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Add ICE40 FPGA support

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This commit is contained in:
Renze Nicolai 2022-01-01 07:13:50 +01:00
parent 80a7369f89
commit 159e1b3a01
6 changed files with 8780 additions and 27 deletions
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4
.gitmodules vendored
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@ -18,3 +18,7 @@
path = factory_test/components/spi-ili9341
url = git@github.com:Nicolai-Electronics/esp32-component-spi-ili9341.git
branch = master
[submodule "factory_test/components/spi-ice40"]
path = factory_test/components/spi-ice40
url = git@github.com:Nicolai-Electronics/esp32-component-spi-ice40.git
branch = master

1
factory_test/components/spi-ice40 Submodule

@ -0,0 +1 @@
Subproject commit 3c7ce5ba461f770d330c5a7a8a129b9f13568ed5

8683
factory_test/main/bitstream.h Normal file
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File diff suppressed because it is too large Load diff

80
factory_test/main/hardware.c
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@ -10,6 +10,11 @@ static const char *TAG = "hardware";
PCA9555 dev_pca9555 = {0};
BNO055 dev_bno055 = {0};
ILI9341 dev_ili9341 = {0};
ICE40 dev_ice40 = {0};
// Wrapper functions for linking the ICE40 component to the PCA9555 component
esp_err_t ice40_get_done_wrapper(bool* done) { return pca9555_get_gpio_value(&dev_pca9555, PCA9555_PIN_FPGA_CDONE, done); }
esp_err_t ice40_set_reset_wrapper(bool reset) { return pca9555_set_gpio_value(&dev_pca9555, PCA9555_PIN_FPGA_RESET, reset); }
esp_err_t hardware_init() {
esp_err_t res;
@ -20,6 +25,20 @@ esp_err_t hardware_init() {
ESP_LOGE(TAG, "Initializing ISR service failed");
return res;
}
// System I2C bus
res = i2c_init(I2C_BUS_SYS, GPIO_I2C_SYS_SDA, GPIO_I2C_SYS_SCL, I2C_SPEED_SYS, false, false);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing system I2C bus failed");
return res;
}
// User I2C bus
res = i2c_init(I2C_BUS_EXT, GPIO_I2C_EXT_SDA, GPIO_I2C_EXT_SCL, I2C_SPEED_EXT, false, false);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing user I2C bus failed");
return res;
}
// SPI bus
spi_bus_config_t busConfiguration = {0};
@ -35,6 +54,42 @@ esp_err_t hardware_init() {
return res;
}
// PCA9555 IO expander on system I2C bus
res = pca9555_init(&dev_pca9555, I2C_BUS_SYS, PCA9555_ADDR, GPIO_INT_PCA9555);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing PCA9555 failed");
return res;
}
res = pca9555_set_gpio_direction(&dev_pca9555, PCA9555_PIN_FPGA_RESET, true);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Setting the FPGA reset pin on the PCA9555 to output failed");
return res;
}
res = pca9555_set_gpio_value(&dev_pca9555, PCA9555_PIN_FPGA_RESET, false);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Setting the FPGA reset pin on the PCA9555 to low failed");
return res;
}
// FPGA
dev_ice40.spi_bus = SPI_BUS;
dev_ice40.pin_cs = GPIO_SPI_CS_FPGA;
dev_ice40.pin_done = -1;
dev_ice40.pin_reset = -1;
dev_ice40.pin_int = GPIO_INT_FPGA;
dev_ice40.spi_speed = 60000000; // 60MHz
dev_ice40.spi_max_transfer_size = SPI_MAX_TRANSFER_SIZE;
dev_ice40.get_done = ice40_get_done_wrapper;
dev_ice40.set_reset = ice40_set_reset_wrapper;
res = ice40_init(&dev_ice40);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing FPGA failed");
return res;
}
// LCD display
dev_ili9341.spi_bus = SPI_BUS;
dev_ili9341.pin_cs = GPIO_SPI_CS_LCD;
@ -58,20 +113,6 @@ esp_err_t hardware_init() {
ESP_LOGE(TAG, "Failed to write logo to LCD");
return res;
}
// System I2C bus
res = i2c_init(I2C_BUS_SYS, GPIO_I2C_SYS_SDA, GPIO_I2C_SYS_SCL, I2C_SPEED_SYS, false, false);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing system I2C bus failed");
return res;
}
// PCA9555 IO expander on system I2C bus
res = pca9555_init(&dev_pca9555, I2C_BUS_SYS, PCA9555_ADDR, GPIO_INT_PCA9555);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing PCA9555 failed");
return res;
}
// BNO055 sensor on system I2C bus
@ -81,13 +122,6 @@ esp_err_t hardware_init() {
return res;
}
// User I2C bus
res = i2c_init(I2C_BUS_EXT, GPIO_I2C_EXT_SDA, GPIO_I2C_EXT_SCL, I2C_SPEED_EXT, false, false);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Initializing user I2C bus failed");
return res;
}
return res;
}
@ -102,3 +136,7 @@ BNO055* get_bno055() {
ILI9341* get_ili9341() {
return &dev_ili9341;
}
ICE40* get_ice40() {
return &dev_ice40;
}

