_DIR)/startup/vector.c
$(CC) $(CFLAGS) $(DEFS) $(INCLUDE) $(ARCH_FLAGS) -o $@ -c $<
$(OBJDIR)/%.o: %.c
@echo " CC $<"
$(CC) $(CFLAGS) $(DEFS) $(INCLUDE) $(ARCH_FLAGS) -o $@ -c $<
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$(BIN): $(ELF)
@echo " OBJCOPY $(BIN)"
$(OBJCOPY) -Obinary $(ELF) $(BIN)
$(HEX): $(ELF)
@echo " OBJCOPY $(HEX)"
$(OBJCOPY) -Oihex $(ELF) $(HEX)
$(LIST): $(ELF)
@echo " OBJDUMP $(LIST)"
$(OBJDUMP) -S $(ELF) > $(LIST)
$(ELF): $(OBJDIR) $(OBJS)
@echo " LD $(ELF)"
$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJS) $(LDLIBS) -o $(ELF)
clean:
@echo " CLEAN"
$(RM) $(OBJS) $(DEPS) $(ELF) $(HEX) $(LIST) $(OBJDIR)/*.map *.d
@rmdir $(OBJDIR) 2>/dev/null || true
flash: $(BIN)
@echo " FLASH $(BIN)"
$(STFLASH) write $(BIN) 0x8000000
boot: $(BIN)
@echo " LOAD $(BIN) through bootloader"
$(STBOOT) -b$(BOOTSPEED) $(BOOTPORT) -w $(BIN)
gentags:
CFLAGS="$(CFLAGS) $(DEFS)" geany -g $(BINARY).c.tags *[hc] 2>/dev/null
.PHONY: clean flash boot gentags

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/*
* geany_encoding=koi8-r
* can.c
*
* Copyright 2018 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
#include "can.h"
#include "hardware.h"
#include "usart.h"
#define CMD_TOGGLE (0xDA)
#define CAN_ID_MASK (0xFF70U)
#define CAN_ID1 (0x651U)
#define CAN_ID2 (0x652U)
#define FILTER_LIST (0) /* 0: filter mode = identifier mask, 1: filter mode = identifier list */
#define CAN_FLAG_GOTDUMMY (1)
static uint8_t CAN_addr = 255;
static uint8_t CAN_flags = 0;
// get CAN address data from GPIO pins
void readCANaddr(){
CAN_addr = READ_CAN_INV_ADDR();
CAN_addr = ~CAN_addr & 0x7;
}
uint8_t getCANaddr(){
return CAN_addr;
}
void CAN_setup(){
if(CAN_addr == 255) readCANaddr();
// Configure GPIO: PB8 - CAN_Rx, PB9 - CAN_Tx
/* (1) Select AF mode (10) on PB8 and PB9 */
/* (2) AF4 for CAN signals */
GPIOB->MODER = (GPIOB->MODER & ~(GPIO_MODER_MODER8 | GPIO_MODER_MODER9))
| (GPIO_MODER_MODER8_AF | GPIO_MODER_MODER9_AF); /* (1) */
GPIOB->AFR[1] = (GPIOB->AFR[1] &~ (GPIO_AFRH_AFRH0 | GPIO_AFRH_AFRH1))\
| (4 << (0 * 4)) | (4 << (1 * 4)); /* (2) */
/* Enable the peripheral clock CAN */
RCC->APB1ENR |= RCC_APB1ENR_CANEN;
/* Configure CAN */
/* (1) Enter CAN init mode to write the configuration */
/* (2) Wait the init mode entering */
/* (3) Exit sleep mode */
/* (4) Loopback mode, set timing to 1Mb/s: BS1 = 4, BS2 = 3, prescaler = 6 */
/* (5) Leave init mode */
/* (6) Wait the init mode leaving */
/* (7) Enter filter init mode, (16-bit + mask, filter 0 for FIFO 0) */
/* (8) Acivate filter 0 */
/* (9) Identifier list mode */
/* (11) Set the Id list */
/* (12) Set the Id + mask (all bits of standard id will care) */
