/**************************************************************************** * arch/arm/include/stm32f7/chip.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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. * ****************************************************************************/ #ifndef __ARCH_ARM_INCLUDE_STM32F7_CHIP_H #define __ARCH_ARM_INCLUDE_STM32F7_CHIP_H /**************************************************************************** * Included Files ****************************************************************************/ #include /**************************************************************************** * Pre-processor Prototypes ****************************************************************************/ /* STM32F722xx, STM32F723xx, * STM32F745xx, STM32F746xx, STM32F756xx, STM32F765xx, STM32F767xx, * STM32F768xx, STM32F769xx, STM32F777xx and STM32F779xx * Differences between family members: * * ----------- ---------------- ----- ---- ----- ---- ---- ---- ---- * SPI ADC LCD * PART PACKAGE GPIOs I2S CHAN TFT MIPI JPEG CAN * ----------- ---------------- ----- ---- ----- ---- ---- ---- ---- * STM32F722Rx LQFP64 50 3/3 16 No No No 1 * STM32F722Vx LQFP100 82 4/3 16 No No No 1 * STM32F722Zx LQFP144 114 5/3 24 No No No 1 * STM32F722Ix UFBGA176/LQFP176 140 5/3 24 No No No 1 * * STM32F723Vx WLCSP100 79 4/3 16 No No No 1 * STM32F723Zx UFBGA144/LQFP144 112 5/3 24 No No No 1 * STM32F723Ix UFBGA176/LQFP176 138 5/3 24 No No No 1 * * STM32F745Vx LQFP100 82 4/3 16 No No No 2 * STM32F745Zx WLCSP143/LQFP144 114 6/3 24 No No No 2 * STM32F745Ix UFBGA176/LQFP176 140 6/3 24 No No No 2 * STM32F745Bx LQFP208 168 6/3 24 No No No 2 * STM32F745Nx TFBGA216 68 6/3 24 No No No 2 * * STM32F746Vx LQFP100 82 4/3 16 Yes No No 2 * STM32F746Zx WLCSP143/LQFP144 114 6/3 24 Yes No No 2 * STM32F746Ix UFBGA176/LQFP176 140 6/3 24 Yes No No 2 * STM32F746Bx LQFP208 168 6/3 24 Yes No No 2 * STM32F746Nx TFBGA216 168 6/3 24 Yes No No 2 * * STM32F756Vx LQFP100 82 4/3 16 Yes No No 2 * STM32F756Zx WLCSP143/LQFP144 114 6/3 24 Yes No No 2 * STM32F756Ix UFBGA176/LQFP176 140 6/3 24 Yes No No 2 * STM32F756Bx LQFP208 168 6/3 24 Yes No No 2 * STM32F756Nx TFBGA216 168 6/3 24 Yes No No 2 * * STM32F765Vx LQFP100 82 4/3 16 No No No 3 * STM32F765Zx WLCSP143/LQFP144 114 6/3 24 No No No 3 * STM32F765Ix UFBGA176/LQFP176 140 6/3 24 No No No 3 * STM32F765Bx LQFP208 168 6/3 24 No No No 3 * STM32F765Nx TFBGA216 168 6/3 24 No No No 3 * * STM32F767Vx LQFP100 82 4/3 16 Yes No Yes 3 * STM32F767Zx WLCSP143/LQFP144 114 6/3 24 Yes No Yes 3 * STM32F767Ix UFBGA176/LQFP176 132 6/3 24 Yes Yes Yes 3 * STM32F767Bx LQFP208 168 6/3 24 Yes Yes Yes 3 * STM32F767Nx TFBGA216 159 6/3 24 Yes Yes Yes 3 * * STM32F768Ax