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Commit 2771f27

Browse files
fabik111pennam
authored andcommitted
add esp32 chip manager on ESPHome for portenta C33
1 parent 4ebe747 commit 2771f27

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3 files changed

+119
-31
lines changed

3 files changed

+119
-31
lines changed
Lines changed: 50 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,50 @@
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/* ########################################################################## */
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/* - File: EspChipManager.h
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- Copyright (c): 2025 Arduino srl.
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- Author: Fabio Massimo Centonze (f.centonze@arduino.cc)
5+
6+
This library is free software; you can redistribute it and/or
7+
modify it under the terms of the GNU Lesser General Public
8+
License as published by the Free Software Foundation; either
9+
version 2.1 of the License, or (at your option) any later version.
10+
11+
This library is distributed in the hope that it will be useful,
12+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14+
Lesser General Public License for more details.
15+
16+
You should have received a copy of the GNU Lesser General Public
17+
License along with this library; if not, write to the Free Software
18+
Foundation, Inc.,51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/* ########################################################################## */
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21+
#include "EspChipManager.h"
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23+
#define ESP_RESET BSP_IO_PORT_08_PIN_04
24+
#define ESP_DOWNLOAD DATA_READY // The DATA_READY pin is shared with the ESP_DOWNLOAD pin
25+
26+
CEspChipManager& CEspChipManager::getInstance() {
27+
static CEspChipManager instance;
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return instance;
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}
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31+
void CEspChipManager::initialize() {
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if (!isInitialized) {
33+
forceReset();
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isInitialized = true;
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}
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}
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38+
void CEspChipManager::forceReset() {
39+
R_IOPORT_PinCfg(NULL, ESP_RESET, IOPORT_CFG_PORT_DIRECTION_OUTPUT);
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// Set the ESP_DOWNLOAD pin to high to ensure the ESP doesn't enter in download mode when resetting
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R_IOPORT_PinCfg(NULL, ESP_DOWNLOAD, (uint32_t) (IOPORT_CFG_PORT_DIRECTION_OUTPUT));
42+
R_IOPORT_PinWrite(NULL, ESP_DOWNLOAD, BSP_IO_LEVEL_HIGH);
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delay(100);
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R_IOPORT_PinWrite(NULL, ESP_RESET, BSP_IO_LEVEL_HIGH);
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R_IOPORT_PinWrite(NULL, ESP_RESET, BSP_IO_LEVEL_LOW);
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R_IOPORT_PinWrite(NULL, ESP_RESET, BSP_IO_LEVEL_HIGH);
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R_IOPORT_PinWrite(NULL, ESP_DOWNLOAD, BSP_IO_LEVEL_LOW);
48+
R_IOPORT_PinCfg(NULL, ESP_DOWNLOAD, (uint32_t) (IOPORT_CFG_IRQ_ENABLE | IOPORT_CFG_PORT_DIRECTION_INPUT));
49+
}
50+

‎libraries/ESPhost/src/EspChipManager.h

Lines changed: 66 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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1+
/* ########################################################################## */
2+
/* - File: EspChipManager.h
3+
- Copyright (c): 2025 Arduino srl.
4+
- Author: Fabio Massimo Centonze (f.centonze@arduino.cc)
5+
6+
This library is free software; you can redistribute it and/or
7+
modify it under the terms of the GNU Lesser General Public
8+
License as published by the Free Software Foundation; either
9+
version 2.1 of the License, or (at your option) any later version.
10+
11+
This library is distributed in the hope that it will be useful,
12+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14+
Lesser General Public License for more details.
15+
16+
You should have received a copy of the GNU Lesser General Public
17+
License along with this library; if not, write to the Free Software
18+
Foundation, Inc.,51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
19+
/* ########################################################################## */
20+
21+
#ifndef ESP_CHIP_MANAGER_H
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#define ESP_CHIP_MANAGER_H
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#include <Arduino.h>
24+
25+
#ifdef USE_ESP32_C3_DEVKIT_RUST_1
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/* GPIOs */
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#define HANDSHAKE BSP_IO_PORT_05_PIN_05
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#define DATA_READY BSP_IO_PORT_08_PIN_02
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#define DATA_READY_PIN 33
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/* SPI PIN definition */
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#define ESP_MISO BSP_IO_PORT_01_PIN_00
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#define ESP_MOSI BSP_IO_PORT_01_PIN_01
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#define ESP_CK BSP_IO_PORT_01_PIN_02
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#define ESP_CS BSP_IO_PORT_01_PIN_03
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#else
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/* GPIOs */
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#define HANDSHAKE BSP_IO_PORT_08_PIN_06
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#define DATA_READY BSP_IO_PORT_08_PIN_03
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#define DATA_READY_PIN 100
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/* SPI PIN definition */
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#define ESP_MISO BSP_IO_PORT_01_PIN_00
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#define ESP_MOSI BSP_IO_PORT_01_PIN_01
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#define ESP_CK BSP_IO_PORT_01_PIN_02
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#define ESP_CS BSP_IO_PORT_01_PIN_04
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#endif
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50+
class CEspChipManager {
51+
public:
52+
static CEspChipManager& getInstance();
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54+
// Delete copy constructor and assignment operator to enforce singleton
55+
CEspChipManager(const CEspChipManager&) = delete;
56+
CEspChipManager& operator=(const CEspChipManager&) = delete;
57+
// General initialization
58+
void initialize();
59+
// Force a reset of the ESP chip, don't use for initialization
60+
void forceReset();
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private:
62+
CEspChipManager() = default;
63+
~CEspChipManager() = default;
64+
bool isInitialized = false;
65+
};
66+
#endif // ESP_CHIP_MANAGER_H

