mirror of
https://github.com/skot/ESP-Miner.git
synced 2025-03-25 17:21:55 +01:00
7dcb69ebdc
* initial changes for the gammaturbo bringup * added preliminary TPS546 changes * added preliminary EMC2103 support * ASIC temp seems to be maybe working. * magically now fan seems to have the right polarity * added in ideality and beta constants (currently unused). Fixed EMC2103_get_fan_speed() * abstract fan and ASIC temp into thermal functions * abstracted voltage regulator specifics out of tasks and into power.c and vcore.c functions * add TPS546 support for multiple models * move TPS40305/DS4432U vout setter to DS4432U.c * move all ASIC specific functions to asic.c * bad device_model nvs handling * remove old code * add workaround for TPS546 VIN_UV_WARN_LIMIT silicon bug.
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
#include <stdio.h>
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#include <math.h>
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#include "esp_log.h"
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#include "i2c_bitaxe.h"
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#include "DS4432U.h"
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// DS4432U+ -- Adjustable current DAC
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#define DS4432U_SENSOR_ADDR 0x48 // Slave address of the DS4432U+
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#define DS4432U_OUT0_REG 0xF8 // register for current output 0
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#define DS4432U_OUT1_REG 0xF9 // register for current output 1
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// DS4432U Transfer function constants for Bitaxe board
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// #define BITAXE_RFS 80000.0 // R16
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// #define BITAXE_IFS ((DS4432_VRFS * 127.0) / (BITAXE_RFS * 16))
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#define BITAXE_IFS 0.000098921 // (Vrfs / Rfs) x (127/16) -> Vrfs = 0.997, Rfs = 80000
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#define BITAXE_RA 4750.0 // R14
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#define BITAXE_RB 3320.0 // R15
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#define BITAXE_VNOM 1.451 // this is with the current DAC set to 0. Should be pretty close to (VFB*(RA+RB))/RB
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#define BITAXE_VMAX 2.39
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#define BITAXE_VMIN 0.046
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#define TPS40305_VFB 0.6
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static const char *TAG = "DS4432U";
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static i2c_master_dev_handle_t ds4432u_dev_handle;
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/**
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* @brief Initialize the DS4432U+ sensor.
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*
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* @return esp_err_t ESP_OK on success, or an error code on failure.
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*/
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esp_err_t DS4432U_init(void) {
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return i2c_bitaxe_add_device(DS4432U_SENSOR_ADDR, &ds4432u_dev_handle, TAG);
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}
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/**
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* @brief Set the current DAC code for a specific DS4432U output.
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*
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* @param output The output channel (0 or 1).
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* @param code The current code value to set.
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* @return esp_err_t ESP_OK on success, or an error code on failure.
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*/
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esp_err_t DS4432U_set_current_code(uint8_t output, uint8_t code) {
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uint8_t reg = (output == 0) ? DS4432U_OUT0_REG : DS4432U_OUT1_REG;
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return i2c_bitaxe_register_write_byte(ds4432u_dev_handle, reg, code);
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}
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esp_err_t DS4432U_set_voltage(float vout) {
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float change;
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uint8_t reg;
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// make sure the requested voltage is in within range of BITAXE_VMIN and BITAXE_VMAX
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if (vout > BITAXE_VMAX || vout < BITAXE_VMIN) {
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return ESP_FAIL;
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}
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// this is the transfer function. comes from the DS4432U+ datasheet
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change = fabs((((TPS40305_VFB / BITAXE_RB) - ((vout - TPS40305_VFB) / BITAXE_RA)) / BITAXE_IFS) * 127);
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reg = (uint8_t)ceil(change);
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// Set the MSB high if the requested voltage is BELOW nominal
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if (vout < BITAXE_VNOM) {
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reg |= 0x80;
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}
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ESP_RETURN_ON_ERROR(DS4432U_set_current_code(0, reg), TAG, "DS4432U set current code failed!");
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return ESP_OK;
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}
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/**
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* @brief Get the current DAC code value for a specific DS4432U output.
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*
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* @param output The output channel (0 or 1).
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* @param code Pointer to store the current code value.
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* @return esp_err_t ESP_OK on success, or an error code on failure.
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*/
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esp_err_t DS4432U_get_current_code(uint8_t output, uint8_t *code) {
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uint8_t reg = (output == 0) ? DS4432U_OUT0_REG : DS4432U_OUT1_REG;
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return i2c_bitaxe_register_read(ds4432u_dev_handle, reg, code, 1);
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}
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esp_err_t DS4432U_test(void)
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{
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uint8_t data;
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/* Read the DS4432U+ WHO_AM_I register, on power up the register should have the value 0x00 */
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ESP_RETURN_ON_ERROR(i2c_bitaxe_register_read(ds4432u_dev_handle, DS4432U_OUT0_REG, &data, 1), TAG, "Failed to read DS4432U+ OUT0 register");
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ESP_LOGI(TAG, "DS4432U+ OUT0 = 0x%02X", data);
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return ESP_OK;
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}
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