WLCSP180 129 6/3 24 Yes Yes Yes 3 * * STM32F769Vx LQFP100 82 4/3 16 Yes No Yes 3 * STM32F769Zx LQFP144 114 6/3 24 Yes No Yes 3 * STM32F769Ix UFBGA176/LQFP176 132 6/3 24 Yes Yes Yes 3 * STM32F769Bx LQFP208 168 6/3 24 Yes Yes Yes 3 * STM32F769Nx TFBGA216 159 6/3 24 Yes Yes Yes 3 * * STM32F769Ax WLCSP180 129 6/3 24 Yes Yes Yes 3 * * STM32F777Vx LQFP100 82 4/3 16 Yes No Yes 3 * STM32F777Zx LQFP144 114 6/3 24 Yes No Yes 3 * STM32F777Ix UFBGA176/LQFP176 132 6/3 24 Yes Yes Yes 3 * STM32F777Bx LQFP208 159 6/3 24 Yes Yes Yes 3 * STM32F777Nx TFBGA216 159 6/3 24 Yes Yes Yes 3 * * STM32F778Ax WLCSP180 129 6/3 24 Yes Yes Yes 3 * * STM32F779Ix UFBGA176/LQFP176 132 6/3 24 Yes Yes Yes 3 * STM32F779Bx LQFP208 159 6/3 24 Yes Yes Yes 3 * STM32F779Nx TFBGA216 159 6/3 24 Yes Yes Yes 3 * STM32F779Ax WLCSP180 129 6/3 24 Yes Yes Yes 3 * ----------- ---------------- ----- ---- ----- ---- ---- ---- ---- * * * ----------- ---- ----- ----- ---- ------------ ------ * * PART ETH DFSDM CRYPTO FPU RAM L1 * ----------- ---- ----- ----- ---- ------------ ------ * STM32F722Rx No No No SFPU (176+16+64) 8+8 * STM32F722Vx No No No SFPU (176+16+64) 8+8 * STM32F722Zx No No No SFPU (176+16+64) 8+8 * STM32F722Ix No No No SFPU (176+16+64) 8+8 * * STM32F723Vx No No No SFPU (176+16+64) 8+8 * STM32F723Zx No No No SFPU (176+16+64) 8+8 * STM32F723Ix No No No SFPU (176+16+64) 8+8 * * STM32F745Vx Yes No No SFPU (240+16+64) 4+4 * STM32F745Zx Yes No No SFPU (240+16+64) 4+4 * STM32F745Ix Yes No No SFPU (240+16+64) 4+4 * STM32F745Bx Yes No No SFPU (240+16+64) 4+4 * STM32F745Nx Yes No No SFPU (240+16+64) 4+4 * * STM32F746Vx Yes No No SFPU (240+16+64) 4+4 * STM32F746Zx Yes No No SFPU (240+16+64) 4+4 * STM32F746Ix Yes No No SFPU (240+16+64) 4+4 * STM32F746Bx Yes No No SFPU (240+16+64) 4+4 * STM32F746Nx Yes No No SFPU * * STM32F756Vx Yes No Yes SFPU (240+16+64) 4+4 * STM32F756Zx Yes No Yes SFPU (240+16+64) 4+4 * STM32F756Ix Yes No Yes SFPU (240+16+64) 4+4 * STM32F756Bx Yes No Yes SFPU (240+16+64) 4+4 * STM32F756Nx Yes No Yes SFPU (240+16+64) 4+4 * * STM32F765Vx Yes Yes No DFPU (368+16+128) 16+16 * STM32F765Zx Yes Yes No DFPU (368+16+128) 16+16 * STM32F765Ix Yes Yes No DFPU (368+16+128) 16+16 * STM32F765Bx Yes Yes No DFPU (368+16+128) 16+16 * STM32F765Nx Yes Yes No DFPU (368+16+128) 16+16 * * STM32F767Vx Yes Yes No DFPU (368+16+128) 16+16 * STM32F767Zx Yes Yes No DFPU (368+16+128) 16+16 * STM32F767Ix Yes Yes No DFPU (368+16+128) 16+16 * STM32F767Bx Yes Yes No DFPU (368+16+128) 16+16 * STM32F767Nx Yes Yes No DFPU (368+16+128) 16+16 * * STM32F768Ax No Yes No DFPU (368+16+128) 16+16 * * STM32F769Vx Yes Yes No DFPU (368+16+128) 16+16 * STM32F769Zx Yes Yes No DFPU (368+16+128) 16+16 * STM32F769Ix Yes Yes No DFPU (368+16+128) 16+16 * STM32F769Bx Yes Yes No DFPU (368+16+128) 16+16 * STM32F769Nx Yes Yes No DFPU (368+16+128) 16+16 * * STM32F769Ax No Yes No DFPU (368+16+128) 16+16 * * STM32F777Vx Yes Yes Yes DFPU (368+16+128) 16+16 * STM32F777Zx Yes Yes Yes DFPU (368+16+128) 16+16 * STM32F777Ix Yes Yes Yes DFPU (368+16+128) 16+16 * STM32F777Bx Yes Yes Yes DFPU (368+16+128) 16+16 * STM32F777Nx Yes Yes Yes DFPU (368+16+128) 16+16 * * STM32F778Ax No Yes Yes DFPU (368+16+128) 16+16 * * STM32F779Ix Yes Yes Yes DFPU (368+16+128) 16+16 * STM32F779Bx Yes Yes Yes DFPU (368+16+128) 16+16 * STM32F779Nx Yes Yes Yes DFPU (368+16+128) 16+16 * STM32F779Ax No Yes Yes DFPU (368+16+128) 16+16 * ----------- ---- ----- ---- ----- ------------ ------ * Parts STM32F72xxC & STM32F73xxC have 256Kb of FLASH * Parts STM32F72xxE & STM32F73xxE have 512Kb of FLASH * Parts STM32F74xxE have 512Kb of FLASH * Parts STM32F74xxG have 1024Kb of FLASH * Parts STM32F74xxI have 2048Kb of FLASH * * The correct FLASH size will be set CONFIG_STM32F7_FLASH_CONFIG_x * or overridden with CONFIG_STM32F7_FLASH_OVERRIDE_x * */ #if defined(CONFIG_ARCH_CHIP_STM32F722RC) || \ defined(CONFIG_ARCH_CHIP_STM32F722RE) || \ defined(CONFIG_ARCH_CHIP_STM32F722VC) || \ defined(CONFIG_ARCH_CHIP_STM32F722VE) || \ defined(CONFIG_ARCH_CHIP_STM32F722ZC) || \ defined(CONFIG_ARCH_CHIP_STM32F722ZE) || \ defined(CONFIG_ARCH_CHIP_STM32F722IC) || \ defined(CONFIG_ARCH_CHIP_STM32F722IE) || \ defined(CONFIG_ARCH_CHIP_STM32F723RC) || \ defined(CONFIG_ARCH_CHIP_STM32F723RE) || \ defined(CONFIG_ARCH_CHIP_STM32F723VC) || \ defined(CONFIG_ARCH_CHIP_STM32F723VE) || \ defined(CONFIG_ARCH_CHIP_STM32F723ZC) || \ defined(CONFIG_ARCH_CHIP_STM32F723ZE) || \ defined(CONFIG_ARCH_CHIP_STM32F723IC) || \ defined(CONFIG_ARCH_CHIP_STM32F723IE) || \ defined(CONFIG_ARCH_CHIP_STM32F745VG) || \ defined(CONFIG_ARCH_CHIP_STM32F745VE) || \ defined(CONFIG_ARCH_CHIP_STM32F745IG) || \ defined(CONFIG_ARCH_CHIP_STM32F745IE) || \ defined(CONFIG_ARCH_CHIP_STM32F745ZE) || \ defined(CONFIG_ARCH_CHIP_STM32F745ZG) || \ defined(CONFIG_ARCH_CHIP_STM32F746BG) || \ defined(CONFIG_ARCH_CHIP_STM32F746VG) || \ defined(CONFIG_ARCH_CHIP_STM32F746VE) || \ defined(CONFIG_ARCH_CHIP_STM32F746BE) || \ defined(CONFIG_ARCH_CHIP_STM32F746ZG) || \ defined(CONFIG_ARCH_CHIP_STM32F746IE) || \ defined(CONFIG_ARCH_CHIP_STM32F746NG) || \ defined(CONFIG_ARCH_CHIP_STM32F746NE) || \ defined(CONFIG_ARCH_CHIP_STM32F746ZE) || \ defined(CONFIG_ARCH_CHIP_STM32F746IG) || \ defined(CONFIG_ARCH_CHIP_STM32F756NG) || \ defined(CONFIG_ARCH_CHIP_STM32F756BG) || \ defined(CONFIG_ARCH_CHIP_STM32F756IG) || \ defined(CONFIG_ARCH_CHIP_STM32F756VG) || \ defined(CONFIG_ARCH_CHIP_STM32F756ZG) || \ defined(CONFIG_ARCH_CHIP_STM32F765NI) || \ defined(CONFIG_ARCH_CHIP_STM32F765VI) || \ defined(CONFIG_ARCH_CHIP_STM32F765VG) || \ defined(CONFIG_ARCH_CHIP_STM32F765BI) || \ defined(CONFIG_ARCH_CHIP_STM32F765NG) || \ defined(CONFIG_ARCH_CHIP_STM32F765ZG) || \ defined(CONFIG_ARCH_CHIP_STM32F765ZI) || \ defined(CONFIG_ARCH_CHIP_STM32F765IG) || \ defined(CONFIG_ARCH_CHIP_STM32F765BG) || \ defined(CONFIG_ARCH_CHIP_STM32F765II) || \ defined(CONFIG_ARCH_CHIP_STM32F767NG) || \ defined(CONFIG_ARCH_CHIP_STM32F767IG) || \ defined(CONFIG_ARCH_CHIP_STM32F767VG) || \ defined(CONFIG_ARCH_CHIP_STM32F767ZG) || \ defined(CONFIG_ARCH_CHIP_STM32F767NI) || \ defined(CONFIG_ARCH_CHIP_STM32F767VI) || \ defined(CONFIG_ARCH_CHIP_STM32F767BG) || \ defined(CONFIG_ARCH_CHIP_STM32F767ZI) || \ defined(CONFIG_ARCH_CHIP_STM32F767II) || \ defined(CONFIG_ARCH_CHIP_STM32F769BI) || \ defined(CONFIG_ARCH_CHIP_STM32F769II) || \ defined(CONFIG_ARCH_CHIP_STM32F769BG) || \ defined(CONFIG_ARCH_CHIP_STM32F769NI) || \ defined(CONFIG_ARCH_CHIP_STM32F769AI) || \ defined(CONFIG_ARCH_CHIP_STM32F769NG) || \ defined(CONFIG_ARCH_CHIP_STM32F769IG) || \ defined(CONFIG_ARCH_CHIP_STM32F777ZI) || \ defined(CONFIG_ARCH_CHIP_STM32F777VI) || \ defined(CONFIG_ARCH_CHIP_STM32F777NI) || \ defined(CONFIG_ARCH_CHIP_STM32F777BI) || \ defined(CONFIG_ARCH_CHIP_STM32F777II) || \ defined(CONFIG_ARCH_CHIP_STM32F778AI) || \ defined(CONFIG_ARCH_CHIP_STM32F779II) || \ defined(CONFIG_ARCH_CHIP_STM32F779NI) || \ defined(CONFIG_ARCH_CHIP_STM32F779BI) || \ defined(CONFIG_ARCH_CHIP_STM32F779AI) #else # error STM32 F7 chip not identified #endif /* Size SRAM */ #if defined(CONFIG_STM32F7_STM32F72XX) || defined(CONFIG_STM32F7_STM32F73XX) # define STM32F7_SRAM1_SIZE (176*1024) /* 176Kb SRAM1 on AHB bus Matrix */ # define STM32F7_SRAM2_SIZE (16*1024) /* 16Kb SRAM2 on AHB bus Matrix */ # if defined(CONFIG_ARMV7M_HAVE_DTCM) # define STM32F7_DTCM_SRAM_SIZE (64*1024) /* 64Kb DTCM SRAM on TCM interface */ # else # define STM32F7_DTCM_SRAM_SIZE (0) /* No DTCM SRAM on TCM interface */ # endif # if defined(CONFIG_ARMV7M_HAVE_ITCM) # define STM32F7_ITCM_SRAM_SIZE (16*1024) /* 16Kb ITCM SRAM on TCM interface */ # else # define STM32F7_ITCM_SRAM_SIZE (0) /* No ITCM SRAM on TCM interface */ # endif #elif defined(CONFIG_STM32F7_STM32F74XX) || defined(CONFIG_STM32F7_STM32F75XX) # define STM32F7_SRAM1_SIZE (240*1024) /* 240Kb SRAM1 on AHB bus Matrix */ # define STM32F7_SRAM2_SIZE (16*1024) /* 16Kb SRAM2 on AHB bus Matrix */ # if defined(CONFIG_ARMV7M_HAVE_DTCM) # define STM32F7_DTCM_SRAM_SIZE (64*1024) /* 64Kb DTCM SRAM on TCM interface */ # else # define STM32F7_DTCM_SRAM_SIZE (0) /* No DTCM SRAM on TCM interface */ # endif # if defined(CONFIG_ARMV7M_HAVE_ITCM) # define