Preparations for dedicated configuration flash page
This commit is contained in:
parent
1e093978f3
commit
4ebb231346
3
.gitignore
vendored
3
.gitignore
vendored
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@ -4,3 +4,6 @@
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# Vim swap files
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.*.sw?
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# generated config HEX files
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utils/*.hex
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2
Makefile
2
Makefile
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@ -32,7 +32,7 @@ LDFLAGS+=--static \
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-nostartfiles -Wl,--gc-sections \
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-mthumb -mcpu=cortex-m0 -mthumb -mfloat-abi=soft
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# the LD script
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# the LD script (RAM-only does not work because the code is too large)
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#LDFLAGS+=-Tldscripts/lnsc-2420-$(BUILD).ld
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LDFLAGS+=-Tldscripts/lnsc-2420-release.ld
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@ -7,6 +7,7 @@
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MEMORY
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{
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/*rom (rx) : ORIGIN = 0x08000000, LENGTH = 64K*/
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conf (r) : ORIGIN = 0x08007c00, LENGTH = 1K
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 4K
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}
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@ -96,6 +97,10 @@ SECTIONS
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. = ALIGN(4);
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end = .;
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.conf : {
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__conf_start = .;
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} >conf
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}
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PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
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@ -3,10 +3,18 @@
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/* Define memory regions. */
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MEMORY
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{
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rom (rx) : ORIGIN = 0x08000000, LENGTH = 32K
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rom (rx) : ORIGIN = 0x08000000, LENGTH = 31K
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conf (r) : ORIGIN = 0x08007c00, LENGTH = 1K
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 4K
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}
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/* Include the common ld script. */
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INCLUDE cortex-m-generic.ld
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SECTIONS
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{
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.conf : {
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__conf_start = .;
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. = ALIGN(4);
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} >conf
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}
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117
src/flash_config.h
Normal file
117
src/flash_config.h
Normal file
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@ -0,0 +1,117 @@
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#ifndef FLASH_CONFIG_H
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#define FLASH_CONFIG_H
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#include <stdint.h>
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extern uint8_t __conf_start;
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#define FLASH_CONFIG_BASE_PTR ((uint8_t*)(&__conf_start))
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/***** Calibration factors *****/
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/* Calibration factor defined here are divided by 1000 to determine the actual
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* scaling factor. Therefore, if the voltage determined by the firmware is 2%
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* lower than the actual voltage, you have to scale by 1.02 and therefore
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* specify 1020 in this list. */
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#define FLASH_CONFIG_CAL_FACTOR_U_BAT (*(uint16_t*)(FLASH_CONFIG_BASE_PTR + 0x0000))
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#define FLASH_CONFIG_CAL_FACTOR_U_SOLAR (*(uint16_t*)(FLASH_CONFIG_BASE_PTR + 0x0002))
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#define FLASH_CONFIG_CAL_FACTOR_U_SW (*(uint16_t*)(FLASH_CONFIG_BASE_PTR + 0x0004))
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#define FLASH_CONFIG_CAL_FACTOR_I_SOLAR (*(uint16_t*)(FLASH_CONFIG_BASE_PTR + 0x0006))
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#define FLASH_CONFIG_CAL_FACTOR_I_LOAD (*(uint16_t*)(FLASH_CONFIG_BASE_PTR + 0x0008))
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/***** General configuration *****/
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/* Battery regulation corridor width (in mV). */
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#define FLASH_CONFIG_U_BAT_REGULATION_CORRIDOR (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0100))
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/* Initial charge battery voltage threshold (in mV). */
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#define FLASH_CONFIG_U_BAT_INITIAL_FULL (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0104))
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/* Cancel initial charge voltage hold below this battery voltage (in mV). */
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#define FLASH_CONFIG_U_BAT_INITIAL_HOLD_CANCEL (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0108))
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/* Transition to floating voltage levels after this time (in ms). */
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#define FLASH_CONFIG_INITIAL_CHARGE_HOLD_TIME (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x010C))
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/* Duration of the transistion from initial charging to float (in ms). */
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#define FLASH_CONFIG_INITIAL_TO_FLOAT_TRANSITION_TIME (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0110))
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/* Float charge battery voltage threshold (in mV). */
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#define FLASH_CONFIG_U_BAT_FLOAT_FULL (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0114))
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/* Minimum voltage difference to U_bat that the solar panels must produce
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* before charging is resumed after it was switched off (in mV). */