/* (13) Leave filter init */
/* (14) Set FIFO0 message pending IT enable */
CAN->MCR |= CAN_MCR_INRQ; /* (1) */
while((CAN->MSR & CAN_MSR_INAK)!=CAN_MSR_INAK) /* (2) */
{
/* add time out here for a robust application */
}
CAN->MCR &=~ CAN_MCR_SLEEP; /* (3) */
CAN->BTR |= CAN_BTR_LBKM | 2 << 20 | 3 << 16 | 5 << 0; /* (4) */
CAN->MCR &=~ CAN_MCR_INRQ; /* (5) */
while((CAN->MSR & CAN_MSR_INAK)==CAN_MSR_INAK) /* (6) */
{
/* add time out here for a robust application */
}
CAN->FMR = CAN_FMR_FINIT; /* (7) */
CAN->FA1R = CAN_FA1R_FACT0; /* (8) */
#if (FILTER_LIST)
CAN->FM1R = CAN_FM1R_FBM0; /* (9) */
CAN->sFilterRegister[0].FR1 = CAN_ID2 << 5 | CAN_ID1 << (16+5); /* (10) */
#else
CAN->sFilterRegister[0].FR1 = CAN_ID1 << 5 | CAN_ID_MASK << 16; /* (11) */
#endif /* FILTER_LIST */
CAN->FMR &=~ CAN_FMR_FINIT; /* (12) */
CAN->IER |= CAN_IER_FMPIE0; /* (13) */
/* Configure IT */
/* (14) Set priority for CAN_IRQn */
/* (15) Enable CAN_IRQn */
NVIC_SetPriority(CEC_CAN_IRQn, 0); /* (16) */
NVIC_EnableIRQ(CEC_CAN_IRQn); /* (17) */
}
void can_proc(){
if(CAN_flags){
if(CAN_flags & CAN_FLAG_GOTDUMMY){
SEND("Got dummy message\n");
}
CAN_flags = 0;
}
}
void can_send_dummy(){
if((CAN->TSR & CAN_TSR_TME0) == CAN_TSR_TME0){ /* check mailbox 0 is empty */
CAN->sTxMailBox[0].TDTR = 1; /* fill data length = 1 */
CAN->sTxMailBox[0].TDLR = CMD_TOGGLE; /* fill 8-bit data */
CAN->sTxMailBox[0].TIR = (uint32_t)(CAN_ID1 << 21 | CAN_TI0R_TXRQ); /* fill Id field and request a transmission */
}
}
void cec_can_isr(){
uint32_t CAN_ReceiveMessage = 0;
if(CAN->RF0R & CAN_RF0R_FMP0){ /* check if a message is filtered and received by FIFO 0 */
LED_blink(LED1); /* Toggle LED1 */
CAN_ReceiveMessage = CAN->sFIFOMailBox[0].RDLR; /* read data */
CAN->RF0R |= CAN_RF0R_RFOM0; /* release FIFO */
if((CAN_ReceiveMessage & 0xFF) == CMD_TOGGLE){
CAN_flags |= CAN_FLAG_GOTDUMMY;
}
}
}

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/*
* geany_encoding=koi8-r
* can.h
*
* Copyright 2018 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
#pragma once
#ifndef __CAN_H__
#define __CAN_H__
#include "hardware.h"
void readCANaddr();
uint8_t getCANaddr();
void CAN_setup();
void can_send_dummy();
void can_proc();
#endif // __CAN_H__

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43
F0-nolib/canbus/src/hardware.c Normal file
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/*
* geany_encoding=koi8-r
* hardware.c - hardware-dependent macros & functions
*
* Copyright 2018 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
#include "hardware.h"
#include "usart.h"
void gpio_setup(void){
// here we turn on clocking for all periph.
RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOCEN | RCC_AHBENR_DMAEN;
// Set LEDS (PC13/14) as output
GPIOC->MODER = (GPIOC->MODER & ~(GPIO_MODER_MODER13 | GPIO_MODER_MODER14)
) |
GPIO_MODER_MODER13_O | GPIO_MODER_MODER14_O;
// PB14(0), PB15(1), PA8(2) - CAN address, pullup inputs
GPIOA->PUPDR = (GPIOA->PUPDR & ~(GPIO_PUPDR_PUPDR8)
) |
GPIO_PUPDR_PUPDR8_0;
GPIOB->PUPDR = (GPIOB->PUPDR & ~(GPIO_PUPDR_PUPDR14 | GPIO_PUPDR_PUPDR15)
) |
GPIO_PUPDR_PUPDR14_0 | GPIO_PUPDR_PUPDR15_0;
pin_set(LED0_port, LED0_pin); // clear LEDs
pin_set(LED1_port, LED1_pin);
}

52
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/*
* geany_encoding=koi8-r
* hardware.h
*
* Copyright 2018 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
#pragma once
#ifndef __HARDWARE_H__
#define __HARDWARE_H__
#include "stm32f0.h"
#define CONCAT(a,b) a ## b
#define STR_HELPER(s) #s
#define STR(s) STR_HELPER(s)
#define FORMUSART(X) CONCAT(USART, X)
#define USARTX FORMUSART(USARTNUM)
// LEDS: 0 - PC13, 1 - PC14
// LED0
#define LED0_port GPIOC
#define LED0_pin (1<<13)
// LED1
#define LED1_port GPIOC
#define LED1_pin (1<<14)
#define LED_blink(x) pin_toggle(x ## _port, x ## _pin)
// CAN address - PB14(0), PB15(1), PA8(2)
#define READ_CAN_INV_ADDR() (((GPIOA->IDR & (1<<8))>>6)|((GPIOB->IDR & (3<<14))>>14))
void gpio_setup(void);
#endif // __HARDWARE_H__

12
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/* Linker script for STM32F042x6, 32K flash, 6K RAM. */
/* Define memory regions. */
MEMORY
{
rom (rx) : ORIGIN = 0x08000000, LENGTH = 32K
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 6K
}
/* Include the common ld script. */
INCLUDE stm32f0.ld

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/*
* main.c
*
* Copyright 2017 Edward V. Emelianoff <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include "hardware.h"
#include "usart.h"
#include "can.h"
volatile uint32_t Tms = 0;
/* Called when systick fires */
void sys_tick_handler(void){
++Tms;
}
void iwdg_setup(){
/* Enable the peripheral clock RTC */
/* (1) Enable the LSI (40kHz) */
/* (2) Wait while it is not ready */
RCC->CSR |= RCC_CSR_LSION; /* (1) */
while((RCC->CSR & RCC_CSR_LSIRDY) != RCC_CSR_LSIRDY); /* (2) */
/* Configure IWDG */
/* (1) Activate IWDG (not needed if done in option bytes) */
/* (2) Enable write access to IWDG registers */
/* (3) Set prescaler by 64 (1.6ms for each tick) */
/* (4) Set reload value to have a rollover each 2s */
/* (5) Check if flags are reset */
/* (6) Refresh counter */
IWDG->KR = IWDG_START; /* (1) */
IWDG->KR = IWDG_WRITE_ACCESS; /* (2) */
IWDG->PR = IWDG_PR_PR_1; /* (3) */
IWDG->RLR = 1250; /* (4) */
while(IWDG->SR); /* (5) */
IWDG->KR = IWDG_REFRESH; /* (6) */
}
int main(void){
uint32_t lastT = 0;
int L;
char *txt;
sysreset();
SysTick_Config(6000, 1);
gpio_setup();
usart_setup();
iwdg_setup();
readCANaddr();
CAN_setup();
SEND("Greetings! My address is ");
printu(getCANaddr());
newline();
if(RCC->CSR & RCC_CSR_IWDGRSTF){ // watchdog reset occured
SEND("WDGRESET=1\n");
}
if(RCC->CSR & RCC_CSR_SFTRSTF){ // software reset occured
SEND("SOFTRESET=1\n");
}
RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