‎libraries/ESPhost/src/EspSpiDriver.cpp

Lines changed: 3 additions & 31 deletions
Original file line numberDiff line numberDiff line change
@@ -29,6 +29,7 @@
2929
* ######## */
3030

3131
#include "EspSpiDriver.h"
32+
#include "EspChipManager.h"
3233

3334
/* #####################
3435
* Configuration defines
@@ -45,31 +46,6 @@
4546

4647
#define EXT_IRQ_CHANNEL (0)
4748

48-
#ifdef USE_ESP32_C3_DEVKIT_RUST_1
49-
/* GPIOs */
50-
#define HANDSHAKE BSP_IO_PORT_05_PIN_05
51-
#define DATA_READY BSP_IO_PORT_08_PIN_02
52-
#define DATA_READY_PIN 33
53-
54-
/* SPI PIN definition */
55-
#define ESP_MISO BSP_IO_PORT_01_PIN_00
56-
#define ESP_MOSI BSP_IO_PORT_01_PIN_01
57-
#define ESP_CK BSP_IO_PORT_01_PIN_02
58-
#define ESP_CS BSP_IO_PORT_01_PIN_03
59-
#else
60-
/* GPIOs */
61-
#define ESP_RESET BSP_IO_PORT_08_PIN_04
62-
#define HANDSHAKE BSP_IO_PORT_08_PIN_06
63-
#define DATA_READY BSP_IO_PORT_08_PIN_03
64-
#define DATA_READY_PIN 100
65-
66-
/* SPI PIN definition */
67-
#define ESP_MISO BSP_IO_PORT_01_PIN_00
68-
#define ESP_MOSI BSP_IO_PORT_01_PIN_01
69-
#define ESP_CK BSP_IO_PORT_01_PIN_02
70-
#define ESP_CS BSP_IO_PORT_01_PIN_04
71-
#endif
72-
7349
/* #################
7450
* PRIVATE Variables
7551
* ################# */
@@ -157,15 +133,11 @@ int esp_host_spi_init(void) {
157133
}
158134

159135
/* ++++++++++++++++++++++++++++++++++
160-
* GPIOs (HANDSHAKE and DATA_READY)
136+
* GPIOs (HANDSHAKE and CS)
161137
* ++++++++++++++++++++++++++++++++++ */
162138
R_IOPORT_PinCfg(NULL, HANDSHAKE, IOPORT_CFG_PORT_DIRECTION_INPUT);
163-
/* DATA READY is configure in attach interrupt function below */
164139
//#ifdef EXPLICIT_PIN_CONFIGURATION
165-
R_IOPORT_PinCfg(NULL, DATA_READY, (uint32_t) (IOPORT_CFG_IRQ_ENABLE | IOPORT_CFG_PORT_DIRECTION_INPUT ));
166-
167140
R_IOPORT_PinCfg(NULL, ESP_CS, IOPORT_CFG_PORT_DIRECTION_OUTPUT);
168-
R_IOPORT_PinCfg(NULL, ESP_RESET, IOPORT_CFG_PORT_DIRECTION_OUTPUT);
169141
//#endif
170142

171143
/* +++++
@@ -270,7 +242,7 @@ int esp_host_spi_init(void) {
270242
return ESP_HOSTED_SPI_DRIVER_SPI_FAIL_OPEN;
271243
}
272244

273-
R_IOPORT_PinWrite(NULL, ESP_RESET, BSP_IO_LEVEL_HIGH);
245+
CEspChipManager::getInstance().initialize();
274246
spi_driver_initialized = true;
275247
return ESP_HOSTED_SPI_DRIVER_OK;
276248
}

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