You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
444 lines
16 KiB
444 lines
16 KiB
/* |
|
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio |
|
|
|
Licensed under the Apache License, Version 2.0 (the "License"); |
|
you may not use this file except in compliance with the License. |
|
You may obtain a copy of the License at |
|
|
|
http://www.apache.org/licenses/LICENSE-2.0 |
|
|
|
Unless required by applicable law or agreed to in writing, software |
|
distributed under the License is distributed on an "AS IS" BASIS, |
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
See the License for the specific language governing permissions and |
|
limitations under the License. |
|
*/ |
|
/* |
|
this header is modelled on the one for the Nucleo-144 H743 board from ChibiOS |
|
*/ |
|
#pragma once |
|
|
|
|
|
#ifndef STM32_LSECLK |
|
#define STM32_LSECLK 32768U |
|
#endif |
|
|
|
#ifndef STM32_LSEDRV |
|
#define STM32_LSEDRV (3U << 3U) |
|
#endif |
|
|
|
/* |
|
* General settings. |
|
*/ |
|
#define STM32_NO_INIT FALSE |
|
#define STM32_SYS_CK_ENFORCED_VALUE STM32_HSICLK |
|
|
|
/* |
|
* Memory attributes settings. |
|
*/ |
|
#define STM32_NOCACHE_SRAM1_SRAM2 FALSE |
|
#define STM32_NOCACHE_SRAM3 TRUE |
|
|
|
/* |
|
* PWR system settings. |
|
* Reading STM32 Reference Manual is required. |
|
* Register constants are taken from the ST header. |
|
*/ |
|
#define STM32_VOS STM32_VOS_SCALE1 |
|
#define STM32_PWR_CR1 (PWR_CR1_SVOS_1 | PWR_CR1_SVOS_0) |
|
#define STM32_PWR_CR2 (PWR_CR2_BREN) |
|
#define STM32_PWR_CR3 (PWR_CR3_LDOEN | PWR_CR3_USB33DEN) |
|
#define STM32_PWR_CPUCR 0 |
|
|
|
/* |
|
* Clock tree static settings. |
|
* Reading STM32 Reference Manual is required. |
|
*/ |
|
#define STM32_HSI_ENABLED FALSE |
|
#define STM32_LSI_ENABLED FALSE |
|
#define STM32_CSI_ENABLED TRUE |
|
#define STM32_HSI48_ENABLED TRUE |
|
#define STM32_HSE_ENABLED TRUE |
|
#define STM32_LSE_ENABLED FALSE |
|
#define STM32_HSIDIV STM32_HSIDIV_DIV1 |
|
|
|
/* |
|
* PLLs static settings. |
|
* Reading STM32 Reference Manual is required. |
|
*/ |
|
#define STM32_PLLSRC STM32_PLLSRC_HSE_CK |
|
#define STM32_PLLCFGR_MASK ~0 |
|
|
|
/* |
|
setup PLLs based on HSE clock |
|
*/ |
|
#if STM32_HSECLK == 8000000U |
|
// this gives 400MHz system clock |
|
#define STM32_PLL1_DIVM_VALUE 1 |
|
#define STM32_PLL2_DIVM_VALUE 1 |
|
#define STM32_PLL3_DIVM_VALUE 2 |
|
#elif STM32_HSECLK == 16000000U |
|
// this gives 400MHz system clock |
|
#define STM32_PLL1_DIVM_VALUE 2 |
|
