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lower DAC gain from 12.6 to 8.7, enabling upwards of 25 Amps

This commit is contained in:
Chris Anderson 2024-01-19 11:24:54 -05:00 committed by rusefillc
parent 7bcee1b813
commit da1c73e2e7
5 changed files with 15 additions and 15 deletions
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4
pt2001/project/rusefi/MicrocodeCh1/ch1.psc
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@ -5,7 +5,7 @@
* Note: The Thold_tot variable defines the current profile time out. The active STARTx pin is expected to toggle in is low state before this time out. * Note: The Thold_tot variable defines the current profile time out. The active STARTx pin is expected to toggle in is low state before this time out.
* ### Initialization phase ### * ### Initialization phase ###
init0: stgn gain12.6 sssc; * Set the gain of the opamp of the current measure block 1 init0: stgn gain8.68 sssc; * Set the gain of the opamp of the current measure block 1
ldjr1 eoinj0; * Load the eoinj line label Code RAM address into the register jr1 ldjr1 eoinj0; * Load the eoinj line label Code RAM address into the register jr1
ldjr2 idle0; * Load the idle line label Code RAM address into the register jr2 ldjr2 idle0; * Load the idle line label Code RAM address into the register jr2
cwef jr1 _start row1; * If the start signal goes low, go to eoinj phase cwef jr1 _start row1; * If the start signal goes low, go to eoinj phase
@ -101,7 +101,7 @@ eoinj0: stos off off off; * Turn VBAT off, BOOST off,
* ### Channel 1 - uCore1 controls the injectors 3 and 4 ### * ### Channel 1 - uCore1 controls the injectors 3 and 4 ###
* ### Initialization phase ### * ### Initialization phase ###
init1: stgn gain12.6 sssc; * Set the gain of the opamp of the current measure block 1 init1: stgn gain8.68 sssc; * Set the gain of the opamp of the current measure block 1
ldjr1 eoinj1; * Load the eoinj line label Code RAM address into the register jr1 ldjr1 eoinj1; * Load the eoinj line label Code RAM address into the register jr1
ldjr2 idle1; * Load the idle line label Code RAM address into the register jr2 ldjr2 idle1; * Load the idle line label Code RAM address into the register jr2
cwef jr1 _start row1; * If the start signal goes low, go to eoinj phase cwef jr1 _start row1; * If the start signal goes low, go to eoinj phase

4
pt2001/project/rusefi/Registers/ch1_config_reg.bin
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@ -6,8 +6,8 @@
0000000000000000 0000000000000000
0000000000000000 0000000000000000
0000000001110010 0000000001110010
1001000111100111 1101010000011101
0101011011010110 0100111010100110
0000000000000000 0000000000000000
0000000000111001 0000000000111001
0000000000000000 0000000000000000

6
pt2001/project/rusefi/Registers/dram1.bin
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@ -1,6 +1,6 @@
0000000011000000 0000000010001101
0000000010010010 0000000001101101
0000000001001001 0000000000111010
0000000000111100 0000000000111100
0001000001101000 0001000001101000
0000000000111100 0000000000111100

