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This commit is contained in:
Ben Kyd
2023-06-15 20:07:12 +01:00
parent 8423640e35
commit 38010a5fa6
8 changed files with 84512 additions and 84252 deletions
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BIN
.cache/clangd/index/main.c.FD33880BB41924A3.idx
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20
CMakeLists.txt
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@@ -2,18 +2,22 @@ cmake_minimum_required(VERSION 3.13)
set(CMAKE_C_STANDARD 11)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# Pull in Raspberry Pi Pico SDK (must be before project)
set(PICO_SDK_FETCH_FROM_GIT on)
include(pico_sdk_import.cmake)
project(pico_vga C CXX ASM)
include_directories(${CMAKE_SOURCE_DIR})
project(pico_vga C CXX ASM)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
pico_sdk_init()
# pico_generate_pio_header(pico_vga ${CMAKE_CURRENT_LIST_DIR}/video.pio)
add_executable(pico_vga
src/main.c
)
@@ -21,9 +25,11 @@ add_executable(pico_vga
# Add the standard library to the build
target_link_libraries(pico_vga
pico_stdlib
# hardware_pio
# hardware_dma
# hardware_irq
hardware_pio
hardware_dma
hardware_irq
)
pico_generate_pio_header(pico_vga ${CMAKE_CURRENT_LIST_DIR}/src/vga.pio)
pico_add_extra_outputs(pico_vga)

168450
designs/picovga/fp-info-cache
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15
designs/picovga/picovga.kicad_prl
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@@ -2,10 +2,13 @@
"board": {
"active_layer": 0,
"active_layer_preset": "",
"auto_track_width": true,
"hidden_netclasses": [],
"hidden_nets": [],
"high_contrast_mode": 0,
"net_color_mode": 1,
"opacity": {
"images": 0.6,
"pads": 0.8500000238418579,
"tracks": 1.0,
"vias": 1.0,
@@ -48,15 +51,13 @@
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
37,
38
],
@@ -65,7 +66,7 @@
},
"meta": {
"filename": "picovga.kicad_prl",
"version": 2
"version": 3
},
"project": {
"files": []