6
factory_test/main/hardware.h
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@ -6,11 +6,13 @@
#include "pca9555.h"
#include "bno055.h"
#include "ili9341.h"
#include "ice40.h"
esp_err_t hardware_init();
PCA9555* get_pca9555();
BNO055* get_bno055();
ILI9341* get_ili9341();
ICE40* get_ice40();
// Interrupts
#define GPIO_INT_STM32 0
@ -33,7 +35,7 @@ ILI9341* get_ili9341();
#define GPIO_I2C_SYS_SCL 21
#define GPIO_I2C_SYS_SDA 22
#define I2C_BUS_SYS 0
#define I2C_SPEED_SYS 20000
#define I2C_SPEED_SYS 20000 // 20kHz
// PCA9555 IO expander
#define PCA9555_ADDR 0x26
@ -60,7 +62,7 @@ ILI9341* get_ili9341();
#define GPIO_I2C_EXT_SCL 25
#define GPIO_I2C_EXT_SDA 26
#define I2C_BUS_EXT 1
#define I2C_SPEED_EXT 40000
#define I2C_SPEED_EXT 20000 // 20 kHz
// SPI bus
#define GPIO_SPI_CLK 18

33
factory_test/main/main.c
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@ -8,21 +8,42 @@
#include <esp_err.h>
#include <esp_log.h>
#include "hardware.h"
#include "bitstream.h"
static const char *TAG = "main";
bool calibrate = true;
bool display_bno_value = true;
ILI9341* ili9341 = NULL;
ICE40* ice40 = NULL;
uint8_t* framebuffer = NULL;
void button_handler(uint8_t pin, bool value) {
switch(pin) {
case PCA9555_PIN_BTN_START:
case PCA9555_PIN_BTN_START: {
printf("Start button %s\n", value ? "pressed" : "released");
if (value) {
esp_err_t res = ice40_load_bitstream(ice40, bitstream, bitstream_length);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Failed to program the FPGA (%d)", res);
} else {
printf("FPGA enabled\n");
}
}
break;
case PCA9555_PIN_BTN_SELECT:
}
case PCA9555_PIN_BTN_SELECT: {
printf("Select button %s\n", value ? "pressed" : "released");
if (value) {
esp_err_t res = ice40_disable(ice40);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Failed to disable the FPGA (%d)", res);
} else {
printf("FPGA disabled\n");
}
}
break;
}
case PCA9555_PIN_BTN_MENU:
printf("Menu button %s\n", value ? "pressed" : "released");
break;
@ -46,9 +67,10 @@ void button_handler(uint8_t pin, bool value) {
break;
case PCA9555_PIN_BTN_BACK:
printf("Back button %s\n", value ? "pressed" : "released");
display_bno_value = value;
break;
case PCA9555_PIN_BTN_ACCEPT:
//printf("Accept button %s\n", value ? "pressed" : "released");
printf("Accept button %s\n", value ? "pressed" : "released");
if (value) calibrate = true;
break;
default:
@ -121,6 +143,7 @@ void app_main(void) {
}
ili9341 = get_ili9341();
ice40 = get_ice40();
framebuffer = heap_caps_malloc(ILI9341_BUFFER_SIZE, MALLOC_CAP_8BIT);
if (framebuffer == NULL) {
@ -224,7 +247,9 @@ void app_main(void) {
printf("Linear acceleration (m/s²) x = %5.8f y = %5.8f z = %5.8f\n", linear_acceleration.x, linear_acceleration.y, linear_acceleration.z);
printf("Gravity (m/s²) x = %5.8f y = %5.8f z = %5.8f\n", gravity.x, gravity.y, gravity.z);*/
printf("Magnetic (uT) x: %5.4f y: %5.4f z: %5.4f Rotation (deg): x: %5.4f y: %5.4f z: %5.4f \n", magnetism.x, magnetism.y, magnetism.z, rotation.x, rotation.y, rotation.z);
if (display_bno_value) {
printf("Magnetic (uT) x: %5.4f y: %5.4f z: %5.4f Rotation (deg): x: %5.4f y: %5.4f z: %5.4f \n", magnetism.x, magnetism.y, magnetism.z, rotation.x, rotation.y, rotation.z);
}
}
free(framebuffer);