12
pt2001/project/rusefi/sample_code/PT2001_LoadData.c
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@ -1,7 +1,7 @@
/******************************************************************************* /*******************************************************************************
* Example Code * Example Code
* *
* Copyright(C) 2023 NXP Semiconductors * Copyright(C) 2024 NXP Semiconductors
* NXP Semiconductors Confidential and Proprietary * NXP Semiconductors Confidential and Proprietary
* *
* Software that is described herein is for illustrative purposes only * Software that is described herein is for illustrative purposes only
@ -50,12 +50,12 @@
// Data to be loaded into the Code RAM 1 memory space // Data to be loaded into the Code RAM 1 memory space
unsigned short PT2001_code_RAM1[114] = unsigned short PT2001_code_RAM1[114] =
{ {
0x7612, 0x6C57, 0x917F, 0xA514, 0x8DD6, 0xC288, 0x4F9B, 0x1EC9, 0x5C0D, 0xF99D, 0x761E, 0x6C57, 0x917F, 0xA514, 0x8DD6, 0xC288, 0x4F9B, 0x1EC9, 0x5C0D, 0xF99D,
0x4129, 0x2EEE, 0x97B0, 0x3534, 0x93BA, 0x5D25, 0xEE21, 0x2AAD, 0xE457, 0x2DB8, 0x4129, 0x2EEE, 0x97B0, 0x3534, 0x93BA, 0x5D25, 0xEE21, 0x2AAD, 0xE457, 0x2DB8,
0xBED3, 0xBEB9, 0x2F08, 0xDA3C, 0x0499, 0x8DDE, 0xB519, 0x8E21, 0xAE4D, 0xF3E1, 0xBED3, 0xBEB9, 0x2F08, 0xDA3C, 0x0499, 0x8DDE, 0xB519, 0x8E21, 0xAE4D, 0xF3E1,
0x6E41, 0x9F0E, 0x2476, 0xBA8B, 0x4422, 0x0133, 0x6DAC, 0xA368, 0xE91F, 0x5E97, 0x6E41, 0x9F0E, 0x2476, 0xBA8B, 0x4422, 0x0133, 0x6DAC, 0xA368, 0xE91F, 0x5E97,
0x7820, 0x4662, 0xFEE0, 0x6F02, 0x8A92, 0x9A83, 0xE194, 0x6FD0, 0x1895, 0x80AB, 0x7820, 0x4662, 0xFEE0, 0x6F02, 0x8A92, 0x9A83, 0xE194, 0x6FD0, 0x1895, 0x80AB,
0x4F93, 0xE1DA, 0x51BF, 0x70D8, 0xF25E, 0x7021, 0x2270, 0xF748, 0x51C5, 0xA4F1, 0x4F93, 0xE1DA, 0x51BF, 0x70D8, 0xF25E, 0x7021, 0x2270, 0xF744, 0x51C5, 0xA4F1,
0x329C, 0x5ADC, 0xD84C, 0xF054, 0x6E39, 0x2389, 0xCD76, 0x52F5, 0xF072, 0x8D02, 0x329C, 0x5ADC, 0xD84C, 0xF054, 0x6E39, 0x2389, 0xCD76, 0x52F5, 0xF072, 0x8D02,
0x4045, 0xDFEA, 0x1D65, 0xAD07, 0x33F3, 0x6650, 0x8854, 0x210D, 0x3A3C, 0xD20B, 0x4045, 0xDFEA, 0x1D65, 0xAD07, 0x33F3, 0x6650, 0x8854, 0x210D, 0x3A3C, 0xD20B,
0x25B3, 0x8090, 0x27DE, 0xDF3E, 0xE928, 0x7D95, 0x83CC, 0xA366, 0x7879, 0x8A2C, 0x25B3, 0x8090, 0x27DE, 0xDF3E, 0xE928, 0x7D95, 0x83CC, 0xA366, 0x7879, 0x8A2C,
@ -77,13 +77,13 @@ unsigned short PT2001_code_RAM2[43] =
// Data to be loaded into the Data RAM memory space // Data to be loaded into the Data RAM memory space
unsigned short PT2001_data_RAM[128] = unsigned short PT2001_data_RAM[128] =
{ {
0x00C0, 0x0092, 0x0049, 0x003C, 0x1068, 0x003C, 0x0168, 0xEA60, 0x0960, 0x0258, 0x008D, 0x006D, 0x003A, 0x003C, 0x1068, 0x003C, 0x0168, 0xEA60, 0x0960, 0x0258,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x00C1, 0x00BF, 0x0040, 0x001D, 0x0000, 0x0046, 0x0000, 0x0000, 0x0000, 0x0000, 0x00C1, 0x00BF, 0x0040, 0x001D, 0x0000, 0x0046,
0x0037, 0x003C, 0xEA60, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0037, 0x003C, 0xEA60, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
@ -103,7 +103,7 @@ unsigned short PT2001_main_config[29] =
// Data to be loaded into the CH1 register memory space // Data to be loaded into the CH1 register memory space
unsigned short PT2001_ch1_config[19] = unsigned short PT2001_ch1_config[19] =
{ {
0x0008, 0x0000, 0x0000, 0x0000, 0x0303, 0x0000, 0x0000, 0x0072, 0x91E7, 0x56D6, 0x0008, 0x0000, 0x0000, 0x0000, 0x0303, 0x0000, 0x0000, 0x0072, 0xD41D, 0x4EA6,
0x0000, 0x0039, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 0x0000, 0x0039, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
}; };

4
pt2001/src/pt2001.cpp
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@ -102,10 +102,10 @@ static uint16_t dacEquation(float current) {
DAC_VALUE = ((I*G_DA_DIFF * R_SENSEx) + V_DA_BIAS) / V_DAC_LSB DAC_VALUE = ((I*G_DA_DIFF * R_SENSEx) + V_DA_BIAS) / V_DAC_LSB
V_DAC_LSB is the DAC resolution = 9.77mv V_DAC_LSB is the DAC resolution = 9.77mv
V_DA_BIAS = 250mV V_DA_BIAS = 250mV
G_DA_DIFF = Gain: 5.79, 8.68, [12.53], 19.25 G_DA_DIFF = Gain: 5.79, [8.68], 12.53, 19.25
R_SENSE = 10mOhm soldered on board R_SENSE = 10mOhm soldered on board
*/ */
return ((current * 12.53f * 10) + 250.0f) / 9.77f; return ((current * 8.68f * 10) + 250.0f) / 9.77f;
} }
void Pt2001Base::setTimings() { void Pt2001Base::setTimings() {