#define STM32_PLL2_DIVM_VALUE 2 |
|
#define STM32_PLL3_DIVM_VALUE 4 |
|
#elif STM32_HSECLK == 24000000U |
|
// this gives 400MHz system clock |
|
#define STM32_PLL1_DIVM_VALUE 3 |
|
#define STM32_PLL2_DIVM_VALUE 3 |
|
#define STM32_PLL3_DIVM_VALUE 6 |
|
#else |
|
#error "Unsupported HSE clock" |
|
#endif |
|
|
|
#if (STM32_HSECLK == 8000000U) || (STM32_HSECLK == 16000000U) || (STM32_HSECLK == 24000000U) |
|
// common clock tree for multiples of 8MHz crystals |
|
#define STM32_PLL1_DIVN_VALUE 100 |
|
#define STM32_PLL1_DIVP_VALUE 2 |
|
#define STM32_PLL1_DIVQ_VALUE 8 |
|
#define STM32_PLL1_DIVR_VALUE 2 |
|
|
|
#define STM32_PLL2_DIVN_VALUE 25 |
|
#define STM32_PLL2_DIVP_VALUE 2 |
|
#define STM32_PLL2_DIVQ_VALUE 2 |
|
#define STM32_PLL2_DIVR_VALUE 2 |
|
|
|
#define STM32_PLL3_DIVN_VALUE 72 |
|
#define STM32_PLL3_DIVP_VALUE 3 |
|
#define STM32_PLL3_DIVQ_VALUE 6 |
|
#define STM32_PLL3_DIVR_VALUE 9 |
|
#endif // 8MHz clock multiples |
|
|
|
#define STM32_PLL1_ENABLED TRUE |
|
#define STM32_PLL1_P_ENABLED TRUE |
|
#define STM32_PLL1_Q_ENABLED TRUE |
|
#define STM32_PLL1_R_ENABLED TRUE |
|
#define STM32_PLL1_FRACN_VALUE 0 |
|
|
|
#define STM32_PLL2_ENABLED TRUE |
|
#define STM32_PLL2_P_ENABLED TRUE |
|
#define STM32_PLL2_Q_ENABLED TRUE |
|
#define STM32_PLL2_R_ENABLED TRUE |
|
#define STM32_PLL2_FRACN_VALUE 0 |
|
|
|
#define STM32_PLL3_ENABLED TRUE |
|
#define STM32_PLL3_P_ENABLED TRUE |
|
#define STM32_PLL3_Q_ENABLED TRUE |
|
#define STM32_PLL3_R_ENABLED TRUE |
|
#define STM32_PLL3_FRACN_VALUE 0 |
|
|
|
/* |
|
* Core clocks dynamic settings (can be changed at runtime). |
|
* Reading STM32 Reference Manual is required. |
|
*/ |
|
#define STM32_SW STM32_SW_PLL1_P_CK |
|
#define STM32_RTCSEL STM32_RTCSEL_NOCLK |
|
#define STM32_D1CPRE STM32_D1CPRE_DIV1 |
|
#define STM32_D1HPRE STM32_D1HPRE_DIV4 |
|
#define STM32_D1PPRE3 STM32_D1PPRE3_DIV1 |
|
#define STM32_D2PPRE1 STM32_D2PPRE1_DIV1 |
|
#define STM32_D2PPRE2 STM32_D2PPRE2_DIV1 |
|
#define STM32_D3PPRE4 STM32_D3PPRE4_DIV1 |
|
|
|
/* |
|
* Peripherals clocks static settings. |
|
* Reading STM32 Reference Manual is required. |
|
*/ |
|
#define STM32_MCO1SEL STM32_MCO1SEL_HSE_CK |
|
#define STM32_MCO1PRE_VALUE 4 |
|
#define STM32_MCO2SEL STM32_MCO2SEL_SYS_CK |
|
#define STM32_MCO2PRE_VALUE 4 |
|
#define STM32_TIMPRE_ENABLE TRUE |
|
#define STM32_HRTIMSEL 0 |
|
#define STM32_STOPKERWUCK 0 |
|
#define STM32_STOPWUCK 0 |
|
#define STM32_RTCPRE_VALUE 8 |
|
#define STM32_CKPERSEL STM32_CKPERSEL_HSE_CK |
|