while (1){
IWDG->KR = IWDG_REFRESH; // refresh watchdog
if(lastT > Tms || Tms - lastT > 499){
LED_blink(LED0);
lastT = Tms;
}
can_proc();
if(usartrx()){ // usart1 received data, store in in buffer
L = usart_getline(&txt);
char _1st = txt[0];
if(L == 2 && txt[1] == '\n'){
L = 0;
switch(_1st){
case 'C':
can_send_dummy();
break;
case 'G':
SEND("Can address: ");
printu(getCANaddr());
newline();
break;
case 'R':
NVIC_SystemReset();
break;
case 'W':
SEND("Wait for reboot\n");
while(1){nop();};
break;
default: // help
SEND(
"'C' - send dummy byte over CAN\n"
"'G' - get CAN address\n"
"'R' - software reset\n"
"'W' - test watchdog\n"
);
break;
}
}
}
if(L){ // text waits for sending
while(LINE_BUSY == usart_send(txt, L));
L = 0;
}
}
return 0;
}

238
F0-nolib/canbus/src/usart.c Normal file
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@ -0,0 +1,238 @@
/*us
* usart.c
*
* Copyright 2017 Edward V. Emelianoff <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include "stm32f0.h"
#include "hardware.h"
#include "usart.h"
#include <string.h>
extern volatile uint32_t Tms;
static int datalen[2] = {0,0}; // received data line length (including '\n')
volatile int linerdy = 0, // received data ready
dlen = 0, // length of data (including '\n') in current buffer
bufovr = 0, // input buffer overfull
txrdy = 1 // transmission done
;
int rbufno = 0; // current rbuf number
static char rbuf[UARTBUFSZ][2], tbuf[UARTBUFSZ]; // receive & transmit buffers
static char *recvdata = NULL;
/**
* return length of received data (without trailing zero
*/
int usart_getline(char **line){
if(bufovr){
bufovr = 0;
linerdy = 0;
return 0;
}
*line = recvdata;
linerdy = 0;
return dlen;
}
TXstatus usart_send(const char *str, int len){
if(!txrdy) return LINE_BUSY;
if(len > UARTBUFSZ) return STR_TOO_LONG;
txrdy = 0;
memcpy(tbuf, str, len);
#if USARTNUM == 2
DMA1_Channel4->CCR &= ~DMA_CCR_EN;
DMA1_Channel4->CNDTR = len;
DMA1_Channel4->CCR |= DMA_CCR_EN; // start transmission
#elif USARTNUM == 1
DMA1_Channel2->CCR &= ~DMA_CCR_EN;
DMA1_Channel2->CNDTR = len;
DMA1_Channel2->CCR |= DMA_CCR_EN;
#else
#error "Not implemented"
#endif
return ALL_OK;
}
TXstatus usart_send_blocking(const char *str, int len){
if(!txrdy) return LINE_BUSY;
int i;
bufovr = 0;
for(i = 0; i < len; ++i){
USARTX -> TDR = *str++;
while(!(USARTX->ISR & USART_ISR_TXE));
}
return ALL_OK;
}
void usart_putchar(const char ch){
while(!txrdy);
USARTX -> TDR = ch;
while(!(USARTX->ISR & USART_ISR_TXE));
}
void newline(){
while(!txrdy);
USARTX -> TDR = '\n';
while(!(USARTX->ISR & USART_ISR_TXE));
}
void usart_setup(){
// Nucleo's USART2 connected to VCP proxy of st-link
#if USARTNUM == 2
// setup pins: PA2 (Tx - AF1), PA15 (Rx - AF1)
// AF mode (AF1)
GPIOA->MODER = (GPIOA->MODER & ~(GPIO_MODER_MODER2|GPIO_MODER_MODER15))\
| (GPIO_MODER_MODER2_AF | GPIO_MODER_MODER15_AF);
GPIOA->AFR[0] = (GPIOA->AFR[0] &~GPIO_AFRH_AFRH2) | 1 << (2 * 4); // PA2
GPIOA->AFR[1] = (GPIOA->AFR[1] &~GPIO_AFRH_AFRH7) | 1 << (7 * 4); // PA15
// DMA: Tx - Ch4
DMA1_Channel4->CPAR = (uint32_t) &USART2->TDR; // periph
DMA1_Channel4->CMAR = (uint32_t) tbuf; // mem
