[参考译文] CC3351：带 SDIO 模式的 STM32 端口

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https://e2e.ti.com/support/wireless-connectivity/wi-fi-group/wifi/f/wi-fi-forum/1573042/cc3351-stm32-port-with-sdio-mode

器件型号：CC3351

工具/软件：

大家好、我一直使用 SPI 通过 STM32U5 系列测试 CC3351。

我使用了 cc33xx_RTOS_MCU_PACKAGE_R7_2 封装及其 SPI 移植示例。经过一些试错后、我能够通过 SPI 与 CC3351 进行通信。

现在我要使用相同的 SDIO 引脚。我正在尝试使用 HAL 提供的 SDIO 函数进行移植。我在这里失败了。

这是我尝试过的:

#include "sdio_adapt.h"
#include "stm32u5xx_hal.h"

extern SDIO_HandleTypeDef hsdio1;

// Add a new flag for IO-only devices

int sdioAdapt_Init() {
hsdio1.Instance = SDMMC1;
hsdio1.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
hsdio1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
hsdio1.Init.BusWide = SDMMC_BUS_WIDE_4B;
hsdio1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
hsdio1.Init.ClockDiv = 80 - 1;
return HAL_SDIO_Init(&hsdio1) ;
// if (HAL_SDIO_Init(&hsdio1) != HAL_OK) {
// Error_Handler();
// }
//
// return HAL_OK;

}

int sdioAdapt_read(uint32_t address, uint8_t *data, uint32_t length) {
HAL_StatusTypeDef ret;

if (length == 1) {
// CMD52 single-byte read
HAL_SDIO_DirectCmd_TypeDef arg = {0};
arg.Reg_Addr = address;
arg.ReadAfterWrite = 0;
arg.IOFunctionNbr = 0; // CC3351 SDIO function (check datasheet!)

ret = HAL_SDIO_ReadDirect(&hsdio1, &arg, data);
} else {
// CMD53 multi-byte read
HAL_SDIO_ExtendedCmd_TypeDef arg = {0};
arg.Reg_Addr = address;
arg.IOFunctionNbr = 0; // CC3351 SDIO function number
arg.OpCode = 1; // incrementing address
arg.Block_Mode = 0; // 0=byte mode, 1=block mode

ret = HAL_SDIO_ReadExtended(&hsdio1, &arg, data, length, HAL_MAX_DELAY);
}

return (ret == HAL_OK) ? 0 : -1;
}

int sdioAdapt_write(uint32_t address, uint8_t *data, uint32_t length) {
HAL_StatusTypeDef ret;

if (length == 1) {
// CMD52 single-byte write
HAL_SDIO_DirectCmd_TypeDef arg = {0};
arg.Reg_Addr = address;
arg.ReadAfterWrite = 0;
arg.IOFunctionNbr = 1;

ret = HAL_SDIO_WriteDirect(&hsdio1, &arg, *data);
} else {
// CMD53 multi-byte write
HAL_SDIO_ExtendedCmd_TypeDef arg = {0};
arg.Reg_Addr = address;
arg.IOFunctionNbr = 1;
arg.OpCode = 1;
arg.Block_Mode = 0;

ret = HAL_SDIO_WriteExtended(&hsdio1, &arg, data, length, HAL_MAX_DELAY);
}

return (ret == HAL_OK) ? 0 : -1;
}

int sdioAdapt_deInit() {
HAL_SDIO_DeInit(&hsdio1);
return 0;
}