#define STM32_SDMMCSEL STM32_SDMMCSEL_PLL1_Q_CK |
|
#define STM32_QSPISEL STM32_QSPISEL_HCLK |
|
#define STM32_FMCSEL STM32_QSPISEL_HCLK |
|
#define STM32_SWPSEL STM32_SWPSEL_PCLK1 |
|
#define STM32_FDCANSEL STM32_FDCANSEL_PLL1_Q_CK |
|
#define STM32_DFSDM1SEL STM32_DFSDM1SEL_PCLK2 |
|
#define STM32_SPDIFSEL STM32_SPDIFSEL_PLL1_Q_CK |
|
#define STM32_SPI45SEL STM32_SPI45SEL_PLL2_Q_CK |
|
#define STM32_SPI123SEL STM32_SPI123SEL_PLL1_Q_CK |
|
#define STM32_SAI23SEL STM32_SAI23SEL_PLL1_Q_CK |
|
#define STM32_SAI1SEL STM32_SAI1SEL_PLL1_Q_CK |
|
#define STM32_LPTIM1SEL STM32_LPTIM1SEL_PCLK1 |
|
#define STM32_CECSEL STM32_CECSEL_DISABLE |
|
#define STM32_USBSEL STM32_USBSEL_PLL3_Q_CK |
|
#define STM32_I2C123SEL STM32_I2C123SEL_PLL3_R_CK |
|
#define STM32_RNGSEL STM32_RNGSEL_HSI48_CK |
|
#define STM32_USART16SEL STM32_USART16SEL_PCLK2 |
|
#define STM32_USART234578SEL STM32_USART234578SEL_PCLK1 |
|
#define STM32_SPI6SEL STM32_SPI6SEL_PLL2_Q_CK |
|
#define STM32_SAI4BSEL STM32_SAI4BSEL_PLL1_Q_CK |
|
#define STM32_SAI4ASEL STM32_SAI4ASEL_PLL1_Q_CK |
|
#define STM32_ADCSEL STM32_ADCSEL_PLL3_R_CK |
|
#define STM32_LPTIM345SEL STM32_LPTIM345SEL_PCLK4 |
|
#define STM32_LPTIM2SEL STM32_LPTIM2SEL_PCLK4 |
|
#define STM32_I2C4SEL STM32_I2C4SEL_PCLK4 |
|
#define STM32_LPUART1SEL STM32_LPUART1SEL_PCLK4 |
|
#define STM32_SDMMCSEL STM32_SDMMCSEL_PLL1_Q_CK |
|
|
|
/* |
|
* IRQ system settings. |
|
*/ |
|
#define STM32_IRQ_EXTI0_PRIORITY 6 |
|
#define STM32_IRQ_EXTI1_PRIORITY 6 |
|
#define STM32_IRQ_EXTI2_PRIORITY 6 |
|
#define STM32_IRQ_EXTI3_PRIORITY 6 |
|
#define STM32_IRQ_EXTI4_PRIORITY 6 |
|
#define STM32_IRQ_EXTI5_9_PRIORITY 6 |
|
#define STM32_IRQ_EXTI10_15_PRIORITY 6 |
|
#define STM32_IRQ_EXTI16_PRIORITY 6 |
|
#define STM32_IRQ_EXTI17_PRIORITY 15 |
|
#define STM32_IRQ_EXTI18_PRIORITY 6 |
|
#define STM32_IRQ_EXTI19_PRIORITY 6 |
|
#define STM32_IRQ_EXTI20_PRIORITY 6 |
|
#define STM32_IRQ_EXTI21_PRIORITY 15 |
|
#define STM32_IRQ_EXTI22_PRIORITY 15 |
|
|
|
/* |
|
* ADC driver system settings. |
|
*/ |
|
#define STM32_ADC_DUAL_MODE FALSE |
|
#define STM32_ADC_COMPACT_SAMPLES FALSE |
|
#define STM32_ADC_USE_ADC12 TRUE |
|
#define STM32_ADC_USE_ADC3 FALSE |
|
#define STM32_ADC_ADC12_DMA_PRIORITY 2 |
|
#define STM32_ADC_ADC3_DMA_PRIORITY 2 |
|
#define STM32_ADC_ADC12_IRQ_PRIORITY 5 |
|
#define STM32_ADC_ADC3_IRQ_PRIORITY 5 |
|
#define STM32_ADC_ADC12_CLOCK_MODE ADC_CCR_CKMODE_ADCCK |
|
#define STM32_ADC_ADC3_CLOCK_MODE ADC_CCR_CKMODE_ADCCK |
|
|
|
// we call it ADC1 in hwdef.dat, but driver uses ADC12 for DMA stream |