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#define FLASH_CONFIG_SLEEP_SOLAR_EXCESS_VOLTAGE (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0118))
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/* Minimum charge current required before charging is stopped to save power at
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* the charge pump (in mA). */
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#define FLASH_CONFIG_SLEEP_SOLAR_CURRENT (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x011C))
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/* Delay between state change and sleep state check (in ms). */
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#define FLASH_CONFIG_SLEEP_STATE_DELAY (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0120))
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/* Delay between charging switch state change and sleep state check(in ms). */
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#define FLASH_CONFIG_SLEEP_SWITCH_DELAY (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0124))
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/* Maximum allowed microcontroller temperature (in units of 0.1 °C). If this
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* temperature is exceeded, charging is stopped. The load is kept on. Do not
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* set this too high as the heat has to propagate from the power MOSFETs. */
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#define FLASH_CONFIG_INTERNAL_TEMPERATURE_LIMIT (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0128))
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/* Resume operation below this temperature (in units of 0.1 °C). */
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#define FLASH_CONFIG_INTERNAL_TEMPERATURE_RECOVERY (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x012C))
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/* Thresholds for load control */
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/* Voltage above which the load is turned on (in mV). */
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#define FLASH_CONFIG_U_BAT_LOAD_ON (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0130))
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/* Voltage below which the load is turned off (in mV). */
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#define FLASH_CONFIG_U_BAT_LOAD_OFF (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0134))
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/* Current at which the overload protection triggers (in mA). */
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#define FLASH_CONFIG_LOAD_CURRENT_LIMIT_MA (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0138))
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/* Inrush tolerance time (in ms). Overload protection is not enforced for this
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* time after load power-on. */
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#define FLASH_CONFIG_LOAD_CURRENT_INRUSH_TIME (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x013C))
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/* Minimum voltage that the charge pump must produce above U_bat before any
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* power FET is switched on (in mV). */
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#define FLASH_CONFIG_MIN_CHARGE_PUMP_EXCESS_VOLTAGE (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0140))
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/* The minimum time the load must be off before it can be switched on again (in ms). */
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#define FLASH_CONFIG_LOAD_ON_DELAY (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0144))
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/* Measurement Averaging:
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* Alpha is specified in units of 1/1000. 1000 means that only the latest
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* value is relevant, 0 means that the measurement has no influence. The latter
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* is useless.
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*
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* The formula to calculate the next averaged value avg from a measurement meas is:
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* avg[k] = meas * (alpha/1000) + avg[k-1] * (1 - alpha/1000)
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*
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* For overload protection (battery voltage, load current), the latest values
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* are always used.
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* */
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/* Averaging factor for load current. */
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#define FLASH_CONFIG_AVG_ALPHA_I_SOLAR (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0148))
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#define FLASH_CONFIG_AVG_ALPHA_I_LOAD (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x014C))
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#define FLASH_CONFIG_AVG_ALPHA_U_BAT (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0150))
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#define FLASH_CONFIG_AVG_ALPHA_U_SW (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0154))
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#define FLASH_CONFIG_AVG_ALPHA_U_SOLAR (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0158))
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#define FLASH_CONFIG_AVG_ALPHA_TEMP (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x015C))
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/* Generic configuration */
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/* Time (in ms) to stay active in idle state before entering deep sleep. */
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#define FLASH_CONFIG_DEEPSLEEP_DELAY (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0160))
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/* Deep sleep duration (in seconds). */
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#define FLASH_CONFIG_DEEPSLEEP_DURATION (*(uint32_t*)(FLASH_CONFIG_BASE_PTR + 0x0164))
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#endif // FLASH_CONFIG_H
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108
utils/config_b26.yaml
Normal file
108
utils/config_b26.yaml
Normal file
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@ -0,0 +1,108 @@
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# Values for the device at the B26 tower
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calibration:
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# Calibration factor defined here are divided by 1000 to determine the actual
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# scaling factor. Therefore, if the voltage determined by the firmware is 2%
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# lower than the actual voltage, you have to scale by 1.02 and therefore
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# specify 1020 in this list.