STM32F7_ITCM_SRAM_SIZE (16*1024) /* 16Kb ITCM SRAM on TCM interface */ # else # define STM32F7_ITCM_SRAM_SIZE (0) /* No ITCM SRAM on TCM interface */ # endif #elif defined(CONFIG_STM32F7_STM32F76XX) || defined(CONFIG_STM32F7_STM32F77XX) # define STM32F7_SRAM1_SIZE (368*1024) /* 368Kb SRAM1 on AHB bus Matrix */ # define STM32F7_SRAM2_SIZE (16*1024) /* 16Kb SRAM2 on AHB bus Matrix */ # if defined(CONFIG_ARMV7M_HAVE_DTCM) # define STM32F7_DTCM_SRAM_SIZE (128*1024) /* 128Kb DTCM SRAM on TCM interface */ # else # define STM32F7_DTCM_SRAM_SIZE (0) /* No DTCM SRAM on TCM interface */ # endif # if defined(CONFIG_ARMV7M_HAVE_ITCM) # define STM32F7_ITCM_SRAM_SIZE (16*1024) /* 16Kb ITCM SRAM on TCM interface */ # else # define STM32F7_ITCM_SRAM_SIZE (0) /* No ITCM SRAM on TCM interface */ # endif #else # error STM32 F7 chip Family not identified #endif /* Common to all Advanced (vs Foundation) Family members */ #if defined(CONFIG_STM32F7_STM32F72XX) || defined(CONFIG_STM32F7_STM32F73XX) # define STM32F7_NSPDIFRX 0 /* Not supported */ # define STM32F7_NGPIO 9 /* 9 GPIO ports, GPIOA-I */ # define STM32F7_NI2C 3 /* I2C1-3 */ #else # define STM32F7_NSPDIFRX 4 /* 4 SPDIFRX inputs */ # define STM32F7_NGPIO 11 /* 11 GPIO ports, GPIOA-K */ # define STM32F7_NI2C 4 /* I2C1-4 */ #endif /* Common to all Family members */ # define STM32F7_NATIM 2 /* Two advanced timers TIM1 and 8 */ # define STM32F7_NGTIM32 2 /* 32-bit general timers TIM2 and 5 with DMA */ # define STM32F7_NGTIM16 2 /* 16-bit general timers TIM3 and 4 with DMA */ # define STM32F7_NGTIMNDMA 6 /* 16-bit general timers TIM9-14 without DMA */ # define STM32F7_NBTIM 2 /* Two basic timers, TIM6-7 */ # define STM32F7_NUART 4 /* UART 4-5 and 7-8 */ # define STM32F7_NUSART 4 /* USART1-3 and 6 */ # define STM32F7_NI2S 3 /* I2S1-2 (multiplexed with SPI1-3) */ # define STM32F7_NUSBOTGFS 1 /* USB OTG FS */ # define STM32F7_NUSBOTGHS 1 /* USB OTG HS */ # define STM32F7_NSAI 2 /* SAI1-2 */ # define STM32F7_NDMA 2 /* DMA1-2 */ # define STM32F7_NADC 3 /* 12-bit ADC1-3, number of channels vary */ # define STM32F7_NDAC 2 /* 12-bit DAC1-2 */ # define STM32F7_NCAPSENSE 0 /* No capacitive sensing channels */ # define STM32F7_NCRC 1 /* CRC */ /* TBD FPU Configuration */ #if defined(CONFIG_ARCH_HAVE_FPU) #else #endif #if defined(CONFIG_ARCH_HAVE_DPFPU) #else #endif /* Diversification based on Family and package */ #if defined(CONFIG_STM32F7_HAVE_FMC) # define STM32F7_NFMC 1 /* Have FMC memory controller */ #else # define STM32F7_NFMC 0 /* No FMC memory controller */ #endif #if defined(CONFIG_STM32F7_HAVE_ETHRNET) # define STM32F7_NETHERNET 1 /* 100/100 Ethernet MAC */ #else # define STM32F7_NETHERNET 0 /* No 100/100 Ethernet MAC */ #endif #if defined(CONFIG_STM32F7_HAVE_RNG) # define STM32F7_NRNG 1 /* Random number generator (RNG) */ #else # define STM32F7_NRNG 0 /* No Random number generator (RNG) */ #endif #if defined(CONFIG_STM32F7_HAVE_SPI5) && defined(CONFIG_STM32F7_HAVE_SPI6) # define STM32F7_NSPI 6 /* SPI1-6 (Advanced Family Except V series) */ #elif defined(CONFIG_STM32F7_HAVE_SPI5) # define STM32F7_NSPI 5 /* SPI1-5 (Foundation Family Except V & R series) */ #elif defined(CONFIG_STM32F7_HAVE_SPI4) # define STM32F7_NSPI 4 /* SPI1-4 V series */ #else # define STM32F7_NSPI 3 /* SPI1-3 R series */ #endif #if defined(CONFIG_STM32F7_HAVE_SDMMC2) # define STM32F7_NSDMMC 2 /* 2 SDMMC interfaces */ #else # define STM32F7_NSDMMC 1 /* 1 SDMMC interface */ #endif #if defined(CONFIG_STM32F7_HAVE_CAN3) # define STM32F7_NCAN 3 /* CAN1-3 */ #elif defined(CONFIG_STM32F7_HAVE_CAN2) # define STM32F7_NCAN 2 /* CAN1-2 */ #else # define STM32F7_NCAN 1 /* CAN1 only */ #endif #if defined(CONFIG_STM32F7_HAVE_DCMI) # define STM32F7_NDCMI 1 /* Digital camera interface (DCMI) */ #else # define STM32F7_NDCMI 0 /* No Digital camera interface (DCMI) */ #endif #if defined(CONFIG_STM32F7_HAVE_DSIHOST) # define STM32F7_NDSIHOST 1 /* Have MIPI DSI Host */ #else # define STM32F7_NDSIHOST 0 /* No MIPI DSI Host */ #endif #if defined (CONFIG_STM32F7_HAVE_LTDC) # define STM32F7_NLCDTFT 1 /* One LCD-TFT */ #else # define STM32F7_NLCDTFT 0 /* No LCD-TFT */ #endif #if defined(CONFIG_STM32F7_HAVE_DMA2D) /* bf20171107 Swapped defines they were reversed. */ # define STM32F7_NDMA2D 1 /* DChrom-ART Accelerator™ (DMA2D) */ #else # define STM32F7_NDMA2D 0 /* No DChrom-ART Accelerator™ (DMA2D) */ #endif #if defined(CONFIG_STM32F7_HAVE_JPEG) #define STM32F7_NJPEG 1 /* One JPEG Converter */ #else #define STM32F7_NJPEG 0 /* No JPEG Converter */ #endif #if defined(CONFIG_STM32F7_HAVE_CRYP) #define STM32F7_NCRYP 1 /* One CRYP engine */ #else #define STM32F7_NCRYP 0 /* No CRYP engine */ #endif #if defined(CONFIG_STM32F7_HAVE_HASH) #define STM32F7_NHASH 1 /* One HASH engine */ #else #define STM32F7_NHASH 0 /* No HASH engine */ #endif #if defined(CONFIG_STM32F7_HAVE_DFSDM) #define STM32F7_NDFSDM 4 /* One set of 4 Digital filters */ #else #define STM32F7_NDFSDM 0 /* No Digital filters */ #endif /* NVIC priority levels *****************************************************/ /* 16 Programmable interrupt levels */ #define NVIC_SYSH_PRIORITY_MIN 0xf0 /* All bits set in minimum priority */ #define NVIC_SYSH_PRIORITY_DEFAULT 0x80 /* Midpoint is the default */ #define NVIC_SYSH_PRIORITY_MAX 0x00 /* Zero is maximum priority */ #define NVIC_SYSH_PRIORITY_STEP 0x10 /* Four bits of interrupt priority used */ #endif /* __ARCH_ARM_INCLUDE_STM32F7_CHIP_H */