|
#define STM32_ADC_ADC12_DMA_STREAM STM32_ADC_ADC1_DMA_STREAM |
|
|
|
|
|
/* |
|
* CAN driver system settings. |
|
*/ |
|
#define STM32_CAN_USE_CAN1 FALSE |
|
#define STM32_CAN_USE_CAN2 FALSE |
|
#define STM32_CAN_USE_CAN3 FALSE |
|
#define STM32_CAN_CAN1_IRQ_PRIORITY 11 |
|
#define STM32_CAN_CAN2_IRQ_PRIORITY 11 |
|
#define STM32_CAN_CAN3_IRQ_PRIORITY 11 |
|
|
|
/* |
|
* DAC driver system settings. |
|
*/ |
|
#define STM32_DAC_DUAL_MODE FALSE |
|
#define STM32_DAC_USE_DAC1_CH1 FALSE |
|
#define STM32_DAC_USE_DAC1_CH2 FALSE |
|
#define STM32_DAC_DAC1_CH1_IRQ_PRIORITY 10 |
|
#define STM32_DAC_DAC1_CH2_IRQ_PRIORITY 10 |
|
#define STM32_DAC_DAC1_CH1_DMA_PRIORITY 2 |
|
#define STM32_DAC_DAC1_CH2_DMA_PRIORITY 2 |
|
|
|
/* |
|
* GPT driver system settings. |
|
*/ |
|
#define STM32_GPT_USE_TIM1 FALSE |
|
#define STM32_GPT_USE_TIM2 FALSE |
|
#define STM32_GPT_USE_TIM3 FALSE |
|
#define STM32_GPT_USE_TIM4 FALSE |
|
#define STM32_GPT_USE_TIM5 FALSE |
|
#define STM32_GPT_USE_TIM6 FALSE |
|
#define STM32_GPT_USE_TIM7 FALSE |
|
#define STM32_GPT_USE_TIM8 FALSE |
|
#define STM32_GPT_USE_TIM9 FALSE |
|
#define STM32_GPT_USE_TIM11 FALSE |
|
#define STM32_GPT_USE_TIM12 FALSE |
|
#define STM32_GPT_USE_TIM14 FALSE |
|
#define STM32_GPT_TIM1_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM2_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM3_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM4_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM5_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM6_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM7_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM8_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM9_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM11_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM12_IRQ_PRIORITY 7 |
|
#define STM32_GPT_TIM14_IRQ_PRIORITY 7 |
|
|
|
/* |
|
* I2C driver system settings. |
|
*/ |
|
#define STM32_I2C_BUSY_TIMEOUT 50 |
|
#define STM32_I2C_I2C1_IRQ_PRIORITY 5 |
|
#define STM32_I2C_I2C2_IRQ_PRIORITY 5 |
|
#define STM32_I2C_I2C3_IRQ_PRIORITY 5 |
|
#define STM32_I2C_I2C4_IRQ_PRIORITY 5 |
|
#define STM32_I2C_I2C1_DMA_PRIORITY 3 |
|
#define STM32_I2C_I2C2_DMA_PRIORITY 3 |
|
#define STM32_I2C_I2C3_DMA_PRIORITY 3 |
|
#define STM32_I2C_I2C4_DMA_PRIORITY 3 |
|
#define STM32_I2C_DMA_ERROR_HOOK(i2cp) osalSysHalt("DMA failure") |
|
|
|
/* |
|
* ICU driver system settings. |
|
*/ |
|
#define STM32_ICU_USE_TIM1 FALSE |
|
#define STM32_ICU_USE_TIM2 FALSE |