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CAL_FACTOR_U_BAT: 994
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CAL_FACTOR_U_SOLAR: 997
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CAL_FACTOR_U_SW: 996
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CAL_FACTOR_I_SOLAR: 1015
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CAL_FACTOR_I_LOAD: 1000
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config:
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# Thresholds for charging control
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# Battery regulation corridor width (in mV).
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U_BAT_REGULATION_CORRIDOR: 100
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# Initial charge battery voltage threshold (in mV).
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# stop charging if battery voltage reaches this threshold
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U_BAT_INITIAL_FULL: 28600
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# Cancel initial charge voltage hold below this battery voltage (in mV).
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U_BAT_INITIAL_HOLD_CANCEL: 27000
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# Transition to floating voltage levels after this time (in ms).
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INITIAL_CHARGE_HOLD_TIME: 1800000
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# Duration of the transistion from initial charging to float (in ms).
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INITIAL_TO_FLOAT_TRANSITION_TIME: 600000
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# Float charge battery voltage threshold (in mV).
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# stop charging if battery voltage reaches this threshold
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U_BAT_FLOAT_FULL: 27600
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# Minimum voltage difference to U_bat that the solar panels must produce
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# before charging is resumed after it was switched off (in mV).
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SLEEP_SOLAR_EXCESS_VOLTAGE: 1000
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# Minimum charge current required before charging is stopped to save power at
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# the charge pump (in mA).
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SLEEP_SOLAR_CURRENT: 1
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# Delay between state change and sleep state check (in ms).
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SLEEP_STATE_DELAY: 60000
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# Delay between charging switch state change and sleep state check(in ms).
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SLEEP_SWITCH_DELAY: 1000
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# Maximum allowed microcontroller temperature (in units of 0.1 °C). If this
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# temperature is exceeded, charging is stopped. The load is kept on. Do not
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# set this too high as the heat has to propagate from the power MOSFETs.
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INTERNAL_TEMPERATURE_LIMIT: 500
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# Resume operation below this temperature (in units of 0.1 °C).
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INTERNAL_TEMPERATURE_RECOVERY: 450
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# Thresholds for load control
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# Voltage above which the load is turned on (in mV).
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U_BAT_LOAD_ON: 27000
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# Voltage below which the load is turned off (in mV).
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U_BAT_LOAD_OFF: 24000
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# Current at which the overload protection triggers (in mA).
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LOAD_CURRENT_LIMIT_MA: 10000
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# Inrush tolerance time (in ms). Overload protection is not enforced for this
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# time after load power-on.
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LOAD_CURRENT_INRUSH_TIME: 10
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# Minimum voltage that the charge pump must produce above U_bat before any
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# power FET is switched on (in mV).
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MIN_CHARGE_PUMP_EXCESS_VOLTAGE: 10000
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# The minimum time the load must be off before it can be switched on again (in ms).
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LOAD_ON_DELAY: 10000
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# Measurement Averaging:
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# Alpha is specified in units of 1/1000. 1000 means that only the latest
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# value is relevant, 0 means that the measurement has no influence. The latter
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# is useless.
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#
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# The formula to calculate the next averaged value avg from a measurement meas is:
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# avg[k] = meas * (alpha/1000) + avg[k-1] * (1 alpha/1000)
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#
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# For overload protection (battery voltage, load current), the latest values
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# are always used.
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# Averaging factor for load current.
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AVG_ALPHA_I_SOLAR: 10
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AVG_ALPHA_I_LOAD: 10
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AVG_ALPHA_U_BAT: 100
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AVG_ALPHA_U_SW: 100
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AVG_ALPHA_U_SOLAR: 100
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AVG_ALPHA_TEMP: 10
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# Generic configuration
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# Time (in ms) to stay active in idle state before entering deep sleep.
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DEEPSLEEP_DELAY: 1000
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# Deep sleep duration (in seconds).