DMA1_Channel4->CCR |= DMA_CCR_MINC | DMA_CCR_DIR | DMA_CCR_TCIE; // 8bit, mem++, mem->per, transcompl irq
// Tx CNDTR set @ each transmission due to data size
NVIC_SetPriority(DMA1_Channel4_5_IRQn, 3);
NVIC_EnableIRQ(DMA1_Channel4_5_IRQn);
NVIC_SetPriority(USART2_IRQn, 0);
// setup usart2
RCC->APB1ENR |= RCC_APB1ENR_USART2EN; // clock
// oversampling by16, 115200bps (fck=48mHz)
//USART2_BRR = 0x1a1; // 48000000 / 115200
USART2->BRR = 480000 / 1152;
USART2->CR3 = USART_CR3_DMAT; // enable DMA Tx
USART2->CR1 = USART_CR1_TE | USART_CR1_RE | USART_CR1_UE; // 1start,8data,nstop; enable Rx,Tx,USART
while(!(USART2->ISR & USART_ISR_TC)); // polling idle frame Transmission
USART2->ICR |= USART_ICR_TCCF; // clear TC flag
USART2->CR1 |= USART_CR1_RXNEIE;
NVIC_EnableIRQ(USART2_IRQn);
// USART1 of main board
#elif USARTNUM == 1
// PA9 - Tx, PA10 - Rx (AF1)
GPIOA->MODER = (GPIOA->MODER & ~(GPIO_MODER_MODER9 | GPIO_MODER_MODER10))\
| (GPIO_MODER_MODER9_AF | GPIO_MODER_MODER10_AF);
GPIOA->AFR[1] = (GPIOA->AFR[1] & ~(GPIO_AFRH_AFRH1 | GPIO_AFRH_AFRH2)) |
1 << (1 * 4) | 1 << (2 * 4); // PA9, PA10
// USART1 Tx DMA - Channel2 (default value in SYSCFG_CFGR1)
DMA1_Channel2->CPAR = (uint32_t) &USART1->TDR; // periph
DMA1_Channel2->CMAR = (uint32_t) tbuf; // mem
DMA1_Channel2->CCR |= DMA_CCR_MINC | DMA_CCR_DIR | DMA_CCR_TCIE; // 8bit, mem++, mem->per, transcompl irq
// Tx CNDTR set @ each transmission due to data size
NVIC_SetPriority(DMA1_Channel2_3_IRQn, 3);
NVIC_EnableIRQ(DMA1_Channel2_3_IRQn);
NVIC_SetPriority(USART1_IRQn, 0);
// setup usart1
RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
USART1->BRR = 480000 / 1152;
USART1->CR3 = USART_CR3_DMAT; // enable DMA Tx
USART1->CR1 = USART_CR1_TE | USART_CR1_RE | USART_CR1_UE; // 1start,8data,nstop; enable Rx,Tx,USART
while(!(USART1->ISR & USART_ISR_TC)); // polling idle frame Transmission
USART1->ICR |= USART_ICR_TCCF; // clear TC flag
USART1->CR1 |= USART_CR1_RXNEIE;
NVIC_EnableIRQ(USART1_IRQn);
#else
#error "Not implemented"
#endif
}
#if USARTNUM == 2
void usart2_isr(){
// USART1
#elif USARTNUM == 1
void usart1_isr(){
#else
#error "Not implemented"
#endif
#ifdef CHECK_TMOUT
static uint32_t tmout = 0;
#endif
if(USARTX->ISR & USART_ISR_RXNE){ // RX not emty - receive next char
#ifdef CHECK_TMOUT
if(tmout && Tms >= tmout){ // set overflow flag
bufovr = 1;
datalen[rbufno] = 0;
}
tmout = Tms + TIMEOUT_MS;
if(!tmout) tmout = 1; // prevent 0
#endif
// read RDR clears flag
uint8_t rb = USARTX->RDR;
if(datalen[rbufno] < UARTBUFSZ){ // put next char into buf
rbuf[rbufno][datalen[rbufno]++] = rb;
if(rb == '\n'){ // got newline - line ready
linerdy = 1;
dlen = datalen[rbufno];
recvdata = rbuf[rbufno];
// prepare other buffer
rbufno = !rbufno;
datalen[rbufno] = 0;
#ifdef CHECK_TMOUT
// clear timeout at line end
tmout = 0;
#endif
}
}else{ // buffer overrun
bufovr = 1;
datalen[rbufno] = 0;
#ifdef CHECK_TMOUT
tmout = 0;
#endif
}
}
}
// print 32bit unsigned int
void printu(uint32_t val){
char bufa[11], bufb[10];
int l = 0, bpos = 0;
if(!val){
bufa[0] = '0';
l = 1;
}else{
while(val){
bufb[l++] = val % 10 + '0';
val /= 10;
}
int i;
bpos += l;
for(i = 0; i < l; ++i){
bufa[--bpos] = bufb[i];
}
}
while(LINE_BUSY == usart_send_blocking(bufa, l+bpos));