|
#define STM32_ICU_USE_TIM3 FALSE |
|
#define STM32_ICU_USE_TIM4 FALSE |
|
#define STM32_ICU_USE_TIM5 FALSE |
|
#define STM32_ICU_USE_TIM8 FALSE |
|
#define STM32_ICU_USE_TIM9 FALSE |
|
#define STM32_ICU_TIM1_IRQ_PRIORITY 7 |
|
#define STM32_ICU_TIM2_IRQ_PRIORITY 7 |
|
#define STM32_ICU_TIM3_IRQ_PRIORITY 7 |
|
#define STM32_ICU_TIM4_IRQ_PRIORITY 7 |
|
#define STM32_ICU_TIM5_IRQ_PRIORITY 7 |
|
#define STM32_ICU_TIM8_IRQ_PRIORITY 7 |
|
#define STM32_ICU_TIM9_IRQ_PRIORITY 7 |
|
|
|
/* |
|
* MAC driver system settings. |
|
*/ |
|
#define STM32_MAC_TRANSMIT_BUFFERS 2 |
|
#define STM32_MAC_RECEIVE_BUFFERS 4 |
|
#define STM32_MAC_BUFFERS_SIZE 1522 |
|
#define STM32_MAC_PHY_TIMEOUT 100 |
|
#define STM32_MAC_ETH1_CHANGE_PHY_STATE TRUE |
|
#define STM32_MAC_ETH1_IRQ_PRIORITY 13 |
|
#define STM32_MAC_IP_CHECKSUM_OFFLOAD 0 |
|
|
|
/* |
|
* PWM driver system settings. |
|
*/ |
|
#define STM32_PWM_TIM1_IRQ_PRIORITY 7 |
|
#define STM32_PWM_TIM2_IRQ_PRIORITY 7 |
|
#define STM32_PWM_TIM3_IRQ_PRIORITY 7 |
|
#define STM32_PWM_TIM4_IRQ_PRIORITY 7 |
|
#define STM32_PWM_TIM5_IRQ_PRIORITY 7 |
|
#define STM32_PWM_TIM8_IRQ_PRIORITY 7 |
|
#define STM32_PWM_TIM9_IRQ_PRIORITY 7 |
|
|
|
/* |
|
* RTC driver system settings. |
|
*/ |
|
#define STM32_RTC_PRESA_VALUE 32 |
|
#define STM32_RTC_PRESS_VALUE 1024 |
|
#define STM32_RTC_CR_INIT 0 |
|
#define STM32_RTC_TAMPCR_INIT 0 |
|
|
|
/* |
|
* SDC driver system settings. |
|
*/ |
|
#define STM32_SDC_SDMMC_UNALIGNED_SUPPORT TRUE |
|
#define STM32_SDC_SDMMC_WRITE_TIMEOUT 1000 |
|
#define STM32_SDC_SDMMC_READ_TIMEOUT 1000 |
|
#define STM32_SDC_SDMMC_CLOCK_DELAY 10 |
|
#define STM32_SDC_SDMMC1_DMA_PRIORITY 3 |
|
#define STM32_SDC_SDMMC1_IRQ_PRIORITY 9 |
|
|
|
/* |
|
* SERIAL driver system settings. |
|
*/ |
|
#define STM32_SERIAL_USART1_PRIORITY 12 |
|
#define STM32_SERIAL_USART2_PRIORITY 12 |
|
#define STM32_SERIAL_USART3_PRIORITY 12 |
|
#define STM32_SERIAL_UART4_PRIORITY 12 |
|
#define STM32_SERIAL_UART5_PRIORITY 12 |
|
#define STM32_SERIAL_USART6_PRIORITY 12 |
|
#define STM32_SERIAL_UART7_PRIORITY 12 |
|
#define STM32_SERIAL_UART8_PRIORITY 12 |
|
|
|
#define STM32_UART1CLK STM32_PCLK1 |
|
#define STM32_UART2CLK STM32_PCLK1 |
|
#define STM32_UART3CLK STM32_PCLK1 |
|
#define STM32_UART4CLK STM32_PCLK1 |
|
#define STM32_UART5CLK STM32_PCLK1 |
|
#define STM32_UART6CLK STM32_PCLK1 |
|
#define STM32_UART7CLK STM32_PCLK1 |
|
#define STM32_UART8CLK STM32_PCLK1 |
|
|
|
/* |
|
* SPI driver system settings. |
|
*/ |
|
#ifndef STM32_SPI_USE_SPI1 |