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DEEPSLEEP_DURATION: 10
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108
utils/config_dev.yaml
Normal file
108
utils/config_dev.yaml
Normal file
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@ -0,0 +1,108 @@
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# Values for the development device
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calibration:
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# Calibration factor defined here are divided by 1000 to determine the actual
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# scaling factor. Therefore, if the voltage determined by the firmware is 2%
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# lower than the actual voltage, you have to scale by 1.02 and therefore
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# specify 1020 in this list.
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CAL_FACTOR_U_BAT: 1012
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CAL_FACTOR_U_SOLAR: 1015
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CAL_FACTOR_U_SW: 1006
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CAL_FACTOR_I_SOLAR: 3980
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CAL_FACTOR_I_LOAD: 1000
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config:
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# Thresholds for charging control
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# Battery regulation corridor width (in mV).
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U_BAT_REGULATION_CORRIDOR: 100
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# Initial charge battery voltage threshold (in mV).
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# stop charging if battery voltage reaches this threshold
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U_BAT_INITIAL_FULL: 28600
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# Cancel initial charge voltage hold below this battery voltage (in mV).
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U_BAT_INITIAL_HOLD_CANCEL: 27000
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# Transition to floating voltage levels after this time (in ms).
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INITIAL_CHARGE_HOLD_TIME: 1800000
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# Duration of the transistion from initial charging to float (in ms).
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INITIAL_TO_FLOAT_TRANSITION_TIME: 600000
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# Float charge battery voltage threshold (in mV).
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# stop charging if battery voltage reaches this threshold
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U_BAT_FLOAT_FULL: 27600
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# Minimum voltage difference to U_bat that the solar panels must produce
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# before charging is resumed after it was switched off (in mV).
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SLEEP_SOLAR_EXCESS_VOLTAGE: 1000
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# Minimum charge current required before charging is stopped to save power at
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# the charge pump (in mA).
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SLEEP_SOLAR_CURRENT: 1
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# Delay between state change and sleep state check (in ms).
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SLEEP_STATE_DELAY: 60000
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# Delay between charging switch state change and sleep state check(in ms).
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SLEEP_SWITCH_DELAY: 1000
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# Maximum allowed microcontroller temperature (in units of 0.1 °C). If this
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# temperature is exceeded, charging is stopped. The load is kept on. Do not
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# set this too high as the heat has to propagate from the power MOSFETs.
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INTERNAL_TEMPERATURE_LIMIT: 500
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# Resume operation below this temperature (in units of 0.1 °C).
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INTERNAL_TEMPERATURE_RECOVERY: 450
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# Thresholds for load control
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# Voltage above which the load is turned on (in mV).
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U_BAT_LOAD_ON: 27000
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# Voltage below which the load is turned off (in mV).
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U_BAT_LOAD_OFF: 24000
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# Current at which the overload protection triggers (in mA).
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LOAD_CURRENT_LIMIT_MA: 10000
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# Inrush tolerance time (in ms). Overload protection is not enforced for this
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# time after load power-on.
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LOAD_CURRENT_INRUSH_TIME: 10
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# Minimum voltage that the charge pump must produce above U_bat before any
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# power FET is switched on (in mV).
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MIN_CHARGE_PUMP_EXCESS_VOLTAGE: 10000
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# The minimum time the load must be off before it can be switched on again (in ms).
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LOAD_ON_DELAY: 10000
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# Measurement Averaging:
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# Alpha is specified in units of 1/1000. 1000 means that only the latest
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# value is relevant, 0 means that the measurement has no influence. The latter
|
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# is useless.
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#
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# The formula to calculate the next averaged value avg from a measurement meas is:
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# avg[k] = meas * (alpha/1000) + avg[k-1] * (1 alpha/1000)
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#
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# For overload protection (battery voltage, load current), the latest values
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# are always used.
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# Averaging factor for load current.
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AVG_ALPHA_I_SOLAR: 10
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AVG_ALPHA_I_LOAD: 10
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AVG_ALPHA_U_BAT: 100
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AVG_ALPHA_U_SW: 100
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AVG_ALPHA_U_SOLAR: 100
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AVG_ALPHA_TEMP: 10
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# Generic configuration
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# Time (in ms) to stay active in idle state before entering deep sleep.