186
designs/picovga/picovga.kicad_pro
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@@ -1,5 +1,6 @@
{
"board": {
"3dviewports": [],
"design_settings": {
"defaults": {
"board_outline_line_width": 0.09999999999999999,
@@ -51,25 +52,34 @@
"diff_pair_dimensions": [],
"drc_exclusions": [],
"meta": {
"version": 1
"version": 2
},
"rule_severities": {
"annular_width": "error",
"clearance": "error",
"connection_width": "warning",
"copper_edge_clearance": "error",
"copper_sliver": "warning",
"courtyards_overlap": "error",
"diff_pair_gap_out_of_range": "error",
"diff_pair_uncoupled_length_too_long": "error",
"drill_out_of_range": "error",
"drill_too_small": "error",
"duplicate_footprints": "warning",
"extra_footprint": "warning",
"footprint": "error",
"footprint_type_mismatch": "ignore",
"hole_clearance": "error",
"hole_near_hole": "error",
"invalid_outline": "error",
"isolated_copper": "warning",
"item_on_disabled_layer": "error",
"items_not_allowed": "error",
"length_out_of_range": "error",
"lib_footprint_issues": "warning",
"lib_footprint_mismatch": "warning",
"malformed_courtyard": "error",
"microvia_drill_out_of_range": "error",
"microvia_drill_too_small": "error",
"missing_courtyard": "ignore",
"missing_footprint": "warning",
@@ -78,9 +88,15 @@
"padstack": "error",
"pth_inside_courtyard": "ignore",
"shorting_items": "error",
"silk_edge_clearance": "warning",
"silk_over_copper": "error",
"silk_overlap": "error",
"skew_out_of_range": "error",
"solder_mask_bridge": "error",
"starved_thermal": "error",
"text_height": "warning",
"text_thickness": "warning",
"through_hole_pad_without_hole": "error",
"too_many_vias": "error",
"track_dangling": "warning",
"track_width": "error",
@@ -96,27 +112,77 @@
"allow_microvias": false,
"max_error": 0.005,
"min_clearance": 0.0,
"min_connection": 0.0,
"min_copper_edge_clearance": 0.0,
"min_hole_clearance": 0.0,
"min_hole_to_hole": 0.25,
"min_microvia_diameter": 0.19999999999999998,
"min_microvia_drill": 0.09999999999999999,
"min_resolved_spokes": 2,
"min_silk_clearance": 0.0,
"min_text_height": 0.7999999999999999,
"min_text_thickness": 0.08,
"min_through_hole_diameter": 0.3,
"min_track_width": 0.19999999999999998,
"min_via_annular_width": 0.049999999999999996,
"min_via_diameter": 0.39999999999999997,
"solder_mask_clearance": 0.0,
"solder_mask_min_width": 0.0,
"solder_mask_to_copper_clearance": 0.0,
"solder_paste_clearance": 0.0,
"solder_paste_margin_ratio": 0.0
"solder_paste_margin_ratio": 0.0,
"use_height_for_length_calcs": true
},
"teardrop_options": [
{
"td_onpadsmd": true,
"td_onroundshapesonly": false,
"td_ontrackend": false,
"td_onviapad": true
}
],
"teardrop_parameters": [
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_round_shape",
"td_width_to_size_filter_ratio": 0.9
},
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_rect_shape",
"td_width_to_size_filter_ratio": 0.9
},
{
"td_allow_use_two_tracks": true,
"td_curve_segcount": 0,
"td_height_ratio": 1.0,
"td_length_ratio": 0.5,
"td_maxheight": 2.0,
"td_maxlen": 1.0,
"td_on_pad_in_zone": false,
"td_target_name": "td_track_end",
"td_width_to_size_filter_ratio": 0.9
}
],
"track_widths": [],
"via_dimensions": [],
"zones_allow_external_fillets": false,
"zones_use_no_outline": true
},
"layer_presets": []
"layer_presets": [],
"viewports": []
},
"boards": [],
"cvpcb": {
@@ -134,6 +200,7 @@
0,
0,
0,
0,
1,
0,
0,
@@ -147,6 +214,7 @@
0,
1,
0,
0,
1,
0,
2,
@@ -160,6 +228,7 @@
0,
0,
0,
0,
1,
0,
1,
@@ -173,6 +242,7 @@
0,
0,
0,
0,
1,
1,
2,
@@ -186,6 +256,7 @@
0,
0,
0,
0,
1,
0,
0,
@@ -193,12 +264,27 @@
0,
2
],
[
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
2
],
[
1,
1,
1,
1,
1,
0,
1,
1,
1,
@@ -212,6 +298,7 @@
0,
1,
0,
0,
1,
0,
0,
@@ -225,6 +312,7 @@
1,
2,
0,
0,
1,
0,
2,
@@ -238,6 +326,7 @@
0,
1,
0,
0,
1,
0,
2,
@@ -251,6 +340,7 @@
1,
1,
0,
0,
1,
0,
2,
@@ -269,21 +359,31 @@
2,
2,
2,
2,
2
]
],
"rule_severities": {
"bus_definition_conflict": "error",
"bus_entry_needed": "error",
"bus_label_syntax": "error",
"bus_to_bus_conflict": "error",
"bus_to_net_conflict": "error",
"conflicting_netclasses": "error",
"different_unit_footprint": "error",
"different_unit_net": "error",
"duplicate_reference": "error",
"duplicate_sheet_names": "error",
"endpoint_off_grid": "warning",
"extra_units": "error",
"global_label_dangling": "warning",
"hier_label_mismatch": "error",
"label_dangling": "error",
"lib_symbol_issues": "warning",
"missing_bidi_pin": "warning",
"missing_input_pin": "warning",
"missing_power_pin": "error",
"missing_unit": "warning",
"multiple_net_names": "warning",
"net_not_bus_member": "warning",
"no_connect_connected": "warning",
@@ -293,6 +393,9 @@
"pin_to_pin": "warning",
"power_pin_not_driven": "error",
"similar_labels": "warning",
"simulation_model_issue": "ignore",
"unannotated": "error",
"unit_value_mismatch": "error",
"unresolved_variable": "error",
"wire_dangling": "error"
}
@@ -308,7 +411,7 @@
"net_settings": {
"classes": [
{
"bus_width": 6.0,
"bus_width": 6,
"clearance": 0.2,
"diff_pair_gap": 0.25,
"diff_pair_via_gap": 0.25,
@@ -322,13 +425,15 @@
"track_width": 0.25,
"via_diameter": 0.8,
"via_drill": 0.4,
"wire_width": 6.0
"wire_width": 6
}
],
"meta": {
"version": 0
"version": 3
},
"net_colors": null
"net_colors": null,
"netclass_assignments": null,
"netclass_patterns": []
},
"pcbnew": {
"last_paths": {
@@ -342,31 +447,96 @@
"page_layout_descr_file": ""
},
"schematic": {
"annotate_start_num": 0,
"bom_fmt_presets": [],
"bom_fmt_settings": {
"field_delimiter": ",",
"keep_line_breaks": false,
"keep_tabs": false,
"name": "CSV",
"ref_delimiter": ",",
"ref_range_delimiter": "",
"string_delimiter": "\""
},
"bom_presets": [],
"bom_settings": {
"exclude_dnp": false,
"fields_ordered": [
{
"group_by": false,
"label": "Reference",
"name": "Reference",
"show": true
},
{
"group_by": true,
"label": "Value",
"name": "Value",
"show": true
},
{
"group_by": false,
"label": "Datasheet",
"name": "Datasheet",
"show": true
},
{
"group_by": false,
"label": "Footprint",
"name": "Footprint",
"show": true
},
{
"group_by": false,
"label": "Qty",
"name": "Quantity",
"show": true
}
],
"filter_string": "",
"group_symbols": true,
"name": "Grouped By Value",
"sort_asc": true,
"sort_field": "Reference"
},
"drawing": {
"dashed_lines_dash_length_ratio": 12.0,
"dashed_lines_gap_length_ratio": 3.0,
"default_bus_thickness": 12.0,
"default_junction_size": 36.0,
"default_line_thickness": 6.0,
"default_text_size": 50.0,
"default_wire_thickness": 6.0,
"field_names": [],
"intersheets_ref_own_page": false,
"intersheets_ref_prefix": "",
"intersheets_ref_short": false,
"intersheets_ref_show": false,
"intersheets_ref_suffix": "",
"junction_size_choice": 3,
"label_size_ratio": 0.3,
"operating_point_overlay_i_precision": 3,
"operating_point_overlay_i_range": "~A",
"operating_point_overlay_v_precision": 3,
"operating_point_overlay_v_range": "~V",
"pin_symbol_size": 25.0,
"text_offset_ratio": 0.3
},
"legacy_lib_dir": "",
"legacy_lib_list": [],
"meta": {
"version": 0
"version": 1
},
"net_format_name": "",
"page_layout_descr_file": "",
"plot_directory": "",
"spice_adjust_passive_values": false,
"spice_current_sheet_as_root": false,
"spice_external_command": "spice \"%I\"",
"spice_model_current_sheet_as_root": true,
"spice_save_all_currents": false,
"spice_save_all_dissipations": false,
"spice_save_all_voltages": false,
"subpart_first_id": 65,
"subpart_id_separator": 0
},

