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fix(ulp-i2c): fixed ulp i2c not working from main cpu if compiled with 0S or O2

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Compiler would optimize register write to use s8i which do not work for IO registers

Closes https://github.com/espressif/esp-idf/issues/12214
This commit is contained in:
Marius Vikhammer 2023-09-12 16:09:38 +08:00
parent 111779db5a
commit c7532e27fa
1 changed files with 4 additions and 2 deletions
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6
components/ulp/ulp_riscv/ulp_riscv_i2c.c
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@ -12,6 +12,7 @@
#include "soc/sens_reg.h"
#include "soc/clk_tree_defs.h"
#include "hal/i2c_ll.h"
#include "hal/misc.h"
#include "driver/rtc_io.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
@ -215,7 +216,8 @@ static void ulp_riscv_i2c_format_cmd(uint32_t cmd_idx, uint8_t op_code, uint8_t
i2c_dev->command[cmd_idx].ack_en = ack_check_en; // I2C controller verifies that the ACK bit sent by the
// slave device matches the ACK expected bit during WRITE.
// Ignored during RSTART, STOP, END and READ cmds.
i2c_dev->command[cmd_idx].byte_num = byte_num; // Byte Num
HAL_FORCE_MODIFY_U32_REG_FIELD(i2c_dev->command[cmd_idx], byte_num, byte_num); // Byte Num
#elif CONFIG_IDF_TARGET_ESP32S3
/* Reset cmd register */
i2c_dev->i2c_cmd[cmd_idx].val = 0;
@ -230,7 +232,7 @@ static void ulp_riscv_i2c_format_cmd(uint32_t cmd_idx, uint8_t op_code, uint8_t
i2c_dev->i2c_cmd[cmd_idx].i2c_ack_en = ack_check_en; // I2C controller verifies that the ACK bit sent by the
// slave device matches the ACK expected bit during WRITE.
// Ignored during RSTART, STOP, END and READ cmds.
i2c_dev->i2c_cmd[cmd_idx].i2c_byte_num = byte_num; // Byte Num
HAL_FORCE_MODIFY_U32_REG_FIELD(i2c_dev->i2c_cmd[cmd_idx], i2c_byte_num, byte_num); // Byte Num
#endif // CONFIG_IDF_TARGET_ESP32S2
}