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DEEPSLEEP_DELAY: 1000
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# Deep sleep duration (in seconds).
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DEEPSLEEP_DURATION: 10
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69
utils/config_to_hex.py
Executable file
69
utils/config_to_hex.py
Executable file
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@ -0,0 +1,69 @@
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#!/usr/bin/env python3
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import sys
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import struct
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import yaml
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from intelhex import IntelHex
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BASE_ADDR = 0x08007C00
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CALIBRATION_KEY_TO_OFFSET = {
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"CAL_FACTOR_U_BAT": 0x0000,
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"CAL_FACTOR_U_SOLAR": 0x0002,
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"CAL_FACTOR_U_SW": 0x0004,
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"CAL_FACTOR_I_SOLAR": 0x0006,
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"CAL_FACTOR_I_LOAD": 0x0008,
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}
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CONFIG_KEY_TO_OFFSET = {
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"U_BAT_REGULATION_CORRIDOR": 0x0100,
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"U_BAT_INITIAL_FULL": 0x0104,
|
||||
"U_BAT_INITIAL_HOLD_CANCEL": 0x0108,
|
||||
"INITIAL_CHARGE_HOLD_TIME": 0x010C,
|
||||
"INITIAL_TO_FLOAT_TRANSITION_TIME": 0x0110,
|
||||
"U_BAT_FLOAT_FULL": 0x0114,
|
||||
"SLEEP_SOLAR_EXCESS_VOLTAGE": 0x0118,
|
||||
"SLEEP_SOLAR_CURRENT": 0x011C,
|
||||
"SLEEP_STATE_DELAY": 0x0120,
|
||||
"SLEEP_SWITCH_DELAY": 0x0124,
|
||||
"INTERNAL_TEMPERATURE_LIMIT": 0x0128,
|
||||
"INTERNAL_TEMPERATURE_RECOVERY": 0x012C,
|
||||
"U_BAT_LOAD_ON": 0x0130,
|
||||
"U_BAT_LOAD_OFF": 0x0134,
|
||||
"LOAD_CURRENT_LIMIT_MA": 0x0138,
|
||||
"LOAD_CURRENT_INRUSH_TIME": 0x013C,
|
||||
"MIN_CHARGE_PUMP_EXCESS_VOLTAGE": 0x0140,
|
||||
"LOAD_ON_DELAY": 0x0144,
|
||||
"AVG_ALPHA_I_SOLAR": 0x0148,
|
||||
"AVG_ALPHA_I_LOAD": 0x014C,
|
||||
"AVG_ALPHA_U_BAT": 0x0150,
|
||||
"AVG_ALPHA_U_SW": 0x0154,
|
||||
"AVG_ALPHA_U_SOLAR": 0x0158,
|
||||
"AVG_ALPHA_TEMP": 0x015C,
|
||||
"DEEPSLEEP_DELAY": 0x0160,
|
||||
"DEEPSLEEP_DURATION": 0x0164,
|
||||
}
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
output = IntelHex()
|
||||
|
||||
if len(sys.argv) < 3:
|
||||
print(f"usage: {sys.argv[0]} <yaml-config> <output-hex>")
|
||||
sys.exit(1)
|
||||
|
||||
with open(sys.argv[1], 'r') as configfile:
|
||||
config = yaml.safe_load(configfile)
|
||||
|
||||
for key, offset in CALIBRATION_KEY_TO_OFFSET.items():
|
||||
value = config['calibration'][key]
|
||||
enc_bytes = struct.pack('<H', value)
|
||||
output.puts(BASE_ADDR + offset, enc_bytes)
|
||||
|
||||
for key, offset in CONFIG_KEY_TO_OFFSET.items():
|
||||
value = config['config'][key]
|
||||
enc_bytes = struct.pack('<I', value)
|
||||
output.puts(BASE_ADDR + offset, enc_bytes)
|
||||
|
||||
output.write_hex_file(sys.argv[2])
|
||||
Loading…
Reference in a new issue