|
#define STM32_SPI_USE_SPI1 FALSE |
|
#endif |
|
#ifndef STM32_SPI_USE_SPI2 |
|
#define STM32_SPI_USE_SPI2 FALSE |
|
#endif |
|
#ifndef STM32_SPI_USE_SPI3 |
|
#define STM32_SPI_USE_SPI3 FALSE |
|
#endif |
|
#ifndef STM32_SPI_USE_SPI4 |
|
#define STM32_SPI_USE_SPI4 FALSE |
|
#endif |
|
#ifndef STM32_SPI_USE_SPI5 |
|
#define STM32_SPI_USE_SPI5 FALSE |
|
#endif |
|
#ifndef STM32_SPI_USE_SPI6 |
|
#define STM32_SPI_USE_SPI6 FALSE |
|
#endif |
|
#define STM32_SPI_SPI1_DMA_PRIORITY 1 |
|
#define STM32_SPI_SPI2_DMA_PRIORITY 1 |
|
#define STM32_SPI_SPI3_DMA_PRIORITY 1 |
|
#define STM32_SPI_SPI4_DMA_PRIORITY 1 |
|
#define STM32_SPI_SPI5_DMA_PRIORITY 1 |
|
#define STM32_SPI_SPI6_DMA_PRIORITY 1 |
|
#define STM32_SPI_SPI1_IRQ_PRIORITY 10 |
|
#define STM32_SPI_SPI2_IRQ_PRIORITY 10 |
|
#define STM32_SPI_SPI3_IRQ_PRIORITY 10 |
|
#define STM32_SPI_SPI4_IRQ_PRIORITY 10 |
|
#define STM32_SPI_SPI5_IRQ_PRIORITY 10 |
|
#define STM32_SPI_SPI6_IRQ_PRIORITY 10 |
|
#define STM32_SPI_DMA_ERROR_HOOK(spip) osalSysHalt("DMA failure") |
|
|
|
/* |
|
* ST driver system settings. |
|
*/ |
|
#define STM32_ST_IRQ_PRIORITY 8 |
|
#ifndef STM32_ST_USE_TIMER |
|
#define STM32_ST_USE_TIMER 5 |
|
#endif |
|
|
|
/* |
|
* UART driver system settings. |
|
*/ |
|
#define STM32_UART_USART1_IRQ_PRIORITY 12 |
|
#define STM32_UART_USART2_IRQ_PRIORITY 12 |
|
#define STM32_UART_USART3_IRQ_PRIORITY 12 |
|
#define STM32_UART_UART4_IRQ_PRIORITY 12 |
|
#define STM32_UART_UART5_IRQ_PRIORITY 12 |
|
#define STM32_UART_USART6_IRQ_PRIORITY 12 |
|
#define STM32_UART_USART1_DMA_PRIORITY 0 |
|
#define STM32_UART_USART2_DMA_PRIORITY 0 |
|
#define STM32_UART_USART3_DMA_PRIORITY 0 |
|
#define STM32_UART_UART4_DMA_PRIORITY 0 |
|
#define STM32_UART_UART5_DMA_PRIORITY 0 |
|
#define STM32_UART_USART6_DMA_PRIORITY 0 |
|
#define STM32_UART_UART7_DMA_PRIORITY 0 |
|
#define STM32_UART_UART8_DMA_PRIORITY 0 |
|
#define STM32_UART_DMA_ERROR_HOOK(uartp) osalSysHalt("DMA failure") |
|
|
|
/* |
|
* USB driver system settings. |
|
*/ |
|
#define STM32_USB_USE_OTG1 TRUE |
|
#define STM32_USB_USE_OTG2 TRUE |
|
#define STM32_USB_OTG1_IRQ_PRIORITY 14 |
|
#define STM32_USB_OTG2_IRQ_PRIORITY 14 |
|
#define STM32_USB_OTG1_RX_FIFO_SIZE 512 |
|
#define STM32_USB_OTG2_RX_FIFO_SIZE 1024 |
|
#define STM32_USB_HOST_WAKEUP_DURATION 2 |
|
|
|
/* |
|
* WDG driver system settings. |
|
*/ |
|
#define STM32_WDG_USE_IWDG FALSE |
|
|
|
#define STM32_EXTI_ENHANCED |
|
|
|
// limit ISR count per byte |
|
#define STM32_I2C_ISR_LIMIT 6
|
|
|