6
makefile
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@@ -1,12 +1,14 @@
.ONESHELL:
all: compile flash
all: compile mount flash
compile:
cd build && cmake .. -DCMAKE_EXPORT_COMPILE_COMMANDS=on && make
flash: compile
mount: compile
sudo mount -L RPI-RP2 /mnt
flash: mount
sudo cp build/pico_vga.uf2 /mnt
echo "Copied pico_vga.uf2 to pico"

83
src/main.c
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@@ -9,9 +9,86 @@
#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/clocks.h"
#include "hardware/pio.h"
#include "hardware/dma.h"
#include "hardware/irq.h"
#include "vga.pio.h"
typedef struct video_timing {
uint32_t clock_freq;
uint16_t h_active;
uint16_t v_active;
uint16_t h_front_porch;
uint16_t h_pulse;
uint16_t h_total;
uint8_t h_sync_polarity;
uint16_t v_front_porch;
uint16_t v_pulse;
uint16_t v_total;
uint8_t v_sync_polarity;
uint8_t enable_clock;
uint8_t clock_polarity;
uint8_t enable_den;
} video_timing_t;
const video_timing_t vga_timing_800x600_60 =
{
.clock_freq = 38400000,
.h_active = 800,
.v_active = 600,
.h_front_porch = 4 * 8,
.h_pulse = 10 * 8,
.h_total = 128 * 8,
.h_sync_polarity = 0,
.v_front_porch = 1,
.v_pulse = 3,
.v_total = 625,
.v_sync_polarity = 0,
.enable_clock = 0,
.clock_polarity = 0,
.enable_den = 0
};
static inline void vga_program_init(PIO pio, uint sm, uint offset, uint pin) {
pio_gpio_init(pio, pin);
pio_gpio_init(pio, pin+1);
pio_sm_set_consecutive_pindirs(pio, sm, pin, 2, true);
pio_sm_config c = vga_program_get_default_config(offset);
sm_config_set_out_pins(&c, pin, 2);
sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_TX);
sm_config_set_out_shift(&c, false, true, 2);
pio_sm_init(pio, sm, offset, &c);
pio_sm_set_enabled(pio, sm, true);
}
int main() {
setup_default_uart();
printf("Hello, world!\n");
return 0;
PIO pio = pio0;
uint offset = pio_add_program(pio, &vga_program);
uint sm = pio_claim_unused_sm(pio, true);
vga_program_init(pio, sm, offset, 12);
while (true) {
pio_sm_put_blocking(pio, sm, 0b01);
sleep_ms(20);
pio_sm_put_blocking(pio, sm, 0b10);
sleep_ms(20);
}
}

4
src/vga.pio Normal file
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@@ -0,0 +1,4 @@
.program vga
loop:
out pins, 2
jmp loop