}
#if USARTNUM == 2
void dma1_channel4_5_isr(){
if(DMA1->ISR & DMA_ISR_TCIF4){ // Tx
DMA1->IFCR |= DMA_IFCR_CTCIF4; // clear TC flag
txrdy = 1;
}
}
// USART1
#elif USARTNUM == 1
void dma1_channel2_3_isr(){
if(DMA1->ISR & DMA_ISR_TCIF2){ // Tx
DMA1->IFCR |= DMA_IFCR_CTCIF2; // clear TC flag
txrdy = 1;
}
}
#else
#error "Not implemented"
#endif

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@ -0,0 +1,60 @@
/*
* usart.h
*
* Copyright 2017 Edward V. Emelianoff <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#pragma once
#ifndef __USART_H__
#define __USART_H__
// input and output buffers size
#define UARTBUFSZ (64)
// timeout between data bytes
#ifndef TIMEOUT_MS
#define TIMEOUT_MS (1500)
#endif
// macro for static strings
#define SEND(str) do{}while(LINE_BUSY == usart_send_blocking(str, sizeof(str)-1))
#ifdef EBUG
#define MSG(str) do{SEND(__FILE__ " (L" STR(__LINE__) "): " str);}while(0)
#else
#define MSG(str)
#endif
typedef enum{
ALL_OK,
LINE_BUSY,
STR_TOO_LONG
} TXstatus;
#define usartrx() (linerdy)
#define usartovr() (bufovr)
extern volatile int linerdy, bufovr, txrdy;
void usart_setup();
int usart_getline(char **line);
TXstatus usart_send(const char *str, int len);
TXstatus usart_send_blocking(const char *str, int len);
void newline();
void usart_putchar(const char ch);
void printu(uint32_t val);
#endif // __USART_H__

10
F0-nolib/inc/F0/stm32f0.h
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@ -200,8 +200,8 @@ TRUE_INLINE void StartHSI48(){
/************************* ADC *************************/ /************************* ADC *************************/
/* inner termometer calibration values /* inner termometer calibration values
* Temp = (Vsense - V30)/Avg_Slope + 30 * Temp = (V30 - Vsense)/Avg_Slope + 30
* Avg_Slope = (V110 - V30) / (110 - 30) * Avg_Slope = (V30 - V110) / (110 - 30)
*/ */
#define TEMP110_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FFFF7C2)) #define TEMP110_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FFFF7C2))
#define TEMP30_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FFFF7B8)) #define TEMP30_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FFFF7B8))
@ -216,6 +216,12 @@ TRUE_INLINE void StartHSI48(){
// set address/character match value // set address/character match value
#define USART_CR2_ADD_VAL(x) ((x) << USART_CR2_ADD_SHIFT) #define USART_CR2_ADD_VAL(x) ((x) << USART_CR2_ADD_SHIFT)
/************************* IWDG *************************/
#define IWDG_REFRESH (uint32_t)(0x0000AAAA)
#define IWDG_WRITE_ACCESS (uint32_t)(0x00005555)
#define IWDG_START (uint32_t)(0x0000CCCC)
//#define do{}while(0) //#define do{}while(0)

3
README
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@ -8,3 +8,6 @@ F1 - for STM32F103
WARNING!!! WARNING!!!
arm-none-eabi-gcc from gentoo have a bug with division on F0. arm-none-eabi-gcc from gentoo have a bug with division on F0.
Use toolchain from https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads instead! Use toolchain from https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads instead!
CMSIS-headers:
https://github.com/modm-io/cmsis-header-stm32